User`s manual

Genie Color Series-GigE Vision Camera Operational Reference  39
Partial Scan—Window ROI
Partial Scan (vertical cropping)
The Partial Scan mode, also know as vertical cropping, reduces the number of video lines grabbed for a frame. By
not scanning the full vertical area of the sensor, the maximum possible acquisition frame rate is proportionately
increased (as an extreme example, the C1024 scanning a two line frame, exposed around 146 fps). A table of frame
rates vs. sample vertical cropping values follows.
Scan Start Offset
Scan Line Count
Partial Image Scan
Vertical Partial Scan Illustration
Increased Maximum Frame Rate Examples with Vertical Cropping
Vertical
Lines
Acquired
C640
Maximum
Frame Rate
C1024
Maximum
Frame Rate
C1280
Maximum
Frame Rate
C1400
Maximum
Frame Rate
C1410
Maximum
Frame Rate
C1600
Maximum
Frame Rate
1200 -- -- -- -- 15.1 fps
1024 -- -- 15 fps 21.7 fps 17.4 fps
960 -- -- 22 fps 17 fps 21.0 fps 17.9 fps
768 -- 20 fps 28 fps 20 fps 28.2 fps 22.1 fps
512 -- 28 fps 40 fps 27 fps 39.9 fps 30.2 fps
480 64 fps 30 fps 42 fps 28 fps 42.0 fps 31.7 fps
240 115 fps 50 fps 68 fps 42 fps 71.3 fps 49.7 fps
120 194 fps 74 fps 98 fps 55 fps 109.5 fps 69.4 fps
60 293 fps 99 fps 125 fps 66 fps 149.3 fps 86.5 fps
30 394 fps 118 fps 144 fps 73 fps 182.6 fps 98.7 fps
2 589 fps 146 fps 169 fps 81 fps 232.7 fps 113.7 fps