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GPU-assisted high-resolution, real-time 3-D shape measurement
Optics Express (2006)
  • Song Zhang, Harvard University
  • Dale Royer
  • Shing-Tung Yau, Harvard University
This paper describes a Graphics Processing Unit (GPU)-assisted real-time three-dimensional shape measurement system. Our experiments demonstrated that the absolute coordinates calculation and rendering speed of a GPU is more than four times faster than that of a dual CPU workstation with the same graphics card. By implementing the GPU into our system, we realized simultaneous absolute coordinate acquisition, reconstruction and display at 30 frames per second with a resolution of approximately 266K points per frame. Moreover, a 2+1 phase-shifting algorithm was employed to alleviate the measurement error caused by motion. Applications of the system include medical imaging, manufacturing, entertainment, and security.
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This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Citation Information
Song Zhang, Dale Royer and Shing-Tung Yau. "GPU-assisted high-resolution, real-time 3-D shape measurement" Optics Express Vol. 14 Iss. 20 (2006)
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