Shape-COG Illusion: Psychophysical influence on center-of-gravity perception by mixed-reality visual stimulation

Omosako, Hiroki; Kimura, Asako; Shibata, Fumihisa; Tokuda, Hideyuki

doi:10.1109/vr.2012.6180884

Cited by 12 publications

(6 citation statements)

References 5 publications

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“…Additionally, we focused on the center of gravity (COG) and examined the influence of superimposing virtual objects having different COG positions onto real objects. As a result, we confirmed that COG perception can be influenced by superimposing virtual objects, and we named this illusion the "Shape-COG Illusion [8]. "…”

Section: Introductionsupporting

confidence: 61%

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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Section: Introductionsupporting

confidence: 61%

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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“…These works show that it is possible to change the weight by controlling the centre of gravity. Omosaka et al also focused on the centre of gravity, by verifying the influence of mixed reality visual stimulations on the centre of gravity, in mixed reality environments [20]. However, their methods required a head mounted display which may also influence one's perception.…”

Section: Methods To Create Virtual Weightmentioning

confidence: 99%

Gravitamine spice

Hirose

Iwazaki

Nojiri

et al. 2015

Proceedings of the 6th Augmented Human International Conference

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The flavor of food is not just limited to the sense of taste, but also it changes according to the perceived information from other perception such as the auditory, visual, tactile senses, or through individual experiences or cultural background, etc. We proposed "Gravitamine Spice", a system that focuses on the cross-modal interaction between our perception; mainly the weight of food we perceived when we carry the utensils. This system consists of a fork and a seasoning called the "OMOMI". User can change the weight of the food by sprinkling seasoning onto it. Through this sequence of actions, users can enjoy different dining experiences, which may change the taste of their food or the feeling towards the food when they are chewing it.

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“…Omosako et al [23] investigated the influence of visual information on Center-of-Gravity (CoG) perception. In this study, the authors conducted experiments to examine the influence of superimposing virtual objects having different CoG positions onto real objects with different mass.…”

Section: Influence Of Visual Informationmentioning

confidence: 99%

Toward "Pseudo-Haptic Avatars": Modifying the Visual Animation of Self-Avatar Can Simulate the Perception of Weight Lifting

Jáuregui

Argelaguet²,

Olivier

et al. 2014

IEEE Trans. Visual. Comput. Graphics

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In this paper we study how the visual animation of a self-avatar can be artificially modified in real-time in order to generate different haptic perceptions. In our experimental setup, participants could watch their self-avatar in a virtual environment in mirror mode while performing a weight lifting task. Users could map their gestures on the self-animated avatar in real-time using a Kinect. We introduce three kinds of modification of the visual animation of the self-avatar according to the effort delivered by the virtual avatar: 1) changes on the spatial mapping between the user’s gestures and the avatar, 2) different motion profiles of the animation, and 3) changes in the posture of the avatar (upper-body inclination). The experimental task consisted of a weight lifting task in which participants had to order four virtual dumbbells according to their virtual weight. The user had to lift each virtual dumbbells by means of a tangible stick, the animation of the avatar was modulated according to the virtual weight of the dumbbell. The results showed that the altering the spatial mapping delivered the best performance. Nevertheless, participants globally appreciated all the different visual effects. Our results pave the way to the exploitation of such novel techniques in various VR applications such as sport training, exercise games, or industrial training scenarios in single or collaborative mode.

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Shape-COG Illusion: Psychophysical influence on center-of-gravity perception by mixed-reality visual stimulation

Cited by 12 publications

References 5 publications

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

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

Gravitamine spice

Toward "Pseudo-Haptic Avatars": Modifying the Visual Animation of Self-Avatar Can Simulate the Perception of Weight Lifting

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