研究生: |
Adhatus Solichah Ahmadiyah Adhatus - Solichah Ahmadiyah |
---|---|
論文名稱: |
New Algorithms for Perceptual-based Image Compression and Anaglyph Stereo Video Compression New Algorithms for Perceptual-based Image Compression and Anaglyph Stereo Video Compression |
指導教授: |
花凱龍
Kai-Lung Hua |
口試委員: |
Gee-Sern Hsu.
Gee-Sern Hsu. Wen-Huang Cheng Wen-Huang Cheng |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 資訊工程系 Department of Computer Science and Information Engineering |
論文出版年: | 2013 |
畢業學年度: | 101 |
語文別: | 英文 |
論文頁數: | 38 |
中文關鍵詞: | multitree 、perceptual 、anagyph 、stereo 、compression |
外文關鍵詞: | multitree, perceptual, bayer pattern |
相關次數: | 點閱:254 下載:4 |
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Compression is an important issue in digital applications as it can reduce the storage
size and minimize the bandwith usage for file transfer over networks. In this
document, two topics about compression is discussed. The first topic presents a
novel block-based image coding algorithm which integrates tree-structured multitree
dictionary and perceptual-based rate distortion optimization scheme. While
multitree dictionary is employed to support a very large number of different tilings,
perceptual-based rate distortion optimization utilizes the SSIM metric, instead of
popular MSE metric, to allocate bit rate according to human visual system. Experimental
results show that our proposed method outperforms many existing techniques
in both subjective and objective image quality measures. The second topic
presents two novel end-to-end stereo video compression pipelines consisting of
single-sensor digital camera pairs, the legacy consumer-grade video decoders,
and anaglyph displays. As 3D videos contain a large amount of data, efficient
compression methods to distribute streams over the current communication infrastructure
are highly required. We proposed two methods to transmit a single
encoded stream containing only required data to create anaglyph video from
single-sensor camera pairs. The experimental results demonstrate the superior
performance of our proposed methods over the traditional one by achieving up to
4.66 dB improvement in terms of Composite PSNR.
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