Invention Grant
US09509905B2 Extraction and representation of three-dimensional (3D) and bidirectional reflectance distribution function (BRDF) parameters from lighted image sequences 有权
从照明图像序列中提取和表示三维(3D)和双向反射分布函数(BRDF)参数

  • Patent Title: Extraction and representation of three-dimensional (3D) and bidirectional reflectance distribution function (BRDF) parameters from lighted image sequences
  • Patent Title (中): 从照明图像序列中提取和表示三维(3D)和双向反射分布函数(BRDF)参数
  • Application No.: US14108358
    Application Date: 2013-12-17
  • Publication No.: US09509905B2
    Publication Date: 2016-11-29
  • Inventor: Ariel GordonEhud Rivlin
  • Applicant: Google Inc.
  • Applicant Address: US CA Mountain View
  • Assignee: Google Inc.
  • Current Assignee: Google Inc.
  • Current Assignee Address: US CA Mountain View
  • Agency: McDonnell Boehnen Hulbert & Berghoff LLP
  • Main IPC: H04N5/232
  • IPC: H04N5/232 H04N5/235 G06T15/50
Extraction and representation of three-dimensional (3D) and bidirectional reflectance distribution function (BRDF) parameters from lighted image sequences
Abstract:
Methods and systems are provided that use images to determine lighting information for an object. A computing device can receive an image of the object. For a pixel of the image, the computing device can: apply a first lighting model to determine a first estimate of a bi-directional lighting function (BRDF) for the object at the pixel, apply a second lighting model to determine a second estimate of the BRDF for the object at the pixel, determine a third estimate of the BRDF based on the first and second estimates, and store the third estimate of the BRDF in lighting-storage data. The computing device can provide the lighting-storage data. The BRDF can utilize a number of lighting parameters, such as a normal vector and albedo, reflectivity, and roughness values.
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