Technical Program

Paper Detail

Session:Video Coding
Time:Tuesday, May 18, 13:00 - 15:00
Presentation: Poster
Topic: Image and Multidimensional Signal Processing: Image and Video Coding
Authors: Dajun Wu; Institute for Infocomm Research 
 Si Wu; Institute for Infocomm Research 
 Keng Pang Lim; Institute for Infocomm Research 
 Feng Pan; Institute for Infocomm Research 
 Zhengguo Li; Institute for Infocomm Research 
 Xiao Lin; Institute for Infocomm Research 
Abstract: This paper presents a fast block INTER mode decision algorithm to significantly improve the time efficiency of the encoder in H.264. It makes use of the spatial homogeneity of video object's textures and temporal stationarity characteristics inherent in video sequences. Specifically, homogeneity decision of a block is based on edge information, and MB differencing is used to judge whether the MB is time-stationary. Based on the above analysis, only parts of inter prediction modes are chosen for RDO calculation. The experiment results show that the new scheme is able to achieve a reduction of 30% encoding time on average, with a negligible average PSNR loss of only 0.03 dB and a mere 0.6% bit rate increase compared with the original H.264 reference software.

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