Title :
HEVC Intra coding of ultra HD video with reduced complexity
Author :
Dhollande, N. ; Le Meur, O. ; Guillemot, C.
Author_Institution :
Cesson-Sevigne, France
Abstract :
The HEVC (High Efficiency Video Coding) standard brings the necessary quality versus rate performance for efficient transmission of Ultra High Definition formats (UHD). However, one of the remaining barriers to its adoption for UHD content is its high encoding complexity. In this paper, we address the problem of HEVC encoding complexity reduction by proposing a strategy to infer UHD coding modes and quadtree structure from those optimized for the lower (HD) resolution version of the input video. A speed-up factor of 3 is achieved compared to directly encoding the UHD format at the expense of a limited quality loss.
Keywords :
image resolution; quadtrees; video coding; HEVC intracoding; UHD video coding; complexity reduction; high efficiency video coding standard; quadtree structure; ultrahigh definition video coding; video resolution; Complexity theory; Encoding; High definition video; Proposals; Rate-distortion; Standards; Video coding; High Efficiency Video Coding (HEVC); UHDTV; complexity reduction; intra prediction; mode decision;
Conference_Titel :
Image Processing (ICIP), 2014 IEEE International Conference on
Conference_Location :
Paris
DOI :
10.1109/ICIP.2014.7025837
