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Calibration method, device, readable storage medium and system for image acquisition equipment

The technology of an image acquisition device and a calibration method, which is applied in the field of image processing, can solve the problems of low calibration efficiency and take a long time, and achieve the effect of shortening the calibration time and improving the calibration efficiency.

Active Publication Date: 2022-02-08
BEIJING EYECOOL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned orthodontic data obtained by the proportional mapping algorithm is an array with a large amount of data. It takes a long time to burn the orthodontic data into the image acquisition device, and the calibration efficiency is very low.

Method used

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  • Calibration method, device, readable storage medium and system for image acquisition equipment
  • Calibration method, device, readable storage medium and system for image acquisition equipment
  • Calibration method, device, readable storage medium and system for image acquisition equipment

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Embodiment 1

[0051] An embodiment of the present invention provides a calibration method for an image acquisition device.

[0052] The image acquisition device may be an optical sensor such as an optical prism or other devices capable of acquiring images. The execution subject of the embodiment of the present invention may be the upper computer of the image acquisition device. In the production process of image acquisition equipment, due to factors such as environmental errors or assembly errors, the optical path diagram of the produced image acquisition equipment usually has a certain degree of distortion. Before using the image acquisition device, carry out distortion calibration on the image acquisition device through the method provided by the embodiment of the present invention, and burn the calibrated classification data into the image acquisition device, so that the image can be subsequently imaged according to the classification data The image collected by the acquisition device i...

Embodiment 2

[0092] Such as Figure 5 As shown, a calibration device of an image acquisition device is used to implement the calibration method of the image acquisition device provided in the above-mentioned embodiment 1, and the device specifically includes:

[0093] An acquisition module 20, configured to acquire a distorted image of an image acquisition device;

[0094] Determining module 21, is used for determining the classification data of distorted image by pre-trained distortion classifier;

[0095] The burning module 22 is configured to burn the classification data into the image acquisition device, and automatically correct the distorted image according to the classification data.

[0096] The above-mentioned determining module 21 may include:

[0097] The identification unit is used to identify the image features of the distorted image through a pre-trained distortion classifier, and the image features include image size, tilt left inner angle and pincushion distortion radian;...

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Abstract

The present invention provides a calibration method, device, computer-readable storage medium and system for an image acquisition device, wherein the method includes: acquiring a distorted image of the image acquisition device; determining the classification data of the distorted image by a pre-trained distortion classifier ; Burn the classification data into the image acquisition device, and automatically correct the distorted image according to the classification data. The invention determines the classification data corresponding to the distorted image through the distortion classifier, and only burns the classification data into the image acquisition device. The classification data is the serial number corresponding to the distortion category to which the distorted image belongs. The time is very short, which shortens the calibration time and improves the calibration efficiency. Moreover, the pre-trained distortion classifier can distort and classify multiple frames of distorted images at the same time, realize parallel calibration of multiple image acquisition devices at the same time, realize batch calibration of image acquisition devices, and greatly improve the calibration efficiency of image acquisition devices.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a calibration method, device, readable storage medium and system for image acquisition equipment. Background technique [0002] In the process of producing image acquisition equipment, due to factors such as environmental errors or assembly errors, the optical path diagram of the image acquisition equipment is distorted. The images collected by the equipment are processed for orthodontics. [0003] Currently, there is a method for calibrating an image acquisition device in the related art, which includes: acquiring a distorted image on the image acquisition device, using a pre-set square grid image and the acquired distorted image, and obtaining the correction data through a proportional mapping algorithm . Burn the acquired correction data into the image acquisition device to complete the distortion calibration of the image acquisition device. [0004] The ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/80G06K9/62G06V10/774G06V10/764
CPCG06T7/80G06T2207/20081G06F18/24G06F18/214
Inventor 周军吴歌何笛
Owner BEIJING EYECOOL TECH CO LTD
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