Camera module positioning method and system based on computer vision

A computer vision and camera module technology, applied in computing, image enhancement, image analysis, etc., can solve problems such as noise points and pixel resolution deviation, and achieve the effects of reducing errors, simple processing, and small amount of processing and compression

Pending Publication Date: 2020-06-30
精锐视觉智能科技(上海)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Solve the technical problems in the prior art such as deviations caused by uncertain noise points and pixel resolution effects

Method used

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  • Camera module positioning method and system based on computer vision
  • Camera module positioning method and system based on computer vision
  • Camera module positioning method and system based on computer vision

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Experimental program
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Embodiment 1

[0035] figure 1 It is a flow chart of a camera module positioning method based on computer vision provided by Embodiment 1 of the present invention, see figure 1 , the method includes the steps of:

[0036] S100. Collect the image of the camera module through the collection device; figure 2 It is a three-camera module image collected by a collection device such as a high-definition camera provided by Embodiment 1 of the present invention;

[0037] S200. Perform a preprocessing operation on the image;

[0038] S300. Segment the preprocessed image according to the module template parameters, and obtain the ROI of each shot;

[0039] S400. Preliminary fitting is performed on each lens ROI respectively to obtain respective circle centers, and map back to the original image;

[0040]S500. Determine the obtained coordinates of the fitted center point, and determine the error of the point according to the rules of adjacent points;

[0041] S600. Determine the composition of the...

Embodiment 2

[0079] An embodiment of the present invention provides a camera module positioning system based on computer vision, which is suitable for a camera module positioning method based on computer vision, see Figure 11 , the system includes: an image acquisition module 100, used to collect camera module images through an acquisition device; an image preprocessing module 200, connected to the image acquisition module 100, for performing a preprocessing operation on the image; an image segmentation module 300, connected to the image preprocessing module 200, used to segment the preprocessed image according to the module template parameters, and obtain the ROI of each shot; the preliminary fitting module 400, connected to the image segmentation module 300, using Preliminary fitting is performed on each lens ROI to obtain the respective centers of circles, and are mapped back to the original image; the adjacent point module 500 is determined, and the preliminary fitting module 400 is conn...

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Abstract

The invention discloses a camera module positioning method and system based on computer vision. The method comprises the steps of collecting a camera module image through a high-definition camera; preprocessing the image; segmenting the preprocessed image according to the module template parameters to obtain each lens ROI; carrying out preliminary fitting on each lens ROI to obtain respective circle centers, and mapping the circle centers back to the original image; determining the coordinates of the obtained fitted central point, and determining the error of the point according to the rule ofthe adjacent points; determining a loss function; and traversing in a certain direction according to the loss function, and adjusting the coordinate point to be the position with the minimum loss which can be obtained at present. According to the invention, the original image of the camera module is processed through computer vision, fitting is carried out by using the shape characteristics of the image, and the position of the fitted point is adjusted to a certain extent in combination with the precision requirement of detection, so that the error is reduced.

Description

technical field [0001] The invention relates to the field of camera module detection and positioning, in particular to a computer vision-based camera module positioning method and system. Background technique [0002] In the prior art, traditional computer vision technology is used for geometric position positioning. The specific steps are as follows: firstly, segment the collected image and obtain the ROI of each shot, and then fit the ROI to obtain the fitting center point. This method has the following problems: in the process of graphic fitting, due to uncertain noise points and pixel resolution, there may be certain deviations, which will also occur in the detection of high-precision camera modules. greater impact. Contents of the invention [0003] In order to solve the problems in the prior art, the present invention provides a camera module positioning method and system based on computer vision, which further accurately fits and positions the camera module. The t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/80G06T7/73G06T7/11G06T7/136G06T7/194G06T5/00
CPCG06T7/80G06T7/73G06T7/11G06T7/136G06T7/194G06T2207/10004G06T2207/10024G06T2207/20024G06T2207/30208G06T2207/20036G06T5/70
Inventor 孔庆杰
Owner 精锐视觉智能科技(上海)有限公司
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