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A Structured Light Based 3D Reconstruction Using Combined Circular Phase Shifting Patterns

Zhang, Yujia
http://rave.ohiolink.edu/etdc/view?acc_num=osu1546488253821736

Abstract Details

2019, Doctor of Philosophy, Ohio State University, Geodetic Science.
Coded structured light is one of the most effective and reliable techniques for surface reconstruction. With a calibrated projector-camera stereo system, a set of illuminating patterns are projected onto the scene by projector and the image is captured by the camera. The correspondences between projector and camera frames are calculated in the decoding process, which is used for triangulation and point cloud generation. Continuous phase shifting method is a well-known fringe projection technique for 3D scanning. A set of sinusoidal patterns showing variation of intensity or color are projected onto the surface. This proposal, introduces a novel circular phase shifting method to improve the decoding accuracy, without the trade-off between the processing speed and decoding accuracy. In the proposed approach, three-step circular phase shifting and absolute patterns are used for increasing the multiplicity since the circular patterns are coded in all directions. The stereo triangulation is more stable and accurate than line-plane intersection used in single axis structured light methods by reducing incorrect decoding errors. Robust gray patterns are applied to resolve the ambiguity resolution caused by reflectance discontinuities in the phase shifting decoding process.
Alper Yilmaz (Advisor)
Alan Saafeld (Committee Member)
Rongjun Qin (Committee Member)
P. Sadayappan (Other)
141 p.
Civil Engineering; Earth; Geography; Optics
Structured Light, 3D Reconstruction, Circular Phase Shifting, Projector-Camera Stereo System

Recommended Citations

Citations

  • Zhang, Y. (2019). A Structured Light Based 3D Reconstruction Using Combined Circular Phase Shifting Patterns [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1546488253821736

    APA Style (7th edition)

  • Zhang, Yujia. A Structured Light Based 3D Reconstruction Using Combined Circular Phase Shifting Patterns. 2019. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1546488253821736.

    MLA Style (8th edition)

  • Zhang, Yujia. "A Structured Light Based 3D Reconstruction Using Combined Circular Phase Shifting Patterns." Doctoral dissertation, Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1546488253821736

    Chicago Manual of Style (17th edition)

osu1546488253821736
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© 2019, some rights reserved.Creative Commons License A Structured Light Based 3D Reconstruction Using Combined Circular Phase Shifting Patterns by Yujia Zhang is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by The Ohio State University and OhioLINK.