NEC Projector User Supportware
Multi Screen Tool
User’s Manual
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Effects of stacking/tiling correction
Stacking correction
Create the geometric correction data so that the projected images
of two to four projectors are superimposed on one another.
Stacking lets you achieve high brightness projections.
Tiling correction
Create geometric correction data to project a single image using
two to four projectors.
Also, use the edge blending function to adjust for the difference
in brightness at the seams where the projected images overlap to
achieve a seamless image with a sense of unity.
With a short projection distance, you can achieve high brightness
projections.
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• The resolution of the projected image is the same as
the projector's display resolution.
Note
• Enlarge, reduce or mask the projected image of the
projector with the same image signal input and create
the geometric correction data so that it is contained
within the screen (specified projection range) at the
beginning.
This is not a function for inputting controlled image
signals to multiple projectors to form a single projected
image.
• When the projector's on-screen menu is used while
projecting in multi screen with tiling correction, the edge
blending function is canceled while the on-screen menu
is displayed, resulting in bands of different brightnesses
at the overlapping parts of the projected images. (The
image returns to as it was before when the on-screen
menu turns off.)
- Similarly, when the input signal is switched and the
signal name is displayed, the edge blending function
is canceled. We recommend using the projector's on-
Adjustment of the
projected images'
seams with the edge
blending function
→
→
screen menu to set SETUP
DISPLAY to [OFF] beforehand.
MENU
SOURCE
• The edge blending function is optimized for when the
presetting is set to "Graphic".
If the presetting differs depending on the input signal,
differences in brightness may occur at the parts where
the projected images overlap.
• When using the tiling function with the NP-PA500U/NP-
PX750U/NP-PH1000U/NP-PH1400U, pay attention to
the following:
- Only signals with a vertical frequency of 48Hz to 60Hz are supported.
When signals other than the above are input, they are projected with the edge blending function canceled.
(Bands of different brightnesses appear at the overlapping parts of the projected images.)
- The PIP/PBP function and the remote control's sectional zoom function cannot be used.
• When using the NP-PX750 series, unify the color wheel types (6 Segment-White / 6 Segment-Color) included with the
main unit.
• This cannot be used simultaneously with the edge blending function on the projector's on-screen menu.
Turn off the setting on the on-screen menu before performing stacking/tiling correction.
• Stacking/tiling correction will not be applied on video projected by the STEREO DVI terminal of NP-PH1400U.
Reference
• When performing tiling correction with two projectors,
the images are corrected with respect to the screen's
frame as shown on the diagram at the right, and the
aspect ratio is not maintained.
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Precautions in Projector Installation
For details on the installation precautions, see the operating instructions of the projector you are using.
The precautions below are for the NP-PA600 series.
•
Leave sufficient space to the left and right of the projectors so that there is no obstruction of projector air intake
and exhaust. Obstruction of air intake and exhaust will result in a rise of the internal temperature of the projector
and will cause breakdown.
•
Do not physically stack projectors one above the other.
Projectors that are physically stacked could fall causing damage and breakdown of the projectors.
Installation Example Using 2 Projectors
In consideration of using this software, we recommend an installation like the following when the installation
combines 2 projectors.
Installation Examples
Front
Right side
Rear
Ventilation outlet
Ventilation inlet
Cabinet
Exhaust
Cabinet
Intake
Cabinet
• Please request ceiling mount and other special installation at your store of purchase.
Installation should never be undertaken by the customer. Doing so could result in
the projectors falling or in injury. A strong cabinet that will support the weight of the
projectors should be used in this installation. Do not stack the projectors directly one
upon the other.
Warning
Note
• Please see the user's manual of the projector for information about the range of projection distance.
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Restrictions on Projectors that Are to Be Installed
•
•
•
Install all projectors on the same network.
Use projectors with the same resolution.
Use the same model to the extent possible.
*
When there is a difference in the brightness of the projectors, the web camera might not accurately read the
projection image at the time of calibration.
*
Differences in brightness can also be caused by the [ECO MODE] setting. Make the same [ECO MODE]
setting on all the installed projectors.
•
Please note that the use of this software for [DESKTOP REAR] and [CEILING REAR] projector projection
methods is not supported.
Application Environment of the Multi Screen Tool
The following computer environment is recommended during calibration.
Supported operating systems: Windows 8 (32-bit/64-bit version), Windows 7(32-bit/64-bit), Windows Vista(32-bit/64-
bit) or Windows XP(32-bit)
Intel Core 2 Duo 2.6 GHz or greater processor
2 GB or more memory capacity
1 GB or more free hard disk space
Note
• Use of the Multi Screen Tool should be performed by an "Administrator" for Windows 8/Windows 7/
Windows Vista, and a "Computer Administrator" for Windows XP.
• Windows XP does not support correction when not using the web camera.
