圓柱顯示系統之多解析度投影機校正

Abstract

近年來，柱狀顯示技術在互動顯示系統中，變得更引人關注。之前 ，我們已經發展出一個名叫I-m-Top 的系統，是一個在平面顯示器上的多觸控和多解析的顯示技術。I-m-Top 系統的目的，是對於自動調校使用彩色相機的投影機來說為簡單並且有用的技術，其可以排除基礎以及沒有對準的問題。I-m-Tube 是一個類似的系統，其可以實現沒有阻礙的90 度多解析資訊顯示，以及多點觸控互動。在此篇論文中，我們想要投射影像到一螢幕上，使其具有貼上有影像之壁紙到螢幕上的效果。此系統也可以創造出直觀且自然的背景，以用於藉由觸碰而具有在柱狀表面上之多媒體內容顯示的多使用者互動。因此，I-m-Tube 在設計上會遇到下列的重點：(1)貼影像壁紙到柱狀螢幕上的效果；(2)自動校正投影機；以及(3)高解析度的顯示在使用者的互動區域。我們的目的是對於自動調校使用彩色相機的投影機來說是簡單並且有用的技術，以幫助投影機消除基礎以及無法對準的問題。

Cylindrical display technology has recently become increasing attention for designing an interactive display system. In the previous work, we had develop a system called i-m-Top[1], which is a multi-touch and multi-resolution display technique on planar display. I-m-Top system proposed a convenient and useful approach to automatically calibrate the projectors using a color camera, to eliminate keystone and misalignment problems. Similar to this system is I-m-Tube, which is a system to realize an unobstructed 900 multi-resolution information display and multi-touch interaction. In this paper, we want to project image to the screen that has an effect like wallpapering the image on the screen. This system also making it possible to create an intuitive and natural context for multi-user interaction with multimedia content displayed on the cylindrical surface by touch. Therefore I-m-Tube design meets the following concerns : (1) The effect of wallpapering image on cylindrical screen, (2) Automatically calibrate the projectors, and (3) Displaying high resolution at the user’s interesting area. We proposed a convenient and useful approach to automatically calibrate the projector using a color camera, to help the projector eliminate both keystone and misalignment problem.