The Implementation of Realtime Image Tracking on IP Camera

• Main Authors: Hsin-Kuo Chen, 陳信國
• Other Authors: Tai-Wen Yue
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/53802636613935804425

碩士 === 大同大學 === 資訊工程學系(所) === 96 === This thesis presents the technology of object tracking for network camera. The network camera will track the moving object so as to keep it in the center of camera view. This thesis includes two main topics. The first is to determine the center of the moving object using image-processing technique. The second is the motor control of the camera. The camera will sweep to the right position automatically so as to center the moving object. The main strategies of image processing are summarized as follows: i) converting the RGB color representation to YUV representation to retrieve luminance of captured image; ii) sub-sampling of image to reduce the computation complexity of image processing; iii) Find out the moving part in the continuous images by computing their differences and, then, using the so-called movement energy method to calculate central position of the moving object; and iv) using morphological filtering to reduce background noise.. This project was developed in an embedded system. Because such a system is intrinsically in a lower capacity, reducing the amount of computation needed is important. Furthermore, to get balance between operation speed and accuracy of tracking is another important consideration of this research.