Required Components
.NET Framework 3.5
Microsoft Visual C++ 2008 redistributable package (x86)
DirectX 9 (Windows XP)
DirectX 10 (Windows 8/7/Vista)
Supported Equipment
NP-PA600X/NP-PA550W/NP-PA500U*2 (firmware version 1.02 or later)
NP-PX750U*2/NP-PX700W/NP-PX800X (firmware version 1.03 or later)
Projector*1
NP-PH1000U*2 (firmware version 1.04 or later)
NP-PH1400U*2
Logitech® Webcam Pro 9000
Web camera
Logitech® HD Pro Webcam C910
Logitech® HD Pro Webcam C920
1
* It is not possible to use projectors with different resolutions simultaneously. Use projectors with the same resolution.
2
Supported Screens
Only flat screens are supported. Curved screens are not supported.
Screen widths of up to 10 meters are supported, but it may not be possible to calibrate properly for screens on which
the difference in brightness is great between the center and the edges.
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Table of Contents
1. Installation of the Multi Screen Tool ...........................................................
Installing the Multi Screen Tool ..................................................................................9
Uninstallation of the Multi Screen Tool.....................................................................12
Windows XP........................................................................................................12
3. Multi Screen Tool Settings ..........................................................................
Starting the Multi Screen Tool .................................................................................17
Names of the Multi Screen Tool Screen...................................................................17
Multi Screen Tool Menu............................................................................................19
Names of the Calibration Screen.............................................................................20
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1. Installation of the Multi Screen Tool
Preparation: Save the downloaded Multi Screen Tool file to the desired location
* The same installation procedure is used for Windows 8/Windows 7/Windows Vista and
Windows XP.
This software cannot be used simultaneously with the Stacking Correction Tool. If the Stacking Correction
Note
Tool is already installed, uninstall it.
Installing the Multi Screen Tool
1. Double click MSTxxx.exe
The installation screen appears. Click [Next (N)].
Note
NET Framework 3.5 and Microsoft Visual C++ 2008 redistributable
package (x86) are required to use Multi Screen Tool. When this
condition is not satisfied, the screen on the right will be displayed
when MSTxxx.exe is started up.
When [Install] is selected, a connection will be made with the Internet
and downloading of the required component files from the distribution
source site will begin.
When the download is completed, the setup program will start
automatically. Follow the instructions on the screen and complete the
.NET Framework 3.5 Installation Screen
setup.
*
When making a new installation of .NET Framework 3.5 on
Windows XP (i.e., an older version of .NET Framework has not
been installed), the required component files will have a size of
about 63 MB (and about 20 MB when using Windows Vista). It
could take a considerable time from the start of downloading to the
completion of installation.
Also, if requested to restart Windows after installing .NET
Framework 3.5, please follow the instructions and restart Windows.
The installation of the Multi Screen Tool will continue after
restarting Windows.
*
If connection cannot be made with the Internet, use another
computer that can connect with the Internet and access the URL
listed below, then download the required component files and use
them.
[.NET Framework 3.5]
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1. Installation of the Multi Screen Tool
2. Select "I accept the terms in the license
agreement" and click [Next].
Please read the content of the END USER LI-
CENSE AGREEMENT carefully.
A screen for verifying the installation location will be dis-
played.
3. Click [Next]
To change the installation location, click [Change] and
specify the installation location.
A screen notifying that the installation preparation has
been completed will be displayed.
4. Click [Install]
The installation will begin.
As the installation proceeds, installation will start for appli-
cations required in the operation of the Multi Screen Tool.
5. Click [OK]
The EasyStack installation screen appears.
If a language selection screen is displayed, select the
language and click [OK].
Note
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1. Installation of the Multi Screen Tool
DirectX 10 & above (DirectX 9 for Windows XP) is required
to use this application. When this condition is not satisfied,
the screen on the right will be displayed.
Note
Please follow the instructions on the screen to complete
the set up of DirectX.
DirectX Installation Screen
6. Click [Next (N)].
A screen asking you where to install the software appears.
7. Click [Install]
The installation will start.
To change the installation location, click [Browse…] and specify
the installation location.
8. Click [Finish]
Installation of EasyStack is completed and the Multi Screen Tool's
installation completed screen appears.
9. Click [Finish]
This completes the installation of the Multi Screen Tool. Click [Fin-
ish] on the screen and close the setup program.
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1. Installation of the Multi Screen Tool
Uninstallation of the Multi Screen Tool
Windows 8/Windows 7/Windows Vista
Select the Multi Screen Tool from [Uninstall a program] under [Control Panel] and uninstall it.
Windows XP
Select the Multi Screen Tool from [Add/Remove Programs] under [Control Panel] and uninstall it.
12
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2. Installation and Connection of Equipment
Connections for stacking/tiling correction
When using the web camera
LAN
LAN
LAN
Web camera
PA600 series
PA600 series
PA600 series
To USB port
To LAN port
Computer (for correction)
When not using the web camera (connection example using analogue RGB signal)
LAN
PA600 series
PA600 series
PA600 series
Computer cable (VGA)
1
2
3
Analog RGB signal divider
(Mini D-Sub 15 pin)
Analog RGB output
Analog RGB input
To LAN port
Computer cable (VGA)
To displayed output
connector (Mini D-Sub 15 pin)
Computer (for correction)
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2. Installation and Connection of Equipment
Common to both cases of using/not using the web camera
Note
• Plug each projector into a power outlet.
