Extraction of Mastication in Diet Based on Facial Deformation Pattern Descriptor

In this paper, we describe a method for extraction of mastication from image sequence. Mastication is the first step of eating and is very important. However, people do not need strong mastication muscle because the advancement of cooking and food processing technology makes soft foods. The weak mastication ability of recent human is about to become a serious problem. It will be a risk factor of many diseases. To prevent this, analysis method of mastication is essential. Several studies have been conducted in the research field, but those were not applicable to eating in daily life, because of the various restrictions. We proposed a mastication analysis method using only monocular camera. The key point is Facial Deformation Pattern Descriptor, FDPD which can represent a pattern of facial deformation. By using the FDPD, we could extract mastication from video successfully, and could develop some useful mastication analysis system for healthy eating life.