近年來由於恐怖攻擊事件頻傳以及犯罪率的上升，影像監控系統被廣泛的被應用在各種公共場所之中。在過去的相關文獻，大多針對如何在場景中，偵側遺留物與遺失物做相關的研究，而本論文中所發展的自動偵測遺留物持有者與遺失物擷取者的監控系統，不僅能找出場景中誰是遺留物的持有者以及遺失物的擷取者，並且擁有記錄下事件關鍵影像的能力。因此，系統使用數位訊號處理器配合雙攝影機的架構，其中數位信號處理器是使用德州儀器(Texas Instrument)之TMS320DM642 DSP為開發的平台，雙攝影機架構中，是使用場景攝影機搭配PTZ(Pan, Tilt, Zoom)攝影機，經由場景攝影機所擷取的畫面資訊，可以偵測出遺留物持有者以及遺失物擷取者，經由座標轉換的方式，將PTZ攝影機引導至持有者或是擷取者的座標位置，並且持續追蹤。遠端監控人員可以隨時透過遠端監控介面，了解場景中的偵測狀況，也可以操作遠端監控介面，控制PTZ攝影機追蹤鎖定靜態目標物或是持有者，還有切換不同事件的關鍵影像。如此便能達到智慧型自動遺留物的持有者以及遺失物的擷取者之監控系統。

Due to the threat of terrorism and increasing crime recently. The visual surveillance systems are widely applied in public spaces. In this thesis, we provide a solution which can detect the owner of abandoned object and stolen object automatically. Different from previous works on this topic which are mostly limited to detecting abandoned object and stolen object. The proposed system is not only find out event’s owner but also capture key frame of abandoned and stolen event. Therefore, we will combine TI TMS320DM642 evaluation module with dual-camera module that can detect owner of abandoned object and stolen object. The field camera is responsible for detecting the owner of abandoned and stolen object. via coordinates transformation. The PTZ camera can be guided to track event’s owner. Consequently, the surveillant can monitor the environment remotely via the internet transmission. They can also select for many functions in the user interface. For instance, control the PTZ camera to track the static object or moving owner, and change key frame in different event. Hence, developing an intelligent public surveillance system for detecting the ownership of abandoned object and stolen object.

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