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Paper Abstract and Keywords
Presentation 2010-02-26 14:00
Improvement of Video Coding Performance using Quantization Error Optimization of Reference Picture
Taiga Muromoto, Naoya Sagara, Kenji Sugiyama (Seikei Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) The local decoded picture is basically used as the reference for inter-picture prediction to avoid the mismatch between encoding and decoding. However, the coding efficiency is not necessarily the optimal in this processing. In this report, we try to use the original picture as the reference. In this case, the mismatch causes degradation of the picture quality. However, the bit amount will be reduced. To take optimal coding, we propose the adaptive method based on the bit amount and the decoded picture error. The original picture is used only in the block which has less bit amount and small error increasing. We apply this coding to MPEG-4 Main Profile. As the results of experiments, about 0.2dB gain in PSNR is given in a sequence. It is recognized that the adaptive method works successfully and coding performance can be improved.
Keyword (in Japanese) (See Japanese page) 
(in English) Inter-picture prediction / Local decoded picture / Coding loop / Quantization error / / / /  
Reference Info. ITE Tech. Rep., vol. 34, no. 9, BCT2010-31, pp. 1-4, Feb. 2010.
Paper # BCT2010-31 
Date of Issue 2010-02-19 (BCT) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Committee BCT IEEE-BT  
Conference Date 2010-02-26 - 2010-02-27 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To BCT 
Conference Code 2010-02-BCT-BT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement of Video Coding Performance using Quantization Error Optimization of Reference Picture 
Sub Title (in English)  
Keyword(1) Inter-picture prediction  
Keyword(2) Local decoded picture  
Keyword(3) Coding loop  
Keyword(4) Quantization error  
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1st Author's Name Taiga Muromoto  
1st Author's Affiliation Seikei University (Seikei Univ.)
2nd Author's Name Naoya Sagara  
2nd Author's Affiliation Seikei University (Seikei Univ.)
3rd Author's Name Kenji Sugiyama  
3rd Author's Affiliation Seikei University (Seikei Univ.)
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Speaker
Date Time 2010-02-26 14:00:00 
Presentation Time 30 
Registration for BCT 
Paper # ITE-BCT2010-31 
Volume (vol) ITE-34 
Number (no) no.9 
Page pp.1-4 
#Pages ITE-4 
Date of Issue ITE-BCT-2010-02-19 


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