Haptic rendering of cultural heritage objects at different scales

Authors:
K. G. Sreeni;K. Priyadarshini;A. K. Praseedha;Subhasis Chaudhuri
Affiliations:
Vision and Image Processing Laboratory, Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai, India;Vision and Image Processing Laboratory, Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai, India;Vision and Image Processing Laboratory, Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai, India;Vision and Image Processing Laboratory, Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai, India
Venue:
EuroHaptics'12 Proceedings of the 2012 international conference on Haptics: perception, devices, mobility, and communication - Volume Part I
Year:
2012

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Abstract

In this work, we address the issue of virtual representation of objects of cultural heritage for haptic interaction. Our main focus is to provide a haptic access of artistic objects of any physical scale to the differently abled people. This is a low-cost system and, in conjunction with a stereoscopic visual display, gives a better immersive experience even to the sighted persons. To achieve this, we propose a simple multilevel, proxy-based hapto-visual rendering technique for point cloud data which includes the much desired scalability feature which enables the users to change the scale of the objects adaptively during the haptic interaction. For the proposed haptic rendering technique the proxy updation loop runs at a rate 100 times faster than the required haptic updation frequency of 1KHz. We observe that this functionality augments very well to the realism of the experience.