2010 Fiscal Year Final Research Report
Gonio spectral imaging of document materials adaptive to spatial gloss distributions
| Project/Area Number |
20700176
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Perception information processing/Intelligent robotics
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| Research Institution | National Research Institute of Police Science |
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Principal Investigator |
AKAO Yoshinori National Research Institute of Police Science, 法科学第四部, 主任研究官 (30356159)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 文書 / 偏角反射特性 / 画像計測 / 光沢 / センサプラニング |
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| Research Abstract |
A high dynamic range gonio-spectral imaging method was proposed by setting exposure conditions adaptive to the glossiness of samples. The dynamic range of intensity measurement was improved by six times by using the information of neighborhood of specular reflection region. The effectiveness of proposed method was confirmed by an image acquisition experiment. The optimization of measurement geometries provided a criterion that sampling intervals should be shorter than the FWHM of specular peak profile.
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