Fast intermode decision algorithm based on contextual mode and priority information for H.264/AVC video encoding system

Hyun-Ki Jung; Hyo-Sung Kim; Byung-Gyu Kim

doi:10.1117/1.3647552

1 November 2011 Fast intermode decision algorithm based on contextual mode and priority information for H.264/AVC video encoding system

Hyun-Ki Jung, Hyo-Sung Kim, Byung-Gyu Kim

Author Affiliations +

Optical Engineering, Vol. 50, Issue 11, 117403 (November 2011). https://doi.org/10.1117/1.3647552

Abstract

The recent H.264/AVC video coding standard provides a higher coding efficiency than previous standards. H.264/AVC achieves a bit rate saving of more than 50% with many new technologies, but it shows very heavy computational complexity. In this paper, a fast mode decision scheme for interframe coding is proposed to reduce the computational complexity for H.264/AVC video encoding system. To reduce the block mode decision complexity in interframe coding, we use the contextual information based on the co-located and neighboring macroblocks (MBs) to detect a proper MB that can be stopped early. Then, for the current MB, a priority information of the context is suggested for adding more mode types adaptively. The proposed algorithm shows the average speed-up factors of 59.11 to 77.41% for various sequences with a negligible bit increment and a minimal loss of image quality, in JM reference softwares.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Hyun-Ki Jung, Hyo-Sung Kim, and Byung-Gyu Kim "Fast intermode decision algorithm based on contextual mode and priority information for H.264/AVC video encoding system," Optical Engineering 50(11), 117403 (1 November 2011). https://doi.org/10.1117/1.3647552

Published: 1 November 2011

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