2015 Fiscal Year Final Research Report
Image Enhancement of cloth stain for forensic science
| Project/Area Number |
25330211
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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 |
Perceptual information processing
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| Research Institution | Ryukoku University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | スパースコーディング / 独立成分分析 / 近紫外LED |
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| Outline of Final Research Achievements |
The purpose of this study is to enhance the cloth stain by processing the images which are obtained under the white LED light and/or the black LED light.
Reducing the texture components is performed by evaluating the error image between the observed images and the image approximated by the sparse coding method. The sparse coding method is applied to the block images whose block size is determined based on the period of the texture component. The cube of the error between the processed image obtained under the white LED and the processed image obtained under the black LED are made to be uncorrelated by using the PCA ( Principle Component Analysis ) method, then the above result are made to be independent by using the ICA ( Independent Component Analysis ) method in which the independence is evaluated by the product of the kurtosis of the each components. The results of the computer experiments show the effectiveness of this method.
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| Free Research Field |
ディジタル画像処理
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