IEICE TRANSACTIONS on Information
Quantization Parameter Refinement in H.264 through ρ-Domain Rate Model
Summary :
This letter proposes a new algorithm of refining the quantization parameter in H.264 real-time encoding. In the H.264 encoding, the quantization parameter computed according to the quadratic rate model is not accurate in meeting the target bit rate. In order to make the actual encoded bit rate closer to the target bit rate, ρ-domain rate model is introduced in our proposed quantization parameter refinement algorithm. Simulation results show that the proposed algorithm achieves obvious gain in PSNR and has stabler encoded bit rate compared to Jiang's algorithm.
- Publication
- IEICE TRANSACTIONS on Information Vol.E91-D No.6 pp.1834-1837
- Publication Date
- 2008/06/01
- Publicized
- Online ISSN
- 1745-1361
- DOI
- 10.1093/ietisy/e91-d.6.1834
- Type of Manuscript
- LETTER
- Category
- Speech and Hearing
Authors
Keyword
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Yutao DONG, Xiangzhong FANG, Jing YANG, "Quantization Parameter Refinement in H.264 through ρ-Domain Rate Model" in IEICE TRANSACTIONS on Information,
vol. E91-D, no. 6, pp. 1834-1837, June 2008, doi: 10.1093/ietisy/e91-d.6.1834.
Abstract: This letter proposes a new algorithm of refining the quantization parameter in H.264 real-time encoding. In the H.264 encoding, the quantization parameter computed according to the quadratic rate model is not accurate in meeting the target bit rate. In order to make the actual encoded bit rate closer to the target bit rate, ρ-domain rate model is introduced in our proposed quantization parameter refinement algorithm. Simulation results show that the proposed algorithm achieves obvious gain in PSNR and has stabler encoded bit rate compared to Jiang's algorithm.
URL: https://global.ieice.org/en_transactions/information/10.1093/ietisy/e91-d.6.1834/_p
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@ARTICLE{e91-d_6_1834,
author={Yutao DONG, Xiangzhong FANG, Jing YANG, },
journal={IEICE TRANSACTIONS on Information},
title={Quantization Parameter Refinement in H.264 through ρ-Domain Rate Model},
year={2008},
volume={E91-D},
number={6},
pages={1834-1837},
abstract={This letter proposes a new algorithm of refining the quantization parameter in H.264 real-time encoding. In the H.264 encoding, the quantization parameter computed according to the quadratic rate model is not accurate in meeting the target bit rate. In order to make the actual encoded bit rate closer to the target bit rate, ρ-domain rate model is introduced in our proposed quantization parameter refinement algorithm. Simulation results show that the proposed algorithm achieves obvious gain in PSNR and has stabler encoded bit rate compared to Jiang's algorithm.},
keywords={},
doi={10.1093/ietisy/e91-d.6.1834},
ISSN={1745-1361},
month={June},}
Copy
TY - JOUR
TI - Quantization Parameter Refinement in H.264 through ρ-Domain Rate Model
T2 - IEICE TRANSACTIONS on Information
SP - 1834
EP - 1837
AU - Yutao DONG
AU - Xiangzhong FANG
AU - Jing YANG
PY - 2008
DO - 10.1093/ietisy/e91-d.6.1834
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E91-D
IS - 6
JA - IEICE TRANSACTIONS on Information
Y1 - June 2008
AB - This letter proposes a new algorithm of refining the quantization parameter in H.264 real-time encoding. In the H.264 encoding, the quantization parameter computed according to the quadratic rate model is not accurate in meeting the target bit rate. In order to make the actual encoded bit rate closer to the target bit rate, ρ-domain rate model is introduced in our proposed quantization parameter refinement algorithm. Simulation results show that the proposed algorithm achieves obvious gain in PSNR and has stabler encoded bit rate compared to Jiang's algorithm.
ER -
English
