Journal of Korea Multimedia Society (한국멀티미디어학회논문지)
- Volume 8 Issue 12
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- Pages.1581-1588
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- 2005
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- 1229-7771(pISSN)
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- 2384-0102(eISSN)
Efficient Control for the Distortion Incurred by Dropping DCT Coefficients in Compressed Domain
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Kim Jin-Soo
(Dept. of Multimedia Engineering, Hanbat National University) ;
- Yun Mong-Han (Dept. of Multimedia Engineering, Hanbat National University) ;
- Park Jong-Kab (Dept. of Multimedia Engineering, Hanbat National University)
- Published : 2005.12.01
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.