Invention Grant
- Patent Title: Digital fringe projection and multi-spectral polarization imaging for rapid 3D reconstruction
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Application No.: US18183005Application Date: 2023-03-13
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Publication No.: US11900624B2Publication Date: 2024-02-13
- Inventor: Stanley Pau , Rongguang Liang
- Applicant: Arizona Board of Regents on Behalf of the University of Arizona
- Applicant Address: US AZ Tucson
- Assignee: Arizona Board of Regents on Behalf of the University of Arizona
- Current Assignee: Arizona Board of Regents on Behalf of the University of Arizona
- Current Assignee Address: US AZ Tucson
- Agency: Perkins Coie LLP
- The original application number of the division: US16770793
- Main IPC: G06T7/521
- IPC: G06T7/521 ; G01B11/25 ; G06T17/00

Abstract:
Methods and systems are described that enable three-dimensional (3D) imaging of objects. One example system includes a light source that produces multiple light beams having specific spectral content and polarization states. The system also includes phase masks that modify the intensity or phase of the light, and projection optics that allow simultaneously projection of at least three fringe patterns onto an object having particular phase, polarization and spectral characteristics. The detection system includes a camera that simultaneously receives light associated with the at the fringe patterns upon reflection from the object, and a processing unit coupled to the camera unit that determines one or both of a phase or a depth information associated with the object. The system and associated methods can efficiency produce 2D images of the object and allow determination of characteristics such as surface profile. The disclosed systems and methods can be effectively implemented with moving objects.
Public/Granted literature
- US20230342959A1 DIGITAL FRINGE PROJECTION AND MULTI-SPECTRAL POLARIZATION IMAGING FOR RAPID 3D RECONSTRUCTION Public/Granted day:2023-10-26
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