Session:「Designing Haptic Interfaces」

PinPad: Touchpad Interaction with Fast and High-Resolution Tactile Output

論文URL: http://dl.acm.org/citation.cfm?doid=3025453.3025971

論文アブストラクト: We explored new interaction scenarios that can be realized when a touchpad outputs fast and high-resolution spatio-temporal tactile patterns to the touch-sensitive skin on the fingertips of a user. We first constructed a special tactile multi-touch touchpad called PinPad, which was capable of outputting fast and high-resolution tactile patterns using a 40 x 25 array of actuated pins. We then developed various interaction scenarios that could be realized using the prototype: 1) Tactile Target, 2) Guide and Constraint, 3) Multi-finger Output, and 4) Dynamic Partition. To evaluate the PinPad scenarios, we implemented demo applications, and conducted interviews with users to collect feedback about their experiences with PinPad and the PinPad scenarios. The participants confirmed the effectiveness of spatio-temporal outputs of PinPad in the scenarios. In particular, they provided diverse feedback regarding the unique tactile experiences of the fast and high-resolution outputs of PinPad.

日本語のまとめ:

指先の操作に適した触覚インタフェースを与えるPinPadと呼ばれるマルチタッチパッドの開発を行った.パッドの裏にある40x25本のピンが上下に動くことによりパッドの表面に立体的な触覚を掲示することができ,UIに対応した触覚を与えることが可能である.

Agency in Mid-air Interfaces

論文URL: http://dl.acm.org/citation.cfm?doid=3025453.3025457

論文アブストラクト: Touchless interfaces allow users to view, control and manipulate digital content without physically touching an interface. They are being explored in a wide range of application scenarios from medical surgery to car dashboard controllers. One aspect of touchless interaction that has not been explored to date is the Sense of Agency (SoA). The SoA refers to the subjective experience of voluntary control over actions in the external world. In this paper, we investigated the SoA in touchless systems using the intentional binding paradigm. We first compare touchless systems with physical interactions and then augmented different types of haptic feedback to explore how different outcome modalities influence intentional binding. From our experiments, we demonstrated that an intentional binding effect is observed in both physical and touchless interactions with no statistical difference. Additionally, we found that haptic and auditory feedback help to increase SoA compared with visual feedback in touchless interfaces. We discuss these findings and identify design opportunities that take agency into consideration.

日本語のまとめ:

タッチレスインタフェースを用いた際のSense of Agency(自分の行動をコントロールできる感覚)についての調査と評価を行い,調査結果からタッチレスインタフェースと物理的なインタフェースの入力操作には差がないことを確認した.

Frozen Suit: Designing a Changeable Stiffness Suit and its Application to Haptic Games

論文URL: http://dl.acm.org/citation.cfm?doid=3025453.3025655

論文アブストラクト: We present the concept of Frozen Suit, a type of clothing that restricts users' movements at joint positions (e.g. elbow, knee) via a changeable stiffness jamming material. The suit can "freeze" users' body parts, for example during a game in order to provide the physical sensation of being frozen by an enemy. In this paper we first present the Frozen Suit concept and its potential applications. We then systematically investigate how to design jamming patches in order to sufficiently restrict an arm or a leg. In particular we used low-fidelity prototypes to explore the restricting power of different material and particles. In order to push this analysis further we conducted a controlled experiment in order to compare the perceived stiffness of different patches sizes attached to the elbow. We performed a paired comparison experience and used a Bradley-Terry-Luce model to analyze the subjective feedback from participants. We found that 20cm long x 7cm large is the most restrictive patch and that an increase in patch area correlates with an increase in perceived stiffness (quadratic). We finish by presenting a use case application with a game that we implemented where enemies can freeze the player.

日本語のまとめ:

身体に凍結している感覚を与えるスーツの開発.関節部分に空気圧で内部の粒子の摩擦を変化させることが可能なデバイスを装着する.凍結感覚を与えるために最適な粒子の検討も行った.VRゲームでの応用が考えられる.

Haptic-Enabled Handheld Mobile Robots: Design and Analysis

論文URL: http://dl.acm.org/citation.cfm?doid=3025453.3025994

論文アブストラクト: The Cellulo robots are small tangible robots that are designed to represent virtual interactive point-like objects that reside on a plane within carefully designed learning activities. In the context of these activities, our robots not only display autonomous motion and act as tangible interfaces, but are also usable as haptic devices in order to exploit, for instance, kinesthetic learning. In this article, we present the design and analysis of the haptic interaction module of the Cellulo robots. We first detail our hardware and controller design that is low-cost and versatile. Then, we describe the task-based experimental procedure to evaluate the robot's haptic abilities. We show that our robot is usable in most of the tested tasks and extract perceptive and manipulative guidelines for the design of haptic elements to be integrated in future learning activities. We conclude with limitations of the system and future work.

日本語のまとめ:

小型ロボットCelluloによる触覚フィードバックに関する調査.振動を用いて目的の位置や経路を提示し,ユーザが正しく識別できるか実験を行った.短時間の練習で,高精度の識別が可能であることを確認した.