Camera Active Area Properties
The Camera Active Area is a rectangular array of pixels containing active video that are delivered by the camera to the frame grabber.
Note: For line-scan cameras, the height of the active area is 1 (or 2 for bilinear line-scan).
Hactive_Px Parameter
For all cameras, the MultiCam parameter Hactive_Px represents the number of pixels in each line of the Camera Active Area.
The following rules apply:
Rule #1: The width of the Camera Active Area may contain at most 65535 pixels
Rule #2: Each tap delivers the same amount of pixels every line, Hactive_Px must be a multiple of XTaps
| ● | N is an integer number since each tap delivers the same amount of pixels every line: |
| ● | XTaps is the number of taps along the X direction. |
Note: XTaps can be obtained from the value of TapGeometry by multiplying together the two numbers surrounding the letter "X". For example, 1X2, 1X2_1Y, 1X2_1Y2, 2X, 2X_1Y have all 2 taps along the X direction.
Rule #3: Each XRegion must contain at least MinBytesPerRegionLinebytes
| ● | MinBytesPerRegionLine = 48 |
Note: XRegions is the number of geometrical regions in the X direction. This is the number preceding the letter "X"in the TapGeometry value: For example: 2X, 2X_1Y, 2X2 have all 2 regions along the X direction.
| ● | BytesPerPixel is the amount of bytes required to store one pixel into the on-board memory: |
| □ | 1 byte for 8-bit monochrome and Bayer CFA cameras |
| □ | 2 bytes for 10-/12-/14- and 16-bit monochrome and Bayer CFA cameras |
| □ | 3 bytes for 24-bit RGB cameras |
| □ | 6 bytes for 30-bit and 36-bit RGB cameras |
|
TapConfiguration |
TapGeometry |
Min. value |
Multiple of |
Max. value |
|---|---|---|---|---|
|
BASE_1T8 |
1X |
48 |
1 |
65535 |
|
BASE_1T10 |
1X |
24 |
1 |
65535 |
|
BASE_1T24 |
1X |
16 |
1 |
65535 |
|
MEDIUM_1T30 |
1X |
8 |
1 |
65535 |
|
BASE_2T8 |
1X2 |
48 |
2 |
65534 |
|
BASE_2T10 |
1X2 |
24 |
2 |
65534 |
|
MEDIUM_2T24 |
1X2 |
16 |
2 |
65534 |
|
BASE_2T8 |
2X |
96 |
2 |
65534 |
|
BASE_2T10 |
2X |
48 |
2 |
65534 |
|
MEDIUM_2T24 |
2X |
32 |
2 |
65534 |
|
BASE_3T8 |
1X3 |
48 |
3 |
65535 |
|
MEDIUM_3T10 |
1X3 |
24 |
3 |
65535 |
|
BASE_3T8 |
3X |
144 |
3 |
65535 |
|
MEDIUM_3T10 |
3X |
72 |
3 |
65535 |
|
MEDIUM_4T8 |
1X4 |
48 |
4 |
65532 |
|
MEDIUM_4T10 |
1X4 |
24 |
4 |
65532 |
|
MEDIUM_4T8 |
4X |
192 |
4 |
65532 |
|
MEDIUM_4T10 |
4X |
96 |
4 |
65532 |
|
FULL_8T8 |
1X8 |
48 |
8 |
65528 |
|
FULL_8T8 |
8X |
384 |
8 |
65528 |
|
DECA_10T8 |
1X10 |
50 |
10 |
65530 |
|
DECA_10T8 |
10X |
480 |
10 |
65530 |
Vactive_Ln Parameter
For area-scan cameras only, the MultiCam parameter Vactive_Ln represents the number of lines of the Camera Active Area.
The following rules apply:
Rule #1: The camera active window may contain at most 65535 lines.
Rule #2: Each tap delivers exactly the same amount of pixels, Vactive_Ln must be a multiple of YTaps.
| ● | N is an integer number |
| ● | YTaps is the number of taps along the Y direction. YTaps can be obtained from the value of TapGeometry by multiplying together the two numbers surrounding the letter "Y". For example: 1X_1Y2, 1X_2YE have all 2 taps along the Y direction. |