NDLI: Fast block size selection for H.264 video-downsizing transcoding

Content Provider	IEEE Xplore Digital Library
Author	Zhuo-Yi Lu Wan-Chi Siu Ke-Bin Jia
Copyright Year	2010
Description	Author affiliation: School of Electronic Information and Control Engineering, Beijing University of Technology, China (Zhuo-Yi Lu; Ke-Bin Jia) \|\| Department of Electronic and Information Engineering, Hong Kong Polytechnic University, Hong Kong (Wan-Chi Siu)
Abstract	This paper presents a fast variable block size selection method for inter macro-blocks in H.264 video downsizing transcoding. It makes use of the relationship between motion direction and edge direction of macro-blocks, and selects the optimal inter mode by measuring the dominant edge direction using the residual macro-block. Without fully decoding the compressed high resolution video, Discrete Cosine Transform coefficients were extracted and reused in transform domain to construct the residual macro-block. Based on the measurement of dominant edge direction, only a small number of inter-modes are required for Rate Distortion Optimal evaluation. Experimental results show that the proposed method can reduce the computational complexity dramatically with little compression performance degradation.
Starting Page	101
Ending Page	104
File Size	1056026
Page Count	4
File Format	PDF
ISBN	9781424471652
e-ISBN	9781424471676
DOI	10.1109/ISSPA.2010.5605498
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-10
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation
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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