「友善介面」一直是人機介面研究不斷追求的目標，希望可以帶給使用者更簡單、更方便、更直覺的使用介面。隨著軟硬體技術不斷增進，人機介面研究領域亦伴隨著重大發展。從早期的命令列模式，到現在圖形化介面；從接觸式近距離操控，到非接觸式遠距操控。而非接觸式遠距操控雖較直覺，但若以影像辨識技術實作，則可能會有動作無法精確細緻、不適合黑暗環境，以及侵犯使用者隱私等問題。若改以加速度感測器實作，則又因為手持裝置有一定的重量，而導致該方法不適合長時間使用。

本研究利用Wii remote的紅外線定位功能，故能實現在黑暗環境中以輕巧裝置進行非接觸式操作。然而在單一訊息通道的限制下，如何經由互動介面的設計來實現選取功能，進而達到選單瀏灠，是此操作模式的一個重要議題。紅外線是一種成本便宜而成熟的技術，本論文針對此議題提出了五種非接觸式指向操作介面的選取方法，可以在上述限制下實現樹狀選單瀏覽，並將部份設計實作於一展示系統中。

Friendly user interface has long been the research goal for both academic and industrial communities of human computer interaction. With the advances of software and hardware technologies, more intuitive ways of interaction, including multi-touch and body controls, were invented. Though such methods as Kinect can release the constraint of contact surface for such directional methods as mouse or multi-touch, they are however more expensive generally, and might invade users' privacy because they need acquire users' images. Some methods utilize G-sensors, but the weights of the devices prohibit them from being continuously used for a long period of time.

This paper makes use of the location function with infrared signals provided by Wii remote to realize a contactless user interface for menu selection. Five modes of interaction were proposed to overcome the constraint of single message channel for the infrared signals. The control device could be as light as a pen, while the operation could be accomplished even in a dark room. A prototype system for controlling both the menu selection and the slides playing was built successfully to verify the validity of the interface design.

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http://www.nintendo.co.jp/
[17] XCM Light Gun for PS3
http://www.youtube.com/watch?v=q-BnXUvvcog
[18] Light keyboard
http://chinese.engadget.com/tag/Light%20Touch
[19] Fingertip Tracking
http://www.youtube.com/watch?v=e5rDnSeRzwA
[20] Low-Cost Multi-touch Whiteboard using the Wiimote
http://www.youtube.com/watch?v=5s5EvhHy7eQ
[21] Don’t Click It
http://www.dontclick.it/
[22] WiiUseJ
http://code.google.com/p/wiiusej/