@inproceedings{efficientglobal2d3dmatchingforcamera,
  title = {Efficient Global 2D-3D Matching for Camera Localization in a Large-Scale 3D Map},
  author = {Liu Liu and Hongdong Li and Yuchao Dai},
  year = {2017},
  booktitle = {ICCV 2017 10},
  url = {http://openaccess.thecvf.com/content_iccv_2017/html/Liu_Efficient_Global_2D-3D_ICCV_2017_paper.html},
}