Patent ID: 6593961
Filing Date: 2003-07-15
Classification: G06T,H04N

Abstract:
An optical sensor testing system for classifying an image quality of an image generated by an optical sensor under test, comprising:a sensor tester which causes a sensor pixel image to be generated by said sensor under test, said sensor pixel image comprising a plurality of pixels, each of said plurality of pixels represented by an associated quantized intensity level, said quantized intensity level being within one of a first pixel class representing a first range of intensity levels, a second pixel class representing a second range of intensity levels above or below said first range of intensity levels, or a third pixel class representing a third range of intensity levels, said third range of intensity levels above said second range of intensity levels if said second range of intensity levels is above said first range of intensity levels, and said third range of intensity levels below said second range of intensity levels if said second range of intensity levels is below said first range of intensity levels; and an image filter which processes said sensor pixel image to generate a defective pixel map, said image filter generating an entry in said defective pixel map for each pixel having a quantized level in said second pixel class and each pixel having a quantized level in said third pixel class but generating no entry in said defective pixel map for any pixel In said first pixel class.