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

Travel route recognition device, and travel assistance system using same

A technology for driving roads and recognition devices, which is applied in the direction of measuring devices, character and pattern recognition, image data processing, etc., and can solve problems such as reduction

Inactive Publication Date: 2017-12-01
HITACHI AUTOMOTIVE SYST LTD
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the case of detecting white lines and curbs on the road based on information obtained from cameras and radars, it is known that the detection accuracy depends, for example, on light conditions such as reverse traffic, weather conditions (rain, fog, snow, etc.), road conditions, etc. Presence of objects (standing water, snowfall, surrounding trees, manholes, signs, etc.), shadows on the road, wear of white lines, interruptions of sidewalks and curbs, other objects entering the camera's field of view (windshield wipers, attached dirt and raindrops, etc.) and other factors (refer to Image 6 )

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
  • Travel route recognition device, and travel assistance system using same
  • Travel route recognition device, and travel assistance system using same
  • Travel route recognition device, and travel assistance system using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0029] figure 1 The system configuration of the driving assistance system according to Embodiment 1 to which the traveling road recognition device of the present invention is applied is schematically shown.

[0030] The driving assistance system 1 shown in the figure is installed in a vehicle V such as an automobile, for example, and mainly includes: a stereo camera device 11 composed of a plurality of (two in this embodiment) cameras; A traveling road recognition device 10 that recognizes a traveling road around the vehicle V from a plurality of images of the traveling road; device 16 and the like) a travel assistance control device 12 that assists the travel of the vehicle V.

[0031] The stereo camera device 11 is installed in front of the vehicle V near the upper portion of the windshield in front of the vehicle V, for example, and includes a left camera 11a and a right camera 11b as a pair of imaging units for capturing image information in front of the vehicle V. The ...

Embodiment approach 2

[0055] Figure 4 The internal configuration of Embodiment 2 of the traveling road recognition device of the present invention is shown. The travel road recognition device 10A of the second embodiment is mainly different from the travel road recognition device 10 of the above-mentioned first embodiment in the method of generating the distance image, and the other configurations are substantially the same as the travel road recognition device 10 of the first embodiment. Therefore, detailed descriptions of the same configuration as that of the traveling road recognition device 10 according to Embodiment 1 will be omitted below.

[0056] In Embodiment 2, if Figure 4 As shown, a camera (single-lens camera) 11aA is installed in the vehicle, and the driving road recognition device 10A is based on the time-sequential information in front of the vehicle acquired by the camera 11aA, for example, under conditions such as driving (that is, when the position of the vehicle changes). The...

Embodiment approach 3

[0063] Figure 5 The internal configuration of Embodiment 3 of the traveling road recognition device of the present invention is shown. The driving road recognition device 10B of the third embodiment differs from the driving road recognition devices 10 and 10A of the first and second embodiments above mainly in the method of generating distance images, and the other configurations are the same as those of the driving road recognition devices of the first and second embodiments. 10 and 10A are roughly the same. Therefore, detailed descriptions of the same configurations as those of the traveling road recognition devices 10 and 10A of the first and second embodiments will be omitted below.

[0064] In Embodiment 3, if Figure 5 As shown, one camera 11aB is installed in the vehicle, and a radar 11bB as a distance detection unit is installed in the front of the vehicle, etc., and the traveling road recognition device 10B is based on images of the subject area in front of the veh...

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

Provided are a travel route recognition device and a travel assistance system using the same, which are capable of precisely recognizing the positions of white lines and road boundaries even if, for example, there is a decrease in the accuracy of the detection of both white lines and road boundaries on the travel route. The direction of the travel route is estimated on the basis of the direction of a linear site included in an image obtained by imaging units, and the direction of the boundaries of a surface region included in a distance image comprising three-dimensional distance information generated on the basis of the images obtained by the imaging units or on the basis of distance information detected by the distance detection unit.

Description

technical field [0001] The present invention relates to a traveling road recognition device and a driving assistance system using the same, for example, relates to a traveling road recognition device which recognizes white lines and curbs of a traveling road around a vehicle and a driving assistance system using the same. Background technique [0002] In the prior art, based on information obtained from cameras and radars mounted on vehicles such as automobiles, detection of white lines and curbs (different from sidewalks, roadside strips, curbs, etc.) boundary), etc., and use the detection result in a driver's driving assistance system. As an example of such a system, it is known that, for example, when the vehicle approaches a white line and there is a possibility of leaving the lane (the lane in which the vehicle is driving), an alarm or the like is used to alert the driver, and furthermore, when it becomes unavoidable to leave the lane A system that automatically contro...

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
IPC IPC(8): G06T7/60G06T1/00G06V10/80
CPCG06T1/00G06T7/60G06V20/588G06V10/80G06F18/25G01C21/3602
Inventor 挂川晋司筒井隆的野春树竹村雅幸志磨健
Owner HITACHI AUTOMOTIVE SYST LTD
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