Motion estimation using a complex-valued wavelet transform

@article{Magarey1998MotionEU,
  title={Motion estimation using a complex-valued wavelet transform},
  author={Julian Magarey and Nick G. Kingsbury},
  journal={IEEE Trans. Signal Processing},
  year={1998},
  volume={46},
  pages={1069-1084}
}
This paper describes a new motion estimation algorithm which is potentially useful for both computer vision and video compression applications. It is hierarchical in structure, using a separable 2-d Discrete Wavelet Transform (DWT) on each frame to eeciently construct a multiresolution pyramid of subimages. The DWT is based on a complex-valued pair of 4-tap FIR lters with Gabor-like characteristics. The resulting Complex DWT (CDWT) eeectively implements an analysis by an ensemble of Gabor-like… CONTINUE READING
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