Recovery of lost or erroneously received motion vectors

  • Authors:

  • Wai-Man Lam;Amy R. Reibman;Bede Liu

  • Affiliations:

  • Department of Electrical Engineering, Princeton University, NJ;AT&T Bell Laboratories, Holmdel, NJ;Department of Electrical Engineering, Princeton University, Princeton, NJ

  • Venue:
  • ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: image and multidimensional signal processing - Volume V
  • Year:
  • 1993

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Abstract

In motion compensated video coding, if motion vectors are lost or received with errors, not only will the current frame be corrupted, but also the errors will propagate to succeeding frames. The effects of errors can be further magnified by the fact that motion vectors are usually coded differentially. In this paper, we propose a technique using boundary matching to compensate for lost or erroneously received motion vectors. The new technique, called the Boundary Matching Algorithm, produces noticeably better results than those reported previously. We first assume the displaced frame differences have no error, then we relax this assumption later by proposing an algorithm which can recover both the missing displaced frame differences and the missing motion vectors.