Roughness Perception of Textures with Exponentially Decaying Power Spectral Density

Abstract

Quantitative evaluation of tactile perception is important in the development of highly textured products. In order to quantitatively evaluate tactile perception, evaluation by measuring the vibration and pressure when touching the texture was proposed, but a prototype needs to be made. Predicting the tactile perception of a texture from its 3D model can help improve the efficiency of design. In this paper, in order to estimate tactile perception from 3D models, we investigated the roughness perception of textures with exponentially decaying power spectral density, and created a roughness model that represents the relationship between the two indices of surface characteristics of textures and the perceived roughness. We confirmed that the proposed roughness model can be fitted to perceived roughness.