Photometric Stereo and Shape-from-Shading with Surface Radiance Correction and Reflectance Property Estimation

2014 Fiscal Year Final Research Report

• Project/Area Number: 23500214
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Perception information processing/Intelligent robotics
• Research Institution: Kyushu University
• Principal Investigator: HARA Kenji 九州大学, 芸術工学研究科(研究院), 准教授 (50380712)
• Co-Investigator(Kenkyū-buntansha): INOUE Kohei 九州大学, 大学院芸術工学研究院, 准教授 (70325570)
• Co-Investigator(Renkei-kenkyūsha): URAHAMA Kiichi 九州大学, 大学院芸術工学研究院, 教授 (10150492)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: 照度差ステレオ / 陰影からの形状復元 / 反射パラメータ推定 / Oren-Nayarモデル

Outline of Final Research Achievements

The Lambertian reflectance model has been widely used in the field of computer vision and image processing to compactly model diffuse reflection. However, it is known that the observed reflections, especially on the rough surfaces, do not obey the Lambertian model closely. In the research, we extended the two standard Lambertian-based methods for photometric stereo and shape-from-shading to be applicable even to rough surfaces and to simultaneously estimate surface normals and diffuse reflectance property, respectively. Through experiments with synthetic and real images, we showed the validity of the two proposed methods.

Free Research Field

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