A Method for Finding Pairs of Antiparallel Straight Lines

Ann Scher, Michael Shneier, Azriel Rosenfeld

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


A method of pairing antiparallel straight lines is presented and discussed. The pairing is based on the distance between the lines, the amount by which they overlap, and on whether or not other lines are interposed. Examples are shown of applying the method to highresolution aerial photographs. Results indicate that cultural features such as roads and buildings can be extracted and that a signficant reduction in the complexity of the image description can be obtained.

Original languageEnglish
Pages (from-to)316-323
Number of pages8
JournalIEEE Transactions on Pattern Analysis and Machine Intelligence
Issue number3
StatePublished - May 1982
Externally publishedYes


  • Antiparallel lines
  • image analysis
  • linear features
  • straight lines


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