Event Description
ECE Robotics Seminar Series: Feeling Real and Virtual Surfaces: Contact Mechanics and Perception
Speaker: Dr. Shogo Okamoto, Nagoya University,
Department of Mechanical Science and Engineering
Friday, February 28, 2014 at 3:00 p.m.
Hill Conference Room, Room 240, 2nd Floor, Lebow Engineering Center Abstract
This talk will review two important aspects of haptic interaction with real and virtual surfaces. First is the modeling of interaction forces between a human finger and object surfaces during haptic exploration. Successful modeling of such phenomena leads to more realistic haptic display techniques or force rendering algorithms. However, the contact mechanics of the human fingertip is very complicated due to the elastic surface contact of the human finger. In this talk, I will elaborate on one aspect of such difficulties, based on the exploration of simple wavy surfaces. Second, I will ask how we can evaluate the quality of simulated sensory stimuli, such as computer graphic or haptic rendering? A comparison of physical quantities between real and simulated stimuli is one option. However, the physical similarity does not necessarily imply perceptual similarity. Thus, many researchers adopt psychological methods to assess their simulated stimuli, which leads to headaches. As an alternative, I will review an evaluation method for simulated stimuli, in which real and simulated stimuli are located in a multidimensional perceptual space that allows us to graphically analyze and realize the simulated stimuli, and to specify the latent problems that should be resolved for developing better simulations. Bio
Shogo Okamoto is assistant professor in the Department of Mechanical Science and Engineering at Nagoya University, Japan. He completed the Master and Ph.D. degrees in information sciences at Tokohu University, Japan, and from 2006-2007 was visiting researcher at the National Institute of Standards (NIST).
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