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Improved Motion Estimation Using Early Zero-Block Detection

Abstract

We incorporate the early zero-block detection technique into the UMHexagonS algorithm, which has already been adopted in H.264/AVC JM reference software, to speed up the motion estimation process. A nearly sufficient condition is derived for early zero-block detection. Although the conventional early zero-block detection method can achieve significant improvement in computation reduction, the PSNR loss, to whatever extent, is not negligible especially for high quantization parameter (QP) or low bit-rate coding. This paper modifies the UMHexagonS algorithm with the early zero-block detection technique to improve its coding performance. The experimental results reveal that the improved UMHexagonS algorithm greatly reduces computation while maintaining very high coding efficiency.

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Correspondence to YM Lee.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Lee, Y., Tsai, Y. & Lin, Y. Improved Motion Estimation Using Early Zero-Block Detection. J Image Video Proc 2008, 524793 (2008). https://doi.org/10.1155/2008/524793

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Keywords

  • Motion Estimation
  • Estimation Process
  • Code Performance
  • High Quantization
  • Quantization Parameter