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.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0825109-135313 |
| Date | 25 August 2009 |
| Creators | Jian, Zhi-zhong |
| Contributors | I-Cheng Chang, Wen-Liang Hwang, Jian-Liang Lin, Tsang-Yi Wang |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0825109-135313 |
| Rights | withheld, Copyright information available at source archive |
Page generated in 0.0017 seconds