現今科技的進步和網路的發達，越來越多的課程錄影及演講影片被上傳，讓世界各地的人透過影片學習。傳統的方法為利用攝影機記錄整個場景，但會讓觀看者找不到重點，或請專業人員對影片剪輯後製，或雇傭攝影師拍攝，這些方法都需要額外人力成本，且成果會因為操作技術而參差不齊。因此，本論文提出了一個教室視訊錄製輔助系統，包含了自動的人物偵測與人物追蹤架構，不須額外人力即可方便的紀錄影片，並結合了ePTZ(electronic Pan-Tilt-Zoom)處理技術，可將影片特寫在老師上，同時錄下桌面的投影片畫面，與老師特寫畫面一同播放，當老師寫白板時，將老師特寫影片切換至預設的白板區域，幫助觀看者更輕易抓到影片重點。最後結合輔助教學平台，讓影片能夠自動上傳且分門別類，省去額外的人力管理成本。

In recent years, class recording plays a key role in e-learning. Most of them use a camera to record both the teacher and the screen. Although it’s a convenient and intuitive method, it lacks of focus. In addition, it’s difficult to discern the words on the blackboard clearly when the video covers whole scenes. Hence, in this thesis, we proposed a video recording system for classroom to automatically record the teacher and the desktop screen in two videos simultaneously. Furthermore, the video will enlarge the region of blackboard when the system detected the teacher chalking down on the blackboard. This allows the viewers to have more effective learning.

論文審定書 i
摘 要 ii
Abstract iii
目 錄 iv
圖 目 錄 v
表 目 錄 vi
第一章 簡介 1
第一節 論文概述 2
第二節 論文貢獻 2
第三節 論文架構 2
第二章 文獻探討 3
第三章 研究方法 5
第一節 人物偵測 6
第二節 人物追蹤 9
第三節 目標改正 13
第四節 動作辨識 15
第五節 錄製管理系統 16
第四章 系統建置 21
第五章 結論 26
參考文獻 27

[1] Arvind Rajpurohit, Ankit Agarwal, Mayur Gaikwad, Kapil Garg and Vahid Inamdar, "Securing Public Places Using Intelligent Motion Detection," IEEE International Conference on Engineering Education: Innovative Practices and Future Trends, pp. 1-4, 2012.
[2] Gunnar Farneb¨ack, "Two-Frame Motion Estimation Based on Polynomial Expansion," Image Analysis Lecture Notes in Computer Science, vol. 2749, pp. 363-370, 2003.
[3] Fan-Chieh Cheng and Shanq-Jang Ruan, "Accurate Motion Detection Using a Self-Adaptive Background Matching Framework," IEEE Transactions on Intelligent Transportation Systems, pp. 671-679, 2012.
[4] Suman Kumar Choudhury, Pankaj Kumar Sa, Sambit Bakshi and Banshidhar Majhi, "An Evaluation of Background Subtraction for Object Detection Vis-a-vis Mitigating Challenging Scenarios," IEEE Access, vol. 4, pp. 6133-6150, 2016
[5] Hasup Lee, HyungSeok Kim and Jee-In Kim, "Background Subtraction Using Background Sets With Image- and Color-Space Reduction," IEEE Transactions on Multimedia, vol. 18, no. 10, pp. 2093-2103, 2016
[6] Jean-Yves Bouguet, "Pyramidal Implementation of the Lucas Kanade Feature Tracker Description of the Algorithm," Intel Corporation, 2001.
[7] Navneet Dalal and Bill Triggs, "Histograms of Oriented Gradients for Human Detection," IEEE Computer Society Conference on Computer Vision and Pattern Recognition, vol. 1, pp. 886-893, 2005.
[8] Mohib Ullah, Faouzi Alaya Cheikh andAli Shariq Imran, "HoG Based Real-Time Multi-Target Tracking in Bayesian Framework," IEEE Intermational Conference on Advanced Video and Signal Based Surveillance, pp.416-422, 2016
[9] Faliang Chang, Guoqiang Zhang, Xiaolin Wang and Zhenxue Chen, "PTZ Camera Target Tracking in Large Complex Scenes," World Congress on Intelligent Control and Automation, pp. 2914-2918, 2010.
[10] Pankaj Kumar, Anthony Dick and Tan Soo Sheng, "Real Time Target Tracking with Pan Tilt Zoom Camera," Digital Image Computing: Techniques and Applications, pp. 492-497, 2009.
[11] Dorin Comaniciu, Visvanathan Ramesh and Peter Meer, "Kernel-Based Object Tracking," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 25, no. 5, pp. 564-577, 2003.
[12] Chun-Te Chu, Jenq-Neng Hwang, Fellow, Hung-I Pai and Kung-Ming Lan, "Tracking Human Under Occlusion Based on Adaptive Multiple Kernels With Projected Gradients," IEEE Transactions on Multimedia, vol. 15, no. 7, pp. 1602-1615, 2013.
[13] Xiangxin Zhu and Deva Ramanan," Face detection, Pose Estimation and Landmark Localization in the Wild," IEEE Computer Vision and Pattern Recognition, pp. 2879-2886, 2012
[14] S.Santhosh Kurmar, Mala John, "Human Activity Recognition using Optical Flow based Feature Set," IEEE International Carnahan Conference on Security Technology, pp. 1-5, 2016
[15] Rein-Lien Hsu, Mohamed Abdel-Mottaleb and Anil K. Jain, "Face Detection in Color Images" IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 24, no. 5, 2002
[16] Ming-Hsiang Su, Bo-Yen Wang, Yuan-Hsun Liao and Pao-Ta Yu, " The new course recording method based on the teaching signature design for enhance students' learning motivation," Information Technology in Medicine and Education, vol 1. pp. 11-15, 2012
[17] Avail at http://en.szreach.com/bee9/