LampTop: Touch Detection for a Projector-Camera System Based on Shape Classification

Alex, Doney and Gorur, Pushkar and Amrutur, Bharadwaj and Ramakrishnan, KR (2013) LampTop: Touch Detection for a Projector-Camera System Based on Shape Classification. In: Proceedings of the 2013 ACM international conference on Interactive tabletops and surfaces , New York, NY, USA.

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Abstract

The LampTop enables an effective low cost touch interface utilizing only a single camera and a pico projector. It embeds a small shape in the image generated by the user application (e.g. a touch screen menu with icons) and detects touch by measuring the geometrical distortion in the camera captured image. Fourier shape descriptors are extracted from the camera-captured image to obtain an estimate of the shape distortion. The touch event is detected using a Support Vector Machine. Quantitative results show that the proposed method can effectively detect touch.

Item Type:	Conference Proceedings
Series.:	Proceedings of the 2013 ACM international conference on Interactive tabletops and surfaces
Publisher:	ACM
Additional Information:	Copy right for this article belongs to the Proceedings of the 2013 ACM international conference on Interactive tabletops and surfaces
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering Division of Electrical Sciences > Electrical Engineering
Date Deposited:	22 Oct 2016 05:43
Last Modified:	22 Oct 2016 05:43
URI:	http://eprints.iisc.ac.in/id/eprint/54634

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