多重解析度及多重觸控互動顯示系統之開發

隨著顯示科技及輸入技術的發展，將電腦引入日常生活的互動桌面系統(tabletop)越來越受到注目，許多研究致力於如何建構大型的高解析度顯示環境，或者新型態指觸人機互動技術的開發。基於桌面系統的需求，我們發展了指觸顯微桌－一個使用背部投影的互動示多重解析度桌面顯示系統，簡稱i-m-Top。在多指輸入方面，我們利用紅外線攝影機及和紅外線照射燈，透過影像處理的方式進行手指的偵測及追蹤；多重解析度方面，我們設計了符合人類視覺特性的顯像方式，結合一台可控制方向的投影機及一台廣角投影機，僅在使用者感興趣的局部區域提供高解析度的投影畫面，而在其他的區域則僅提供較低解析度。這樣的方式，便能夠以更符合成本效益的方式來提供一個具有高解析度顯像功能的互動桌面工作環境。然而，由於目前作業系統並沒有提供多重觸控及多重解析度的相關支援，我們發現在開發新的應用時，往往必須費心處理許多問題，例如兩台投影機之間的對應關係、多指輸入事件的處理等等，大幅增加了開發的時間，也阻礙了嶄新互動技術的發展。有鑑於此，在本研究中我們提出了一個多重觸控及多重解析度系統的軟體開發平台，透過結構化的設計，讓程式設計者可以很快地創構出新的介面及相關應用，有效減低開發的難度，並充分發揮系統所提供的特性。

關鍵字

多重解析度；多投影機；多重觸控；互動桌面；軟體開發套件

並列摘要

Advances in display and input technologies either based on electronic devices or computer vision have led to booming popularity of tabletop systems. There is a trend to use larger display with higher resolution, and to manipulate digital content by nature interactions such as direct-touch. In our previous work, we had developed a system called i-m-Top, which's able to realize an interactive high-resolution display in a cost-effective way by accommodating to human vision. The high-resolution display is achieved by combining one steerable fovea projector and one peripheral projector, and the large-ranged touch-sensing is based on diffused illumination and analyzed by computer vision technology. In this work, we continue to improve the accuracy and efficiency of touch detection. Through observing and experiencing the difficulties encountered in the development process, we further propose a software development toolkit for rapid prototyping multi-resolution and multi-touch applications, to help push forward the research on this kind of systems.

並列關鍵字

multi-resolution ； multi-projector ； multi-touch ； interactive tabletop ； software development toolkit

參考文獻

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多重解析度及多重觸控互動顯示系統之開發

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