PREDICTION MODE SELECTION METHOD, AN APPARATUS THEREFOR TO REDUCE THE NUMBER OF PREDICTION MODE CANDIDATES ON THE BASIS OF THE DIRECTIVITY OF A PRINCIPAL EDGE, A MOVING PICTURE COMPRESSION METHOD USING THE METHOD, A MOVING PICTURE ENCODER INCLUDING THE APPARATUS, AND A COMPUTER RECORDING MEDIUM RECORDING A PROGRAM FOR EXECUTING THE METHOD

摘要

Purpose: a prediction mode selection method thus, one device, a movie compression method of application method, an encoder film device, a computer recording medium including device, and a plan of the record for executing method is arranged to simplify the structure of movie compression coding and reduce by a compression time to reduce the quantity of prediction mode candidate on the basis of the directionality at a main edge and quite reduce operating quantity. Construction: an edge detecting unit (31) obtains a size and one direction of a pixel-classified advertisement edge in a current macro. One value in the direction at histogram calculation unit (33) quantizing pixel-classified advertisement edge calculates the edge direction histogram of each pattern classification relative to pixel-classified advertisement edge size. One prediction mode selector (35) selects one or more prediction modes on the basis of a size of the histogram of calculating.