TR7500_Series_Software_v29_En.pdf - 第328页
Test Research Inc. 306 TR7500 Series User Guid e –Softwa re v.2.9.0 Figure 500 : Camera Align ment Dialog 5. Move the X-Y table to po sition the camera abo ve the gray card. Or press [M oveTo] button. 6. Select the [Gray…
Test Research Inc.
TR7500 Series User Guide –Software v.2.9.0 305
A
PPENDIX
1
L
IGHTING
C
OMPENSATION
1. Lighting Compensation
This function uses software to perform lighting compensation for every camera. The standard
is that when the lighting range is established as 60mA and the intensity is 128 at all adjusted
zones, the gray level of the gray card image is compensated to 100.
1. Press [S
TART
>
R
UN
]. Key in “regedit” to open the registry. Enter
“HKEY_LOCAL_MACHINE\HKEY_LOCAL_MACHINE\SOFTWARE\TRI\” and check if
there is a DWORD variable named “LightingCompensation”. If the variable does not exist,
open the main program of TR7500 and the variable is created automatically.
2. To execute lighting compensation, change the value of the variable to “1”.
3. The first time the lighting is executed, the system creates the following four parameters:
[Central/Gray] – the objective gray level for the four side-view cameras -- and
[CentralGrayRGB0], [CentralGrayRGB1], and [CentralGrayRGB2] -- the objective gray
level for R, G, B sensors.
Figure 499: Lighting Compensation Parameters
4. Open the TR7500 main program of and enter [U
TILITIES
>
C
AMERA
A
LIGNMENT
].
Test Research Inc.
306 TR7500 Series User Guide –Software v.2.9.0
Figure 500: Camera Alignment Dialog
5. Move the X-Y table to position the camera above the gray card. Or press [MoveTo]
button.
6. Select the [GrayLevel] to show the gray level of the current image.
7. Click on the [Lighting Balance] button and input the password “7100” to do lighting
compensation. (Note: Be sure that the FOVs of 5 cameras are on the gray card.)
2. Lighting Decay Auto Check
This function uses software to test the difference between the current value (before
compensating) and the objective value for all five cameras.
1. Open the main program of TR7500 and enter [U
TILITIES
>
C
AMERA
A
LIGNMENT
].
2. Move the X-Y table to let the camera above the center of gray card.
3. Press [Light-Decay Check].
4. For the first time, the system displays the window below to ask if you want to save the
position of the gray card to system. The value of the X-coordinate and Y-coordinate are
saved in the registry and named “GrayCardPosX” and “GrayCardPosY”. When the two
variables exist, the window below does not appear again. To change the value, move the
cameras to be on the gray card then click on the [Teach Position] button.
Test Research Inc.
TR7500 Series User Guide –Software v.2.9.0 307
Figure 501: Confirm Save Gray Card Position
5. After clicking on the [Light-Decay Check] button, the system will display the following
window. It displays the current decay of the gray level for all five cameras. Select if you
want to do lighting compensation later according to the light decay value.
Figure 502: Confirm Perform Lighting Compensation 1
6. If the decay is over 10% for any camera, the dialog in step 5 above will be changed to the
following window to remind you that the decay of lighting is too serious.
Figure 503: Confirm Perform Lighting Compensation 2
7. If [Auto Check] is selected, the system checks the lighting decay automatically when the
program is opened.
System will test if there is any problem with the gray card (uneven or
interference). If not, continue executing; or the following dialog appears and asks
whether you still want to do lighting compensation.