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Region-based H.263 Video Codec with Effective Rate Control Algorithm for Low VBR Video
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  • Region-based H.263 Video Codec with Effective Rate Control Algorithm for Low VBR Video
  • Region-based H.263 Video Codec with Effective Rate Control Algorithm for Low VBR Video
저자명
Song. Hwangjun
간행물명
한국통신학회논문지. The Journal of Korea Information and Communications Society. 네트워크 및 서비스
권/호정보
1999년|24권 |pp.1755-1766 (12 pages)
발행정보
한국통신학회
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정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

A region-based video codec based on the H.263+ standard is examined and its associated novel rate control scheme is proposed in this work. The region-based coding scheme is a hybrid method that consists of the traditional block DCT coding and the object-based coding. Basically, we adopt H.263+ as the platform, and develop a fast macroblock-based segmentation method to implement the region-based video codec. The proposed rate control solution includes rate control in three levels: encoding frame selection, frame-layer rate control and macroblock-layer rate control. The goal is to enhance the visual quality of decoded frames at low bit rates. The efficiency of proposed rate control scheme applied to the region-based video codes is demonstrated via several typical test sequences.