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http://dx.doi.org/10.5909/JBE.2008.13.5.622

An Efficient Error Compensation Method for Thumbnail Extraction in H.264/AVC Bitstreams  

Yoon, Myung-Keun (VIA-Multimedia Center at Kwangwoon University)
Lee, Yeo-Song (VIA-Multimedia Center at Kwangwoon University)
Sohn, Chae-Bong (VIA-Multimedia Center at Kwangwoon University)
Park, Ho-Chong (VIA-Multimedia Center at Kwangwoon University)
Ahn, Chang-Beom (VIA-Multimedia Center at Kwangwoon University)
Oh, Seoung-Jun (VIA-Multimedia Center at Kwangwoon University)
Publication Information
Journal of Broadcast Engineering / v.13, no.5, 2008 , pp. 622-635 More about this Journal
Abstract
Recently, high definition media services like HDTV and IPTV are growing. A fast reduced-size image extracting method is required to meet what those services require. Conventional DC image extracting methods, however, can't be applied to H.264/AVC streams since a spatial domain prediction scheme is adopted in H.264/AVC intra mode. To solve this problem, a thumbnail extraction method in H.264/AVC was proposed. However, the method has mismatch problem which was caused by round-off operation in intra prediction and mismatch between integer and floating point calculation. In this paper, we propose an error compensation method for extracting thumbnail directly in H.264/AVC bitstreams. The compensation method introduces the mismatch problem in thumbnail extraction and presents compensation values. Through the implementation and performance evaluation, proposed method compensated round-off error efficiently in D1 and HD sequences while the additional extraction time is negligible.
Keywords
Thumbnail extraction; H.264/AVC Intra frame; Thumbnail image;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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