Invention Grant
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
- Patent Title: Multiview face capture using polarized spherical gradient illumination
- Patent Title (中): 使用极化球面梯度照明的多视角人脸捕获
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Application No.: US13449729Application Date: 2012-04-18
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Publication No.: US09123116B2Publication Date: 2015-09-01
- Inventor: Paul E. Debevec , Abhijeet Ghosh , Graham Fyffe
- Applicant: Paul E. Debevec , Abhijeet Ghosh , Graham Fyffe
- 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: G06T7/00
- IPC: G06T7/00 ; H04N13/02 ; G06K9/00 ; G06K9/20

Abstract:
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.
Public/Granted literature
- US20120268571A1 MULTIVIEW FACE CAPTURE USING POLARIZED SPHERICAL GRADIENT ILLUMINATION Public/Granted day:2012-10-25
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