CCD cameras embed functions

摘要

Thanks to advances in the complexity of FPGAs and FPOAs, a number of parallel data-intensive image-processing functions can now be embedded in solid-state cameras. Two functions—flat-field and defective-pixel correction (DPC)—correct for any variation of pixel values across the CCD or CMOS array. By using a known test target of uniform brightness, any variation can be estimated and a pixel map of the sensor used to both flatten the field and compensate for any nonuniform pixels.