Video compression by extracting pixel changes exceeding thresholds

摘要

A video processing system employs a microcomputer 11 which functions to effecting real-time on-screen functions on original video images for storage on an optical disc 28. The system employs an adaptive program which extracts visual image data from a digitizer 15 and compresses this data for the real-time processing to create dynamically an optimal sub-set of pixels of the original image.