Title :
An adaptive early skip mode decision scheme for multiview video coding
Author :
Zatt, Bruno ; Shafique, Muhammad ; Bampi, Sergio ; Henkel, Jorg
Author_Institution :
Dept. of Embedded Syst., Karlsruhe Inst. of Technol. (KIT), Karlsruhe, Germany
Abstract :
In this work a novel scheme is proposed for adaptive early SKIP mode decision in the multiview video coding based on mode correlation in the 3D-neighborhood, variance, and ratedistortion properties. Our scheme employs an adaptive thresholding mechanism in order to react to the changing values of Quantization Parameter (QP). Experimental results demonstrate that our scheme provides a consistent time saving over a wide range of QP values. Compared to the exhaustive mode decision, our scheme provides a significant reduction in the encoding complexity (up to 77%) at the cost of a small PSNR loss (0.172 dB in average). Compared to state-of-the-art, our scheme provides an average 2x higher complexity reduction with a relatively higher PSNR value (avg. 0.2 dB).
Keywords :
image segmentation; quantisation (signal); rate distortion theory; video coding; 3D-neighborhood variance; PSNR; QP; adaptive early skip mode decision scheme; adaptive thresholding mechanism; multiview video coding; quantization parameter; rate distortion;
Conference_Titel :
Picture Coding Symposium (PCS), 2010
Conference_Location :
Nagoya
Print_ISBN :
978-1-4244-7134-8
DOI :
10.1109/PCS.2010.5702527