Analysis of Characteristics of Fluorescent Objects Using Spectral Images and Its Vision Application

2015 Fiscal Year Final Research Report

• Project/Area Number: 25540063
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Perceptual information processing
• Research Institution: Chiba University
• Principal Investigator: Tominaga Shoji 千葉大学, 大学院融合科学研究科(研究院), 特任研究員 (10103342)
• Co-Investigator(Kenkyū-buntansha): HORIUCHI Takahiko 千葉大学, 大学院融合科学研究科, 教授 (30272181) ; HIRAI Keita 千葉大学, 大学院融合科学研究科, 助教 (30583405)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 蛍光物体 / 分光画像 / 蛍光励起 / 蛍光感 / 蛍光分光特性

Outline of Final Research Achievements

This project aimed at developing the technology to analyze a variety of characteristics of fluorescent objects, such as the bispectral characteristic, the bidirectional characteristic, the appearance characteristic, and the interreflection characteristic.
First, we constructed a bispectrometer system for precise measurement of the bispectral characteristics of fluorescent objects, and a spectral imaging system using a camera and a LCT filter. Second, we developed a method to estimate the bispectral Donaldson matrices of fluorescent objects using two illuminant projections with continuous spectral-power distributions. Third, a method was proposed for measurement and modeling of bidirectional characteristics of fluorescent objects. Fourth, we evaluated appearance of fluorescent color based on visual experiment and analyzed the appearance difference from object color. Finally, we studied the interreflection phenomenon observed from closely apposed fluorescent objects.

Free Research Field

視覚情報学