CalibraTable
Sho Sakurai, Takuji Narumi, Yuki Ban, Tomohiro Tanikawa, Michitaka Hirose · 2015
The apparent volume of food in front of a diner influences his/her eating behavior. Previous studies have shown that the ratio of the size of the dish to the size of the food it contains has an effect on the estimated food volume and the amount of food consumed With this finding as our underlying basis, we constructed a tabletop system that projects virtual dishes around the food in order to change the assessed apparent food volume interactively. We hypothesized that the amount of food consumed can be influenced by the size of the dish according to the ratio of the size of the food to that of the virtual dish, and conducted an experiment to investigate the effect of the system. Our results indicate that the size of the virtual dish affects food volume estimation and the amount of food consumed at a single sitting even for equal amounts of food unconsciously, without loss of palatability and satisfaction. This enables us to use the system with any kind of food, and eliminates the need to use wearable devices. We also proposed some interaction scenario for controlling nutrient balance by changing the size of the virtual dishes.