Fisheye image distortion correction method and device and virtual display system
A fisheye image, distortion correction technology, applied in the field of computer vision, can solve the problems of reduced field of view and incomplete image information.
Pending Publication Date: 2020-12-22
HANGZHOU HIKVISION DIGITAL TECH
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[0005]
In order to overcome the problem in the related art that the available field of view of the first fisheye camera is reduced and the image information in the corrected fisheye image is incomplete, the present disclosure provides a fisheye image distortion correction method, device and virtual display system
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[0110] Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.
[0111] figure 1 It is a flow chart of a fisheye image distortion correction method shown according to an exemplary embodiment, as shown in figure 1 As shown, the fisheye image distortion correction method includes the following steps.
[0112] Step 101: When correcting the image, acquire the first image captured by the first fisheye camera;
[0113] Step 102: According to the first proj...
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The invention provides a fisheye image distortion correction method and device and a virtual display system, and relates to the technical field of computer vision. The method comprises the steps of when an image is corrected, acquiring a first image shot by a first fisheye camera; projecting pixel points in the first image to imaging planes of a plurality of first virtual viewpoint cameras according to the first projection mapping relationship to obtain a plurality of first virtual viewpoint images; splicing the plurality of first virtual viewpoint images into a second image after the first image is corrected; obtaining a second image after the first image is corrected through the plurality of first virtual viewpoint cameras. Since the visual field range of the plurality of first virtual viewpoint cameras covers the visual field range of the first fisheye camera, when the corrected image of the first image is obtained through the plurality of first virtual viewpoint cameras, a part ofthe image in the first image does not need to be intercepted, the available visual field cannot be reduced, and in the obtained corrected second image, saved information is more complete.
Description
technical field [0001] The present disclosure relates to the technical field of computer vision, in particular to a fisheye image distortion correction method, device and virtual display system. Background technique [0002] With the development of computer vision technology, users have higher and higher requirements for the breadth of images that can be captured by cameras. However, the field of view of ordinary cameras is small, and the captured images cannot reflect the entirety of the captured scene as effectively as possible. information. Therefore, a fisheye camera with a large field of view came into being. A fisheye camera is a camera with a special ultra-wide-angle lens. Its field of view in any direction can reach more than 120°, and the shooting range is wider. However, due to the large angle of view of the fisheye camera, the refraction angle of the light is relatively large during the imaging process, and thus the generated fisheye image will be distorted. Th...
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Login to View More IPC IPC(8): G06T5/00G06T5/50
CPCG06T5/50G06T5/80
Inventor 温武超李佳宁宋江新毛慧浦世亮
Owner HANGZHOU HIKVISION DIGITAL TECH