corn snake wildtiptip

Saekwang Nam, Suntak Park, Sungryul Yun, Bong Je Park, Seung Koo Park, Mijeong Choi, Ki-Uk Kyung. Presented at AsiaHaptics2014.
This demonstration shows a highly flexible, transparent, and thin tactile sensor. The sensor detects touch forces at single or multiple points with fast response and high bendability in response to dynamic input force (0–3 N) without any electronic components on sensing areas. The sensor is also capable of sensing pressure on curvilinear soft surface such as human skin without significant performance degradation. The force sensor has potentials to be used in a number of applications for measuring dynamic contact forces on various surfaces.
http://link.springer.com/chapter/10.1...

Motonori Toshima, Katsuhito Akahane, Makoto Sato. Presented at AsiaHaptics2014.
In this study, we propose a haptic device SPIDAR-S which is able to be attached to the smartphone. Haptic devices that have been developed before are not familiar to many people because they are expensive, large, and complex. Therefore, we aimed to develop SPIDAR-S which is a very small and simple device. And we hope that many people will be able to enjoy haptic technology easily in any place by using it.
http://link.springer.com/chapter/10.1...

Keisuke Hasegawa, Hiroyuki Shinoda. Presented at AsiaHaptics2014.
We have created a system that generates vibrotactile images on the surface of bare human palms. It simultaneously projects visible images by a video projector and produces non-contact vibrotactile stimuli using focused airborne ultrasound on the users’ skin. The vibrotactile images can be moved smoothly owing to the ultrasound phased array technique employed in the system. The vibrational texture can be tuned with amplitude modulation of ultrasound at the focal point. Our proposed system does not postulate that users wear specific devices for sensing tactile stimuli, which allows users to be free from any physical constraints.
http://link.springer.com/chapter/10.1...

Kosuke Sato, Yuki Hashimoto, Hiroaki Yano, Hiroo Iwata. Presented at AsiaHaptics2014.
The ball game robot has attracted considerable research attention in recent years. This paper describes the research and development of a ball game robot based on human physical properties and defensive motion. In particular, we focus on reproducing defensive motion. We will develop a defense robot that can be used in a training field and aim at building an interactive system. Considering the problem of strength and stability control, we attached weight to important operations. Because the arms and hands of the robot were built to imitate human physical properties, the robot can bounce a ball realistically. We conducted a quality assessment experiment to determine whether the robot operations indeed imitate a defensive motion and verified the validity of the experiment.
http://link.springer.com/chapter/10.1...

Panoramic Movie-Rendering Method with Superimposed Computer Graphics for Immersive Walk-Through System
Hikaru Takatori, Hiroaki Yano, Hiroo Iwata. Presented at AsiaHaptics2014.
This paper describes a technique for developing an immersive walk-through system that implements a rendering method for superimposing computer graphics onto a panoramic movie in an immersive walk-through system. The system is composed of a locomotion interface and an immersive spherical display. In this study, we analyze the camera path from the movie to stabilize the orientation of the camera for rendering an immersive image. Further, the system superimposes computer graphics (CG) onto the image according to the system coordinates from the movie. We implemented the proposed rendering method to realize a free viewpoint image with the movie and the CG by moving the viewpoint.
http://link.springer.com/chapter/10.1...

Minh Phuong Hoang, Jaebong Lee, Hojin Lee, Kyusong Lee, Gary Geunbae Lee, Seungmoon Choi. Presented at AsiaHaptics2014.
For computer-based education, virtual environments equipped with haptic devices have been used to aid the learning process. The main benefit of haptics technology is that it can improve the realism of virtual environments. This paper describes a haptic-enabled English education system for elementary students. We demonstrate two game-based scenarios which allow users to learn English and scientific laws by exploring in virtual environments with a haptic interface.
http://link.springer.com/chapter/10.1...

Yoshihiro Tanaka, Taiji Sakajiri, Akihito Sano. Presented at AsiaHaptics2014.
This paper presents the influence of the gravity on the motor control of the upper limb by using the simulated steering system. The generation of the mirror illusion is tested under the condition that one handgrip is fixed and the other handgrip is turned by using the steering system. A preliminary test shows that participants can perceive the steering as being natural (mirror illusion) when the operated arm is turned against gravity, but they hardly perceive the steering as being natural when the operated arm is turned with gravity. This result indicates that the motor control of moving with gravity may be force-oriented and that against gravity may be position-oriented.
http://link.springer.com/chapter/10.1...

