Conference 5–9 August 2012
Exhibition 7–9 August 2012
Los Angeles Convention Center

Magic Pot: Interactive Metamorphosis of the Perceived Shape

Los Angeles Convention Center, Concourse Foyer

Magic Pot is an interactive system that uses haptic illusion to change the perceived shape of a physical object. While research on haptic presentation often concerns active haptics, which aims to reproduce physical force feedback, recent work is focusing more on alternative approaches such as passive haptics, a category that includes pseudo-haptics. This approach combines visual and haptic senses to create a cross-modal illusional perception. The pseudo-haptic approach is a potential solution for exploiting the boundaries and capabilities of the human sensory system to simulate haptic information without physical force feedback.

This project uses pseudo-haptics to display a variety of shapes in a video see-through system that controls visual stimuli independently from haptic inputs. It is based on a rendering algorithm that detects users' fingertips and displaces and deforms users' hands according to the difference between the physical shape behind the display and the arbitrary virtual shape in the display to compose visual feedback that suggests users are touching the virtual shape. This visual feedback evokes a pseudo-haptic illusion that changes users' perceptions of the static object's shape and size.

Yuki Ban
The University of Tokyo

Takuji Narumi
The University of Tokyo

Tomohiro Tanikawa
The University of Tokyo

Michitaka Hirose
The University of Tokyo