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Method, system and device for determining internal reference error of camera and storage medium

A camera and error technology, used in image analysis, image enhancement, instrumentation, etc., can solve the problem of not suitable for rapid screening of unqualified cameras, and achieve the effect of fast processing speed and low difficulty

Active Publication Date: 2021-09-07
GUANGZHOU WERIDE TECH LTD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to overcome at least one defect of the above-mentioned prior art, and provides a method, system, device and storage medium for determining camera internal reference errors, which are used to solve the problem that the traditional camera calibration method is not suitable for quickly screening unqualified cameras on the production line. camera problem

Method used

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  • Method, system and device for determining internal reference error of camera and storage medium
  • Method, system and device for determining internal reference error of camera and storage medium
  • Method, system and device for determining internal reference error of camera and storage medium

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Embodiment 2

[0088] Based on the same ideas as those of the foregoing embodiments, this embodiment provides a system for determining camera internal reference errors, which is used for screening cameras with problems. The problematic camera refers to the camera whose internal parameters are greatly different from the actual internal design after the assembly is completed and after AA. Generally, the camera will correct the captured image according to its design internal reference. If the actual internal reference of the camera has a large difference in the design internal reference, the image captured by the camera will have a high degree of distortion, which does not meet the requirements for use.

[0089] Such as Figure 8 As shown, the system for determining the camera internal reference error includes:

[0090] An image acquisition module 100, configured to acquire an image of a reference object with geometric constraints captured by the camera;

[0091] The feature calculation modul...

Embodiment 3

[0109] Based on the same idea as the previous embodiment, this embodiment also provides a computer device, including a memory and a processor, the memory stores a computer program, and the processor implements the determination described in Embodiment 1 when executing the computer program The method for camera internal reference error has corresponding functions and beneficial effects.

Embodiment 4

[0111] Based on the same idea as the previous embodiment, this embodiment also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method for determining the camera internal reference error described in Embodiment 1 is implemented. , with corresponding functions and beneficial effects.

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Abstract

The invention provides a method, a system, equipment and a medium for determining an internal reference error of a camera, and the method comprises the steps: shooting a reference object with geometric constraints through a camera, and obtaining an image of the reference object; calculating the features of the image according to the image and the design internal reference of the camera; a degree to which a feature of the image complies with a geometric constraint of the reference being determined to determine an error of an actual internal reference participating in the camera within a design of the camera. According to the method provided by the invention, the limited data set of the image is obtained from the shot reference object image, the characteristics of the image are calculated based on the limited data set, and the error of the design of the camera participating in the actual internal reference is determined by using the geometric constraint of the reference object and the characteristics of the image. The method is high in processing speed and low in difficulty, does not need to carry out calibration by using professional equipment, and can rapidly and preliminarily screen out a camera with a problem.

Description

technical field [0001] The present invention relates to the field of camera detection, and more specifically, to a method, system, device and storage medium for determining camera internal reference errors. Background technique [0002] In the production process of the camera module, the parts of the camera module are prone to slight errors in the process of assembly and combination, and the accumulation of multiple errors will have a certain impact on the camera. active calibration) process. Generally speaking, the actual internal parameters (internal parameter matrix and distortion coefficient) of the camera module after AA will not differ much from the design internal parameters of the camera module, with some fluctuations. If the actual internal parameters after AA are too different, then It indicates that there is a problem in the AA process of the camera module, and the camera module needs to be quickly detected and eliminated on the production line. Among them, the ...

Claims

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Application Information

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IPC IPC(8): G06T7/80G06T5/00
CPCG06T7/80G06T2207/10004G06T5/80
Inventor 宋阳谢非徐立人韩旭
Owner GUANGZHOU WERIDE TECH LTD CO
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