Session:「Pens, Ink, Input」

WritLarge: Ink Unleashed by Unified Scope, Action, & Zoom

論文URL: http://dl.acm.org/citation.cfm?doid=3025453.3025664

論文アブストラクト: WritLarge is a freeform canvas for early-stage design on electronic whiteboards with pen+touch input. The system aims to support a higher-level flow of interaction by 'chunking' the traditionally disjoint steps of selection and action into unified selection-action phrases. This holistic goal led us to address two complementary aspects: SELECTION, for which we devise a new technique known as the Zoom-Catcher that integrates pinch-to-zoom and selection in a single gesture for fluidly selecting and acting on content; plus: ACTION, where we demonstrate how this addresses the combined issues of navigating, selecting, and manipulating content. In particular, the designer can transform select ink strokes in flexible and easily-reversible representations via semantic, structural, and temporal axes of movement that are defined as conceptual 'moves' relative to the specified content.This approach dovetails zooming with lightweight specification of scope as well as the evocation of context-appropriate commands, at-hand, in a location-independent manner. This establishes powerful new primitives that can help to scaffold higher-level tasks, thereby unleashing the expressive power of ink in a compelling manner.

日本語のまとめ:

電子ホワイトボード上での新たなインタラクションの提案を行った.Zoom-Catcherという手法で,ボード上のテキストや画像を選択・操作可能とした.Zoom-Catcherでは,情報の共有や検索を行うActionsMenuと,画像の編集や整列を行うRepresentationsMenuを実装した.

As We May Ink?: Learning from Everyday Analog Pen Use to Improve Digital Ink Experiences

論文URL: http://dl.acm.org/citation.cfm?doid=3025453.3025716

論文アブストラクト: This paper sheds light on gaps and discrepancies between the experiences afforded by analog pens and their digital counterparts. Despite the long history (and recent renaissance) of digital pens, the literature still lacks a comprehensive survey of what types of marks people make and what motivates them to use ink-both analog and digital in daily life. To capture the diversity of inking behaviors and tease out the unique affordances of pen-and ink, we conducted a diary study with 26 participants from diverse backgrounds. From analysis of 493 diary entries we identified 8 analog pen-and-ink activities, and 9 affordances of pens. We contextualized and contrasted these findings using a survey with 1,633 respondents and a follow-up diary study with 30 participants, observing digital pens. Our analysis reveals gaps and research opportunities based on pen affordances not yet fully explored in the literature.

日本語のまとめ:

アナログペンとデジタルペン間に存在するギャップと相違について日記への書き込みをもとに調査を行い,ユーザがそれぞれのペンを用いる際の考えや認識の違いを明らかにした.

Thumb + Pen Interaction on Tablets

論文URL: http://dl.acm.org/citation.cfm?doid=3025453.3025567

論文アブストラクト: Modern tablets support simultaneous pen and touch input, but it remains unclear how to best leverage this capability for bimanual input when the nonpreferred hand holds the tablet. We explore Thumb + Pen interactions that support simultaneous pen and touch interaction, with both hands, in such situations. Our approach engages the thumb of the device-holding hand, such that the thumb interacts with the touch screen in an indirect manner, thereby complementing the direct input provided by the preferred hand. For instance, the thumb can determine how pen actions (articulated with the opposite hand) are interpreted. Alternatively, the pen can point at an object, while the thumb manipulates one or more of its parameters through indirect touch. Our techniques integrate concepts in a novel way that derive from marking menus, spring-loaded modes, indirect input, and multi-touch conventions. Our overall approach takes the form of a set of probes, each representing a meaningfully distinct class of application. They serve as an initial exploration of the design space at a level which will help determine the feasibility of supporting bimanual interaction in such contexts, and the viability of the Thumb + Pen techniques in so doing.

日本語のまとめ:

タブレットを両手で同時に用いたインタラクションの提案と調査を行った.提案手法では,左手の親指でメニューをタッチし,同時に右手でペン操作を行うことで,ペンのモード切り替えを行う.調査結果から,学習が容易であり,片手のみの操作と比べて操作時間が短縮されたことを確認した.

Experimental Analysis of Mode Switching Techniques in Touch-based User Interfaces

論文URL: http://dl.acm.org/citation.cfm?doid=3025453.3025865

論文アブストラクト: This paper presents the results of a 36 participant empirical comparison of touch mode-switching. Six techniques are evaluated, spanning current and future techniques: long press, non-dominant hand, two-fingers, hard press, knuckle, and thumb-on-finger. Two poses are controlled for, seated with the tablet on a desk and standing with the tablet held on the forearm. Findings indicate pose has no effect on mode switching time and little effect on error rate; using two-fingers is fastest while long press is much slower; non-preferred hand and thumb-on-finger also rate highly in subjective scores. The experiment protocol is based on Li et al.'s pen mode-switching study, enabling a comparison of touch and pen mode switching. Among the common techniques, the non-dominant hand is faster than pressure with touch, whereas no significant difference had been found for pen. Our work addresses the lack of empirical evidence comparing touch mode-switching techniques and provides guidance to practitioners when choosing techniques and to researchers when designing new mode-switching methods.

日本語のまとめ:

スマートフォンやタブレットなどにタッチ入力を行う際,入力モードの切り替え方法として適している方法の分析を行い,立った状態と座っている状態のどちらであっても二本の指を用いたマルチタッチが適していることを明らかにした.