@article{estimationofcrowddensityapplyingwavelet,
  title = {Estimation of crowd density applying wavelet transform and machine learning},
  author = {Koki Nagao and Daichi Yanagisawa and Katsuhiro Nishinari},
  year = {2019},
  eprint = {1903.07806},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1903.07806v1},
}