A Method for Finding Pairs of Anti-Parallel Linear Features

Abstract

A method for finding anti-parallel straight edges is presented and discussed. This method is based on information about the object sides of edges, the similarity and homogeneity of gray level between the edges, the angle difference, the amount of overlap, and also information about the estimated object gray level. Two figures of merit are defined to calculate the mutual support of two antiparallel linear features. Examples are shown of applying the method to high resolution aerial photographs. Results indicate that cultural features such as roads and buildings can be extracted and that a significant reduction in the complexity of the image description can be obtained. This algorithm should be especially useful in a relaxation type scheme for classifying linear feature segments when the degree of anti-parallelism of the segments is needed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1980
Accession Number
ADA109560

Entities

People

  • Azriel Rosenfeld
  • Mohamad Tavakoli

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Aerial Photographs
  • Algorithms
  • Artificial Intelligence
  • Change Detection
  • Computer Vision
  • Data Sets
  • Detection
  • Figure Of Merit
  • High Resolution
  • Histograms
  • Homogeneity
  • Image Processing
  • Images
  • Night Vision
  • Pattern Recognition
  • Photographs
  • Recognition

Readers

  • Applied Combinatorial Optimization and Logic Circuit Design.
  • Geodesy
  • Regression Analysis.