Development of Gloss Evaluation Method for Metal using Patterned Area Illumination and Study of Estimation of Surface Roughness by the Method

Research Project

Project/Area Number	22760308
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Measurement engineering
Research Institution	Oshima National College of Maritime Technology
Principal Investigator	SUGINO Tadanori 大島商船高等専門学校, 情報工学科, 准教授 (90294529)
Project Period (FY)	2010 – 2011
Project Status	Completed (Fiscal Year 2011)
Budget Amount *help	¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000) Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords	光沢評価 / パターン照明 / 面型照明 / 画像処理 / 表面粗さ / 外観検査
Research Abstract	Metal surface with hairline which put a scratch in a certain direction has different gloss feeling at different point of view. We have developed a method to evaluate gloss of the metal surface, taking into account the anisotropy in a short period of time extensively in lighting with a black and white pattern. The developed method evaluates gloss including the anisotropy by rotating the black and white stripe pattern. In addition, it was found that there are a certain relationship between the gloss and the surface roughness.