Psychophysical Influence on Tactual Impression by Mixed-Reality Visual Stimulation

lesaki, A.; Somada, Akihiro; Kimura, Asako; Shibata, Fumihisa; Tokuda, Hideyuki

doi:10.1109/vr.2008.4480793

Cited by 13 publications

(8 citation statements)

References 4 publications

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“…In addition, a few research results highlight the potential for pseudohaptic effects corresponding to our perception of not only force but also texture (Iesaki, Somada, Kimura, Shibata, & Tamura, 2008;Lécuyer, Burkhardt, & Tan, 2008) and shape. Research has shown that when we are presented with conflicting sensory stimuli, vision usually dominates our perception of shape.…”

Section: Related Workmentioning

confidence: 99%

Modifying Perceived Size of a Handled Object through Hand Image Deformation

Ban

Narumi

Tanikawa

et al. 2013

Presence: Teleoperators and Virtual Environments

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In this study, we aim to construct a perception-based shape display system to provide users with the sensation of touching virtual objects of varying shapes using only a simple mechanism. Thus far, we have proved that identified curved surface shapes or edge angles can be modified by displacing the visual representation of the user's hand. However, using this method, we cannot emulate multifinger touch, because of spatial unconformity. To solve this problem, we focus on modifying the identification of shapes using two fingers by deforming the visual representation of the user's hand. We devised a video see-through system that enables us to change the perceived shape of an object that a user is touching visually. The visual representation of the user's hand is deformed as if the user were handling a visual object; however, the user is actually handling an object of a different shape. Using this system, we conducted two experiments to investigate the effects of visuo-haptic interaction and evaluate its effectiveness. One is an investigation on the modification of size perception to confirm that the fingers did not stroke the shape but only touched it statically. The other is an investigation on the modification of shape perception for confirming that the fingers dynamically stroked the surface of the shape. The results of these experiments show that the perceived sizes of objects handled using a thumb and other finger(s) could be modified if the difference between the size of physical and visual stimuli was in the À40% to 35% range. In addition, we found that the algorithm can create an effect of shape perception modification when users stroke the shape with multiple fingers.

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Section: Related Workmentioning

confidence: 99%

Modifying Perceived Size of a Handled Object through Hand Image Deformation

Ban

Narumi

Tanikawa

et al. 2013

Presence: Teleoperators and Virtual Environments

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“…There are some studies about the influence of MR visual stimulation on haptic perception, including our previous studies [4][5][6][7][8]. Kitahara et al confirmed that visual stimulation in an MR environment affects the haptic perception of texture and sharpness of an edge [18]; this idea is similar to [4]. Nakahara et al described the result of experiments on the curvature factor of edges [19].…”

Section: Related Workmentioning

confidence: 71%

R-V Dynamics Illusion: Psychophysical Influence on Sense of Weight by Mixed-Reality Visual Stimulation of Moving Objects

Hashiguchi

Sano

Shibata

et al. 2014

Lecture Notes in Computer Science

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When humans sense the weight of real objects, their perception is known to be influenced by not only tactile information but also visual information. In a Mixed-Reality (MR) environment, the appearance of touchable objects can be changed by superimposing a computer-generated image (CGI) onto them (MR visual stimulation). In this paper, we studied the psychophysical influence on the sense of weight by using a real object that has a CGI superimposed on it. In the experiments, we show CGI representing the inertial force caused by the movable objects inside, while the subject swings the real object. The results of the experiments show that the subjects sensed weight differently when being shown the CGI animation.

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“…For example, Lécuyer (2009) utilized a pseudo-haptic approach to influence the perception of stiffness of a virtual spring. Other methods investigated the perception of textures in mixed reality (MR) environments using techniques that exploit visual dominance (Iesaki et al, 2008;Punpongsanon et al, 2015;Strohmeier et al, 2018;Sato et al, 2020). Here, Punpongsanon et al (2015) influence the perception of softness by augmenting surfaces using different projection-based visual effects.…”

Section: Mixed Texture Perceptionmentioning

confidence: 99%

MetaReality: enhancing tactile experiences using actuated 3D-printed metamaterials in Virtual Reality

Feick

Degraen

Hupperich

et al. 2023

Front. Virtual Real.

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During interaction with objects in Virtual Reality haptic feedback plays a crucial role for creating convincing immersive experiences. Recent work building upon passive haptic feedback has looked towards fabrication processes for designing and creating proxy objects able to communicate objects’ properties and characteristics. However, such approaches remain limited in terms of scalability as for each material a corresponding object needs to be fabricated. To create more flexible 3D-printed proxies, we explore the potential of metamaterials. To this aim, we designed metamaterial structures able to alter their tactile surface properties, e.g., their hardness and roughness, upon lateral compression. In this work, we designed five different metamaterial patterns based on features that are known to affect tactile properties. We evaluated whether our samples were able to successfully convey different levels of roughness and hardness sensations at varying levels of compression. While we found that roughness was significantly affected by compression state, hardness did not seem to follow the same pattern. In a second study, we focused on two metamaterial patterns showing promise for roughness perception and investigated their visuo-haptic perception in Virtual Reality. Here, eight different compression states of our two selected metamaterials were overlaid with six visual material textures. Our results suggest that, especially at low compression states, our metamaterials were the most promising ones to match the textures displayed to the participants. Additionally, when asked which material participants perceived, adjectives, such as “broken” and “damaged” were used. This indicates that metamaterial surface textures could be able to simulate different object states. Our results underline that metamaterial design is able to extend the gamut of tactile experiences of 3D-printed surfaces structures, as a single sample is able to reconfigure its haptic sensation through compression.

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Psychophysical Influence on Tactual Impression by Mixed-Reality Visual Stimulation

Cited by 13 publications

References 4 publications

Modifying Perceived Size of a Handled Object through Hand Image Deformation

Modifying Perceived Size of a Handled Object through Hand Image Deformation

R-V Dynamics Illusion: Psychophysical Influence on Sense of Weight by Mixed-Reality Visual Stimulation of Moving Objects

MetaReality: enhancing tactile experiences using actuated 3D-printed metamaterials in Virtual Reality

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