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Content-based video transcoding in compressed domain
- Issue Date
- Jul-2002
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- transcoding; DCT manipulation; discontinuity detection; adaptive filtering
- Citation
- SIGNAL PROCESSING-IMAGE COMMUNICATION, v.17, no.6, pp 497 - 507
- Pages
- 11
- Journal Title
- SIGNAL PROCESSING-IMAGE COMMUNICATION
- Volume
- 17
- Number
- 6
- Start Page
- 497
- End Page
- 507
- ISSN
- 0923-5965
1879-2677
- Abstract
- In this paper, we propose a content-based moving picture expert group transcoding method using a discontinuity feature in the discrete cosine transform (DCT) domain. A DCT block is transcoded differently depending on the height of dominant discontinuity within a block. In the experiment, we show the result that the video quality of content-based transcoding is better than that of a constant cut-off method and the processing time of the adaptive method is much lesser compared with the pixel domain methods in the same bandwidth. (C) 2002 Elsevier Science B.V All rights reserved.
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