Session:「Tactile」

From Pulse Trains to "Coloring with Vibrations": Motion Mappings for Mid-Air Haptic Textures

論文URL: http://dl.acm.org/citation.cfm?doid=3173574.3173639

論文アブストラクト: Can we experience haptic textures in mid-air? Typically, the experience of texture is caused by vibration of the fingertip as it moves over the surface of an object. This object's surface also guides the finger's movement, creating an implicit motion-to-vibration mapping. If we wish to simulate a texture in mid-air, such guidance does not exist, making the choice of motion-to-vibration mapping non-obvious. We evaluate the experience of moving a pointer with four different motion-to vibration mappings in an interview study. We found that some mappings lead to a perception shift, transforming the experience. When this occurs, the pointer is no longer perceived as vibrating, interactions become more pleasurable, and users have an increased experience of agency and control. We discuss how to leverage this in the design of haptic interfaces.

日本語のまとめ:

空中での物体テクスチャ表面を再現可能な装置を開発。想定された3種類の動きに対しての振動提示を行う。被験者に対してブラインドテストを行い、どの様なテクスチャを表現できるか調査、分類を行った。

Tactile Information Transmission by 2D Stationary Phantom Sensations

論文URL: http://dl.acm.org/citation.cfm?doid=3173574.3173832

論文アブストラクト: A phantom sensation refers to an illusory tactile sensation perceived midway between multiple distant stimulations on the skin. Phantom sensations have been used intensively in tactile interfaces owing to their simplicity and effectiveness. Despite that, the perceptual performance of phantom sensations is not completely understood, especially for 2D cases. This work is concerned with 2D stationary phantom sensations and their fundamental value as a means for information display. In User Study 1, we quantified the information transmission capacity using an absolute identification task of 2D phantom sensations. In User Study 2, we probed the distributions of the actual perceived positions of 2D phantom sensations. The investigations included both types of phantom sensations-within and out of the body. Our results provide general guidelines as to leveraging 2D phantom sensations in the design of spatial tactile display.

日本語のまとめ:

Phantom Sensationは空間触覚ディスプレイにおいて用いられるが、2Dにおいては調査が完璧ではない。そのため、これからの空間触覚ディスプレイの設計のガイドラインとして、知覚限界と知覚位置の調査を行なった。

Force Jacket: Pneumatically-Actuated Jacket for Embodied Haptic Experiences

論文URL: http://dl.acm.org/citation.cfm?doid=3173574.3173894

論文アブストラクト: Immersive experiences seek to engage the full sensory system in ways that words, pictures, or touch alone cannot. With respect to the haptic system, however, physical feedback has been provided primarily with handheld tactile experiences or vibration-based designs, largely ignoring both pressure receptors and the full upper-body area as conduits for expressing meaning that is consistent with sight and sound. We extend the potential for immersion along these dimensions with the Force Jacket, a novel array of pneumatically-actuated airbags and force sensors that provide precisely directed force and high frequency vibrations to the upper body. We describe the pneumatic hardware and force control algorithms, user studies to verify perception of airbag location and pressure magnitude, and subsequent studies to define full-torso, pressure and vibration-based feel effects such as punch, hug, and snake moving across the body. We also discuss the use of those effects in prototype virtual reality applications.

日本語のまとめ:

エアバッグと空気圧を用いた力提示と、エアバッグに装着した力センサを用いた指向性のある力と高周波振動を提示する。被験者に対して複数の状況に対して実験を行い、バイク、筋肉増強と落ち着いた心拍において高い再現性を示した。

Coding Tactile Symbols for Phonemic Communication

論文URL: http://dl.acm.org/citation.cfm?doid=3173574.3173966

論文アブストラクト: We present a study to examine one's learning and processing capacity of broadband tactile information, such as that derived from speech. In Study 1, we tested a user's capability to recognize tactile locations and movements on the forearm in the presence of masking stimuli and determined 9 distinguishable tactile symbols. We associated these symbols to 9 phonemes using two approaches, random and articulation associations. Study 2 showed that novice participants can learn both associations. However, performance for retention, construction of words and knowledge transfer to recognize unlearned words was better with articulation association. In study 3, we trained novel participants to directly recognize words before learning phonemes. Our results show that novel users can retain and generalize the knowledge to recognize new words faster when they were directly train on words. Finally, Study 4 examined optimal presentation rate for the tactile symbols without compromising learning and recognition rate.

日本語のまとめ:

アクチューエータを2x3で腕に装着し、振動を制御することで両手がふさがった状況において複数のHaptic Messageと音素を提示する手法を提案。26分の学習で 、20種の単語と9種の音素を認識可能であった