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Title:
METHOD FOR MATCHING FEATURE POINTS OF THREE-CAMERA GROUP, MEASUREMENT METHOD AND THREE-DIMENSIONAL DETECTION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/171031
Kind Code:
A1
Abstract:
Disclosed are a method for matching feature points of a three-camera group, a measurement method and a three-dimensional detection apparatus, falling within the technical field of optical and electronic measurement. The measurement method comprises the following steps: b1. after image collection is completed, finding unique matching point groups corresponding to all the feature points in a reference image plane; b2. according to image coordinates of the unique matching point groups obtained in step b1, calculating spatial position coordinates of a viewed point; and b3. according to the spatial position coordinates, obtained in step b2, of the viewed point, forming three-dimensional point cloud data, creating a three-dimensional point cloud graph, and reproducing a three-dimensional stereoscopic image. The matching method and the measurement method have the following beneficial effects: first, universal and unique matching of a viewed point capable of being imaged on three cameras is realised; second, three-dimensional measurement of a viewed object is realised; third, three-dimensional perception and measurement are quickly realised; and fourth, fewer cameras are used, thereby reducing the application cost.

Inventors:
CAO, Liang (Room 209, Haidian Jiaoda Welfare HostelNo. 3 Shangyuan Village ,Gaoliangqiao Road, Haidian District, Beijing 9, 100089, CN)
ZHOU, Zhiqi (Room 209, Haidian Jiaoda Welfare HostelNo. 3 Shangyuan Village ,Gaoliangqiao Road, Haidian District, Beijing 9, 100089, CN)
YIN, Xing (Room 209, Haidian Jiaoda Welfare HostelNo. 3 Shangyuan Village ,Gaoliangqiao Road, Haidian District, Beijing 9, 100089, CN)
GONG, Ting (Room 209, Haidian Jiaoda Welfare HostelNo. 3 Shangyuan Village ,Gaoliangqiao Road, Haidian District, Beijing 9, 100089, CN)
Application Number:
CN2017/084814
Publication Date:
September 27, 2018
Filing Date:
May 18, 2017
Export Citation:
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Assignee:
BEIJING QINGYING MACHINE VISUAL TECHNOLOGY CO., LTD. (Room 209, Haidian Jiaoda Welfare HostelNo. 3 Shangyuan Village ,Gaoliangqiao Road, Haidian District, Beijing 9, 100089, CN)
International Classes:
G01B11/24; G06T3/00
Domestic Patent References:
WO2012078126A12012-06-14
Foreign References:
JP2005142765A2005-06-02
CN103743352A2014-04-23
CN105627926A2016-06-01
Other References:
REN, ZHONG ET AL.,: "Research on Trinocular Matching Methods for Stereo Vision", ROBOT, vol. 23, no. 5, 30 September 2001 (2001-09-30), pages 456 - 458
GUAN, YEPENG ET AL.,: "Trinocular Stereo Matching Algorithm Based on Correlation between Disparities and Baseline", CHINESE JOURNAL OF SCIENTIFIC INSTRUMENT, vol. 27, no. 11, 30 November 2006 (2006-11-30)
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (Room 1215-1218, Floor 12Left Bank Community No. 68 Beisihuanxilu,Haidian District, Beijing 0, 100080, CN)
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