Identification of Emotions From Facial Gestures in a Teaching Environment With the Use of Machine Learning Techniques

Educational models currently integrate a variety of technologies and computer applications that seek to improve learning environments. With this objective, information technologies have increasingly adapted to assume the role of educational assistants that support the teacher, the students, and the areas enrolled in educational quality. One of the technologies that are gaining strength in the academic field is computer vision, which is used to monitor and identify the state of mind of students during the teaching of a subject. To do this, machine learning algorithms monitor student gestures and classify them to identify the emotions they convey in a teaching environment. These systems allow the evaluation of emotional aspects, based on two main elements, the first is the generation of an image database with the emotions generated in a learning environment such as interest, commitment, boredom, concentration, relaxation, and enthusiasm. The second is an emotion recognition system, through the recognition of facial gestures using non-invasive techniques. This work applies techniques for the recognition and processing of facial gestures and the classification of emotions focused on learning. This system helps the tutor in a modality of face-to-face education and allows him to evaluate emotional aspects and not only cognitive ones. This arises from the need to create a base of images focused on the spontaneous learning of emotions since most of the works reviewed focus on these acted-out emotions.