2P1-O12 Understanding Perceptual Properties of Vibrotactile Material Textures through Lossy Data Compression : An Objective Index that Accounts for Differences in Subjective Quality(Tactile and Force Sensing(2))

Abstract

This study develops an objective index that well describes vibrotactile material textures' quality changes caused by data compression processes. We introduce a linear combination of the power and amplitude spectra that are weighted by the inverse of a detection threshold curve of vibrotactile stimuli. This combination describes the quality deterioration of compressed textures to an accuracy of approximately 80%. These objective indices enhance the development of the lossy data compression algorithms and assist the search for physical quantities that affect perception of vibrotactile textures.