Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF4 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 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 recognition

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Examples

Experimental program
Comparison scheme
Effect test

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06T5/00G06K9/00
CPCG06V40/1318G06T5/80
Inventor 李健易业昌杨月元
Owner 深圳市麦极客图像技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com