Title: Global decision method for video frequency coding
Application Number: 98117796 Application Date: 1998.09.18
Publication Number: 1212578 Publication Date: 1999.03.31
Approval Pub. Date: Granted Pub. Date: 2001.06.13
International Classifi-cation: H04N7/32
Applicant(s) Name: Qinghua Univ. Address: 100084
Inventor(s) Name: Zhu Xuelong
Attorney & Agent: liao yuanqiu
Abstract:
     The present invention belongs to the field of motion image coding technology. Said invention includes four portions of motion estimation, frame prediction and prediction error generation, transformation and quantification, image reconstruction and entropy coding. It is characterized by that in the motion estimation portion, the overall decision device for determining result per stage in the course of matching hierarchical search block is set up to judge that whether the current frame image reconstruction error exceeds the reconstruction error of the last frame image or not. The described overall decision device adopts reconstruction error decision standard, and its adoption can greatly raise coding speed.
Time: 10
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