HEVC Intra coding of ultra HD video with reduced complexity

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 t...

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Bibliographic Details
Main Authors: Dhollande, Nicolas, Le Meur, Olivier, Guillemot, Christine
Format: Conference Proceeding
Language:English
Subjects:
complexity reduction
Complexity theory
Encoding
High definition video
High Efficiency Video Coding (HEVC)
intra prediction
mode decision
Proposals
Rate-distortion
UHDTV
Video coding
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Summary: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.
ISSN:1522-4880
2381-8549
DOI:10.1109/ICIP.2014.7025837