Digital coding point and dynamic pose measurement method based on digital coding point

By designing a digital coding point with digital patterns and concentric circle patterns, combined with binocular stereo vision technology and convolutional neural network, the shortcomings of existing coding points in decoding speed, encoding capacity and recognition accuracy are solved, and faster and more accurate acquisition of object position information is achieved, suitable for complex dynamic scenarios.

CN119722729AActive Publication Date: 2025-03-28AVIC BEIJING INST OF AERONAUTICAL MATERIALS +1
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Patent Information

Application Number
CN202510238092.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2025-03-28
Estimated Expiration
2045-03-03

AI Technical Summary

Technical Problem

The existing coding points have shortcomings in decoding speed, encoding capacity, recognition accuracy and applications in complex dynamic scenarios, resulting in slow decoding speed, small encoding capacity, low recognition accuracy, and limited applications in complex dynamic scenarios.

Method used

A digital coding point is designed, which is a square sheet, including a first side with a gray background and a second side opposite to the first side. The first side is centered with a digital pattern and a concentric circle pattern. Through binocular stereoscopic vision technology combined with edge detection algorithms and convolutional neural networks, more accurate and fast identification of digital coding point centers is achieved.

Benefits of technology

Through the design of the digital coded point and the corresponding dynamic position measurement method, faster and more accurate object position information acquisition is achieved, the decoding speed and recognition accuracy of the coded point are improved, and the application ability in complex dynamic scenarios is enhanced.

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Abstract

The invention discloses a digital coding point and a dynamic pose measurement method based on the digital coding point, and the method comprises the steps: shooting a target image of a target object, the target image at each moment comprises the digital coding point, and the second surface of the digital coding point is in contact with the surface of the target object, the first surface is provided with a gray background, a digital pattern arranged in the middle and a concentric circle pattern, and the concentric circle pattern comprises a white circular ring and a black solid circle; extracting contours of the digital coding points from the image, identifying concentric circle patterns of the digital coding points based on the contours, and positioning center two-dimensional coordinates of the digital coding points according to the concentric circle patterns; determining a center three-dimensional coordinate in combination with the center two-dimensional coordinate and equipment parameters of the shooting equipment; and determining dynamic pose information of the target object according to the center three-dimensional coordinates of the plurality of images. According to the scheme, the contour of the concentric circle pattern is extracted from the image based on the digital coding points, accurate center identification of the digital coding points is realized, and dynamic pose information is better obtained based on the identified center.
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