Camera calibration method, device, electronic device and computer-readable storage medium
A camera calibration and identification technology, applied in computing, image analysis, image enhancement and other directions, can solve problems such as lack of versatility and high requirements for application scenarios
Active Publication Date: 2020-08-14
CHENGDU JOUAV AUTOMATION TECH
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However, relying on the constraints of special elements in the application scene to complete the camera self-calibration has high requirements for the application scene and is not universal
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0028] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
[0029] It should be noted that relative ter...
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The invention provides a camera calibration method, device, electronic equipment and computer-readable storage medium, and relates to the field of image processing of sports cameras. The camera calibration method includes: acquiring a plurality of moving images; the plurality of moving images are textured images collected when the camera moves on a preset trajectory; obtaining the fundamental matrix between any two images in the plurality of moving images; the fundamental matrix characterization The matching relationship of image feature points based on texture in any two images; according to all the fundamental matrices, obtain the calibration internal parameters of the camera; the calibration internal parameters are the target correction parameters of the image captured by the camera. Use moving images with textures, and then obtain the fundamental matrix between images and obtain the calibration internal parameters of the camera without depending on the scene, which increases the versatility of obtaining the calibration internal parameters of the camera; the calibration internal parameters are used for target correction of captured images , which reduces the error of the image in the post-processing process.
Description
technical field [0001] The present invention relates to the field of image processing of sports cameras, in particular to a camera calibration method, device, electronic equipment and computer-readable storage medium. Background technique [0002] In recent years, due to the development of computer vision-related technologies, image-based 2D / 3D scene acquisition technology has been applied in many fields, such as robot path navigation, image stitching, 3D reconstruction and other fields. Among them, the internal parameters of the camera, including the focal length of the camera and the principal point data, are the key parts for solving the mapping relationship between image coordinates and world coordinates. [0003] The method of obtaining camera internal parameters that is widely used now is to obtain a series of checkerboard images and use the "Zhang Zhengyou calibration" method to perform offline calibration on the images to obtain the internal parameters of the camera....
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IPC IPC(8): G06T7/80
CPCG06T7/80G06T2207/10004
Inventor 袁睿
Owner CHENGDU JOUAV AUTOMATION TECH