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A hand gesture based interactive presentation system utilizing heterogeneous cameras

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3 Author(s)
Zeng, Bobo ; Department of Electronic Engineering, Tsinghua University, Beijing 100084, China ; Wang, Guijin ; Lin, Xinggang

In this paper, a real-time system that utilizes hand gestures to interactively control the presentation is proposed. The system employs a thermal camera for robust human body segmentation to handle the complex background and varying illumination posed by the projector. A fast and robust hand localization algorithm is proposed, with which the head, torso, and arm are sequentially localized. Hand trajectories are segmented and recognized as gestures for interactions. A dual-step calibration algorithm is utilized to map the interaction regions between the thermal camera and the projected contents by integrating a Web camera. Experiments show that the system has a high recognition rate for hand gestures, and corresponding interactions can be performed correctly.

Published in:

Tsinghua Science and Technology  (Volume:17 ,  Issue: 3 )