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

Monocular localization in urban environments using road markings

A technology of monocular and positioning method, applied in road network navigator, using re-radiation, re-radiation of electromagnetic waves, etc., can solve the problems of high cost of LiDAR, lack of direct distance measurement, etc.

Pending Publication Date: 2018-12-04
HONDA MOTOR CO LTD
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, LiDAR may be cost-prohibitive for large range ranging applications
On the other hand, cameras, while low cost and light weight, present challenges for visual mapping, partly due to the lack of direct distance measurements
The challenge then becomes matching measurements to maps that can be constructed using different sensing modalities

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
  • Monocular localization in urban environments using road markings
  • Monocular localization in urban environments using road markings
  • Monocular localization in urban environments using road markings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The following include definitions of selected terms used herein. The definitions include various instances and / or forms of components that are within the scope of the term and can be used for implementation. Examples are not limiting.

[0019] As used herein, a "processor" processes signals and performs general calculations and arithmetic functions. Signals processed by a processor may include digital signals, data signals, computer instructions, processor instructions, messages, bits, bit streams, or other computations that may be received, transmitted, and / or detected.

[0020] As used herein, a "bus" means an interconnection fabric operatively connected to transfer data between computer components in a single or multiple systems. A bus may be a memory bus, a memory controller, a peripheral bus, an external bus, a crossbar switch, and / or a local bus, among others. The bus may also be a vehicle bus that interconnects vehicle internal components using protocols such ...

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 monocular localization in urban environments using road markings, in particular to methods and systems for monocular localization in urban environments. The method may generate an image from a camera at a pose. The method may receive a pre-generated map, and determine features from the generated image based on edge detection. The method may predict a pose of the camera based on at least the pre-generated map, and determine features from the predicted camera pose. Further, the method may determine a Chamfer distance based upon the determined features from the image andthe predicted camera pose, optimize the determined Chamfer distance based upon odometry information and epipolar geometry. Upon optimization, the method may determine an estimated camera pose.

Description

Background technique [0001] Autonomous vehicles have advanced significantly due to the expansion of perception, motion planning, and control, and / or the rise of perception technologies. For autonomous navigation, accurate positioning can be used. While a Global Positioning System ("GPS") may be used, in urban environments GPS systems may be affected by multipath effects. In GPS-challenged environments, alternative systems can be used for positioning. [0002] Localization can match sensor observations to a priori known maps. Maps can be generated by manual measurements or machine-mapped using different sensors. Cameras and light detection and ranging (“LiDAR”) are two common perception sensors. Since LiDAR generally provides accurate distance measurements, it can be used for mapping. A common approach might be to use LiDAR in the mapping and localization process. However, LiDAR can be cost-prohibitive for large-range ranging applications. On the other hand, cameras, whi...

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): G01C21/30G01S17/86G01S17/89
CPCG01C21/30G06T7/73G01S17/89G06T2207/30244G06T2207/30252G01S17/86G06T7/13
Inventor 陆彦黄嘉维陈奕廷B·海斯勒
Owner HONDA MOTOR CO 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