2013 Fiscal Year Final Research Report
Color Information Restoration by the Hue-Space Sparse Representations and Soft-Decision
| Project/Area Number |
23560441
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
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| Research Institution | Niigata University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 画像復元 / スパース表現 / 圧縮標本化 / 映像符号化 / 色彩類似度 |
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| Research Abstract |
This project aimed at the improvement in the restoration of color signals for digital imaging. A sparse representation was employed in the hue space. The reconstructed/decoded quality stays around 30dB in PSNR for still-imaging and video decoding of intra-frames, while the one-fifth data is enough to reproduce the quality level comparable to the H.264/AVC. In addition, a color-tone similarity index was invented and was introduced into a new partial-reference (PR) image quality assessment (IQA). The PR IQA is competitive to the full-reference IQA in spite of much less data.
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