First Light C-BLUE One, User Manual

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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