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A novel Intra prediction for H.264/AVC using projections onto convex sets and direction-distance oriented prediction.

H.264/AVC intra prediction method is an efficient tool to reduce spatial redundancies by using multidirectional spatial prediction modes. In this paper, a novel intra prediction method is designed to improve coding efficiency. Firstly, we propose a direction-distance oriented prediction which considers the distance between the predict value and the reference samples according to the direction of the prediction modes. Secondly, we apply the concept of image restoration by using the projections onto convex sets (POCS) to intra prediction which uses adaptively filtering based on the surrounding reconstructed pixel to predict blocks. The experimental results show that the average bit-rate reduction of 0.75% and PSNR gain improved of 0.119dB are achieved.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0825109-135313
Date25 August 2009
CreatorsJian, Zhi-zhong
ContributorsI-Cheng Chang, Wen-Liang Hwang, Jian-Liang Lin, Tsang-Yi Wang
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0825109-135313
Rightswithheld, Copyright information available at source archive

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