In April 2017, he got the habilitation as full Professor in Computer Engineering from the Italian Ministery of Education, University and Research (MIUR). His research interests are in the areas of Computer Vision, Pattern Recognition and Multimedia, in particular, he worked on Image Retrieval, 3D Objects Retrieval and Partitioning, Face Biometrics, Facial Expression and Emotion Recognition, Human Action Recognition, 3D Surface Descriptors and Deep Learning for Face Recognition.