Approximating optical flow within the MPEG-2 compressed domain

@article{Coimbra2005ApproximatingOF,
  title={Approximating optical flow within the MPEG-2 compressed domain},
  author={Miguel Tavares Coimbra and Mike Davies},
  journal={IEEE Transactions on Circuits and Systems for Video Technology},
  year={2005},
  volume={15},
  pages={103-107}
}
MPEG-2 compressed domain information, namely motion vectors and DCT coefficients, is filtered and manipulated to obtain a motion field using a two-dimensional (2-D) translational model. The results are compared to a popular optical flow method, more specifically the one presented by Lucas and Kanade (1981), revealing very good results. Our method provides a very fast motion estimation tool that can be useful for applications where algorithmic cost is critical, such as surveillance systems. All… CONTINUE READING

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