Method for measuring vehicle distance based on single eye machine vision

A technology of vehicle distance and machine vision, which is applied in the field of vehicle distance measurement, can solve the problem that the vehicle distance cannot be calculated at close range, and achieve the effect of simple structure, free installation position and small volume

Inactive Publication Date: 2008-10-08
SHANGHAI SICAR VEHICLE TECH DEV
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for measuring vehicle distance by using a single-camera image capture

Method used

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Embodiment Construction

[0021] The vehicle distance measurement method based on monocular machine vision in the present invention adopts the existing single camera image capture system, image processing and analysis system and sound and light warning display system. The single-camera image capture system consists of one camera, usually installed in the center of the vehicle roof, responsible for collecting real-time image information and sending it to the image processing and analysis system. After the image processing and analysis system processes and calculates the received image, it obtains the vehicle distance value, and sends the value to the sound and light warning display system, so as to remind the driver to keep a safe distance through sound or image display.

[0022] Specific vehicle distance measurement method:

[0023] 1. First, the image capture system composed of a monocular camera is received to obtain two-dimensional image information. In this embodiment, the input image processing mo...

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Abstract

The invention relates to a vehicle distance measurement method based on the Monocular Camera Machine Vision. The method is consisted of an image capturing system adopting monocular camera and a multi-function image processing and analyzing system. The method starts from image information of the monocular camera image capturing system to process for the image information, uses an image recognition technology to extract and remedy to gain a size of standard object edge, reverses and rebuilds space information of the standard object according to the size of the standard object accounted in the image and a pre-calibration value, and processes to calculate a relative position of the standard object in the three-dimensional space, so as to realize the vehicle distance measurement. The invention solves problems that the existing monocular camera has a lower recognition rate for the whole vehicle contour and ground road logo line and needs to collect the image of the whole vehicle, has a large calculation, is not applicable to short distance, low speed and large vehicle flow situations.

Description

technical field [0001] The invention relates to a vehicle distance measurement method based on monocular machine vision. Background technique [0002] With the rapid popularization of electronic systems on vehicles and the continuous deepening of research and application of various active safety technologies, the requirements for the intelligence and automation of vehicles are also getting higher and higher. In particular, breakthroughs in technologies such as electronic brakes, automatic cruise, and electronic throttle have made it possible to realize automatic vehicle control. In this context, under high-speed conditions, maintaining a necessary safe distance for vehicles and maintaining a safe driving speed under a certain distance between vehicles is the key to ensuring safe and smooth roads and ensuring the safety of vehicles and personnel. At the same time, in low-speed congestion, the automatic driving technology that maintains a small fixed distance from the vehicle...

Claims

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Application Information

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IPC IPC(8): G01B11/14G01B11/02G06T5/00G06K9/36
CPCG06K9/00785G06V20/54
Inventor 邵萌唐大伟骆军王猛
Owner SHANGHAI SICAR VEHICLE TECH DEV
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