A fast motion estimation algorithm for DV to MPEG-2 conversion

2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300) Pub Date : 2002-06-18 DOI:10.1109/ICCE.2002.1013964

H. Kato, H. Yanagihara, Y. Nakajima, Y. Hatori

引用次数: 3

Abstract

A fast motion estimation algorithm for digital video (DV) to MPEG-2 conversion is described. Since DCT information is available from DV data and 2/spl times/2 IDCT can be achieved by simple summation and subtraction operations, a low-resolution image is constructed and used for a coarse motion search. Then a fine search is performed using an extended two step search in the original image domain. The experimental results show that the proposed method is more than 160 times faster than the full search whereas the PSNR and search speed are greatly improved when compared with the conventional method.

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一种DV到MPEG-2转换的快速运动估计算法

介绍了一种用于数字视频(DV)到MPEG-2转换的快速运动估计算法。由于从DV数据中可以获得DCT信息，并且通过简单的求和和减法运算可以获得2/spl次/2 IDCT，因此构建了低分辨率图像并用于粗运动搜索。然后，在原始图像域采用扩展的两步搜索进行精细搜索。实验结果表明，该方法的搜索速度比全搜索快160倍以上，PSNR和搜索速度均较传统方法有较大提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300)

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