Optical-flow estimation for multichannel video sequences

Chun-Jen Tsai*, Aggelos K. Katsaggelos

*Corresponding author for this work

Research output: Contribution to journalConference article

1 Scopus citations

Abstract

This paper presents a technique for multichannel optical flow estimation. We combine the brightness constancy constraint with the relationship between optical flow fields and disparity fields in estimating optical flow fields by solving systems of linear equations. In this formulation, the so-called round-about compatibility constraint is used to ensure the coherence between optical flow fields and to pin down the tangential components of optical flow vectors which are undiscernible form the first order intensity derivatives. Since disparity information is used to assist optical flow estimation here, a reliable disparity field estimator is required. The disparity fields are recovered using a disparity space image technique. We also discuss the sensitivity of this technique when the essential parallel- axes camera configuration assumption is violated. Experiments show that the technique is very promising for practical applications.

Original languageEnglish
Pages (from-to)360-368
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3024
DOIs
StatePublished - 1 Dec 1997
EventVisual Communications and Image Processing '97 - San Jose, CA, United States
Duration: 12 Feb 199712 Feb 1997

Keywords

  • Disparity
  • Disparity space image
  • Multi-channel video sequences
  • Optical flow
  • Round-about compatibility

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