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
收藏
页码：1424 / 1430
页数：7
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