小面積定位-以影像辨識之筆式輸入為例

POSITIONING ON SMALL AREA FOR IMAGE-BASED PEN COMPUTING

林瑞廷(Jui-Ting Lin)

指導教授 ： 湯政仁

大同大學/電機資訊學院/通訊工程研究所/碩士(2006年)

摘要

在本篇論文提出一個利用影像辨識技術來實現小面積平面定位。這個方法是利用架設於平面旁的相機擷取影像，經由影像處理與分析，來獲得觀測物在平面上的實際位置。精準地找到定位目標點對人機介面應用中的輸入設備而言，是其中一項關鍵技術。許多利用影像視覺技術來進行定位的研究，多半採取正面取得影像的方式來進行定位分析。從實現或是使用的觀點來看，這樣的設計方式會帶來許多限制。這個研究提供一個利用觀測物的側面所擷取影像資訊，來實現一個小面積定位技術，它亦可提供筆式輸入硬體利用影像技術的一個新的設計方式。

關鍵字

筆式輸入 ； 影像處理

並列摘要

This paper presents an image-based method for positioning a target point on a small area. The method locates the target point by analyzing the images captured from the area-associated cameras. Precisely detecting a target point on an area is one of the key points for the human computer interactive applications such as the pen-based computing input devices. Some researchers use the image-based techniques to locate the target point. The existing approaches that utilize the image-based techniques locate the target point by analyzing the images from the hanging cameras on the top of the area. There are quite restrictions on realizing or using. The image-based method proposed in this paper provides a novel design for the pen-based input device.

並列關鍵字

pen computing ； image-based

參考文獻

[4]M. Krueger, “VIDEOPLACE—an artificial reality,” In Conference on Human Factors in Computing Systems. pp. 35-40, 1985.

[6]P. Wellner, “Interacting with Paper on the DigitalDesk,” Communications of the ACM, pp. 86-96, July 1993.

[7]Brad A. Myers, “A Brief History of Human Computer Interaction Technology,” ACM interactions. Vol. 5, no. 2, pp. 44-54, March 1998.

[8]Rafael C. Gonzalez and Richard E. Woods, “Digital Image Processing.” Prentice-Hall Inc. Upper Saddle River, New Jersey 07458. pp. 572-591, 2002.

[11]J. Subrahmonia and T. Zimmerman, “Pen computing: challenges and applications,” Pattern Recognition, 2000. Proceedings. 15th International Conference on Volume 2, pp. 60-66, 2000.