ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술대회 A Fast Down-sampling Method for Arbitrary-ratio Spatial Scalability Based on Type-II DCT
Cited 1 time in scopus Download 0 time Share share facebook twitter linkedin kakaostory
저자
신일홍, 유정주, 홍진우
발행일
200803
출처
International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2008, pp.685-688
DOI
https://dx.doi.org/10.1109/ICASSP.2008.4517702
협약과제
07MR2900, 통방융합 환경에서의 유비쿼터스 콘텐츠 서비스 기술 개발, 유정주
초록
In a scalable video coding (SVC), spatial down/up-sampling of video sequences is an essential process for spatial scalability. We propose an arbitrary-ratio spatial down-sampling method based on the type-II DCT, with which down-sampling of H.264 SVC can be efficient. Simple windowing operation in the DCT domain is efficiently embedded in the proposed down-sampling method for aliasing reduction. A fast algorithm for arbitrary-ratio down-sampling is introduced with matrix decomposition and fast DCT. It achieves 80 % reduction of computation complexity in comparison with the direct matrix calculation. ©2008 IEEE.
KSP 제안 키워드
Aliasing Reduction, DCT domain, Down-sampling, Fast DCT, H.264 SVC, Matrix calculation, Matrix decomposition, Scalable Video Coding, Spatial Scalability, Type II, computation complexity