1. Video analysis using corner motion statistics;Albiol,2009
2. Speeded-up robust features (SURF);Bay;Comput. Vis. Image Underst.,2008
3. Learning OpenCV: Computer Vision with the OpenCV Library;Bradski,2008
4. Unsupervised Bayesian detection of independent motion in crowds;Brostow,2006
5. Towards a robust solution to people counting;Celik,2006