Change of Height: An Approach to the Haptic Display of Shape and Texture Without Surface Normal

Hayward, Vincent; Yi, Dingrong

doi:10.1007/3-540-36268-1_52

Cited by 20 publications

(9 citation statements)

References 8 publications

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“…Change of Height [16], [11] (C) Algorithm C, described in [16], is the extension of that used in the Sandpaper System to three dimensions [6]. The force field does not follow the normal of the texture; it depends on the position but not on the trajectory of the handle.…”

Section: Remarkmentioning

confidence: 99%

“…The force field does not follow the normal of the texture; it depends on the position but not on the trajectory of the handle. A related algorithm, presented in [11], computes a force with a tangential component that is proportional to the rate of change of the height of the virtual textured surface with respect to the curvilinear abscissa of the scan path. The algorithm results from the observation that the intensity of an interaction force should relate both to the shape of the surface and to the manner in which it is explored.…”

Section: Remarkmentioning

confidence: 99%

“…The aim is to provide a method to systematically analyze the properties of a given texture simulation algorithm, since many algorithms have been proposed [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], and many are yet to be designed.…”

Section: Introductionmentioning

confidence: 99%

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On the Synthesis of Haptic Textures

Campion¹

2008

Springer Series on Touch and Haptic Systems

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Abstract-Advanced, synthetic haptic virtual environments require textured virtual surfaces. We found that texturing smooth surfaces often reduces the system passivity margin of a haptic simulation. As a result, a smooth virtual surface that can be rendered in a passive manner may loose this property once textured. We propose that any texture algorithm is associated with a characteristic number that expresses the relative change in loop gain. We further found that a passive virtual interaction can have severe unwanted artifacts if the synthesized force field is not conservative. The energy characteristics of seven algorithms are analyzed. Finally a new texture synthesis algorithm, which operates by modulating a friction force during scanning, is shown to have several advantages over previous ones.

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Section: Remarkmentioning

confidence: 99%

Section: Remarkmentioning

confidence: 99%

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On the Synthesis of Haptic Textures

Campion¹

2008

Springer Series on Touch and Haptic Systems

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“…Minsky used a tangential force-gradient algorithm for 2D texture rendering, where the displayed force is in the plane of the textured surface and proportional to the gradient of the surface-height profile. Hayward and Dingrong later extended this method to devices with three or more degrees of freedom [9].…”

Section: Haptic Texturingmentioning

confidence: 99%

Procedural haptic texture

Shopf

Olano

2006

Proceedings of the 19th Annual ACM Symposium on User Interface Software and Technology

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We present the Haptic Shading Framework (HSF), a framework for procedurally defining haptic texture. HSF haptic texture shaders are short procedures allowing an application-programmer to easily define interesting haptic surface interaction and the parameters that control the surface properties. These shaders provide the illusion of surface characteristics by altering previously calculated forces from object collision in the haptic pipeline.HSF can be used in an existing haptic application with few modifications. The framework consists of user-programmable modules that are dynamically loaded. This framework and all user-defined procedures are written in C++, with a provided library of useful math and geometry functions. These functions are meant to mimic RenderMan functionality, creating a familiar shading environment. As we demonstrate, many procedural shading methods and algorithms can be directly adopted for haptic shading.

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“…The display methods could be divided into three categories: the first is based on geometric shape reproduce, it gets texture's geometric contour through image processing, and then uses force feedback device to display contact force normally and tangentially [1]; the second is based on vibration perception, the researchers constructed array of needles and controlled their vibration amplitude and frequency to reproduce the texture [2][3][4]; the third is based on the friction force change, it could get texture feeling by changing the contact friction between the finger and the interface of haptic device, like Tesla Touch [5] and StimTac [6].…”

Section: Introductionmentioning

confidence: 99%

Macro-texture perception through active and dynamic touch

Chen¹,

Li²,

He³

et al. 2016

Proceedings of the 2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)

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Abstract. The tactile mechanism of texture perception is getting well figured out, resulting in the emergence of texture rendering devices. It is worth noting that the textures in these studies have interior space gap in the millimeter level and below. This kind of textures is called "fine texture". In contrast, the "Macro texture" has space gap in centimeters and above, and it is considered as the special texture with tiny texture pattern covered on curved surface. Compared with fine texture, macro texture contains richer surface information, including both roughness and curvature. This paper aims to study the mechanism of macro texture perception, and establish active and dynamic touch-based haptic perception models.

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Change of Height: An Approach to the Haptic Display of Shape and Texture Without Surface Normal

Cited by 20 publications

References 8 publications

On the Synthesis of Haptic Textures

On the Synthesis of Haptic Textures

Procedural haptic texture

Macro-texture perception through active and dynamic touch

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