Method and device for correcting lens distortion

A lens distortion and lens technology, applied in the field of mobile devices, can solve the problems of lens distortion effect and quality, and achieve the effect of improving portability and reducing usage costs.

Inactive Publication Date: 2016-08-03
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and device for correcting lens distortion to solve the problem that the existing lens module needs to use add

Method used

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  • Method and device for correcting lens distortion
  • Method and device for correcting lens distortion
  • Method and device for correcting lens distortion

Examples

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Embodiment 1

[0040] A method for correcting lens distortion provided by an embodiment of the present invention is introduced in detail.

[0041] refer to Figure 4 , shows a flowchart of steps of a method for correcting lens distortion in an embodiment of the present invention.

[0042] Step 100, setting the field of view of the lens to a preset angle; wherein, when the field of view of the lens is the preset angle, the distortion type of the lens is pincushion distortion or barrel distortion.

[0043] When designing the lens, set the field of view of the lens to a large field of view. The aforementioned preset angle may be a large viewing angle, that is, a viewing angle exceeding 70 degrees or 80 degrees, for example, the preset angle may be greater than 100 degrees. The embodiment of the present invention does not limit the specific value of the preset angle, which may be determined according to actual requirements and software algorithms.

[0044] When setting the field of view of th...

Embodiment 2

[0062] A device for correcting lens distortion provided by an embodiment of the present invention is introduced in detail.

[0063] refer to Figure 7 , shows a schematic structural diagram of an apparatus for correcting lens distortion in an embodiment of the present invention.

[0064] The above device may include: a viewing angle setting module 200 and a correction module 202 . Wherein, the correction module 202 may include: an adjustment and addition module 2021 and an optimization simulation module 2022 .

[0065] The functions of each module and the relationship between each module are introduced in detail below.

[0066] The viewing angle setting module 200 is configured to set the viewing angle of the lens to a preset angle; wherein, when the viewing angle of the lens is a preset angle, the distortion type of the lens is pincushion distortion or barrel distortion.

[0067] Preferably, the aforementioned preset angle may be greater than 100 degrees.

[0068] The cor...

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Abstract

The present invention provides a method and device for correcting lens distortion. The method comprises a step of setting the viewing angle of a lens as a preset angle, wherein when the viewing angle of the lens is the preset angle, the distortion type of the lens is pincushion distortion or barrel distortion, and a step of correcting the distortion type of the lens into linear distortion from the pincushion distortion or barrel distortion. According to the technical scheme of the invention, the viewing angle of the lens is set as the preset angle, the easy capture of a wide range of scenery in shooting or video recording is satisfied, the distortion type of the lens is corrected into the linear distortion from the pincushion distortion or barrel distortion, the linear distortion can be corrected according to the image linear relation of the linear distortion further, and the influence of a lens distortion effect caused by reducing a large viewing angle on imaging quality is reduced. Additional accessories are not needed, the cost of use is reduced, and the portability of use is improved.

Description

technical field [0001] The invention relates to the technical field of mobile devices, in particular to a method and device for correcting lens distortion. Background technique [0002] At present, most mobile devices (including mobile phones and tablet computers) will be equipped with camera modules, through which the conversion between optical signals and electrical signals can be realized, and image information can be recorded and saved, so as to realize the functions of taking pictures and photographing. As the field of view of the camera module increases, the imaging distortion effect will increase significantly, and the image quality will be seriously affected. Therefore, the field of view of most camera modules is between 70° and 80°, and very few The field of view of the camera module exceeds 80°. As a result, when using mobile devices to take pictures or videos, the range of pictures that can be captured is often not enough to meet the needs of users. For example, ...

Claims

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Application Information

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IPC IPC(8): H04N5/208
Inventor 杨尚明
Owner VIVO MOBILE COMM CO LTD
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