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Lens distortion compensation method and device, and storage medium

A technology of lens distortion and compensation method, which is applied in TV, color TV parts, electrical components, etc., can solve the problems of resource loss, multiple human resources and time resources, etc.

Active Publication Date: 2020-04-21
华兴源创(成都)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the existing lens distortion compensation method needs to consume more human resources and time resources, and when the equipment is applied to the actual production line, it will cause a large loss of resources

Method used

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  • Lens distortion compensation method and device, and storage medium
  • Lens distortion compensation method and device, and storage medium

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Experimental program
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Embodiment 1

[0030] Embodiment 1 of the present invention provides a lens distortion compensation method. The method can be performed by a lens distortion compensation device, wherein the device can be implemented by software and / or hardware, and generally can be integrated in an image acquisition device (such as a camera, a camera, etc.), and is suitable for when the acquisition parameters of the image acquisition device change , re-determine the correction coefficient of the image acquisition device and perform distortion compensation on the image acquisition device based on the correction coefficient. figure 1 is a schematic flow chart of the lens distortion compensation method provided in Embodiment 1 of the present invention, as shown in figure 1 As shown, the method includes:

[0031] S110. Acquire current acquisition parameters of the image acquisition device, where the current acquisition parameters include lens parameters, aperture parameters, and distance parameters.

[0032] I...

Embodiment 2

[0045] Figure 4 It is a schematic flowchart of lens distortion compensation provided by Embodiment 2 of the present invention. In this embodiment, on the basis of the above-mentioned embodiments, the optimization of "determining the target correction coefficient surface of the image acquisition device according to the current acquisition parameters" is as follows: determining the current parameter class to which the current acquisition parameters belong; A correction coefficient surface corresponding to the current parameter class is obtained as a target correction coefficient surface of the image acquisition device.

[0046] Further, before the acquisition of the current acquisition parameters of the image acquisition device, it also includes: performing image acquisition under different acquisition parameters, so as to determine the brightness distortion surface corresponding to each acquisition parameter according to the acquired image; according to the brightness distorti...

Embodiment 3

[0062]Embodiment 3 of the present invention provides a lens distortion compensation device. The device can be implemented by software and / or hardware, and generally can be integrated in an image acquisition device (such as a camera, a camera, etc.), and is suitable for re-determining the correction coefficient of the image acquisition device and based on The correction coefficient performs distortion compensation on the image acquisition device. Image 6 The structural block diagram of the lens distortion compensation device provided for Embodiment 3 of the present invention, as shown in Image 6 As shown, the lens distortion compensation device includes a parameter acquisition module 301, a coefficient determination module 302 and a brightness compensation module 303, wherein,

[0063] A parameter acquisition module 301, configured to acquire current acquisition parameters of the image acquisition device, where the current acquisition parameters include lens parameters, aper...

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Abstract

The embodiment of the invention discloses a lens distortion compensation method and device, equipment and a storage medium. The lens distortion compensation method comprises the following steps: acquiring current acquisition parameters of image acquisition equipment, wherein the current acquisition parameters comprise a lens parameter, an aperture parameter and a distance parameter; determining atarget correction coefficient curved surface of the image acquisition equipment according to the current acquisition parameters; and performing brightness compensation on a to-be-compensated image acquired by the image acquisition equipment according to the target correction coefficient curved surface. According to the embodiment of the invention, when the acquisition parameters of the image acquisition equipment are changed; the correction coefficient of the image acquisition equipment under the current acquisition parameter can be obtained without carrying out flat field correction on the image acquisition equipment; the determination speed of the correction coefficient of the image acquisition equipment can be improved, the lens distortion compensation speed of the image acquisition equipment is further improved, and manpower and material resources consumed by lens distortion compensation of image acquisition parameters are reduced.

Description

technical field [0001] The present invention relates to the field of imaging technology, in particular to a lens distortion compensation method, device, equipment and storage medium. Background technique [0002] With the development of imaging technology, more and more devices will collect images through configured cameras to achieve certain functions, such as distance detection or security monitoring. [0003] Affected by optical factors, there will be certain distortions in the images captured by the camera. Among them, the representative one is that the brightness value will become smaller at the edge of the image captured by the camera. In order to solve this problem, the existing technology generally adopts The built-in software of the camera performs Flat-Field Calibration (FFC) on the camera. However, since the flat-field correction needs to collect images in a uniform light field, when the existing technology needs to perform flat-field correction on the camera con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/217
CPCH04N23/81
Inventor 车义永金玟徹李靖宇姚宪
Owner 华兴源创(成都)科技有限公司
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