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DVS camera calibration method and device and computer storage medium

A camera calibration and camera technology, applied in the field of data processing, can solve problems such as lack of DVS camera calibration technology, DVS camera calibration methods, etc.

Pending Publication Date: 2021-09-14
深圳锐视智芯科技有限公司
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AI Technical Summary

Problems solved by technology

However, there is no calibration method for DVS cameras in the prior art, and the calibration technology for DVS cameras is still very lacking.

Method used

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  • DVS camera calibration method and device and computer storage medium
  • DVS camera calibration method and device and computer storage medium
  • DVS camera calibration method and device and computer storage medium

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Embodiment Construction

[0028] The embodiment of the present application provides a DVS camera calibration method, device and computer storage medium for calibrating the DVS camera.

[0029] see figure 1 One embodiment of the DVS camera calibration method in the embodiment of the present application includes:

[0030] 101. Obtain the DVS event of the calibration board based on the change of the light intensity of the calibration board;

[0031] The method of this embodiment can be applied to a DVS camera calibration device, which can be a computer device with a certain computing capability, and can be used for calibration of a dynamic vision sensor (DVS), that is, a DVS camera.

[0032] When the light intensity of the calibration plate changes, the DVS event of the calibration plate can be obtained based on the change of the light intensity of the calibration plate, so the DVS event can be used to represent the event of the change of the light intensity. To facilitate data processing, DVS events ma...

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Abstract

The embodiment of the invention discloses a DVS camera calibration method and device and a computer storage medium, which are used for calibrating a DVS camera. The method comprises the following steps: obtaining a DVS event of a calibration board based on the illumination intensity change of the calibration board, carrying out image reconstruction on the DVS event of the calibration board to obtain a reconstructed image of the calibration board, extracting an angular point of the reconstructed image from the reconstructed image and determining the coordinate of the angular point, constructing an imaging model of a DVS camera, and substituting the coordinate of the angular point into an expression, and obtaining a solution equation about the calibration parameters of the DVS camera, and solving the solution equation based on a nonlinear optimization method to obtain values of the calibration parameters of the DVS camera. Therefore, the embodiment of the invention provides an image reconstruction mode based on the DVS event and executes calculation of the calibration parameters of the DVS camera according to the reconstructed image obtained by image reconstruction, so that the DVS camera can obtain excellent shooting performance, and creative contribution is made to the calibration technology of the DVS camera.

Description

technical field [0001] The embodiment of the present application relates to the field of data processing, and in particular to a DVS camera calibration method, device and computer storage medium. Background technique [0002] In the image measurement process and machine vision applications, in order to determine the relationship between the three-dimensional geometric position of a point on the surface of a space object and its corresponding point in the image, it is necessary to establish a geometric model of the camera imaging, and these geometric model parameters are the calibration parameters of the camera . Under most conditions, these parameters must be obtained through experiments and calculations, and the process of solving the parameters is called camera calibration (or camera calibration). Whether it is in image measurement or machine vision applications, the calibration of calibration parameters is a very critical link. The accuracy of the calibration results and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/80G06T7/70G06F17/11
CPCG06T7/85G06T7/70G06F17/11
Inventor 尹程龙
Owner 深圳锐视智芯科技有限公司
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