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Proceedings Paper

An all-zero blocks early detection method for high-efficiency video coding
Author(s): Zhengguang Lv; Shengfu Dong; Ronggang Wang; Xiaodong Xie; Huizhu Jia; Wenmin Wang; Wen Gao
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Paper Abstract

The High Efficiency Video Coding has a significant compression performance benefit versus previous standards. Thanks to the high efficiency prediction tools, blocks with all-zero quantized transform coefficients are quite common in HEVC. The computation load of transform and quantization can be remarkably reduced if the all-zero blocks can be detected prior to transform and quantization. Based on the theoretical analysis of the integer transform and quantization process in HEVC, we propose some SAD thresholds under which all-zero block can be detected. Simulation results show that with our proposed method, nearly 37% time saving for computation time of transform and quantization can be saved.

Paper Details

Date Published: 17 February 2014
PDF: 7 pages
Proc. SPIE 9029, Visual Information Processing and Communication V, 902902 (17 February 2014); doi: 10.1117/12.2039048
Show Author Affiliations
Zhengguang Lv, Peking Univ. (China)
Shengfu Dong, Peking Univ. (China)
Ronggang Wang, Peking Univ. (China)
Xiaodong Xie, Peking Univ. (China)
Huizhu Jia, Peking Univ. (China)
Wenmin Wang, Peking Univ. (China)
Wen Gao, Peking Univ. (China)


Published in SPIE Proceedings Vol. 9029:
Visual Information Processing and Communication V
Amir Said; Onur G. Guleryuz; Robert L. Stevenson, Editor(s)

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