• Connect each of the projectors to the same network.
• Use LAN cable that supports Category 5 or higher for the connection to the network.
Only when using the web camera
Note
Note
• Install the web camera facing the projection image.
• The photographic coverage of the web camera is 30˚.
Only when not using the web camera
• The video output of a computer with Multi Screen Tool needs to be projected in the projector.
• HDMI or DisplayPort cable can also be used for the video signal to the projector.
• Please install each projector directly in front of the screen in order to minimize the lens distortion. When
the projector is installed in a slanted position, the misalignment in the overlapping videos will become
larger and correction accuracy will become worse.
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2. Installation and Connection of Equipment
Connections for Projecting an Image
For analog RGB signals
COMPUTER1 IN
COMPUTER1 IN
COMPUTER1 IN
Projector
Projector
Projector
Computer cable (VGA)
Computer cable (VGA)
1
2
3
Analog RGB signal divider
(Mini D-Sub 15 pin)
Analog RGB output
Computer
Analog RGB input
To displayed output
connector (Mini D-Sub 15 pin)
Computer cable (VGA)
•
When the projectors are connected with a daisy chain connection, the RGB video signal will be
attenuated and its projection might not be possible. Use an RGB signal divider as illustrated in the
above connection diagram.
Note
Daisy Chain Connection
COMPUTER1 IN
MONITOR OUT
COMPUTER1 IN
MONITOR OUT
RGB output
connector of PC
To Computer 1 input
of the next projector
Reference
• Connections can also be made using commercially available BNC cable.
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2. Installation and Connection of Equipment
Make connections as illustrated in the diagrams below when connecting video equipment other than the computer
(e.g., DVD players etc.).
For digital RGB signals
HDMI IN
HDMI IN
HDMI IN
Projector
Projector
Projector
HDMI cable
HDMI cable
3
1
2
HDMI Output
HDMI signal distributor
HDMI Input
HDMI cable
S-VIDEO VIDEO
VIDEO OUT
L
R
HDMI OUT
AUDIO OUT
DVD player
Video signal
VIDEO IN
VIDEO IN
VIDEO IN
Projector
Projector
Projector
Video cable
Video cable
Video cable
1
2
3
Video output
Video signal
divider
Video input
Video cable
R
L
VIDEO S-VIDEO
Video output
Audio output
DVD player / Video deck
Reference
• Connections can also be made via network using Image Express Utility 2.0.
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3. Multi Screen Tool Settings
Starting the Multi Screen Tool
For Windows 8
Right click the start screen, and select Multi Screen Tool from [All Apps] to start up.
For Windows 7/Windows Vista/Windows XP
The same Multi Screen Tool starting method is used for Windows 7/Windows Vista and Windows XP.
→
→
Select the Multi Screen Tool from [Start] [All Programs] [NEC Projector User Supportware] and start it.
Names of the Multi Screen Tool Screen
Multi Screen Tool Main Screen
❶
❷
❸
❹
❺
Displays the connection order, IP address, projector name, and resolution for the currently
connected projectors.
❶
❷
List of Connected Projectors
Destination of Geometric
Select settings 1 to 3 of the projector's [GEOMETRIC CORRECTION] onscreen menu as
the [GEOMETRIC CORRECTION] data storage location after stacking correction.
Correction Data
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3. Multi Screen Tool Settings
Master Projector:
The projector that will serve as the master is determined, and the projection image
of another projector undergoes stacking correction so that it is in agreement with the
projection image of the master projector.
In this instance, the [GEOMETRIC CORRECTION] of the master projector does not
change.
Auto:
Stacking
When there is a screen frame, the projection image is corrected so as to fit inside that
frame.
When there is no frame, correction is applied so that the area of the rectangle is
maximized within the superimposed portion of the projection area.
The aspect ratio of the input signal is not maintained at this time.
❸
Calibration
Mode
Specify Four Points:
On the web camera's captured images, set points at the four corners of the
image for tiling projection and correct to fit within this range.
Auto:
Tiling
When the screen has a frame, the projected image is corrected so as to fit inside
that frame.
When there is no frame, correction is applied so that the area of the rectangle is
maximized within the projection range.
The aspect ratio of the input signal is not maintained at this time.
When not using the camera, display the calibration screen during stacking correction,
and the layout configuration screen during tiling correction.
❹
[Next]
❺
Closes the Multi Screen Tool.
[Exit]
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3. Multi Screen Tool Settings
Multi Screen Tool Menu
File
Open the GCXS file (extension .gcxs) saved with the [Save as] command
and send the geometric correction data to all connected projectors.
When using a GCXS file to reproduce projected images to which
stacking/tiling correction has been applied, make sure the installation and
connections of all the projectors are the same as when the GCXS file was
saved.
Open
Projected images to which stacking/tiling correction has been applied
cannot be reproduced if the order in which the projectors are connected,
their position of installation, the projection angle (including tilt feet
adjustment), position of projection (including lens shift adjustment), etc.,
have been changed.
