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Patent Searching and Data


Title:
METHOD, APPARATUS AND DEVICE FOR CORRECTING CALIBRATION PARAMETERS OF VIDEO CAMERA, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/041650
Kind Code:
A1
Abstract:
Disclosed in the present invention is a method for correcting calibration parameters of a video camera, comprising: after calibrating a video camera, calculating a theoretical coordinate of a marker by the coordinate of the marker in a photographic image according to internal parameters and external parameters; if the theoretical coordinate of the marker is not matched with the coordinate of the marker in a standard image, modifying the theoretical coordinate of the marker to be matched with the coordinate in the standard image; calculating by the modified theoretical coordinate of the marker according to the external parameters to obtain an adjusted coordinate; and calculating coordinate mapping parameters between the adjusted coordinate and the coordinate of the marker in the photographic image to replace the internal parameters of the video camera. Accordingly, also disclosed in the present invention are an apparatus and device for correcting calibration parameters of a video camera, and a storage medium. According to the present invention, correcting the calibration parameters of the video camera is implemented, the calibration error is reduced, and the effect of restoring the actual object image by the calibration parameters of the video camera is better.

Inventors:
YANG, Ming (No. 6, 4th Yunpu Road Huangpu Distric, Guangzhou Guangdong 0, 510530, CN)
Application Number:
CN2017/116730
Publication Date:
March 07, 2019
Filing Date:
December 17, 2017
Export Citation:
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Assignee:
GUANGZHOU SHIYUAN ELECTRONICS CO., LTD. (No. 6, 4th Yunpu Road Huangpu Distric, Guangzhou Guangdong 0, 510530, CN)
International Classes:
G06T7/80
Foreign References:
US20170188022A12017-06-29
CN105096317A2015-11-25
CN103942796A2014-07-23
CN107464266A2017-12-12
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (F6 Xijin Centre, 39 Lianhuachi East Rd. Haidian District, Beijing 6, 100036, CN)
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