FRANÇAIS
A showcase of ÉTS researchers’ publications and other contributions
SEARCH

Fast H.264 to HEVC transcoder based on post-order traversal of quadtree structure

Downloads

Downloads per month over past year

Franche, Jean-François et 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 : 13.

[img]
Preview
PDF
Coulombe S. 2015 12100 Fast H.264 to HEVC transcoder.pdf - Accepted Version
Use licence: All rights reserved to copyright holder.

Download (286kB) | Preview
[img]
Preview
PDF
Coulombe S. 2015 12100 ppt Fast H.264 to HEVC transcoder.pdf - Presentation
Use licence: All rights reserved to copyright holder.

Download (245kB) | Preview

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

Actions (login required)

View Item View Item