Invention Grant
- Patent Title: Disparity image stitching and visualization method based on multiple pairs of binocular cameras
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Application No.: US17283119Application Date: 2020-03-05
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Publication No.: US11350073B2Publication Date: 2022-05-31
- Inventor: Xin Fan , Risheng Liu , Zhuoxiao Li , Wei Zhong , Zhongxuan Luo
- Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
- Applicant Address: CN Liaoning
- Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
- Current Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
- Current Assignee Address: CN Liaoning
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: CN201911304513.0 20191217
- International Application: PCT/CN2020/077957 WO 20200305
- International Announcement: WO2021/120407 WO 20210624
- Main IPC: H04N13/156
- IPC: H04N13/156 ; H04N13/239 ; H04N13/246 ; G06T7/11 ; G06T7/80 ; H04N13/15

Abstract:
The present invention discloses a disparity image stitching and visualization method based on multiple pairs of binocular cameras. A calibration algorithm is used to solve the positional relationship between binocular cameras, and the prior information is used to solve a homography matrix between images; internal parameters and external parameters of the cameras are used to perform camera coordinate system transformation of depth images; the graph cut algorithm has high time complexity and depends on the number of nodes in a graph; the present invention divides the images into layers, and solutions are obtained layer by layer and iterated; then the homography matrix is used to perform image coordinate system transformation of the depth images, and a stitching seam is synthesized to realize seamless panoramic depth image stitching; and finally, depth information of a disparity image is superimposed on a visible light image.
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