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Information fusion-based reversing radar image system

An imaging system and reversing radar technology, applied in the field of visual sensing, can solve the problems of low sensor stability and reliability, and achieve the effect of improving the obstacle detection rate and ranging accuracy, and improving the stability and accuracy.

Pending Publication Date: 2019-11-12
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] According to the technical problem that the obstacle detection of the traditional reversing radar system can only be represented by radar readings and the stability and reliability of a single sensor are low, a reversing radar imaging system based on information fusion is provided.

Method used

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  • Information fusion-based reversing radar image system

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Embodiment 1

[0036] Such as figure 2 Shown, as a preferred embodiment of the present invention, the system of the present invention works according to the following steps:

[0037] Step 1: Calibrate the wide-angle binocular camera installed at the rear of the car, obtain the internal and external parameters of the camera, and correct the binocular video frame images collected by the binocular camera.

[0038] Specifically, the binocular camera is used to shoot N (N>10) groups of checkerboards in different positions, and the checkerboard occupies more proportions in each picture as much as possible, and all corners of the checkerboard should be captured in each picture. Using Zhang Zhengyou’s calibration method to obtain binocular camera internal parameter matrices M1, M2, distortion parameter matrices D1, D2 and the rotation and translation matrices R and T between the two cameras, remove the influence of radial distortion and tangential distortion according to the distortion parameter ma...

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Abstract

The invention provides an information fusion-based reversing radar image system, which comprises a ranging unit, an information fusion unit and a prompting unit, wherein the ranging unit is used for obtaining obstacle distance information through a binocular ranging module and a radar ranging module separately; the information fusion unit is used for fusing the obstacle distance information obtained through the binocular ranging module and the radar ranging module to obtain final result information; and the prompting unit is used for carrying out voice prompting according to the final result information. According to the information fusion-based reversing radar image system, an ultrasonic reversing radar is combined with a binocular vision system, and reversing obstacle detection and ranging are achieved by using an information fusion technology, so that the defect of a single sensor is compensated and the obstacle detection rate and ranging accuracy rate are improved.

Description

technical field [0001] The invention relates to the technical field of visual sensing, in particular to a reversing radar image system based on information fusion. Background technique [0002] With the continuous development of the economy, the number of cars has increased year by year, which undoubtedly brings a lot of convenience to people's daily life, but it also brings a series of safety problems. Reversing is an important skill in car driving. Although there are rearview mirrors to assist in observing the surrounding environment, due to the existence of blind spots, the situation behind the car cannot be known by the rearview mirror. Installing a reversing assist device can effectively reduce the chance of reversing accidents. [0003] There are two main types of commonly used reversing auxiliary devices at present: the reversing probe and the reversing image. The reversing probe mainly includes ultrasonic radar, laser and other equipment. The signal emitted by the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/93G01S15/08G01S15/02G01C3/00B60Q9/00
CPCG01S15/08G01S15/931G01C3/00B60Q9/00
Inventor 毕胜栗欣宏
Owner DALIAN MARITIME UNIVERSITY
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