Title :
Layered video coding based on displaced frame difference prediction and multiresolution block matching
Author :
Hwang, Wen-Jyi ; Chen, Jing-Fung ; Huang, Yu-Chun ; Tsai, Tung-Yuan
Author_Institution :
Graduate Inst. of Comput. Sci. & Inf. Eng., Nat. Taiwan Normal Univ., Taipei, Taiwan
Abstract :
This paper presents a new video-coding technique based on displaced frame difference (DFD) prediction and multiresolution block matching for layered transmission. Starting from the base layer, the algorithm encodes one layer at a time until the design of the top layer is completed. For the encoding of each layer, the DFD prediction and multistage motion-vector quantization (MSMVQ) techniques are employed so that the results of DFD encoding and block matching at previous layers can be used to enhance the coding efficiency at that layer. Numerical results show that the algorithm is effective for the applications where high rate-distortion performance and low computational complexity for layered video transmission are required.
Keywords :
computational complexity; image matching; image motion analysis; image resolution; prediction theory; rate distortion theory; vector quantisation; video coding; computational complexity; displaced frame difference prediction; layered video coding technique; multiresolution block matching; multistage motion-vector quantization techniques; rate distortion; scalable coding; Application software; Asynchronous transfer mode; Computational complexity; Design for disassembly; Encoding; Image reconstruction; Signal processing algorithms; Streaming media; Video coding; Video sequences; Block matching; scalable coding; video coding;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2004.833123