Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Road surface type recognition method and device based on road surface outline and road surface image characteristics

A technology of image features and contour features, applied in character and pattern recognition, instruments, computer parts, etc., can solve the problems of limited recognition effect and inability to face road conditions, and achieve the goal of improving range and accuracy and increasing sample dimension Effect

Inactive Publication Date: 2012-12-19
CHANGCHUN UNIV OF SCI & TECH
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, road surface recognition using image recognition technology alone cannot face complex road conditions, and the recognition effect is limited.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Road surface type recognition method and device based on road surface outline and road surface image characteristics
  • Road surface type recognition method and device based on road surface outline and road surface image characteristics
  • Road surface type recognition method and device based on road surface outline and road surface image characteristics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The road surface type recognition method based on the road surface profile and road surface image features in the embodiment of the present invention analyzes the data of the horizontal speed and the vertical acceleration during the driving process of the vehicle, and combines image recognition technology to perform road surface recognition. Such as figure 1 As shown, the whole process needs to collect three data volumes, that is, the vertical acceleration data of the vehicle, the driving speed data and the road surface image data. The entire data processing process is also for the processing of these three data volumes.

[0041] The vertical acceleration data of the vehicle is mainly used to generate the vertical displacement data of the road surface that reflects the displacement of the road surface in the vertical direction, thereby forming the road surface profile. The driving speed of the vehicle is mainly used to generate the horizontal displacement data of the r...

Embodiment 2

[0134] The embodiment of the present invention also provides a road surface type recognition device based on spatial frequency, such as Figure 4 As shown, it is a schematic structural diagram of a road surface type identification device according to Embodiment 2 of the present invention, which includes:

[0135] Vertical acceleration data collection module 11, is used for collecting the vertical acceleration data of vehicle vertical direction;

[0136] The module may specifically be an acceleration sensor installed at any position on the vehicle. In this embodiment, it is preferably installed on the suspension of the vehicle.

[0137] Traveling speed data collection module 12, is used for collecting the traveling speed data of vehicle; This module can be the encoder device in the ABS anti-lock braking system, for the vehicle that does not have ABS anti-lock braking system, can set speed for another The detection device or the speed detection device provided by the car itsel...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a surface type recognition method and device based on road surface outline and road surface image characteristics. A road surface is recognized through analyzing data of a horizontal velocity in a vehicle running process and an acceleration in a vertical direction and combining with an image recognition technology by applying a classifier. The method and the device overcome the defects of the traditional method and device for recognizing the road surface by using road surface image data by introducing new road surface outline characteristic data comprising space frequency. Because the new road surface outline characteristic data comprising the space frequency is from complete road surface outline data, the road surface outline data is from motion data of vertical vibration generated by vehicle motion when a vehicle is in direct contact with the ground, thus road surface conditions are more directly reflected. Meanwhile, by combining with the road surface imagedata, the two types of data are fused to be used as input data of the classifier, thus quantity of the characteristic data is increased and the accuracy and the application range of the road surface recognition are greatly improved.

Description

technical field [0001] Embodiments of the present invention relate to a road surface type recognition method and device based on road surface contours and road surface image features, and in particular to a road surface type recognition technology during vehicle driving. Background technique [0002] Road surface recognition technology is of great significance to the safe driving and automatic driving of cars. Through the road surface recognition technology, the computer can actively judge the road surface, so as to adopt corresponding driving strategies to improve the comfort of passengers, save fuel, and avoid dangers in the process of driving. [0003] The road surface recognition technology in the prior art is mainly completed by image processing technology, and the collected road surface images are analyzed by image processing technology, so as to obtain the judgment result of the road surface type. [0004] However, the method of simply using image recognition has cer...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/66
Inventor 王世峰
Owner CHANGCHUN UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com