Patent ID: 6031573
Filing Date: 2000-02-29
Classification: G06F,G08B,H04N

Abstract:
A method of processing fields of video data, comprising the steps of:dividing each of said fields of video data into a plurality of rectangular data blocks, each said data block consisting of an n.times.m array of picture elements, where n and m are positive integers greater than 1;comparing each said data block with a corresponding data block in a preceding field to generate comparison data;performing a data compression algorithm with respect to said data blocks on the basis of said comparison data, said data compression algorithm including selecting for storage, on the basis of said comparison data, ones of said data blocks, applying an orthogonal transform to said selected data blocks to produce coefficient data, and quantizing said coefficient data; andperforming a moving image content analysis algorithm with respect to said data blocks on the basis of said comparison data.