상세정보
학술대회
Efficient Control for the Distortion Incurred by Dropping DCT Coefficients in Compressed Domain
- 저자
- 김진수, 김재곤
- 발행일
- 200511
- 출처
- Pacific Rim Conference on Multimedia (PCM) 2005 (LNCS 3767), v.3767, pp.653-663
- 협약과제
- 05MR3100, 통방융합 환경에서의 유비쿼터스 콘텐츠 서비스 기술 개발, 홍진우
- 초록
- 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 제안 키워드
- Compressed Domain, DCT coefficients, Encoding system, Proposed model, distortion control, error propagation, estimation model, rate-distortion, video sequences