Method of detecting distance between vehicle and road traffic stone based on digital image

Abstract

The invention discloses a method of detecting the distance between a vehicle and a road traffic stone based on a digital image. The method adopts the following devices for acquiring the distance between the vehicle and the road traffic stone: an infrared laser transmitter, an infrared array camera and an MCU, wherein the infrared laser transmitter is used for transmitting infrared laser and infrared splines are projected on the road surface at two sides of the vehicle; the infrared array camera is used for photographing an image at the infrared laser projection place for enabling the MCU to analyze the distance between the vehicle and the road traffic stone; and the MCU is used for receiving image signals, recognizing the position of the road traffic stone and analyzing the distance between the vehicle and the road traffic stone. The method of detecting the distance between the vehicle and the road traffic stone based on the digital image comprises steps: image data of the infrared array camera are acquired; threshold segmentation is carried out on the acquired image; morphological processing is carried out on the image after threshold segmentation, and the center line of the image is extracted; the coordinate position of the road traffic stone in the image is recognized; and the position of the road traffic stone in a vehicle coordinate system is calculated, and the distance between the vehicle and the road traffic stone is calculated.

Description

technical field [0001] The invention belongs to the technical field of machine vision, in particular to a method for the distance between a car and a curb based on a digital image. Background technique [0002] With the increase of the number of automobiles in our country, people pay more and more attention to the safe driving technology of automobiles. Due to the limitation of the driver's field of vision from the cockpit, the driver generally cannot directly observe objects on the left and right sides of the vehicle. For novice drivers, when the vehicle is driving on both sides of the road, it is easy to cause the vehicle to collide with the curb due to inaccurate judgment, thereby causing damage to the vehicle and the road. [0003] Currently, many vehicles are equipped with lane departure warning systems based on digital image processing technology. This type of system device can detect the spatial relationship between the vehicle and the road markings, and warn the dr...

AI Technical Summary

Problems solved by technology

However, this type of system has high requirements on the road environment, especially when the road markings are not clear enough, or the atmospheric visibility is poor, the system is prone to failure

And this type of system only detects the information in front of the vehicle, and cannot directly give the distance between the sides of the vehicle and the curb

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