Development of an Information Projection Interface Using a Projector-Camera System

作者：Goto Hiroki^*; Takemura Daisuke; Kawasaki Yuzo; Nakamura Akio

来源：Electronics and Communications in Japan, 2013, 96(11): 70-81.

DOI：10.1002/ecj.11477

• gesture recognition
• human interface
• information projection
• projector-camera system

This paper proposes an interface system that enables a user to input and obtain information independent of position within a certain area in an environment with a projector-camera system. Hand gestures detected in the image are used as a cue to start the system, to distinguish gestures based on the user's intention to operate the system from other daily-life motions, and to specify the position of the user's hand. Hand gesture detection is implemented based on a combination of the background subtraction method and skin color extraction. The user can designate the projection area freely on a flat surface in the environment with his/her hand. The projector is mounted on a pan-tilt unit that projects information according to the user's indications. Then, the user's fingertip is detected using simple template matching and he/she interacts with the projected information to input commands without any equipment. As one application, we developed an interface system to operate electrical appliances such as a television intuitively in an everyday environment.

• 出版日期2013-11