Motion detection

摘要

An imaging system that employs sub-framing of sampled image frames (40-42) to improve accuracy of motion detection, sub-frames a pair of image frames (40-42) sampled from an image scene (14) by calculating a correlation metric for each of a set of possible spacial relationships between the image frames (40-42) using the pixel data values from areas of the image frames (40-42) that contain overlapping content. This sub-framing enhances the accuracy of motion detection by eliminating areas of the image frames (40-42) not having overlapping image content. <IMAGE>