US Patent 10229481 Automatic defective digital motion picture pixel detection

A computer-implemented method for automatically identifying defective pixels captured by a motion picture camera within a sequence of frames is disclosed. The method comprises applying a spatio-temporal metric for each pixel in each frame wherein the spatio-temporal metric weights the spatial severity of error in the pixel by a degree of motion at the pixel to produce a weighted spatio-temporal metric value. The weighted spatio-temporal metric values for each pixel are compared to a threshold to automatically identify defective pixels within the sequence of frames.