A robust feature extraction algorithm based on class-Modular Image Principal Component Analysis for face verification. - José Francisco Pereira; Rafael M. Barreto; George D. C. Cavalcanti; Ing Ren Tsang (ICASSP, 2011)

L2-Norm metric learning applied to unconstrained face pair-matching. - Rafael M. Barreto; Tsang Ing Ren; George D. C. Cavalcanti (ICIP, 2012)

Real-Time Head Pose Estimation for Mobile Devices. - Euclides N. Arcoverde Neto; Rafael M. Barreto; Rafael M. Duarte; João Paulo Magalhães; Carlos A. C. M. Bastos; Tsang Ing Ren; George D. C. Cavalcanti (IDEAL, 2012)

MLPBoost: A combined AdaBoost / multi-layer perceptron network approach for face detection. - George D. C. Cavalcanti; João Paulo Magalhães; Rafael M. Barreto; Ing Ren Tsang (SMC, 2012)

Enhanced real-time head pose estimation system for mobile device. - Euclides N. Arcoverde Neto; Rafael M. Duarte; Rafael M. Barreto; João Paulo Magalhães; Carlos A. C. M. Bastos; Tsang Ing Ren; George D. C. Cavalcanti (Integr. Comput. Aided Eng., 2014)