簡易檢索 / 詳目顯示

研究生: 張馥麟
Chang, Fu-Lin
論文名稱: 交通監視系統之物件追蹤、陰影移除與碰撞事件偵測演算法
Object Tracking, Shadow Removal and Collision Event Detection for Traffic Surveillance System
指導教授: 戴顯權
Tai, Shen-Chuan
學位類別: 碩士
Master
系所名稱: 電機資訊學院 - 電腦與通信工程研究所
Institute of Computer & Communication Engineering
論文出版年: 2006
畢業學年度: 94
語文別: 英文
論文頁數: 49
中文關鍵詞: 交通監視陰影偵測車禍
外文關鍵詞: collision, traffic surveillance, shadow
相關次數: 點閱:162下載:3
分享至:
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報
  •   最近幾年,公共安全在我們日常生活中已經變成一個越來越熱門的話題。為了降低交通事故所帶來的損害,以影像為基礎的監視系統是被廣泛的應用來監視交通狀況。在這篇論文中,一個自動化的交通監視系統是被提出來追蹤移動物件以及偵測車禍事件。首先,先建立初始的一張背景影像,再利用背景相減的方法來擷取前景區塊。然而由於光線明亮度的改變,初始的背景影像是必須更新的,而更新的方法則是藉由之前擷取前景區塊的結果。接著,前景區塊中的陰影是基於前景像素與背景像素明亮度以及彩度的差異性來移除。然後,使用區塊質心對應的方法在連續的畫面中找出相對應的前景區塊來追蹤物件,而此系統不僅可以追蹤畫面中單獨的移動物件,也可以辨別物件間之聚合與分離的情況。最後,呈現的系統是可以應用來偵測車禍事件以及肇事逃逸的行為。

      In recent years, public safety becomes more and more important issue in our daily life. In order to reduce the damage from traffic incident, video-based surveillance system has a wide range of applications for traffic monitoring. In this thesis, an automatic traffic surveillance system is presented to track moving objects and detect the collision event. First, initial background model is built to extract the foreground regions by background subtraction and background model must be updated by the result of extracted foreground region due to illumination change of sunlight. Next, self-shadows are removed based on the information of brightness and chromaticity distortions between foreground and background pixels. Then, centroid matching strategy is used to find out the correspondence of regions in the successive frames, and the system not only can track individual moving objects, but also can discriminate the mergence and split. Final, the system can detect the collision event and troublemaker fleeing from traffic incident by proposed method.

               CONTENTS LIST OF FIGURES Ⅴ LIST OF TABLES Ⅵ CHAPTER 1 Introduction 1   1.1 Introduction of Surveillance Systems 1   1.2 Motive for Reseach 3   1.3 Organization of the Thesis 3 CHAPTER 2 Related Works 5   2.1 Foreground Region Detection 5   2.2 Foreground Shadow Removal 8   2.3 Moving Object Tracking 10   2.4 Traffic Incident Detection 12 CHAPTER 3 Proposed Object Tracking, Shadow Remval, and Collision Event Detection Algorithm 15   3.1 System Overview 15   3.2 Background Model Estimation and Foreground Region Detection 17      3.2.1 Background Model Estimation 18      3.2.2 Foreground Region Detection 20      3.2.3 Background Update 22   3.3 Shadow Removal 22   3.4 Object Tracking 27      3.4.1 Centroid Matching 28      3.4.2 Merge Detection 29      3.4.3 Split Detection 31   3.5 Collision Event Detection 35 Chapter 4 Experimental Results 37 Chapter 5 Conclusions and Future Works 44 Reference 46 Biography  49

               Reference

    [1] B.S. Manjunath, Jens-Rainer Ohm, Vinod V. Vasudevan, Akio Yamada, “Color and Texture Descriptors” IEEE transactions on circuits and systems for video technology, vol. 11, no. 6, June 2001.

    [2] Grey Welch and Gary Bishop, “An Introduction to the Kalman Filter” ACM, Inc September 1997.

    [3] Andrew H.S. Lai and Nelson H. C. Yung, “A Fast and Accurate Scoreboard Algorithm for Estimating Stationary Backgrounds in An Image Sequence” IEEE ISCAS. vol 4, June 1998.

