Extended Rate-Hardness: A Measure for Perceived Hardness

This paper presents a measure for assessing the perceived hardness of a haptic surface based on associated physical variables. This metric, named extended rate-hardness (ERH), is extended from rate-hardness originally proposed by Lawrence et al. in order to cover a larger class of rendering algorithms and applications. We also performed a psychophysical evaluation using absolute magnitude estimation to quantify the extent to which the ERH can account for perceived hardness. The findings have implications to developing haptic interfaces and rendering algorithms with improved perceptual hardness.

• Type: Conference
• Year: 2010
• Where: HAPTICS
• Authors: Gabjong Han, Seungmoon Choi
• Keywords: Associated Physical Variables, HAPTICS 2010, Human Computer Interaction, Improved Perceptual Hardness, Lawrence Et Al