Save as
* This becomes
selectable once
The geometric correction data of all the connected projectors along with
the order in which the projectors are connected is stored together as the
stacking/tiling stacking/tiling correction data (GCXS file).
correction is
* For tiling correction, the edge blending data (JPG file) is also stored.
completed.
Closes the Multi Screen Tool.
Exit
Options
At this screen, select the projectors to be used for stacking/tiling
correction.
Select the type of network (type of NIC: network interface card) with the topmost
pull-down menu.
Connects to the projectors for which check marks are
entered.
Connect
Updates the list display when there has been an increase or
decrease of the number of network projectors, when there
has been a change in the type of projector, or some other
Update
Communication
Settings
change.
Specifies and searches the IP address of the projector.
The search method can be selected from the following two
types.
Input Address
• Direct input and searching of the projector IP address
• Specification and searching of a range with start address
and end address
Specifies an address and registers on a list the projectors
that have been searched. This also permits post registration
editing and deletion, and additions and searches by address
Edit List
specification.
Mode
Changes the projectors' geometric correction and edge blending settings.
Set whether to use the web camera or not.
The correction accuracy when not using the web camera is
Reference
Camera
settings
worse than when using the web camera but the correction
can be carried out without being affected by the screen
environment such as external light.
Help
This displays the help file of the Multi Screen Tool.
Displays the version of the Multi Screen Tool.
Help
About
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3. Multi Screen Tool Settings
Names of the Calibration Screen
When using the web camera
Calibration Screen
❶
❷
❸
❶
❷
Performs the angle of view check and other camera checks.
Setup
Calibrate
Starts stacking/tiling correction.
When 4-point specification of tiling correction is selected, the 4 corner points of
the projected tile image can be fine-tuned to update the calibration.
❸
Update Calibration
The correction will finish quickly as pictures will not be taken by the camera.
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3. Multi Screen Tool Settings
Setup Screen
❽
❺
❻
❶
❷
❼
❸
❹
❾
Exposure,
gain and
focus
❶
Camera
Settings
Adjust the camera exposure, gain and focus.
Auto-Tune
Adjusts to the optimum picture quality for calibration.
Show
Pattern
Displaying the focus pattern
Display the focus pattern (15 x 15 dot) in the projector.
❷
Tools
Displayed only when [Tiling] → [4-Point Specification] is selected in the main
screen of the Multi Screen Tool.
Reset the point positions of the four corners on the preview screen.
Reset Point
Locations
❸
❹
Preview Screen
Image Borders
Display the images taken by the camera.
→
This is only displayed when "Tiling"
Multi Screen Tool's main screen.
"Specify Four Points" is selected on the
Drag the points at the four corners to set the range. After tiling correction, the
input signal is projected within this range.
Fit Image to Window Size:
The projected photograph is fit to the preview screen's window size.
Display Image with Actual Resolution:
The photograph is displayed with the actual resolution (magnification).
Zoom slider:
Zooms the preview screen in and out.
❺
Fit Image to Window Size/
Display Image with Actual
Resolution/Zoom slider
When zooming on the preview screen, the screen can be scrolled horizontally and
❻
❼
Pan Mode
vertically.
Display the preview window.
The region shown in the preview screen will be displayed in red. Drag the red area
to set up the region to be displayed in the preview screen.
Preview window
❽
❾
? (Help)
Finish
Displays the EasyStack ™ help screen.
Completes the setup.
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3. Multi Screen Tool Settings
When not using the web camera
Calibration Screen
❶
❷
❸
❶
❷
❸
Calibrate
Set up the region where the projected images overlap.
Set up the four corner points of the projected image that will serve as the
corrected result.
Select Image Boundary
Apply Calibration
Reflect the corrected result in the projector.
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3. Multi Screen Tool Settings
Scalable Menu
Scalable Menu
❶
❷
❹
❸
❺
❻
❶
Product Info
UI Scale
Display the version of the calibration software (EasyStack ™ ).
Slider:
Enlarge/reduce the UI scale.
Auto:
❷
Match the UI scale to the window size.
Reset:
Return the UI scale to the initial setting.
❸
❹
❺
Preferences
Reset Error Actions
Exit
Reset the action when an error occurs during correction.
Close the calibration screen and return to Multi Screen Tool.
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4. Preparation of the Projectors
Prepare the projectors to be used for stacking/tiling correction. In addition to the explanations in this manual, also
refer to the projectors' operating instructions.
1. Install and connect the projectors that will be
used, and project them onto the screen (The
portion of projectors that will be used)
Tiling correction only
• Please adjust the projection positions so that the
projected image of each projector overlaps by 15% or
more.
2. Adjust the Projectors
Refer to the projector user's manual and perform the fol-
lowing adjustments.
Adjustments for both stacking and tiling correction
• Adjust so that the projection image of each projector enters the screen.
• Set [ECO MODE] to the same setting for each of the projectors.
• Make image quality adjustments, projection position adjustments, and zoom and focus adjustments as re-
quired.
Adjustments for stacking correction only
• When correcting the stacking to match the projected screen of the master projector using the web camera,
please carry out [CORNERSTONE] for the projector that is going to be the master. When the projected image
of the master projector is distorted, the stacking of the other projectors will also be corrected to match the dis-
torted projection image.