Ryo Honaga, Kazuki Imai, Kyohei Hayakawa, Masamichi Sakaguchi. Presented at AsiaHaptics2014.
In thermal display systems, the way to perform heating and cooling is an important issue. In this study, presenting temperature is controlled by adjusting the water flow volume in the thermal display system using water. In this paper, we explain the contents considering the water flow volume and the relation of the temperature changes, on the basis of the experimental result using the thermal displays of various form and size.
http://link.springer.com/chapter/10.1...

Daiki Maemori, Lope Ben Porquis, Masashi Konyo, Satoshi Tadokoro. Presented at AsiaHaptics2014.
Dexterity for fine manipulation requires information from multiple skin contacts to detect the external forces applied on a tool. In this study, we developed a haptic interface to represent the external forces or stiffness of objects so that the pressure distributions at the contact pads can be controlled by using suction stimuli. The original interface had the drawback of being unable to represent high-frequency force sensations such as friction and collision because of air stimuli have large-scale characteristics. Thus, we integrated vibrotactile stimuli into the interface to represent high-frequency force sensations.
http://link.springer.com/chapter/10.1...

Hiroshi Okumura, Shogo Okamoto, Shun Ishikawa, Kaoru Isogai, Naomi Yanagihara-Yamada, Yasuhiro Akiyama, Yoji Yamada. Presented at AsiaHaptics2014.
We developed a prototype of an exoskeletal patient simulator that allows clinical trainees to experience and learn about ankle disorders related to hemiplegia. The exoskeleton exerts abnormal joint torques by tendon mechanisms while realizing complex ankle movements and realistic bone and skin features. Using this exoskeleton, we simulated the resistances of spasticity and clonus, which are typical symptoms of hemiplegia. We demonstrated these two types of simulated symptoms and showed their validity.
http://link.springer.com/chapter/10.1...

Dongbum Pyo, Semin Ryu, Seung-Chan Kim, Dong-Soo Kwon. Presented at AsiaHaptics2014.
This paper presents a new surface display that enables delicate tactile rendering with electrovibration and mechanical vibration. Haptic information on the surface can be expressed more richly if both feedback types are rendered simultaneously.
http://link.springer.com/chapter/10.1...

Yasuaki Monnai, Keisuke Hasegawa, Masahiro Fujiwara, Kazuma Yoshino, Seki Inoue, Hiroyuki Shinoda. Presented at AsiaHaptics2014.
We present a method to add textures to aerial images using ultrasounds. The superposition of an acoustic radiation pressure on an aerial image allows users to feel a tactile texture of a virtual object floating in midair. Tactile textures can be altered by modulating the waveform of the ultrasounds. The tactile feedback is presented selectively on the user’s fingertip using an infrared sensor without an extra marker. The proposed method provides a rich visuo–tactile experience all in free space.
http://link.springer.com/chapter/10.1...

The Scaling of the Haptic Perception on the Fingertip Using an Interface of Anthropomorphic Finger Motions
Yusuke Ujitoko, Koichi Hirota. Presented at AsiaHaptics2014.
The demonstration described in this paper attempts to give users tactile feedback on the sole of the virtual avatar using the locomotion interface of anthropomorphic finger motions. We believe that the illusion in the contact area can be caused by the sense of ownership derived from the close relationship of the motion between the fingers and the avatar’s legs. The objective of this study was to prove the possibility that fingers can be substituted in the place of legs in locomotion interfaces in terms of tactile sensation.
http://link.springer.com/chapter/10.1...

Shunsuke Yoshimoto, Yoshihiro Kuroda, Masataka Imura, Osamu Oshiro. Presented at AsiaHaptics2014.
We present a texture modulation technique that employs electrotactile augmentation to alter roughness perception during the texture exploration of a 3D fabricated object. The system detects user’s touch action and renders the electrical stimulus that induces the modulating nerve activities at the middle phalanx of a finger. The users perceive fused sensation of the virtual sensation from the artificial electrical stimulus and the real sensation from the exploration of the fabricated object. The system allows users to explore the surface of a fabricated object with their bare finger and feel various roughness of the surface according to the modulation gain.
http://link.springer.com/chapter/10.1...

