@article{hardwarebasedscaleandrotationinvariant,
  title = {Hardware based Scale- and Rotation-Invariant Feature Extraction: A Retrospective Analysis and Future Directions},
  author = {Shoaib Ehsan and Adrian F. Clark and Klaus D. McDonald-Maier},
  year = {2015},
  eprint = {1504.07962},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1504.07962v1},
}