1. X. Lu, “Image analysis for face recognition,” Personal notes, 36 (2003).
2. S. Gandhe, K. Talele, and A. Keskar, “Intelligent face recognition techniques: a comparative study,” Int J Graph Vis Image Process (GVIP) 7, 53–60 (2007).
3. A. K. Sao and B. Yegnanaarayana, “Template matching approach for pose problem in face verification,” in International Workshop on Multi-media Content Representation, Classification and Security (Springer, 2006) pp. 191–198.
4. S. G. Bhele, V. Mankar, et al., “A review paper on face recognition techniques,” International Journal of Advanced Research in Computer Engineering & Technology (IJARCET) 1, 339–346 (2012).
5. M. Tamilselvi and S. Karthikeyan, “A literature survey in face recognition techniques,” International Journal of Pure and Applied Mathematics 118, 831–849 (2018).