Camera Operation
Falcon 4 Camera User's Manual
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Flat Field Correction and Defective Pixel Detection
Overview
The Flat Field correction function consists of using two coefficients per pixel which correct the gain
and offset of the corresponding pixel. These corrections compensate for the Photo-response Non-
uniformity (PRNU) and Fixed Pattern noise (FPN) attributes unique to each camera sensor. In
addition, the camera supports replacement of defective pixels (hot, dead, blinking) with a value
based on neighborhood pixels.
The Flat Field correction features are grouped in the Advanced Processing category:
Correction Function Block Diagram
The following simplified block diagram shows the processing chain that is applied to the image data
(the flat field and defective pixel blocks are highlighted). Note that each processing block can be
activated and deactivated independently. For example, the FPN and PRNU coefficients can be
applied independently or together using the flatfieldCorrectionMode.
Figure 16 Flat field and defective pixel processing
Preliminary
