Partial Scan-Window Roi; Increased Maximum Frame Rate Examples With Vertical Cropping - Dalsa Genie Color C640 User Manual

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.

Increased Maximum Frame Rate Examples with Vertical Cropping

Vertical C640
Lines Maximum
Frame Rate
Acquired
1200
1024
960
768
512
480 64 fps
240 115 fps
120 194 fps
60 293 fps
30 394 fps
2 589 fps
Genie Color Series-GigE Vision Camera
Vertical Partial Scan Illustration
C1024
Maximum
Frame Rate
-- --
-- --
-- --
-- 20 fps
-- 28 fps
30 fps
50 fps
74 fps
99 fps
118 fps
146 fps
C1280 C1400
Maximum Maximum
Frame Rate Frame Rate
--
15 fps
22 fps 17 fps
28 fps 20 fps
40 fps 27 fps
42 fps 28 fps
68 fps 42 fps
98 fps 55 fps
125 fps 66 fps
144 fps 73 fps
169 fps 81 fps
Scan Start Offset
Partial Image Scan
Scan Line Count
C1410 C1600
Maximum Maximum
Frame Rate Frame Rate
-- 15.1 fps
21.7 fps 17.4 fps
21.0 fps 17.9 fps
28.2 fps 22.1 fps
39.9 fps 30.2 fps
42.0 fps 31.7 fps
71.3 fps 49.7 fps
109.5 fps 69.4 fps
149.3 fps 86.5 fps
182.6 fps 98.7 fps
232.7 fps 113.7 fps
Operational Reference  39