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Title:
CHESS PIECE POSITIONING METHOD AND SYSTEM BASED ON MACHINE VISION, STORAGE MEDIUM, AND ROBOT
Document Type and Number:
WIPO Patent Application WO/2019/080229
Kind Code:
A1
Abstract:
A chess piece positioning method based on machine vision, used for positioning chess pieces on a chess board provided with flat markers, the method comprising: acquiring a video stream by means of a camera and collecting video image frames from the video stream (S100); performing image processing on the video image frames to identify flat markers (S200); and, on the basis of the flat markers and a pre-acquired internal reference matrix of the camera, calculating the position of a chess piece on the chess board relative to the markers, and thereby locating the position of the chess piece (S300). Also provided are a chess piece positioning system based on machine vision, a storage medium, and a robot. The system using the chess piece positioning method can be implemented without the need for a special circuit in the chess board, and there is also no need for data communication between the chessboard and the robot, so that arrangement is more convenient. The arrangement of the flat markers enables the robot to accurately identify the flat markers in a complex scene without suffering interference from the complex scene.

Inventors:
ZHANG FAN (CN)
Application Number:
PCT/CN2017/112210
Publication Date:
May 02, 2019
Filing Date:
November 21, 2017
Export Citation:
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Assignee:
NANJING AVATARMIND ROBOT TECH CO LTD (CN)
International Classes:
G06K9/32; G06K9/20; G06K9/46; G06T7/11; G06T7/80
Domestic Patent References:
WO2017077217A12017-05-11
Foreign References:
CN106924961A2017-07-07
CN107230234A2017-10-03
CN106920261A2017-07-04
CN106529531A2017-03-22
Attorney, Agent or Firm:
SHANGHAI SHUONEE INTELLECTUAL PROPERTY LAW OFFICE (CN)
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