• When [Auto] instead of [Master Projector] is selected in the calibration mode, the [CORNERSTONE] of all the
Reference
projectors will be reset before performing the correction.
• When [Auto] is selected in the calibration mode, correction will be applied on all the projectors. Please specify the
projectors which you do not wish to correct in [Master Projector].
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4. Preparation of the Projectors
• The [CORNERSTONE] screen will not be displayed when making adjustments with the [KEYSTONE] screen, or when
setting [GEOMETRIC CORRECTION]. To perform the [CORNERSTONE] adjustment, hold down the 3D REFORM
button for 2 seconds or longer, and clear the [KEYSTONE] adjustment values.
Note
Likewise, the [KEYSTONE] screen will not be displayed when making adjustments with the [CORNERSTONE]
screen, or when setting [GEOMETRIC CORRECTION]. To perform the [KEYSTONE] adjustment, hold down the 3D
REFORM button for 2 seconds or longer, and clear the [CORNERSTONE] adjustment values.
• When the projector's on-screen menu is used while projecting in multi screen with tiling correction, the edge
blending function is canceled while the on-screen menu is displayed, resulting in bands of different brightnesses
at the overlapping parts of the projected images. (The image returns to as it was before when the on-screen menu
turns off.)
- Similarly, when the input signal is switched and the signal name is displayed, the edge blending function is
→
→
canceled. We recommend using the projector's on-screen menu to set SETUP
to [OFF] beforehand.
MENU
SOURCE DISPLAY
• The edge blending function is optimized for when the presetting is set to "Graphic".
If the presetting differs depending on the input signal, differences in brightness may occur at the parts where the
projected images overlap.
• When using the tiling function with the NP-PA500U/NP-PX750U/NP-PH1000U/NP-PH1400U, pay attention to the
following:
- Only signals with a vertical frequency of 48Hz to 60Hz are supported.
When signals other than the above are input, they are projected with the edge blending function canceled.
(Bands of different brightnesses appear at the overlapping parts of the projected images.)
- The PIP/PBP function and the remote control's sectional zoom function cannot be used.
• When using the NP-PX750 series, unify the color wheel types (6 Segment-White / 6 Segment-Color) included with
the main unit.
• Stacking/tiling correction is performed based on the test patterns, so [LENS MEMORY] cannot be used.
• This cannot be used simultaneously with the edge blending function on the projector's on-screen menu.
Turn off the setting on the on-screen menu before performing stacking/tiling correction.
• Stacking/tiling correction will not be applied on video projected by the STEREO DVI terminal of NP-PH1400U.
• Setting a [PROJECTOR NAME] to a projector in advance will aid in recognition even in the list displayed in the Multi
Screen Tool [Communication Settings], and will be convenient at the time of installation.
Reference
Please see the projector user's manual for information about the [PROJECTOR NAME] setting.
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5. Performing Stacking/Tiling Correction
When using the web camera
Preparations: Connect the web camera
to a computer on which the Multi
Screen Tool and the web camera's utility
software are installed, then connect
the computer to the same LAN as the
To the USB port of the computer
projectors.
1. Start the Multi Screen Tool
2. Select the Projectors
Select [Communication Settings] of the [Op-
❶
tions] menu, then
select the network type,
❷
enter a check mark for the projectors that
will be used, click [Connect], and add to the
list.
* Up to four projectors can be used for stacking/
tiling correction.
❶
❷
3. Select [Use the camera] in Camera
Settings
❸
Select [Camera Settings] in the [Options]
menu, and click [OK] after ❸ selecting [Use
the camera].
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5. Performing Stacking/Tiling Correction
4. Select the [GEOMETRIC CORRECTION]
data storage location
The default setting is [1].
In the projector, GEOMETRIC CORRECTION
Note
data has already been registered in 1 to 3 as the
default setting.
The existing GEOMETRIC CORRECTION data
of the selected number will be overwritten in the
saving location by the Multi Screen Tool.
5. Select the type of calibration mode.
To perform stacking correction, select "Stacking",
then select "Master Projector" or "Auto" for the
calibration mode.
*When performing stacking correction by specifying
the master projector, select the number of the
projector to be the master.
To perform tiling correction, select "Tiling", then
select "Specify Four Points" or "Auto" for the
calibration mode.
6. Click [Next]
The calibration screen will be displayed.
7. Click [Setup] and adjust the camera.
→
* When photographing with [Options] [Continuous
capture mode] checked, the web camera's
continuous image is displayed.
Adjust the position of the camera to fit within the
photographing range of the projector's projected
image, then click [Auto-Tune] to set the image's
quality to the optimal values for calibration.
After making the settings, click [Finish] to return to
the calibration screen.
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5. Performing Stacking/Tiling Correction
8. Click [Calibrate]
Calibration will start.
Four types of test image (illustrated below) will be projected onto the screen in order.
Note
• During the calibration, please pay attention to the following points:
- Do not touch the installation platform of the camera or projector.
- Do not cut across in front of the camera.
- Do not let shadows from outside light fall upon the screen.
