Markerless Augmented Reality with a Real-Time Affine Region Tracker

  • Authors:
  • Affiliations:
  • Venue:
  • ISAR '01 Proceedings of the IEEE and ACM International Symposium on Augmented Reality (ISAR'01)
  • Year:
  • 2001

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Abstract

We present a system for planar augmented reality basedon a new real-time affine region tracker. Instead of trackingfiducial points, we track planar local image patches, andbring these into complete correspondence, so a virtual texturecan directly be added to them. Moreover, the local imagepatches can be extracted in an invariant way, even withoutany a priori information from previous frames. Henceit is possible to use them as natural beacons, that can beused to recognize the scene and to identify the individualpatches. This results in a powerful system, that can workwithout artificial markers or fiducial points and with a minimalamount of user interference.