Fixed time template matching

  • Authors:
  • Robert Finis Anderson;Haim Schweitzer

  • Affiliations:
  • Department of Computer Science, University of Texas at Dallas, Richardson, TX;Department of Computer Science, University of Texas at Dallas, Richardson, TX

  • Venue:
  • SMC'09 Proceedings of the 2009 IEEE international conference on Systems, Man and Cybernetics
  • Year:
  • 2009

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Abstract

The problem of finding a match for an image ('template') within a larger image is known as template matching. It is key to a variety of Computer Vision applications. Currently known template matching algorithms run in fixed time, or are guaranteed to find the best match. We present a novel algorithm which in many cases can guarantee that the best match is found. In other cases it finds a good approximation to the best match. This algorithm runs in fixed time (a.k.a. hard real time). It finds an optimal match very quickly when a good match exists.