• Press the ESC key on the keyboard to cancel calibration.
First: Completely black image
Second: Completely white image
Third: Image of dots (Five dots at screen center)
Fourth: Image of dots (Screen full of dots)
Test images for the number of projectors connected will be sent and projected.
* The web camera photographs the screen on which the test image is projected, and this is used as
the calculation data for stacking/tiling correction.
When an error message is displayed at the time of sending the test image, and calibration cannot be
completed, please see "Calibration" (
There will be a return to the Multi Screen Tool screen upon completion of the calibration.
9. Click [OK]
With this, the stacking/tiling correction will be completed when using the web camera.
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5. Performing Stacking/Tiling Correction
When not using the web camera
Windows XP does not support correction when not using the web camera.
Note
Preparations: Connect the computer with
Multi Screen Tool to the projector using
the video cable, and then connect it to
the same LAN as the projector.
To the image input
terminal of the projector
Set up the computer screen settings in
duplicates to project the same image in
all the projectors.
To the display output terminal
Connecting the various devices
Page 13
Correction cannot be done in the expanded desktop display.
Note
1. Start-up Multi Screen Tool
2. Select the Projectors
Select [Communication Settings] of the [Options]
❶
❷
menu, then
select the network type,
enter
a check mark for the projectors that will be used,
click [Connect], and add to the list.
* Up to four projectors can be used for stacking/
tiling correction.
❶
❷
3. Select [Use the camera] in Camera
Settings
❸
Select [Camera Settings] in the [Options] menu,
and click [OK] after ❸ selecting [Use the camera].
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5. Performing Stacking/Tiling Correction
4. Select the [GEOMETRIC CORRECTION]
data storage location
The default setting is [1].
In the projector, GEOMETRIC CORRECTION
Note
data has already been registered in 1 to 3 as the
default setting.
The existing GEOMETRIC CORRECTION data
of the selected number will be overwritten in the
saving location by the Multi Screen Tool.
5. Select the type of calibration mode.
Select“Stacking”when doing stacking correction
and“Tiling”when doing tiling correction.
When not using the web camera,“Master
Note
Projector”and“Auto”in stacking correction as well
as“4 Point Specify”and“Auto”in tiling correction
cannot be selected.
6. Click [Next]
• When performing stacking correction
The calibration screen will be displayed.
Please proceed to No. 8.
• When performing tiling correction
The layout configuration screen will be displayed
after the numbers are projected in the projector.
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5. Performing Stacking/Tiling Correction
7. Set up the layout (only when performing
tiling correction)
❶
❷ Select the layout depending on the ❶ installation
of the projector, ❸ drag the number icon ❹ onto
the layout region, and match it to the arrangement
projected in the screen. Click [Next] at the end of the
placement.
The layout that can be selected differs depending on
the number of projectors connected.
❷
❸
The figure will not be projected in the projector of
Note
[1].
❹
• Number of connected units is 4: [4 x 1], [1 x 4], [2
Reference
x 2]
• Number of connected units is 3: [3 x 1], [1 x 3]
• Number of connected units is 2: [2 x 1], [1 x 2]
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5. Performing Stacking/Tiling Correction
8. Click [Calibrate]
4 points will be projected on Projector 1 when
[Calibrate] is clicked.
When performing stacking correction
9. Drag each point onto the region where
the projected images overlap
Move the 4 points displayed in the first projector to
the overlapping region of another projector to align
the positions of the units in pairs.
Press the ENTER key at the end of the operation.
The following operations can be carried out using
the various keys of the keyboard.
When performing tiling correction
ENTER key
Proceed to the next step.
ESC key
Suspend the operation.
↑↓←→ keys Move the selected point.The point
will move faster when the shift key
is held down during the operation.
p key
n key
Change the selected points in a
clockwise direction.
Change the selected points in an
anticlockwise direction.
The following message will be projected in this step.
Move the four points into
the white overlap region.
Enter Key - Next Step.
Esc Key - Quit
When specifying the region of the 4 points and
Note
proceeding to the next step by pressing the
ENTER key, the 4 points specified in the previous
step may not display properly sometimes. In
this case, check the LAN cable connection, and
carry out the [Calibrate] operation again after
suspending operation by pressing the ESC key.
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5. Performing Stacking/Tiling Correction
When performing stacking correction
10. Drag the various points onto the region
set up in the previous step
Match the 4 points displayed in the second projector
to the 4 points of the first projector specified earlier.
Press the ENTER key at the end of the operation.
The following operations can be carried out using
the various keys of the keyboard.
ENTER key
Backspace key
ESC key
Proceed to the next step.
Return to the previous step.
Suspend the operation.
When performing tiling correction
↑↓←→ keys Move the selected point.
The point will move faster when the
shift key is held down during the
operation.
p key
n key
Change the selected points in a
clockwise direction.
Change the selected points in an
anticlockwise direction.
The following message will be projected in this step.
Center each point on its corresponding point in
the other projector.
Enter Key - Next Step.
