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Can we improve over weber sampling of haptic signals?

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3 Author(s)
Bhardwaj, A. ; Dept. of Electr. Eng., IIT Bombay, Mumbai, India ; Dabeer, O. ; Chaudhuri, S.

In applications such as telesurgery, it is required to transmit haptic signals to a remote location with a delay of at most few milliseconds. To reduce the packet rate and yet retain perceptual quality, adaptive sampling has been explored in the literature. In particular, in earlier work we proposed and analyzed an adaptive sampling scheme based on Weber's law of perception. In this paper, we explore other possible adaptive sampling candidates. We describe an experimental setup where users are subjected to piecewise constant haptic stimuli to which they can respond with a click. We record the clicks and ask the question: can we identify signal features and classiers to predict the clicks? The answer suggests adaptive sampling schemes that improve over Weber sampling.

Published in:

Information Theory and Applications Workshop (ITA), 2013

Date of Conference:

10-15 Feb. 2013