@inproceedings{sweeney2015computing,
  title={Computing Similarity Transformations from Only Image Correspondences},
  author={Sweeney, Chris and Kneip, Laurent and Hollerer, Tobias and Turk, matthew},
  booktitle={The IEEE Conference on Computer Vision and Pattern Recognition (CVPR)},
  pages={pp--3305},
  year={2015}
}