Backspace Key - Previous Step
Esc Key - Quit
When specifying the region of the 4 points and
Note
proceeding to the next step by pressing the
ENTER key, the 4 points specified in the previous
step may not display properly sometimes. In
this case, check the LAN cable connection, and
carry out the [Calibrate] operation again after
suspending operation by pressing the ESC key.
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5. Performing Stacking/Tiling Correction
11. Adjust the various points so that the test
images overlap each other
Good example
Adjust the 4 points placed in the previous step and
check the degree of overlap between the 2 projectors.
Press the ENTER key at the end of the operation.
When there are 3 or more projectors connected,
return to Step 9 to adjust the remaining projectors.
Return to the main screen at the end of all the
adjustments.
• The degree of overlap of the test images will
Reference
be reflected in the projected screen as the
correction result.
Please check and adjust the degree of overlap
between the test images even if the markings of
the 4 points are not consistent.
Bad example
The following operations can be carried out using the
various keys of the keyboard.
ENTER key
Backspace key
ESC key
Proceed to the next step.
Return to the previous step.
Suspend the operation.
↑↓←→ keys The selected point can be fine-
tuned.
p key
n key
Change the selected points in a
clockwise direction.
Change the selected points in an
anticlockwise direction.
The following message will be projected in this step.
Adjust the alignment if desired.
Enter Key - Next Step.
Backspace Key - Previous Step
Esc Key - Quit
• When the ↑ ↓ ← → keys are pressed and held down for a while, operations may be disabled for a
while.
Note
• When specifying the region of the 4 points and proceeding to the next step by pressing the ENTER
key, the 4 points specified in the previous step may not display properly sometimes. In this case, check
the LAN cable connection, and carry out the [Calibrate] operation again after suspending operation by
pressing the ESC key.
• When 4 projector units are connected the test image will be projected in projectors that are not the
Reference
target of the operation as well.
Please hide the projected images of the projectors that are not being adjusted when adjustment is
difficult.
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5. Performing Stacking/Tiling Correction
12. Click [Select Image Boundary] to set up the
4 corner points of the projected image that
will serve as the correction result
The test image will be displayed in all the connected
projectors.
Set up the 4 corners of the projected image in the
order starting from top left to top right to lower left to
lower right.
Return to the main screen at the end of all the settings.
The following operations can be carried out using the
various keys of the keyboard.
ENTER key
Backspace key
ESC key
Change the 4 selected corners as
follows.
Return the 4 selected corners to the
previous locations.
Suspend the operation.
↑↓←→ keys The 4 selected corners can be fine-
tuned.
The following message will be projected in this step.
(when top right is selected)
Select the top-right corner of the final image.
Enter Key - Next Step
Backspace Key - Previous Step
Esc Key - Quit
• When the ↑ ↓ ← → keys are pressed and held
Note
down for a while operations may be disabled for
a while.
13. Click [Apply Calibration]
The corrected result will be reflected in the projected
image.
Return to the Multi Screen Tool screen at the end of
the calibration.
14. Click [OK]
With this, the stacking/tiling correction will be completed when not using the web camera.
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5. Performing Stacking/Tiling Correction
• When using the web camera, the computer and web camera used for the correction can be removed after the
correction.
Note
• When GEOMETRIC CORRECTION is set, KEYSTONE and CORNERSTONE cannot be selected.
• Hold down the 3D REFORM button for 2 seconds or longer to clear the GEOMETRIC CORRECTION data that has
been set.
• GEOMETRIC CORRECTION performs an electrical correction and as such there may be a resultant drop in
brightness or deterioration of picture quality.
• Exceeding the limits of the correction or other factors may result in distortion of the picture or correction not being
applied at all.
• After correction, fine adjustment is permitted with lens shift or lens zoom focusing.
• The images on the screen may slip out of position due to changes in conditions after installation, etc.
Perform stacking/tiling correction periodically to maintain precision.
Reference
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6. Calibration
When using the web camera
In calibration, differences in brightness on the screen are identified and calculations are performed.
Also, for the purpose of the calculations, the contour of the projection image, and the position and shape of the test
image are photographed with a web camera.
When not using the web camera
During calibration, calculations are carried out on the“overlapping region between the projected images”and“the 4
corner points of the projected image serving as the correction result”that are set up in the screen operations.
• When not using the web camera, calculations are carried out based on the 4 points that have been set up during
Reference
adjustment. The correction accuracy is therefore worse than when using the web camera.
If an error message is displayed during the calibration, first check the items listed below.
Item to Check
Cause and Action to Take
Has the resolution of each of the It is not possible to use projectors with different resolutions
projectors been adjusted?
simultaneously. Use projectors with the same resolution.
Whenever possible, use the same models of projectors for stacking/tiling
correction. If there are differences in brightness between the projectors,
it may not be possible to identify the contours, position or shape of the
test image with certain projected images.
Has the brightness of each of the
projectors been adjusted?
In addition, differences in brightness can also be due to differences in
the projectors' [ECO MODE] settings, so set [ECO MODE] to the same
setting on all of the projectors. For the [ECO MODE] setting, see the
projectors' operating instructions.
Is the web camera compatible with the
Please use a model that is supported by the Multi Screen Tool as listed
?
