Franche, Jean-François and Coulombe, Stéphane.
2015.
« Fast H.264 to HEVC transcoder based on post-order traversal of quadtree structure ».
In 2015 IEEE International Conference on Image Processing (ICIP) (Quebec City, QC, Canada, Sept. 27-30, 2015)
pp. 477-481.
IEEE.
Compte des citations dans Scopus : 17.
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Abstract
In this paper, we propose a fast mode decision framework and a fast motion estimation algorithm for H.264 to High Efficiency Video Coding (HEVC) transcoding. The fast mode decision framework employs a post-order (bottom-up) traversal of the coding tree unit (CTU) quadtree. Based on this traversal and H.264 information, several strategies are proposed to reduce HEVC modes to be tested and a rate-distortion (RD) cost prediction model is used to terminate the processing of a tested mode early. The proposed fast motion estimation algorithm selects the best candidate from a list of H.264 motion vectors (MVs) and previously encoded HEVC MVs. Compared to a full re-encoding, experimental results show that the proposed solution achieves speed-ups of up to 12.75x, for an average BD-Rate of 3.28%.
| Item Type: | Conference proceeding |
|---|---|
| Professor: | Professor Coulombe, Stéphane |
| Affiliation: | Génie logiciel et des technologies de l'information |
| Date Deposited: | 18 Jan 2016 20:16 |
| Last Modified: | 30 May 2017 18:55 |
| URI: | https://espace2.etsmtl.ca/id/eprint/12100 |
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