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Dirty image detection method, dirty image detection device, and dirty image detection mechanism

A technology of image detection and dirt, which is applied in the field of dirt detection, can solve the problems of poor lens detection stability and achieve the effect of improving detection efficiency

Active Publication Date: 2021-02-12
CHANGZHOU RAYTECH OPTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a dirty image detection method that can solve the problem of poor lens detection stability

Method used

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  • Dirty image detection method, dirty image detection device, and dirty image detection mechanism
  • Dirty image detection method, dirty image detection device, and dirty image detection mechanism
  • Dirty image detection method, dirty image detection device, and dirty image detection mechanism

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no. 1 example

[0060] Based on the first embodiment of the present invention, the present invention proposes a second embodiment. figure 2 It shows a partial flow diagram of the dirty image detection method provided by the second embodiment of the present invention, and the following reference figure 2 The second embodiment of the present invention is described in detail.

[0061] S210: Calculate the center coordinates of the detection area.

[0062] It should be noted that, in this step, the central coordinates of the detection area are calculated through a vision algorithm. Optionally, the center coordinates of the detection area are calculated by a caliper algorithm.

[0063] The caliper algorithm first divides the detection area to form uniform blocks, then takes points in each divided block, and finally obtains a circle or line by means of circle fitting or straight line fitting, and finally obtains the detection area. center coordinates.

[0064] S220: Define the radius of the de...

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Abstract

The invention provides a dirty image detection method, a dirty image detection device, and a dirty image detection mechanism, wherein the method for collecting lens dirt includes acquiring an image of the lens to be detected, determining the range of the detection area based on the image, and determining the range of the detection area. The dirty particles are used to determine the dirt in the detection area based on the dirty particles; the dirty image detection device includes an image acquisition unit, a first processing unit, a second processing unit and a detection unit. The dirty image detection method and the dirty image detection device provided by the present invention can stably and objectively detect the dirty particles on the lens without manual operation, greatly improving the dirty detection efficiency.

Description

technical field [0001] The invention relates to the technical field of dirt detection, in particular to a dirty image detection method, a dirty image detection device and a dirty image detection mechanism. Background technique [0002] Mobile phone lens refers to an optical element made of lens and used for shooting. In the lens production process, there will always be dirt on the surface of the lens of the mobile phone due to direct or indirect contact, which will affect the shooting effect of the mobile phone. Therefore, it is an indispensable process for the dirty detection of the lens. [0003] In the prior art, the detection of dirt mainly relies on manual identification under a high-power microscope, which has a large workload and a certain degree of subjective awareness, which affects the stability of lens detection. Contents of the invention [0004] Based on this, it is necessary to provide a dirty image detection method that can solve the problem of poor lens d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/11G06T5/00
CPCG06T7/0002G06T7/11G06T2207/10004G06T5/90
Inventor 罗涛
Owner CHANGZHOU RAYTECH OPTRONICS CO LTD