1. Bong, D., Ting, K., Lai, K.: Integrated approach in the design of car park occupancy information system (COINS). IAENG Int. J. of Comp. Science 35(1), 7–14 (2009)
2. Dalal, N., Triggs, B.: Histograms of oriented gradients for human detection. In: Proc. Int. Conf. on Computer Vision and Pattern Recognition (CVPR), San Diego, California, USA, pp. 886–893 (2005)
3. Dan, N.: Parking management system and method (2003), http://www.patentlens.net/patentlens/patent/US_7062320/
4. Huang, C.C., Wang, S.J.: A hierarchical bayesian generation framework for vacant parking space detection. Transactions on Circuits and Systems for Video Technology 20(12), 1770–1785 (2010)
5. Huang, C.C., Wang, S.J., Chang, Y.J., Chen, T.: A bayesian hierarchical detection framework for parking space detection. In: Proc. Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP), Las Vegas, Nevada, USA, pp. 2097–2100 (2008)