Koichi Hirota, Yusuke Ujitoko, Kazuya Kiriyama, Kazuyoshi Tagawa. Presented at AsiaHaptics2014.
This study investigated the implementation of a deformable elastic hand model. We used the finite element method (FEM) and the penalty method for physics-based computations of forces and deformations on the contact area. To accelerate the computation, we developed an efficient method that utilizes the link structure of the hand. Using this model, users can perform object manipulation and get visual feedback from the deformations in the skin.
http://link.springer.com/chapter/10.1...

Takahiro Okubo, Katsuhito Akahane, Makoto Sato. Presented at AsiaHaptics2014.
In this paper, we propose a haptization system for animal images by using a 3D model of the animal. The haptization methods which were proposed before, there has been some problems. Some haptization methods are insufficient sense of presence, or require the depth information, so they are not fit to apply to animal images. Therefore, the purpose of this research is to improve the three-dimensional impression and the sense of presence by placing a 3D model of an animal on the image and performing the haptic feedback. But generating the 3D model of the animal from an image automatically and to estimate the pose is difficult. So we are going to make a system which have an existing 3D models and pose information, then users can choose and place them without stress.
http://link.springer.com/chapter/10.1...

Yu-uki Enzaki, Hiroaki Yano, Yukio Oshiro, Jaejeong Kim, Sangtae Kim, Hiroo Iwata, Nobuhiro Ohkohchi. Presented at AsiaHaptics2014.
In this study, a system for a hepatectomy simulator was developed. The system consists of 2 haptic devices, a visual display, a depth sensor , and a control PC. One of the haptic devices is used for left hand. A silicon rubber mock-up of the lobe of a liver is attached to the end effector of the haptic device. Another haptic device is provided for right hand, which is a mock-up of an ultrasonic aspirator. Then, the user can incises a virtual liver with it, and the mock-up is vibrated similar to a real ultrasonic aspirator. By using the depth sensor, the position of the haptic device is measured and transmitted to the PC. In the PC, simulation software, named Liversim, calculates the interference between the tip of the interface and the virtual liver. The virtual liver can be deformed, translated, or incised by the user. Image of the virtual liver is presented to the user. And the user can feel the reaction force like a real surgery through the haptic interfaces.
http://link.springer.com/chapter/10.1...

Yunong Ji , Hiroyuki Tajima, Katsuhito Akahane, Makoto Sato. Presented at AsiaHaptics2014.
In this paper, we describe the design of a wire-driven haptic device. One of the problems of wire-driven haptic devices is that peak force feedback are different by directions. If we solve this problem, we will be able to consider the design of wire-driven haptic device by minimal actuator output. Using min-max method, we sought the optimal geometric structure for omnidirectional isotropic peak force feedback and made a prototype according to it.
http://link.springer.com/chapter/10.1...

Arinobu Niijima, Takefumi Ogawa. Presented at AsiaHaptics2014.
Tactile feedback is important for interaction in virtual reality. Some previous works employed vibration motors for tactile display. However, it is difficult to recognize the position of vibrotactile perception because the resolution of tactile perception is not so high. Our previous works and other previous works describe that visual stimulation seemed to influence tactile perception. In this paper, we describe some experiments to verify the spatial resolution of vibrotactile perception on a forearm and a palm and to investigate the influence of visual stimulation on vibrotactile perception. The results show that visual stimulation influences the position of vibrotactile perception. From this perspective, we propose a vibrotactile display with LEDs for changing the position of vibrotactile perception.
http://link.springer.com/chapter/10.1...

Nutnaree Kleawsirikul, Yuanyuan Li, Shoichi Hasegawa. Presented at AsiaHaptics2014.
We propose a novel stuffed-toy robot with ability to express its intention through different responding force of the arms under force control. The robot is soft enough that people may want to embrace. The core of the research is the new force control mechanism for detection of the external force acting on the arms of the robot. The robot can sense the external force by a specialized force sensor and then change its stiffness with force control to respond to us. Different compliance on the arms can be realized by the change of force control gain.
http://link.springer.com/chapter/10.1...