The Asymmetry of Image Registration and Its Application to Face Tracking

@article{Dedeoglu2007TheAO,
  title={The Asymmetry of Image Registration and Its Application to Face Tracking},
  author={G{\"o}ksel Dedeoglu and Takeo Kanade and Simon Baker},
  journal={IEEE Transactions on Pattern Analysis and Machine Intelligence},
  year={2007},
  volume={29}
}
Most image registration problems are formulated in an asymmetric fashion. Given a pair of images, one is implicitly or explicitly regarded as a template and warped onto the other to match as well as possible. In this paper, we focus on this seemingly arbitrary choice of the roles and reveal how it may lead to biased warp estimates in the presence of relative scaling. We present a principled way of selecting the template and explain why only the correct asymmetric form, with the potential… CONTINUE READING

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