Inverse Perspective of a Road from a Single Image

Abstract

A method is presented for reconstructing the geometry of a road from a single image of the road. The road is modeled as a space ribbon defined by a spine (centerline) and generators which are horizontal line segments cutting the spine at their midpoint at a normal angle. Properties of two neighboring generators of such a ribbon are examined, and it is found that if a generator is known, a neighbor is completely defined if one of its ends is known. The proposed method uses this property to reconstruct the visible part of the world road, by iteratively finding a series of generators. The proposed method is tested against a simple method which assumes that the ground is flat and against another method which uses vanishing points.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1986
Accession Number
ADA170979

Entities

People

  • Daniel Dementhon

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Algorithms
  • Artificial Intelligence
  • Automation
  • Autonomous Navigation
  • Autonomous Systems
  • Classification
  • Computer Vision
  • Computers
  • Contracts
  • Coordinate Systems
  • Engineering
  • Engineers
  • Geometry
  • Image Processing
  • Maryland
  • Security
  • Universities

Fields of Study

  • Mathematics

Readers

  • Approximation Theory.
  • Fluid Mechanics and Fluid Dynamics.
  • Geotechnical Engineering.

Technology Areas

  • Space