SPATIAL ERROR CONCEALMENT BASED ON MOJETTE TRANSFORM  

作　　者：Ji Wenping Shen Lansun 

机构地区：[1]Signal ＆ Information Processing Laboratory, Beijing University of Technology, Beijing 100022, China

出　　处：《Journal of Electronics(China)》2007年第3期417-420,共4页电子科学学刊（英文版）

基　　金：the National Natural Science Foundation of China (No.60472036, 60402036);the Natural Science Foundation of Beijing (No.4042008);the Ph.D. Foundation of Ministry of Education (No.20040005015).

摘　　要：This letter presents a novel spatial error concealment algorithm for the H.264 video coding. The error concealment algorithm is based on directional interpolation. Mojette transform is used to estimate the orientation features of the damaged blocks,and the image is interpolated in the appro-priate directions. The proposed method is compared with bilinear interpolation algorithm in the ref-erence implementation of H.264 and all directional interpolation. Experimental results prove that the proposed algorithm has better subjective and objective image reconstruction quality.This letter presents a novel spatial error concealment algorithm for the H.264 video coding. The error concealment algorithm is based on directional interpolation. Mojette transform is used to estimate the orientation features of the damaged blocks, and the image is interpolated in the appropriate directions. The proposed method is compared with bilinear interpolation algorithm in the reference implementation of H.264 and all directional interpolation. Experimental results prove that the proposed algorithm has better subjective and objective image reconstruction quality.

关 键 词：H.264 Error concealment Mojette transform Video communication 

分 类 号：TN911.73[电子电信—通信与信息系统]