    [4] Q. Zhou and J.K. Aggarwal,“Tracking and Classifying Moving Objects from Video,” Proceedings of IEEE Int. Workshop on PETS, 2001.

    [5] Pankaj Kumar, Surendra Ranganath, Huang Weimin, and Kuntal Sengupa, "Framework for Real-time Behavior Interpretation from Traffic Video" IEEE transaction on intelligent transportation systems, vol. 6, no. 1, March 2005.

    [6] Cucchiara, R. C. Grana, G. Neri, M. Piccardi, and A. Prati, “The sakbot system for moving object detection and tracking,” in Video-based Surveillance Systems: Computer Vision and         Distributed Processing (Part II - Detection and Tracking), Kluwer Academic Publishers, UK, 2001.

    [7] Li-Qun Xu, Jose Luis Landabaso, Montse Pardas, “Shadow Removal with Blob-based Morphological Reconstruction for Error Correction” IEEE ICASSP. vol. 4, no. 5, 2005.

    [8] Chris Stauffer and W.E.L, “Adaptive Background Mixture Models for Real-time Tracking” IEEE CVPR. vol. 2, June 1999.

    [9] Shu-Ching Chen, Srinivas Sista, Mei-Ling Shyu, and R.L. Kashyap, “An Indexing and Searching Structure for Multimedia Database Systems” IS&T/SPIE conference on Storage and Retrieval for Media Databases 2000, vol 9, January 23-28, 2000.

    [10] Harini Veerarahavan, Osama Masoud, and Nikolaos P. Papanikolopoulos, “Computer Vision Algorithms for Intersection Monitoring” IEEE transaction on intelligent transportation systems, vol. 4, no. 2, June 2003.

    [11] Lu, W. and Y. Tan, “A color histogram based people tracking system,” in Proc. IEEE intelligent systems on Circuits and Systems. May 2001.

    [12] Ching-Po Lin, Jen-Chao Tai and Kai-Tai Song, "Traffic Monitoring Based on Real-time Tracking" IEEE International Conference on Robotics & Automation. September 2003.

    [13] Jen-Chao Tai, Shung-Tsang Tseng, Ching-Po Lin, Kai-Tai Song, “Real-time Image Tracking for Automatic Traffic Monitoring and Enforcement Application” ELSEVIER Image and Vision Computing, 2004.

    [14] Stefan Atev, Hemanth Arumugam, Osama Masoud, Ravi Janardan, Nikolaos P. Papanikolopoulos “A Vision-based Approach to Collision Prediction at Traffic Intersections” IEEE transaction on intelligent transportation systems, vol. 6, no. 4, December 2005.

    [15] Clement Chun Cheong Pang, Willian Wai Leung Lam, and Nelson Hou Ching Yung “A New Method for Resolving Vehicle Occlusion in a Monocular Traffic-Image Sequence” IEEE transaction on intelligent transportation systems, vol. 5, no. 3, September 2004.

    [16] Shu-Ching Chen, Mei-Ling Shyu, Srinivas Peeta, and Chengcui Zhang “Spatiotemporal Vehicle Tracking” IEEE Robotics & Automation Magazine. March 2004.

    [17] D.M. Ha, J.-M. Lee, and Y.-D. Kim “Neural-edge-based Vehicle Detection and Traffic Parameter Extraction” ELSEVIER Image and Vision Computing 22. May 2004.

    [18] Gangyi JIANG, Shengnan WANG, Mei YU, Tae-Young CHOI, Yong-Deak KIM, “New Method of Vision Based Vehicle Detection and Tracking in Complicated Background” IEEE conference. 2004.

    [19] Surendra Gupte, Osama Masoud, Robert F.K. Martin, and Nikoloaos P. Papanikolopoulos, “Detection and Classification of Vehicles” IEEE transaction on intelligent transaction system, vol. 3, no. 1, March 2002.

    [20] N. Amamoto and K. Matsumoto, “Obstruction Detector by Environmental Adaptive Background Image Updating,” In ERTICO, editor, 4th World Congress on Intelligent Transport Systems, No. 4, pp1-7, Berlin, Oct. 1997.

    下載圖示 校內:2007-07-12公開
    校外:2007-07-12公開
    QR CODE