RMV-71 Operations
Copyright illunis LLC, 5/19/2014
Page 54
5.4: Image Processing
Black Offset and Flat Field Correction
The CHR70M sensor used in the RMV-71 requires image processing for optimal
operation. The sensor incorporates a dark field offset correction on chip. The offset
correction will correct the 16 column analog offsets through digital to analog convert-
ers. The sensor also requires a digital gain for each of the 10,000 columns. The col-
umn gain corrects non uniformity of the sensor analog paths. The following images
show the effects of offset and gain correction:
Image with (left) and without (right) column gain correction
Image with (left) and without (right) 16 column offset correction
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