Motion-Homogeneous-Based Fast Transcoding Method From H.264/AVC to HEVC

With the popularity of high-efficiency video coding (HEVC) standard, a video server usually transcodes a video stream to HEVC for its higher compression ratio. In this paper, a fast H.264/advanced video coding (AVC) to HEVC transcoding method is proposed. In the HEVC encoding procedure, a coding uni...

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Bibliographic Details
Published in:IEEE transactions on multimedia Vol. 19; no. 7; pp. 1416 - 1430
Main Authors: Yuan, Hui, Guo, Chenglin, Liu, Ju, Wang, Xu, Kwong, Sam
Format: Journal Article
Language:English
Published: Piscataway IEEE 01.07.2017
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Coding
Complexity theory
Compression ratio
H.264/advanced video coding (AVC)
high-efficiency video coding (HEVC)
low complexity video coding
motion-homogeneous bloc
Servers
Streaming media
Transcoding
Transform coding
Video coding
Video compression
video transcoding
ISSN:1520-9210, 1941-0077
Online Access:Get full text
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Summary:With the popularity of high-efficiency video coding (HEVC) standard, a video server usually transcodes a video stream to HEVC for its higher compression ratio. In this paper, a fast H.264/advanced video coding (AVC) to HEVC transcoding method is proposed. In the HEVC encoding procedure, a coding unit (CU), which is a motion-homogeneous block, is first checked based on the analysis of the decoded information from H.264/AVC bit stream. Then, for motion-homogeneous blocks, CU depth and the corresponding prediction unit (PU) mode's early termination strategies are proposed based on the CU size and corresponding prior statistical knowledge. For non-motion-homogeneous blocks, a corresponding PU mode's early termination strategy is also proposed. Experimental results demonstrate the effectiveness of the proposed method.
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ISSN:1520-9210
1941-0077
DOI:10.1109/TMM.2017.2669858