发明授权
US09123116B2 Multiview face capture using polarized spherical gradient illumination
有权
使用极化球面梯度照明的多视角人脸捕获
- 专利标题: Multiview face capture using polarized spherical gradient illumination
- 专利标题(中): 使用极化球面梯度照明的多视角人脸捕获
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申请号: US13449729申请日: 2012-04-18
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公开(公告)号: US09123116B2公开(公告)日: 2015-09-01
- 发明人: Paul E. Debevec , Abhijeet Ghosh , Graham Fyffe
- 申请人: Paul E. Debevec , Abhijeet Ghosh , Graham Fyffe
- 申请人地址: US CA Los Angeles
- 专利权人: UNIVERSITY OF SOUTHERN CALIFORNIA
- 当前专利权人: UNIVERSITY OF SOUTHERN CALIFORNIA
- 当前专利权人地址: US CA Los Angeles
- 代理机构: McDermott Will & Emery LLP
- 主分类号: G06T7/00
- IPC分类号: G06T7/00 ; H04N13/02 ; G06K9/00 ; G06K9/20
摘要:
A multiview face capture system may acquire detailed facial geometry with high resolution diffuse and specular photometric information from multiple viewpoints. A lighting system may illuminate a face with polarized light from multiple directions. The light may be polarized substantially parallel to a reference axis during a parallel polarization mode of operation and substantially perpendicular to the reference axis during a perpendicular polarization mode of operation. Multiple cameras may each capture an image of the face along a materially different optical axis and have a linear polarizer configured to polarize light traveling along its optical axis in a direction that is substantially parallel to the reference axis. A controller may cause each of the cameras to capture an image of the face while the lighting system is in the parallel polarization mode of operation and again while the lighting system is in the perpendicular polarization mode of operation.
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