Title :
Improvements to TZ search motion estimation algorithm for multiview video coding
Author :
Purnachand, N. ; Alves, Luis Nero ; Navarro, Antonio
Author_Institution :
Institudo de Telecomun., Univ. de Santiago, Aveiro, Portugal
Abstract :
This paper, proposes improvements to TZ search motion estimation algorithm with reference to its implementation in JMVC reference software. In TZS, the search patterns that are implemented are 8-point diamond and 8-point square. When these are replaced with hexagonal patterns, there is a large improvement in encoding time. Further, the TZS algorithm is improved by changing the searching threshold for each grid in the search area. Simulation results show that the overall encoding time can be reduced by almost 50% compared to TZS algorithm, while maintaining the same PSNR and bitrate.
Keywords :
motion estimation; video coding; 8-point diamond; 8-point square; JMVC reference software; TZ search motion estimation algorithm; TZS algorithm; hexagonal patterns; multiview video coding; search patterns; searching threshold; Bit rate; Diamond-like carbon; Encoding; Motion estimation; PSNR; Prediction algorithms; Software algorithms; H.264; JMVC; MVC; Motion Estimation;
Conference_Titel :
Systems, Signals and Image Processing (IWSSIP), 2012 19th International Conference on
Conference_Location :
Vienna
Print_ISBN :
978-1-4577-2191-5