Method and apparatus for detecting defective pixels in accordance with readout method

摘要

A signal detection circuit (211) and a controller (212) receive signals from an imaging device (205), determine pixels having signal levels that exceed a predetermined defect determination level as defective pixels, and store the addresses of the defective pixels corresponding to read methods. When the imaging device (205) images an object, a defect compensation circuit (208) reads the addresses of the defective pixels that have been stored corresponding to the read methods and performs a predetermined compensation process for the defective pixels. The controller (212) stores the signal levels of the defective pixels and converts the signal levels corresponding to the read methods. As a result, when defective pixels are detected in one read method, the defective pixels can be compensated in a plurality of read methods.