1. Gonzalez RC, Woods RE, Eddins SL. Digital image processing. Pearson Education India; 2004.
2. Shape analysis and classification: theory and practice;Costa,2000
3. Evaluation of a low-cost open-source gaze tracker;Agustin,2010
4. Eigen-based traffic sign recognition;Fleyeh;Intel Trans Syst,2011
5. Effective circle fitting for particle trajectories;Karimäki;Nucl Instrum Methods Phys Res Sect A: Accel Spectrometers Detectors Assoc Equip,1991