@INPROCEEDINGS{IloKamKal:2007,
  author = {J. Ilonen and J.-K. Kamarainen and H. K{\"a}lvi{\"a}inen},
  title = {Fast extraction of multi-resolution {G}abor features},
  booktitle = {14th International Conference on Image Analysis and Processing},
  year = {2007},
  pages = {481--486},
  address = {Modena, Italy}
}