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Paper Abstract and Keywords
Presentation 2022-11-11 09:35
Predictive Coding of UHDTV using Local-Decoded Images with Different Degree of Blur in Each Coding Unit
Yasutaka Matsuo (NES)
Abstract (in Japanese) (See Japanese page) 
(in English) Video coding efficiency is degrade in case of degree of blur is different between current picture and its reference picture, because degrade accuracy of intra and inter predictions. To improve the video coding efficiency in such case, I propose an advanced method of these predictions. The proposed method generates sharpened and blurred images of a local-decoded image in each coding unit of these predictions. These sharpened and blurred images are utilized for these predictions in addition conventionally used local-decoded image. These three images are selected according to the rate-distortion optimization processing in video codec. Experiments calculate the Bjøntegaard Delta-Rate by using videos with degree of blur different for intra and inter pictures. In consideration section, the experiment results are analyzed in detail for example selection ratio is calculated of the sharpened and blurred images in the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) Predictive Coding / Sharpened Image / Blurred Image / Coding Unit / Local-Decoded Image / / /  
Reference Info. ITE Tech. Rep., vol. 46, no. 35, BCT2022-56, pp. 41-44, Nov. 2022.
Paper # BCT2022-56 
Date of Issue 2022-11-03 (BCT) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Conference Date 2022-11-10 - 2022-11-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Forest-Sendai 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To BCT 
Conference Code 2022-11-BCT-OCS-CMN-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Predictive Coding of UHDTV using Local-Decoded Images with Different Degree of Blur in Each Coding Unit 
Sub Title (in English)  
Keyword(1) Predictive Coding  
Keyword(2) Sharpened Image  
Keyword(3) Blurred Image  
Keyword(4) Coding Unit  
Keyword(5) Local-Decoded Image  
1st Author's Name Yasutaka Matsuo  
1st Author's Affiliation NHK Engineering System (NES)
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Speaker Author-1 
Date Time 2022-11-11 09:35:00 
Presentation Time 25 minutes 
Registration for BCT 
Paper # BCT2022-56 
Volume (vol) vol.46 
Number (no) no.35 
Page pp.41-44 
Date of Issue 2022-11-03 (BCT) 

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