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Impact of the ROI on the acquisition frame rate
Due to the sensor communication protocol, the acquisition frame rate can only be increase when the
number of active lines is reduced. The number of columns does not affect the acquisition speed. The
cropping granularity is 16 lines and 8 columns.
When a single ROI is defined, the number of active lines corresponds to the ROI height. When multiple
ROIs are defined, the number of active lines is the sum of all ROIs height.
Table 35 – Frame rates as a function of the number of lines
IMX425
IM426
Quantization
Lines
8 bits
12 bits
8 bits
12 bits
16
3997
3457
7366
5150
32
3721
3169
6725
4608
64
3270
2716
5729
3806
128
2632
2113
4419
2824
256
1893
1462
3033
1862
512
1212
905
1863
1108
624
1047
776
1594
941
1104
662
481
NA
NA
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