High-precision dynamic real-time 360-degree omnidirectional point cloud acquisition method based on fringe projection

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PATENT NO 11961244
SERIAL NO

17769230

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Abstract

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Disclosed is a high-precision dynamic real-time 360-degree omnidirectional point cloud acquisition method based on fringe projection. The method comprises: firstly, by means of the fringe projection technology based on a stereoscopic phase unwrapping method, and with the assistance of an adaptive dynamic depth constraint mechanism, acquiring high-precision three-dimensional (3D) data of an object in real time without any additional auxiliary fringe pattern; and then, after a two-dimensional (2D) matching points optimized by the means of corresponding 3D information is rapidly acquired, by means of a two-thread parallel mechanism, carrying out coarse registration based on Simultaneous Localization and Mapping (SLAM) technology and fine registration based on Iterative Closest Point (ICP) technology. By means of the invention, low-cost, high-speed, high-precision, unconstrained and rapid-feedback omnidirectional 3D real-time molding becomes possible, and a new gate is opened into the fields of 360-degree workpiece 3D surface defect detection, rapid reverse forming, etc.

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Patent Owner(s)

  • NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Qian Nanjing, CN 371 1372
Feng, Shijie Nanjing, CN 14 14
Hu, Yan Nanjing, CN 64 252
Liu, Kai Nanjing, CN 706 6610
Qian, Jiaming Nanjing, CN 3 0
Tao, Tianyang Nanjing, CN 2 0
Wang, Jiaye Nanjing, CN 1 0
Wu, Shuaijie Nanjing, CN 1 0
Xu, Mingzhu Nanjing, CN 3 0
Yin, Wei Nanjing, CN 77 284
Zhang, Liang Nanjing, CN 628 3159
Zuo, Chao Nanjing, CN 21 19

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