Calibration system of RGB-D module, and equipment and method thereof

Abstract

The invention provides a calibration method for an RGB-D module, and the method comprises the steps: S1, enabling the RGB-D module to shoot and collect an RGB image and a Depth image, so as to calibrate the internal parameters and external parameters of the RGB-D module; S2, shooting and collecting an RGB-D image by the RGB-D module, and correcting parameters of the RGB-D module according to N different collection results; and S3, fusing the pixel-level parameters of the RGB module and the Depth module, and achieving the spatial calibration of the RGB-D module. The invention provides a calibration method of an RGB-D module. The RGB-D module is used for shooting and collecting an RGB image and a Depth image so as to calibrate internal parameters and external parameters of the RGB-D module,and the RGB-D module is used for shooting and collecting an RGB-D image to correct the parameters, so that alignment of the Depth module and the RGB module in a three-dimensional space is realized, and the shooting effect of the RGB-D module is optimized. The invention further provides a calibration system of the RGB-D module and calibration equipment for realizing the calibration method of the RGB-D module.

Description

technical field [0001] The invention relates to the technical field of photography, in particular to a multi-point focusing method and device. Background technique [0002] With the development of hardware computing, mobile terminals (such as mobile phones, tablet computers, etc.) have more and more rich and powerful shooting functions. At present, most mobile terminals are equipped with high-performance cameras, especially dual-camera, triple-camera The emergence of many RGB-D modules such as structured light+RGB and ToF+RGB on mobile terminals provides the possibility for users to improve the camera effect and experience as well as other extended applications. [0003] Traditional camera calibration methods are generally based on 2D plane target camera calibration (Zhang Zhengyou calibration method). Use the camera to shoot the same plane calibration plate at two or more different camera positions. Both the camera and the 2D plane calibration plate can move freely, and th...

AI Technical Summary

Problems solved by technology

However, for the calibration of depth images, the traditional 2D plane target camera calibration method is difficult to achieve effective depth calibration, which also limits the application development of mobile terminals with RGB-D modules on the market, which in turn limits RGB The rapid development of -D cameras in the consumer market

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