研製可調觸控樣式的實體使用者介面

Abstract

TUI以人們現實生活中的實體物件作為人與數位世界的互動介面，讓使用者直覺依照實體物承擔特質與過往經驗進行互動與操作，創造出感更具感受力的互動體驗。伴隨觸控螢幕普及，在多指觸控裝置上結合TUI應用成為發展趨勢，相關應用廣泛出現於兒童教具、互動遊戲、個人工作情境、合作學習活動、商業應用等領域。眾多在多指觸控裝置上實作TUI的方法中，以電容式辨識技術製作互動實體物的方式，最具有製作方法簡單快速以及成本非常低廉的優勢，適合各個程度的創作者進行實作開發。然而以往研究所提出的辨識樣式規則設計中，代表單一實體物的一組辨識樣式需要佔用過多的觸控點位，限制了同一時間可以在平板電腦上使用互動實體物的個數，而大幅限縮內容與互動設計的彈性，導致TUI的優勢與價值無法真正發揮。因此，本研究設計出一套電容式辨識技術的辨識樣式規則，使得每個互動實體物的感知、辨識與狀態追蹤僅需使用到三個觸控點便能達成。此外，再加上動態可調式機構的模型設計，幫助開發者可以在創作過程中能在代表不同實體物的辨識圖樣之間快速切換，以利進行相關測試，並且製作相對應的軟體開發工具包，整合成為成套工具，降低開發時的技術門檻，讓開發者只需要具備基本的應用程式開發知識，就可以開始實作TUI與觸控裝置結合的數位互動應用。最後將兩者整合成TUI結合平板電腦的成套工具開放資源，提供給TUI的創作者們取用，為他們帶來更順暢的創作歷程。

In tangible user interface (TUI) users interact with digital world through the physical objects. Because of affordance of objects, interaction with TUI always brings impressive experience. With the popularity of multi-touch screen, implementing TUI design on multi-touch devices has become a growing trend. Among lots of implementation methods, design touchpoint patterns representing tangible object on capacitive screen is the simplest for developers. However, the touchpoint patterns design published so far consisted of too much touchpoints, so users can only interact with one or two tangible objects on a tablet at the same time. Thus, we design a rule of tangible object identification patterns which only consist of three touchpoints. Besides, we add reconfigurable mechanism into the model of the touchpoint patterns design, so the developers can easily switch between touchpoint patterns representing different tangible object during development. We also provide software development toolkit integrating functions such as sensing, identification and operation of tangible objects on tablets. With providing our touchpoint patterns design and toolkit as open source, we hope to bring smooth TUI development experience on multi-touch devices to developers.