Métodos para um sistema de animação facial baseado em aquisição estereoscópica

Abstract

Facial animation has been widely used in many areas of applications and entertainment, presenting high levels of details and technology. However, its implementation still demands lots of hard work from the producer team. Aiming at the adaptation of a stereoscopic system to a financial low cost facial animation system, this research covers animation subjects and their main principles, in order to use them on an animated face. Studies on face anatomy, such as bones and muscles, are considered important to enhance the facial animation results. Several paradigms are covered in order to demonstrate the actual stage of this computer graphic area. The main aspects of a stereoscopic system, which uses two images as reference, presented in this work, are focused on a method development for a facial animation system. This research is based on facial control points on a human face, which is 3D modeled using the box modeling technique. The 3D virtual face is used to apply an ending result of a facial expression or lip sync obtained from the methods of stereoscopy, association and interpolation. The use of the stereoscopy demonstrated to be an efficient technique to capture 3D coordinates from real faces and use them to develop a realistic facial animation. The re-use, portability, target morphing, and key frames are the main contributions of the use of the stereoscopy in a facial animation system.