Method of and apparatus for producing road information

A road information and road technology, applied in two-dimensional position/channel control, image enhancement, image analysis, etc., can solve problems such as detecting road surfaces

Inactive Publication Date: 2010-03-31
TELE ATLAS BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, due to the resolution of aerial orthorectified images and the strongly varying illumination of road surfaces due to shadows, it is difficult to detect road surfaces with the aid of color-based segmentation algorithms

Method used

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  • Method of and apparatus for producing road information
  • Method of and apparatus for producing road information
  • Method of and apparatus for producing road information

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Embodiment Construction

[0075] figure 1 Shows the MMS system in the form of a car 1. The car 1 has one or more cameras 9(i), i=1, 2, 3, . . . Car 1 can be driven by a driver along a road of interest.

[0076] Motor vehicle 1 has a plurality of wheels 2 . Furthermore, the motor vehicle 1 has a high-precision position determination device. Such as figure 1 As shown in , the position determination device includes the following components:

[0077] • A GPS (Global Positioning System) unit connected to the antenna 8 and arranged to communicate with a number of satellites SLi (i=1, 2, 3, . . . ) and to calculate position signals from the signals received from the satellites SLi. The GPS unit is connected to a microprocessor μP. Based on the signal received from the GPS unit, the microprocessor μP can determine an appropriate display signal to be displayed on the monitor 4 in the car 1, thereby informing the driver where the car is and that the car may be on the way. Which direction to go. Instead o...

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Abstract

The invention relates to a method of producing road information for use in a map database comprising: - acquiring a source image from an image sequence obtained by means of a terrestrial based cameramounted on a moving vehicle; - determining a road color sample from pixels associated with a predefined area in the source image representative of the road surface in front of or behind the moving vehicle; - generating a road surface image from the source image in dependence of the road color sample; and, - producing road information in dependence of the road surface image and position and orientation data associated with the source image.

Description

technical field [0001] The invention relates to a method for generating road information. The invention further relates to a device for generating road information, a computer program product and a processor-readable medium carrying the computer program product. Background technique [0002] A large amount of horizontal road information, such as lane dividers, road centerlines, road width, etc., needs to be collected for digital map databases used in navigation systems and similar systems. The geographic location of road information can be stored as absolute or relative location information. For example, the centerline can be stored as absolute geographic location information, and the road width can be stored as relative location information, and the relative location information is relative information relative to the absolute geographic location of the centerline. The road information can be obtained by interpreting high resolution aerial orthorectified imagery. These h...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G06T5/00G06T7/40G06K9/00G05D1/02
CPCG06T7/0083G06T2207/10016G06K9/00798G06T2207/30256G06T7/408G06T3/00G06T7/12G06T7/90G06V20/588
Inventor马尔钦·米夏尔·克米奇克卢卡什·彼得·塔博罗维斯基
OwnerTELE ATLAS BV