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Displaying 1-7 out of 7 total
Haptic Invitation of Textures: Perceptually Prominent Properties of Materials Determine Human Touch Motions
Found in: IEEE Transactions on Haptics
By Hikaru Nagano,Shogo Okamoto,Yoji Yamada
Issue Date:July 2014
pp. 1-1
In daily life, certain textures and materials invite our touch motions. To seek the nature of such haptic invitation, we conducted a series of experiments consisting of sensory evaluations and ranking tasks for 36 materials to ascertain their perceptual pr...
Virtual Active Touch: Perception of Virtual Gratings Wavelength through Pointing-Stick Interface
Found in: IEEE Transactions on Haptics
By Shogo Okamoto,Takahiro Yamauchi,Masashi Konyo,Satoshi Tadokoro
Issue Date:January 2012
pp. 85-93
Tactile feedback enhances the usability and enjoyment of human-computer interfaces. Many feedback techniques have been devised to present tactile stimuli corresponding to a user's hand movements taking account of the concept of active touch. However, hand ...
Vibrotactile Stimuli Applied to Finger Pads as Biases for Perceived Inertial and Viscous Loads
Found in: IEEE Transactions on Haptics
By Shogo Okamoto, Masashi Konyo, Satoshi Tadokoro
Publication Date: July 2011
pp. N/A
The perception of the mass and viscosity of an object is based on the dynamic forces applied to our hands when we jiggle or lift the object [1], [2], [3]. This force is commonly assumed to be sensed by kinetic receptors [4] in our muscles or tendons. When ...
Detectability and Perceptual Consequences of Delayed Feedback in a Vibrotactile Texture Display
Found in: IEEE Transactions on Haptics
By Shogo Okamoto, Masashi Konyo, Satoshi Saga, Satoshi Tadokoro
Issue Date:April 2009
pp. 73-84
This study estimated the maximum allowable system latency for haptic displays that produce tactile stimuli in response to the hand movements of users. In Experiment 1, two types of detection thresholds were estimated for the time delay of stimuli through p...
Virtual active touch: Perceived roughness through a pointing-stick-type tactile interface
Found in: World Haptics Conference
By Takahiro Yamauchi, Masashi Konyo, Shogo Okamoto, Satoshi Tadokoro
Issue Date:March 2009
pp. 605-610
For realizing a tactile display for a handheld device, active touch movement should be represented on a small interface. We propose the addition of a tactile feedback mechanism for a pointing-stick-type (PS) input device. In this study, we describe a metho...
Roughness Feeling Telepresence System with Communication Time-D
Found in: World Haptics Conference
By Shogo Okamoto, Masashi Konyo, Takashi Maeno, Satoshi Tadokoro
Issue Date:March 2007
pp. 595-596
A framework of tactile telepresence systems will be proposed in the present paper, which enables active touch with time-delay communication between a tactile sensor side system and a display side system. In the framework, a tactile display system can apply...
Relative Contribution Ratios of Skin and Proprioceptive Sensations in Perception of Force Applied to Fingertip
Found in: IEEE Transactions on Haptics
By Kenya Matsui,Shogo Okamoto,Yoji Yamada
Issue Date:January 2014
pp. 78-85
Humans perceive a force applied to their fingertips by integrating skin and proprioceptive sensations. In this study, we investigated the relative contribution ratios of these sensations using two approaches. Decoupled forces were applied to the finger pad...