Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21857
Title: Fast Block Size Selection for H.264 video-downsizing transcoding
Authors: Lu, ZY
Siu, WC 
Jia, KB
Issue Date: 2010
Source: 10th International Conference on Information Sciences, Signal Processing and their Applications, ISSPA 2010, 2010, 5605498, p. 101-104 How to cite?
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.
Description: 10th International Conference on Information Sciences, Signal Processing and their Applications, ISSPA 2010, Kuala Lumpur, 10-13 May 2010
URI: http://hdl.handle.net/10397/21857
ISBN: 9781424471676
DOI: 10.1109/ISSPA.2010.5605498
Appears in Collections:Conference Paper

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