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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- Korean Institute of Information Scientists and Engineers Journal of Electrical Engineering and Information Science Journal of Electrical Engineering and Information Science Vol.4 No.6
- 발행연도
- 1999.12
- 수록면
- 707 - 718 (12page)
이용수
초록· 키워드
오류제보하기
A region-based video coding scheme based on H.263+ standard is proposed and an effective rate control algorithm under time-varying low-bit-rate channel bandwidth is presented. The region-based coding scheme is a hybrid method that consists of the traditional block DCT coding and the object-based coding. Basically, we employ H.263+ as the platform, and develop a fast macroblock-based segmentation method to implement the region-based video codec. The proposed rate control algorithm consists of three levels: encoding frame rate control, frame-layer rate control and macroblock-layer rate control. The goal is to enhance the visual quality of decoded frames without obvious motion unsmoothness under time-varying channels. Finally, the experimental results are presented to show the efficiency of proposed region-based video coding and rate control algorithm.
목차
Abstract
Ⅰ. Introduction
Ⅱ. Fast Moving Region Segmentation Algorithm
Ⅲ. Frame Layer R-D Models
Ⅳ. Proposed Rate Control Algorithm under the Time-varying CBR Channel
Ⅴ. Experimental Results
Ⅵ. Conclusion
References
저자소개
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