A Hand Gesture Based Interactive Presentation System Utilizing Heterogeneous Cameras |
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Authors: | Bobo Zeng Guijin Wang Xinggang Lin |
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Institution: | Department of Electronic Engineering, Tsinghua University, Beijing 100084, China |
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Abstract: | 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. |
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Keywords: | hand gesture detection gesture recognition thermal camera interactive presentation |
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