Multi Screen Tool
Make adjustments so that the overall projection image can be
photographed as large as possible; for example, move the setup
position of the web camera.
Is the entire screen gathered within the
photographic range of the web camera?
If calibration is not possible with the [Auto Adjust] command at [Setup]
Are the brightness and contrast of the
images photographed with the web
camera suitable values?
→
[Camera Settings] on the calibration screen, use the utility software
included with the web camera to adjust the brightness and contrast,
then try calibrating again.
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6. Calibration
After checking the items on the previous pages, if an error still occurs during calibration, it is possible that the quality
of the image photographed by the web camera is insufficient and cannot be recognized.
Please pay attention to the points described below and make adjustments of the photographic image using the
camera setup screen or the utility of the web camera, then try the calibration.
• Set up and adjust the camera so that the background of the screen (e.g., walls, etc.) does not enter the photographic range of
the camera.
When there is a difference in brightness between the screen and the background, an error may occur during calibration.
Camera Adjustment Examples
[Camera Preview Screen]
Aim at the right image and adjust the camera so that the difference in
brightness between the test image and the screen becomes distinct.
Completion of calibration may not be possible in situations such as the following.
Extraneous Light Enters the
Photographic Range
The Contour of the Projected Image Falls
Outside of the Photographic Range
Photographic Screen is too Bright
Adjust the gain and the exposure.
Adjust the installation position so
that extraneous light does not enter
the photographic range.
Adjust the installation position of
the camera so that the contour of
the projection image fits into the
photographic range.
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7. List of Error Messages
When an error occurs during the calibration and a message is displayed, please refer to the table below and respond
as indicated.
Reference
• Error messages extract a portion of the display content.
• Rarely, an error message that is not listed in this manual may be displayed.
If this happens, check the photographic image of the camera or the adjustment and position of the camera
according to the error message.
Error Message
Cause of Error
Response to Error
The projection image does not • Make adjustments so that the overall projection
fall within the photographic
range of the camera.
image can be photographed as large as possible; for
example, move the setup position of the web camera.
Please move the camera.
Projector is not entirely in view.
• Check the photographic image of the camera, adjust
the gain and other settings, and check the difference
in brightness between the test pattern and the
background. Also, darken the peripheral illumination as
much as possible.
The brightness at the periphery
is low, and the test pattern
cannot be detected.
•
If calibration is conducted on the web camera's utility
software with the preview screen launched, the test
pattern's projected image cannot be photographed at
[Calibration Screen] in the Multi Screen Tool.
Close the utility software's preview screen then
perform calibration again.
No camera was detected. Please
check to make sure the camera is
plugged in and powered on.
The camera cannot be
recognized.
•
Check the computer's recommended environment on
• Check the photographic image of the camera, adjust
the gain and other settings, and check the difference
in brightness between the test pattern and the
background. Also, darken the peripheral illumination as
much as possible.
Too many spots were detected.
and
The correction points cannot be
properly detected from the test
pattern.
Too few spots were detected.
• Check whether the screen has become too bright from
outside light striking it.
• Check the photographic image of the camera, adjust
the gain and other settings, and check the difference
in brightness between the test pattern and the
background. Also, darken the peripheral illumination as
much as possible.
The region found seems to use a
very small using roughly xx by yy
pixels in the camera.
An appropriate photographic
range cannot be detected.
• Check the photographic image of the camera, adjust
the gain and other settings, and check the difference
in brightness between the test pattern and the
background. Also, darken the peripheral illumination as
much as possible.
Found Maximum Colors of (rrr, There is insufficient brightness
ggg, bbb) with a highest possible and the test pattern cannot be
value of 255.
detected.
T h e r e i s a n e r r o r i n
c o m mu n i c a t i o n w i t h t h e
projector.
Error displaying image on projector
: (IP address)
• Check the condition and connections of the projector,
and perform the calibration again.
• Check the photographic image of the camera, and
adjust the camera or move the camera position so that
the entire test pattern can be read. Also, darken the
peripheral illumination as much as possible.
The correction points cannot be
properly detected from the test
pattern.
Unable to find a grid from the
spots.
• Check whether the screen has become too bright from
outside light striking it.
Insufficient Camera Contrast.
The contrast is insufficient.
•
•
Check the camera's connection.
Check the computer's recommended environment on
Disconnect the USB cable of the camera and then
reconnect.
The camera did not succeed in
taking a picture. The camera may
no longer be powered, the USB
cable may be unplugged, or the
camera may be in use by another
program.
The connection with the
camera is unstable.
•
•
Reset the zoom adjustment on the web camera's
utility software.
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Trademarks
• Microsoft, Windows, Windows Vista, .NET Framework, and DirectX are either registered trademarks or trademarks
of Microsoft Corporation in the United States and other countries.
• Powered by Scalable Display Technologies
Protected by US Patent 6,456,339 and patents pending
• Logitech is a registered trademark of Logitech Inc.
• HDMI is a registered trademark or trademark of HDMI Licensing, LLC.
© NEC Display Solutions, Ltd. 2011-2013
Ver.5 08/13
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