A fast thumbnail extraction method in H.264/AVC video streams

In this paper, we propose a theoretical method for extracting a thumbnail directly from an H.264/AVC 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...

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Bibliographic Details
Published in:IEEE transactions on consumer electronics 2009-08, Vol.55 (3), p.1424-1430
Main Authors: Kim, Eun-Seok, Um, Tae-Woong, Oh, Seoung-Jun
Format: Article
Language:English
Subjects:
Automatic voltage control
Data mining
Discrete cosine transforms
Electronics
Equations
Extraction
Frames
Frequency domain analysis
Frequency domains
H.264/AVC
Image coding
intra frame
Lookup tables
Performance evaluation
Streaming media
Streams
Table lookup
Thumbnail
Transform coding
Video compression
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Description
Summary:In this paper, we propose a theoretical method for extracting a thumbnail directly from an H.264/AVC 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%.
ISSN:0098-3063
1558-4127
DOI:10.1109/TCE.2009.5278009