Sensor dark pixel offset estimation

摘要: Examples of systems and methods to provide estimates dark current for pixels a photosensor as function the temperature sensor gain applied are described. In various implementations, estimated each pixel can depend at least partly on global scale factor bias that temperature-independent gain-independent offset value pixel. The scale, bias, offsets may be determined from multiple field images taken by over range operating temperatures. some cases, using subset less than all image pixels. Scale derived particular used in calibration different sensors.