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7.15 Category: LUTControl
Features in this chapter describe the Look-up table (LUT) realated features. For LUT re-
lateted features, certain values are stored in the camera. This includes the coordinates of
defective pixels so that they can be corrected.
General information (Pixel Correction)
There is a certain probability of abnormal pixels – so-called defect pixels – occurring
within sensors from all manufacturers. The charge quantity of these pixels is not linearly
dependent on the exposure time.
The occurrence of these defect pixels is unavoidable and intrinsic to the manufacturing
and aging process of the sensors.
The operation of the camera is not affected by these pixels. They only appear as brighter
(warm pixel) or darker (cold pixel) spots on the recorded image.
Distinction of "hot" and "cold" pixels within the recorded image.
Warm Pixel
Cold Pixel
Charge quantity of "hot" and "cold" pixels compared with "normal" pixels:
Charge quantity
„Normal Pixel“
Charge quantity
„Cold Pixel“
Charge quantity
„Warm Pixel“
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