Field long-distance binocular camera rapid calibration method and device

By simplifying equipment and algorithms, GPS and laser line projectors are used for long-distance binocular camera calibration in the field, solving the problems of equipment portability and operation complexity, and achieving efficient skew angle correction and accuracy assessment.

CN121120798APending Publication Date: 2025-12-12CIVIL AVIATION FLIGHT UNIV OF CHINA
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511454522.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-13
Publication Date
2025-12-12

Smart Images

  • Figure CN121120798A_ABST
    Figure CN121120798A_ABST
Patent Text Reader

Abstract

The invention discloses a field long-distance binocular camera rapid calibration method and device, and the method comprises the following steps: (1) installing and debugging a binocular camera indoors, measuring the baseline distance of the binocular camera, and fixing the installation state of the binocular camera; (2) arranging positions of a binocular camera and a reference object in the field by setting a linear reference object to coincide with a longitudinal coordinate of a camera coordinate system; (3) simplifying a parameter correction algorithm, and reducing to-be-acquired parameters; (4) acquiring imaging information, and acquiring pixel coordinate information of a long-distance series linear reference object in imaging; (5) performing GPS distance measurement to obtain the actually measured distance from the binocular camera to the reference object; and (6) correcting deflection angle parameters. The device comprises a binocular camera, a laser demarcation device, GPS equipment and a computer. The method solves the problems that an existing field long-distance binocular camera calibration method is high in requirement for equipment, the equipment is not easy to carry, and operation is complex, and has reference significance for actual conditions.
Need to check novelty before this filing date? Find Prior Art