Imaging distortion correction method and device, computer device and storage medium

A distortion correction and image distortion technology, which is applied in the field of image processing and can solve problems such as large barrel distortion, image inconsistency, and instability.

Active Publication Date: 2019-02-15
深圳市麦极客图像技术有限公司
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AI Technical Summary

Problems solved by technology

[0002] Today's fingerprint recognition under the optical screen of mobile phones uses wide-angle lens imaging to collect fingerprint information, but imaging with wide-angle lens optical modules will cause large barrel distortion, resulting in the image formed by the wide-angle lens optical module and the actual image without distortion. Inconsistent; In addition, the traditional method of man

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  • Imaging distortion correction method and device, computer device and storage medium
  • Imaging distortion correction method and device, computer device and storage medium
  • Imaging distortion correction method and device, computer device and storage medium

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Embodiment Construction

[0026] 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 some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] The imaging distortion correction method provided by this application can be applied in such as figure 1 In the application environment of , where the client (computer device / terminal device) communicates with the server through the network. The server calculates the theoretical image height according to the field of view, actual image height and distortion rate of the wide-angle lens; generates the first correction function according to the the...

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Abstract

The invention discloses an imaging distortion correction method and device, a computer device and a storage medium. The method comprises the following steps of calculating a theoretical image height when the image is zero distortion according to the field angle of view of a wide angle lens, the distortion rate of the wide angle lens and the actual image height after the image distortion formed bythe wide angle lens; generating a first correction function for correcting the distortion of the image formed by the wide angle lens according to the theoretical image height and the field angle of view; compensating a first correction function for obtaining a second correction function for correcting distortion of an image formed by an optical module of a wide angle lens, wherein the wide-angle lens optical module comprises a wide-angle lens; acquiring the image formed by the wide-angle lens optical module, and correcting the image formed by the wide-angle lens optical module by a second correction function. The invention can accurately correct the image formed by the optical module of the wide-angle lens, reduces the rejection rate and the recognition rate of the image when the image isrecognized, and improves the user experience.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an imaging distortion correction method, device, computer equipment and storage medium. Background technique [0002] Today's fingerprint recognition under the optical screen of mobile phones uses wide-angle lens imaging to collect fingerprint information, but imaging with wide-angle lens optical modules will cause large barrel distortion, resulting in the image formed by the wide-angle lens optical module and the actual image without distortion. Inconsistent; In addition, the traditional method of manually testing the distortion rate is manually operated, so the obtained distortion rate is inaccurate and unstable, so there is an urgent need for a method of correcting barrel distortion and measuring the distortion rate, so that the imaging of the wide-angle lens optical module It is consistent with the actual image without distortion, so as to facilitate better image matching or r...

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Application Information

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IPC IPC(8): G06T5/00G06K9/00
CPCG06T5/006G06V40/1318
Inventor 李健易业昌杨月元
Owner 深圳市麦极客图像技术有限公司
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