A Fast Thumbnail Extraction Method in H.264/AVC Video Streams

被引：12

作者：

Kim, Eun-Seok ^{[1
]}

Um, Tae-Woong

Oh, Seoung-Jun ^{[2
]}

机构：

[1] Samsung Elect Co Ltd, Suwon 442373, South Korea

[2] Kwangwoon Univ, Dept Elect Engn, Seoul, South Korea

来源：

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS | 2009年 / 55卷 / 03期

关键词：

Thumbnail; intra frame; H.264/AVC;

D O I：

10.1109/TCE.2009.5278009

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we propose a theoretical method for extracting a thumbnail directly from an H.2641A/VC intra frame in the frequency domain. Furthermore, the proposed scheme can extract the thumbnail very fast since all operations are directly applied to transformed coefficients and a lookup table (LUT) for each intra mode is used for this scheme. Through performance evaluation, while the subjective quality difference between our scheme and a conventional method is negligible, the former can extract the thumbnail faster than the latter by up to 63%.

引用

页码：1424 / 1430

页数：7

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