隨著科技的進步和高齡化社會的到來，居家安全監控漸漸受到重視。當發生意外時，無法立即通知監控人員而造成人員損傷，所以本論文以開發一套獨立式老人居家安全即時監控系統為目的，並且搭配3G手機可以讓監控者在任何地方都可以即時監視到目前監控畫面。數位訊號處理器（Digital Signal Processor , DSP）具有體積小、高速率和獨立運作的優點，因此本系統採用德州儀器之TMS320DM642 DSP為開發平台，搭配PTZ(Pan/Tilt/Zoom)攝影機來實現旋轉與縮放PTZ攝影機使目標物保持在畫面中。首先，系統會將擷取影像與背景影像做相減萃取出目標物影像，再將目標物的二值化影像建立其姿態骨架，接著使用向量量化法進行姿態分析，最後將其影像透過乙太網路傳送至遠端電腦，使得監控者可以使用電腦和3G手機去監視目前畫面，以達到即時的居家安全監控系統。

The technology is improved day by day, and advanced age society is coming, the home safety surveillance system is used wildly. When the accident happened, the monitoring personnel can not be informed immediately leads to injury of the people, therefore the purpose of this thesis is to implement an real-time home safety surveillance system for elderly using stand-alone surveillance system to reduces the personnel casualty, furthermore the monitoring personnel can watch current image by 3G mobile phones any time. The Digital Signal Processor (DSP) has many benefits such as high speed, small size and standalone, for this reason, we use the TI’s TMS320DM642 DSP module as our research developing platform, and with PTZ camera that can use the pan, tilt and the zoom function to make the target stay in the frame. At first, we use the background subtraction to extract the target image from input image, secondly, estimate the posture skeleton from the binary image of the target, and than use the vector quantization to analysis the target’s posture, finally, we can transmit the image to the remote computer, the monitoring personnel can use computer and 3G mobile phones to watch current image, hereby develop a real-time home safety surveillance system.

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