Title :
Enhanced H.263 to H.264/AVG Video Transcoding with Adaptive Intra-mode Decision
Author :
Ye, Tianxiao ; Tan, Yap-Peng ; Xue, Ping
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ.
Abstract :
An enhancement of the H.264/AVC transcoding is proposed in this paper. The drift problem in the transcoder is addressed by including spatial intra prediction in image reconstruction. A two-step adaptive intra-mode decision algorithm based on angle information and SATD ranking is introduced to reduce the complexity. Experiment results show that the proposed enhancement significantly increases the speed of intra mode-decision while maintaining a similar PSNR and a slight increase of rate
Keywords :
code standards; decision theory; image enhancement; image reconstruction; video coding; H.263 enhancement; H.264-AVC video transcoding; SATD ranking; adaptive intramode decision algorithm; image reconstruction; spatial intraprediction; Automatic voltage control; Bit rate; Computer architecture; Decoding; Image reconstruction; PSNR; Performance gain; Transcoding; Video coding; Video compression; H.263; H.264; SATD; intra-mode; transcoding;
Conference_Titel :
Information, Communications and Signal Processing, 2005 Fifth International Conference on
Conference_Location :
Bangkok
Print_ISBN :
0-7803-9283-3
DOI :
10.1109/ICICS.2005.1689230
