Haptic Perception of Real and Virtual Curvature

Wijntjes, Maarten; Sato, Akihiro; Kappers, Astrid M. L.; Hayward, Vincent

doi:10.1007/978-3-540-69057-3_46

Cited by 10 publications

(3 citation statements)

References 8 publications

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“…The curvature discrimination of shape representations is far worse than that described in earlier studies (e.g. [7,30]), however haptic volume exploration of the currently studied type is point-based and apply feedback of only three degrees-of-freedom, which precludes tactile curvature stimuli.…”

Section: Post-test Analysismentioning

confidence: 45%

The impact of feedback design in haptic volume visualization

Palmerius

Forsell

2009

World Haptics 2009 - Third Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoper

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Enhancing volume visualization with additional cues from our sense of touch has shown the potential to increase both speed and accuracy in the data exploration. Research in the area display a wide array of modes of interaction and many of these have been evaluated to demonstrate their capabilities. There are, however, few studies performed that compare different approaches for their strengths and weaknesses and there is a lack of guidelines on how the haptic feedback should be designed to allow for best performance.This paper describes a study on the influence of the basic principle chosen for data representation on the ability to identify faint structures in the data. Three metaphors are compaired, two types of shape metaphors and one force metaphor. Based on statistical analysis on evaluation data, interviews and observations a set of guidelines on the design of haptic visualization is described.

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Section: Post-test Analysismentioning

confidence: 45%

The impact of feedback design in haptic volume visualization

Palmerius

Forsell

2009

World Haptics 2009 - Third Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoper

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“…The conclusions deduced from the previous experience have been obtained with an experimental device named "Morpheotron" [6] which does not allow the sliding movement of the finger pulp on a surface. In our case, it must be different because our end-effector, the tactile feedback plate, relies on the principle of variable friction; as a consequence, the finger pulp sliding is mandatory to perceive the tactile effect.…”

Section: B Control Strategiesmentioning

confidence: 95%

Position control of a 3 DOF platform for haptic shape rendering

Zeng¹,

Lemaire‐Semail²,

Giraud³

et al. 2012

2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC)

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Haptics is related to the touch feeling: within the framework of virtual reality, the human machine interaction which relies mainly on the hearing and sight may be enhanced by adding the touch sense. Thus, force feedback and tactile feedback systems are now increasingly developed to improve interaction. In this paper, we propose a new haptic device able to render the shape and surface of different objects. For that purpose, a position controlled platform has been designed. The paper introduces the design and the control strategies used to render the accurate shapes of convex or concave surfaces. Experimental and psychophysical results are given to assess the quality of the approach.

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“…Hollins (1989) discussed the proposal that the pattern of stimulation from 2D pictures is unlike the pattern of stimulation obtained in exploring 3D objects and so conventions used in pictures are arbitrary to people who are blind. Wijntjes (2008) argued that people who are congenitally totally blind lack requirements needed to identify pictures. Wijntjes et al (2008) and Ceccetto and Lawson (2015) described haptic picture identification as difficult.…”

mentioning

confidence: 99%

Piaget's 3-mountains task with impossible options: Sighted, blindfolded, early and late blind participants

2023

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In Piaget's 3-mountains task, 3D objects – a cube, cone and sphere – sit on a square tabletop. They are portrayed in 2D pictures as elevations (projections to the sides) such as one with a square on the left, a triangle in the middle and a circle on the right. Three objects offer six elevations, of which four are possible and two impossible. The possibles are elevations from the sides of the table – front, left, right and rear. In the impossibles, an object in the corner of the table is shown in the middle of an elevation. Sighted, sighted-blindfolded, early- and late-blind adults judged the elevations as to side of the table or impossible. The results suggest similar spatial abilities across groups. The impossible options had mid-range accuracy for all groups, with reaction times like possible options. The sighted and blind participants may consider possible and impossible options sequentially, one item at a time.

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Haptic Perception of Real and Virtual Curvature

Cited by 10 publications

References 8 publications

The impact of feedback design in haptic volume visualization

The impact of feedback design in haptic volume visualization

Position control of a 3 DOF platform for haptic shape rendering

Piaget's 3-mountains task with impossible options: Sighted, blindfolded, early and late blind participants

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