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학술지
에러 강인성 향상을 위한 다상 다운 샘플링 적용 H.264 동영상 부호화 기술
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- 저자
- 정은구, 지아 지예, 김해광, 최해철, 김재곤
- 발행일
- 200509
- 출처
- 방송공학회논문지, v.10 no.3, pp.340-347
- ISSN
- 1226-7953
- 출판사
- 한국방송공학회 (KOSBE)
- 협약과제
- 05MR3100, 통방융합 환경에서의 유비쿼터스 콘텐츠 서비스 기술 개발, 홍진우
- 초록
- This paper presents a polyphase down sampling based multiple description coding applied to H.264 video coding standard. For a given macroblock, a residual macroblock is calculated by motion estimation, and before applying DCT, macroblock to code in four separate descriptions. Experiments were performed for all the 9 test sequences of JVT SVC standardization in various packet loss patterns. Experimental results show that the proposed one gives 0.5 to 5 dB enhancement over an error-concealment based on the slice group map technolgoy.
- KSP 제안 키워드
- Down-sampling, Motion estimation(ME), Multiple Description Coding(MDC), packet loss, slice group, video coding standard