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The Scientific World Journal
Volume 2015, Article ID 418437, 10 pages
Research Article

H.264 SVC Complexity Reduction Based on Likelihood Mode Decision

1Faculty of Information & Communication, Anna University, Chennai 600025, India
2Department of ECE, Velammal Institute of Technology, Panchetti, Tamil Nadu 601204, India
3RMD Engineering College, Kavaraipettai, Tamil Nadu 601206, India

Received 21 March 2015; Revised 20 May 2015; Accepted 7 June 2015

Academic Editor: Bruno Carpentieri

Copyright © 2015 L. Balaji and K. K. Thyagharajan. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


H.264 Advanced Video Coding (AVC) was prolonged to Scalable Video Coding (SVC). SVC executes in different electronics gadgets such as personal computer, HDTV, SDTV, IPTV, and full-HDTV in which user demands various scaling of the same content. The various scaling is resolution, frame rate, quality, heterogeneous networks, bandwidth, and so forth. Scaling consumes more encoding time and computational complexity during mode selection. In this paper, to reduce encoding time and computational complexity, a fast mode decision algorithm based on likelihood mode decision (LMD) is proposed. LMD is evaluated in both temporal and spatial scaling. From the results, we conclude that LMD performs well, when compared to the previous fast mode decision algorithms. The comparison parameters are time, PSNR, and bit rate. LMD achieve time saving of 66.65% with 0.05% detriment in PSNR and 0.17% increment in bit rate compared with the full search method.