Pre-warning method and system for automobile parking door opening and based on image processing

An image processing and early warning system technology, applied in the direction of doors, vehicle components, vehicle safety arrangements, etc., can solve problems such as poor accuracy, missed judgments, and misjudgment of early warning systems, and achieve high stability, convenient installation, and easy implementation. Effect

Inactive Publication Date: 2018-02-02
SHANGHAI UNIV OF ENG SCI
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AI Technical Summary

Problems solved by technology

[0004] The invention provides an image processing-based early warning method and early warning system for opening the door of a car, which solves the problems of misjudgment, many missed judgments, and poor accuracy in the existing early warning system for parking and opening the door

Method used

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  • Pre-warning method and system for automobile parking door opening and based on image processing
  • Pre-warning method and system for automobile parking door opening and based on image processing
  • Pre-warning method and system for automobile parking door opening and based on image processing

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Embodiment Construction

[0046] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0047] like figure 1 As shown, the present invention proposes a kind of early warning method based on image processing and opening the door of automobile parking, comprising the following steps:

[0048] Step 1. Carry out target recognition and classification on the images in the early warning area, as follows:

[0049] Step Ⅰ, turn on the cameras set at the left and right rearview mirrors of the vehicle 1, and take video shots of the warning area;

[0050] Step II: Use the SIFT feature extraction method to extract the features of the targets in each frame of the video, and match them with the target templates pre-stored in the on-board computer of the vehicle 1. The target templates include vehicles, pedestrians and other types of objects ;

[0051] Step III. If the matching is successful, classify t...

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Abstract

The invention belongs to the technical field of automobile electronics, and discloses a pre-warning method for automobile parking door opening and based on image processing. The pre-warning method comprises the steps that target identification and classification are conducted on images in a pre-warning area; the moving speed of a target and the moving time of a target needed to collide with an automobile are calculated; and the moving time and the moving speed are compared with the pre-warning calibration time and speed of different categories of targets to determine whether pre-warning is issued or not. The pre-warning method for automobile parking door opening and based on image processing utilizes SIFT feature extraction technology to quickly identify vehicles and pedestrians and the like in the pre-warning area, the calculation speed is high, and stability is high; and the binocular vision ranging technology can be utilized to accurately measure the distance and collision time of the passed vehicles, pedestrians and the like with the automobile, the calculation amount is greatly optimized, environment information of the rear part of the automobile can be processed in real time,almost no delay occurs, and a reliable pre-warning system is provided for parking door opening.

Description

technical field [0001] The invention belongs to the technical field of automotive electronics, and in particular relates to an image processing-based early warning method and early warning system for opening a door when parking a car. Background technique [0002] With the improvement of living standards, the number of motor vehicles is also increasing, and almost every household has a vehicle, and the tools for people to travel have gradually changed from bicycles and walking to cars. The travel of automobiles brings great convenience to people's life, not only saves people's time and reduces the burden of people's travel, but the appearance of vehicles has increased the occurrence of traffic accidents. [0003] When the vehicle is parked on the side of the road, when the driver gets off the vehicle, it will often affect the passing vehicles, especially in the dark or other poor sight conditions. When the driver of the parked vehicle or the passenger opens the door to get ...

Claims

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Application Information

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IPC IPC(8): B60J5/04B60R21/013B60Q9/00
Inventor 徐国晟张伟伟吴训成
Owner SHANGHAI UNIV OF ENG SCI
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