@inproceedings{li2015geometric,
  title={A geometric framework for stop sign detection},
  author={Li, Qi and Liang, Gongbo and Gong, Yongyi},
  booktitle={2015 IEEE China Summit and International Conference on Signal and Information Processing (ChinaSIP)},
  pages={258--262},
  year={2015},
  organization={IEEE}
}