Details
| Original language | English |
|---|---|
| Title of host publication | 2016 Picture Coding Symposium |
| Subtitle of host publication | PCS 2016 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (electronic) | 9781509059669 |
| Publication status | Published - Apr 2017 |
| Event | 2016 Picture Coding Symposium, PCS 2016 - Nuremberg, Germany Duration: 4 Dec 2016 → 7 Dec 2016 |
Abstract
Intra coding is an indispensable part of all video coding systems. However, the intra prediction in the HEVC standard has several limitations with respect to the available amount of information which is exploited for the prediction and the limited number of prediction directions per block. In this paper, we propose a novel contour-based multidirectional intra coding mode which combines computer vision technologies with conventional video coding technologies to overcome these limitations. Structural parts and smooth parts of the video signal are predicted separately. While the structural parts are predicted based on contour detection, parameterization and extrapolation algorithms, the smooth areas are filled by means of low complexity technologies like sample value continuation. Thereby, the coding efficiency is considerably increased, with weighted average BD-rate gains of up to 1.9% compared to HM-16.3. A stand-alone codec implementation achieves average bit rate savings of 29.7% over JPEG and outperforms related work.
ASJC Scopus subject areas
- Engineering(all)
- Media Technology
- Computer Science(all)
- Signal Processing
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2016 Picture Coding Symposium: PCS 2016. Institute of Electrical and Electronics Engineers Inc., 2017. 7906319.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Contour-based Multidirectional Intra Coding for HEVC
AU - Laude, Thorsten
AU - Ostermann, Jörn
PY - 2017/4
Y1 - 2017/4
N2 - Intra coding is an indispensable part of all video coding systems. However, the intra prediction in the HEVC standard has several limitations with respect to the available amount of information which is exploited for the prediction and the limited number of prediction directions per block. In this paper, we propose a novel contour-based multidirectional intra coding mode which combines computer vision technologies with conventional video coding technologies to overcome these limitations. Structural parts and smooth parts of the video signal are predicted separately. While the structural parts are predicted based on contour detection, parameterization and extrapolation algorithms, the smooth areas are filled by means of low complexity technologies like sample value continuation. Thereby, the coding efficiency is considerably increased, with weighted average BD-rate gains of up to 1.9% compared to HM-16.3. A stand-alone codec implementation achieves average bit rate savings of 29.7% over JPEG and outperforms related work.
AB - Intra coding is an indispensable part of all video coding systems. However, the intra prediction in the HEVC standard has several limitations with respect to the available amount of information which is exploited for the prediction and the limited number of prediction directions per block. In this paper, we propose a novel contour-based multidirectional intra coding mode which combines computer vision technologies with conventional video coding technologies to overcome these limitations. Structural parts and smooth parts of the video signal are predicted separately. While the structural parts are predicted based on contour detection, parameterization and extrapolation algorithms, the smooth areas are filled by means of low complexity technologies like sample value continuation. Thereby, the coding efficiency is considerably increased, with weighted average BD-rate gains of up to 1.9% compared to HM-16.3. A stand-alone codec implementation achieves average bit rate savings of 29.7% over JPEG and outperforms related work.
UR - http://www.scopus.com/inward/record.url?scp=85019411018&partnerID=8YFLogxK
U2 - 10.1109/pcs.2016.7906319
DO - 10.1109/pcs.2016.7906319
M3 - Conference contribution
AN - SCOPUS:85019411018
BT - 2016 Picture Coding Symposium
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 Picture Coding Symposium, PCS 2016
Y2 - 4 December 2016 through 7 December 2016
ER -