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Multi-camera module calibration method and device, equipment and medium

A multi-camera calibration method technology, applied in image analysis, image data processing, instruments, etc., can solve problems such as inability to calibrate the angle between multi-camera modules, and achieve fast and accurate calibration effects

Pending Publication Date: 2022-07-12
昆山丘钛光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing technology is still unable to calibrate the angle between the multi-camera modules

Method used

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  • Multi-camera module calibration method and device, equipment and medium
  • Multi-camera module calibration method and device, equipment and medium
  • Multi-camera module calibration method and device, equipment and medium

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Embodiment Construction

[0036] By providing a method for calibrating a multi-camera module, the embodiments of the present application can realize rapid and accurate calibration of the multi-camera module.

[0037] The technical solutions of the embodiments of the present application are to solve the technical problem that multi-camera module calibration cannot be realized in the prior art, and the general idea is as follows:

[0038] A method for calibrating a multi-camera module, the multi-camera module includes a reference camera and m offset cameras, and there is an optical axis between the camera optical axis of each of the offset cameras and the camera optical axis of the reference camera. Included angle, m is a positive integer, and the method includes:

[0039] A first distance between the reference camera and a pre-configured calibration template is determined, wherein at the first distance, the center line of the preview image collected by the reference camera and the distance between the c...

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Abstract

The invention discloses a multi-camera module calibration method, device, equipment and medium, the multi-camera module comprises a reference camera and m offset cameras, an included angle is formed between the shooting optical axis of each offset camera and the shooting optical axis of the reference camera, m is a positive integer, and m is a positive integer; the method comprises the following steps: determining a first distance between the reference camera and a pre-configured calibration template; rotating a target camera within a preset rotation precision range, and determining a second distance between a central marking line of a preview image collected by the rotated target camera and a central marking line of the calibration template in the preview image; and calculating the deflection angle of the target camera relative to the reference camera according to the first distance and the second distance. According to the invention, rapid and accurate calibration of multiple camera modules can be realized.

Description

technical field [0001] The invention relates to the technical field of photography, and in particular, to a calibration method, device, equipment and medium for a multi-camera module. Background technique [0002] With the rise of the Internet of things (IOT) industry, people's demand for intelligent electronic devices is getting higher and higher. Intelligent electronic equipment generally includes multiple camera modules, so the market demand for multiple camera modules is also generally increasing. A multi-camera module is generally a combination of multiple camera modules through a certain structure, but there is an image plane angle between any two camera modules in the assembled multiple camera modules. The included angle refers to the included angle between the respective optical axes of any two camera modules. The included angle needs to be kept within a certain range, otherwise the quality of the multi-camera module will be affected. At present, the existing tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/80
CPCG06T7/85G06T2207/30244
Inventor 崔婷
Owner 昆山丘钛光电科技有限公司