Author:
Ujitoko Yusuke,Kawabe Takahiro
Abstract
AbstractHumans can judge the softness of elastic materials through only visual cues. However, factors contributing to the judgment of visual softness are not yet fully understood. We conducted a psychophysical experiment to determine which factors and motion features contribute to the apparent softness of materials. Observers watched video clips in which materials were indented from the top surface to a certain depth, and reported the apparent softness of the materials. The depth and speed of indentation were systematically manipulated. As physical characteristics of materials, compliance was also controlled. It was found that higher indentation speeds resulted in larger softness rating scores and the variation with the indentation speed was successfully explained by the image motion speed. The indentation depth had a powerful effect on the softness rating scores and the variation with the indentation depth was consistently explained by motion features related to overall deformation. Higher material compliance resulted in higher softness rating scores and these variation with the material compliance can be explained also by overall deformation. We conclude that the brain makes visual judgments about the softness of materials under indentation on the basis of the motion speed and deformation magnitude.
Publisher
Springer Science and Business Media LLC
Reference44 articles.
1. Luca, M. D. Multisensory Softness, Perceived Compliance from Multiple Sources of Information. Springer (2014).
2. Kuschel, M., Di Luca, M., Buss, M. & Klatzky, R. L. Combination and integration in the perception of visual-haptic compliance information. IEEE Trans. Haptics 3, 234–244 (2010).
3. Pressman, A., Welty, L. J., Karniel, A. & Mussa-Ivaldi, F. A. The international journal of robotics. Int. J. Robot. Res. 26, 1191–1203 (2007).
4. Srinivasan, M. A. & LaMotte, R. H. Tactual discrimination of softness. J. Neurophysiol. 73, 88–101 (1995).
5. Tiest, W. M. B. & Kappers, A. M. Cues for haptic perception of compliance. IEEE Trans. Haptics 2, 189–199 (2009).
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献