Real-time rendering facial skin colours to enhance realism of virtual human

Abstract

The research on facial animation has grown very fast and become more realistic in term of 3D facial data since the laser scan and advance 3D tools can support for creating complex facial model. However, that approaches still lacking in term of facial expression based on emotional condition. Facial skin colour is one parameter that gives an effect to increase the realism of facial expression, since it’s closely related to the emotion which is happens inside the human. This research provides a new technique for facial animation to change the colour of facial skin for the avatar based on linear interpolation by referring to the previous works which are (Jung et al., 2009; Kyu-Ho and Tae-Yong, 2008; Nijdam, 2006), also describes facial animation and the emotion that is related to the facial skin changes like blushing, anger or even sadness. The result of colour generation is comparable to the real human expression; furthermore it’s also able to enhance the appearance of facial expression of the virtual human.