NDLI: Fast motion estimation and mode decision for H.264 video coding in packet loss environment

Content Provider	IEEE Xplore Digital Library
Author	Li Liu Xinhua Zhuang
Copyright Year	2008
Description	Author affiliation: Comput. Sci. Dept., Univ. of Missouri-Columbia, Columbia, MO (Li Liu; Xinhua Zhuang)
Abstract	H.264 coding standard offers several coding modes, including intra mode and inter prediction mode with different block sizes. Since intra mode does not need reference from previous frames, in packet loss environment, intra mode can be a good choice to stop error propagation and enhance decoded video quality. To achieve best coding efficiency, such best mode decision is often made upon optimizing rate distortion (RD) constraints. Unfortunately, this RD optimization process incurs a considerable complexity increase of the encoder. To solve the problem, we propose a fast motion estimation and mode decision algorithm for H.264 video coding in packet loss environment. Unlike previous algorithms, our method takes advantage of channel distortion estimation as assistance to decide if an early termination of existing coding mode choices is necessary. Experiment results show that, compared with error resilient coding method proposed in the work of Stockhammer et al. (2002) and Yuan Zhang et al. (2004), the proposed algorithm can enhance speed up to 10 times while maintaining similar average picture quality.
Starting Page	781
Ending Page	784
File Size	155987
Page Count	4
File Format	PDF
ISBN	9781424425709
DOI	10.1109/ICME.2008.4607551
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-23
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Encoding Channel estimation Motion estimation Quantization Image analysis Propagation losses PSNR error prone channel h.264 fast motion estimation fast mode decision error resilient
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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