Adaptive Zero-Coefficient Distribution Scan for Inter Block Mode Coding of H.264/AVC

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概要

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• Scanning quantized transform coefficients is an important tool for video coding. For example, the MPEG-4 video coder adopts three different scans to get better coding efficiency. This paper proposes an adaptive zero-coefficient distribution scan in inter block coding. The proposed method attempts to improve H.264/AVC zero coefficient coding by modifying the scan operation. Since the zero-coefficient distribution is changed by the proposed scan method, new VLC tables for syntax elements used in context-adaptive variable length coding (CAVLC) are also provided. The savings in bit-rate range from 2.2% to 5.1% in the high bit-rate cases, depending on different test sequences.

著者

• WANG Jing-Xin

  Dept. of CSIE. National Cheng-Kung University

• SU Alvin

  Dept. of CSIE. National Cheng-Kung University

関連論文

• Adaptive Zero-Coefficient Distribution Scan for Inter Block Mode Coding of H.264/AVC
• Adaptive Zero-Coefficient Distribution Scan for Inter Block Mode Coding of H.264/AVC

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