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

Specular object scanner for measuring reflectance properties of objects
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.
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