ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 Error Concealment Using Intra-Mode Information Included in H.264/AVC-Coded Bitstream
Cited 6 time in scopus Download 2 time Share share facebook twitter linkedin kakaostory
저자
김동형, 정세윤, 최진수, 전광길, 김승종, 정제창
발행일
200808
출처
ETRI Journal, v.30 no.4, pp.506-515
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.08.0108.0196
협약과제
08MR4800, 차세대DTV핵심기술개발(표준화연계)-무안경개인형3D방송기술개발(계속), 안치득
초록
The H.264/AVC standard has adopted new coding tools such as ultra-prediction, variable block size, motion estimation with quarter-pixel-accuracy, loop filter, and so on. The adoption of these tools enables an H.264/AVC-coded bitstream to have more information than was possible with previous standards. In this paper, we propose an effective spatial error concealment method with low complexity in H.264/AVC intra-frame. From information included in an H.264/AVC-coded bitstream, we use prediction modes of intra-blocks to recover a damaged block. This is because the prediction direction in each prediction mode is highly correlated to the edge direction. We first estimate the edge direction of a damaged block using the prediction modes of the intra-blocks adjacent to a damaged block and classify the area inside the damaged block into edge and flat areas. Our method then recovers pixel values in the edge area using edge-directed interpolation, and recovers pixel values in the flat area using weighted interpolation. Simulation results show that the proposed method yields better video quality than conventional approaches.
키워드
Adaptive interpolation, H.264/AVC video coding, Spatial error concealment, Totra-prediction mode
KSP 제안 키워드
Adaptive interpolation, Coding Tools, Edge direction, Edge-directed interpolation, H.264/AVC video, Motion estimation(ME), Pixel Value, Prediction mode, Spatial error concealment, Variable Block Size(VBS), Video coding