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  Fingertip Interaction Metrics Correlate with Visual and Haptic Perception of Real Surfaces

Vardar, Y., Wallraven, C., & Kuchenbecker, K. (2019). Fingertip Interaction Metrics Correlate with Visual and Haptic Perception of Real Surfaces. In IEEE World Haptics Conference (WHC 2019) (pp. 395-400).

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-B41B-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-B41E-1
Genre: Conference Paper

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Vardar, Y, Author
Wallraven, C1, Author              
Kuchenbecker, KJ, Author
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 Abstract: Both vision and touch contribute to the perception of real surfaces. Although there have been many studies on the individual contributions of each sense, it is still unclear how each modality’s information is processed and integrated. To fill this gap, we investigated the similarity of visual and haptic perceptual spaces, as well as how well they each correlate with fingertip interaction metrics. Twenty participants interacted with ten different surfaces from the Penn Haptic Texture Toolkit by either looking at or touching them and judged their similarity in pairs. By analyzing the resulting similarity ratings using multi-dimensional scaling (MDS), we found that surfaces are similarly organized within the three-dimensional perceptual spaces of both modalities. Also, between-participant correlations were significantly higher in the haptic condition. In a separate experiment, we obtained the contact forces and accelerations acting on one finger interacting with each surface in a controlled way. We analyzed the collected fingertip interaction data in both the time and frequency domains. Our results suggest that the three perceptual dimensions for each modality can be represented by roughness/smoothness, hardness/softness, and friction, and that these dimensions can be estimated by surface vibration power, tap spectral centroid, and kinetic friction coefficient, respectively.

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 Dates: 2019-07
 Publication Status: Published online
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Title: IEEE World Haptics Conference (WHC 2019)
Place of Event: Tokyo, Japan
Start-/End Date: 2019-07-09 - 2019-07-12

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Title: IEEE World Haptics Conference (WHC 2019)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 395 - 400 Identifier: -