Patent ID: 6141451
Filing Date: 2000-10-31
Classification: G06T

Abstract:
An image coding method for performing predictive coding for a first image in a coding object image plane by using motion information about a motion of said first image from a certain position in a reference image plane, comprising:a first step of detecting first displacement information including a first displacement quantity from a second image in said reference image plane corresponding to said first image in said coding object image plane to said first image;a second step of selecting either said first displacement information or predetermined second displacement information; anda third step of performing said predictive coding by using, as said motion information, said first or second displacement information selected at said second step, whereinsaid second displacement information includes a predetermined second displacement quantity, andsaid first step includes a fourth step of detecting an evaluation value indicative of a degree of similarity of each image in said reference image plane to said first image, andsaid second step includes a fifth step of comparing said evaluation value with a predetermined threshold, and a sixth step of performing said selection in response to a result of said comparison.