Journal of EEIS
Current Result Document :
| 한글제목(Korean Title) |
An Effective Rate Control Algorithm for Region-based H.263 Video Codec under Time-varying Channels |
| 영문제목(English Title) |
An Effective Rate Control Algorithm for Region-based H.263 Video Codec under Time-varying Channels |
| 저자(Author) |
Hwangjun Song
|
| 원문수록처(Citation) |
VOL 04 NO. 06 PP. 0707 ~ 0718 (1999. 12) |
한글내용
(Korean Abstract) |
|
영문내용
(English Abstract) |
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. |
| 키워드(Keyword) |
Region-Based
H.263
Rate Control
Time-Varying Channels
|
| 파일첨부 |
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