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Multi-camera calibration method for 3D panoramic parking

A multi-camera, three-dimensional calibration technology, which is applied in image analysis, image data processing, instruments, etc., can solve the problems that users require a two-dimensional panoramic parking camera calibration method to be complex and cumbersome, and the two-dimensional display mode cannot be satisfied.

Active Publication Date: 2016-02-10
微牌科技(浙江)有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] In view of this, the present invention addresses the deficiencies in the prior art, and its main purpose is to provide a multi-camera calibration method for three-dimensional panoramic parking, which can effectively solve the problem that the existing panoramic parking system cannot meet the requirements of the two-dimensional display mode. User requirements and the camera calibration method for 2D panoramic parking are complicated and cumbersome

Method used

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  • Multi-camera calibration method for 3D panoramic parking

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Embodiment Construction

[0045] Please refer to Figure 1 to Figure 4 Shown is the first preferred embodiment of the present invention, the first preferred embodiment provides a multi-camera calibration method for three-dimensional panoramic parking, including the following steps:

[0046] (1) Camera installation: such as figure 2 As shown, the front camera 11, the rear camera 12, the left camera 13 and the right camera 14 are respectively installed on the corresponding positions of the front, rear, left and right of the car, and the front camera 11, the rear camera 12, the left camera 13 and the The right camera 14 is all connected to the three-dimensional image data processing system 20 on the car, and the three-dimensional image data processing system 20 is integrated in the multimedia display system of the car, such as Figure 4 As shown, the three-dimensional image data processing system 20 includes an image acquisition module 21, a storage module 22, a three-dimensional image stitching control...

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Abstract

The invention discloses a multi-camera calibration method for 3D panoramic parking. According to the method, a 3D calibration object is placed in the angle-of-view areas of cameras sequentially according to preset distance and angle to obtain images, and the corresponding relationship between the pixels of the input images of the cameras and the actual environment is worked out; or, the 3D calibration object is placed in two overlapping areas to obtain a primary image, and the 3D calibration object is rotated by a fixed angle to obtain a secondary image. According to the invention, calibration of four cameras can be completed by placing the 3D calibration object four times or placing the 3D calibration object twice and rotating the 3D calibration object twice. An image spliced after calibration is a 3D image. The visual range is increased effectively, the image is not distorted, and users do not feel dizzy when viewing the image. The method of the invention is simple and convenient in operation. With the method, multiple cameras can be calibrated quickly, and convenience is brought to users.

Description

technical field [0001] The invention relates to the technology in the field of automotive electronics, in particular to a multi-camera calibration method for three-dimensional panoramic parking. Background technique [0002] In recent years, with the rapid development of the automobile industry and the continuous improvement of people's living standards, the number of automobiles in our country is increasing rapidly, and the proportion of non-professional automobile drivers among automobile drivers has also increased significantly. When reversing in crowded and narrow places such as streets, garages and parking lots, scratches are prone to occur due to the blind spots of conventional optical rearview mirrors. [0003] In order to solve the problem of the blind spot of the reversing perspective, a simple reversing rearview system was born. Through a camera installed at the rear of the vehicle body, the driver can see the image of a small area behind the vehicle body in the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 穆阳
Owner 微牌科技(浙江)有限公司
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