3D Measurement of Specular Surfaces by Stereo Cameras and Display
| Project/Area Number |
20500170
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Perception information processing/Intelligent robotics
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| Research Institution | Ritsumeikan University |
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Principal Investigator |
XU Gang Ritsumeikan University, 情報理工学部, 教授 (90226374)
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| Co-Investigator(Renkei-kenkyūsha) |
FUKAI Hironobu 立命館大学, 情報理工学部, 助手 (50571585)
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| Research Collaborator |
YAMAZAKI Masaki 株式会社, 東芝・研究開発センター
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 計測工学 / 画像認識 / スマートセンサ / 応用光学 / 幾何学 / 鏡面反射 / 拡散反射 / 混合反射 / 3次元形状計測 / ステレオカメラ / ディスプレイ / プロジェクタ / 相位シフト |
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| Research Abstract |
In this research, we proposed a new approach to 3D reconstruction of specular surfaces by using a stereo head and a display, overcoming the previous technical limitation that only Lambertian surfaces can be reconstructed. By showing both horizontal and vertical phase shift on the display, we can determine the 3D position of every light ray coming from the display and reflected by the specular surface. And using the constraint that the angle of incidence equals the angle of reflection, we successfully determined the 3D position and normal of each specular surface point. In addition, we also proposed to treat both specular reflection and Lambertian reflection in a unified maximal likelihood framework using an additional projector, and verified its effectiveness. These results can be used in industrial metrology where specular metal parts are ubiquitous.
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Report
(4 results)
Research Products
(18 results)
