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
