Invention Grant
US09562857B2 Specular object scanner for measuring reflectance properties of objects
有权
用于测量物体的反射特性的镜面物体扫描仪
- Patent Title: Specular object scanner for measuring reflectance properties of objects
- Patent Title (中): 用于测量物体的反射特性的镜面物体扫描仪
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Application No.: US14212751Application Date: 2014-03-14
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Publication No.: US09562857B2Publication Date: 2017-02-07
- Inventor: Paul E. Debevec , Xueming Yu , Graham Leslie Fyffe , Abhijeet Ghosh
- Applicant: Paul E. Debevec , Xueming Yu , Graham Leslie Fyffe , Abhijeet Ghosh
- Applicant Address: US CA Los Angeles
- Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
- Current Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
- Current Assignee Address: US CA Los Angeles
- Agency: McDermott Will & Emery LLP
- Main IPC: G01N21/55
- IPC: G01N21/55 ; G01B11/30 ; G01B11/25

Abstract:
An apparatus to measure surface orientation maps of an object may include a light source that is configured to illuminate the object with a controllable field of illumination. One or more cameras may be configured to capture at least one image of the object. A processor may be configured to process the image(s) to extract the reflectance properties of the object including an albedo, a reflection vector, a roughness, and/or anisotropy parameters of a specular reflectance lobe associated with the object. The controllable field of illumination may include limited-order Spherical Harmonics (SH) and Fourier Series (FS) illumination patterns with substantially similar polarization. The SH and FS illumination patterns are used with different light sources.
Public/Granted literature
- US20140268160A1 SPECULAR OBJECT SCANNER FOR MEASURING REFLECTANCE PROPERTIES OF OBJECTS Public/Granted day:2014-09-18
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