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Conference Paper
Efficient Control for the Distortion Incurred by Dropping DCT Coefficients in Compressed Domain
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- Authors
- Jin-Soo Kim, Jae-Gon Kim
- Issue Date
- 2005-11
- Citation
- Pacific Rim Conference on Multimedia (PCM) 2005 (LNCS 3767), v.3767, pp.653-663
- Publisher
- Springer
- Language
- English
- Type
- Conference Paper
- Abstract
- The primary goal of this paper is to facilitate the rate-distortion control in compressed domain, without introducing a full decoding and re-encoding system in pixel domain. For this aim, the error propagation behavior over several frame-sequences due to DCT coefficients-drop is investigated on the basis of statistical and empirical properties. Then, such properties are used to develop a simple estimation model for the CD distortion accounting for the characteristics of the underlying coded-frame. Experimental results show that the proposed model allows us to effectively control rate-distortions into coded-frames over different kinds of video sequences. © Springer-Verlag Berlin Heidelberg 2005.
- KSP Keywords
- Compressed Domain, DCT coefficients, Encoding system, Error propagation, Estimation model, Proposed model, Rate-Distortion, Video sequences, distortion control