- 學位論文
搭配PTZ攝影機之監控保全系統
An Abnormal Detection Surveillance System with PTZ Camera
摘要
近年來社會犯罪案件頻繁，銀行、超商及住家…等的搶案不斷發生，為能減低及嚇阻犯罪案件的增加，監控系統的存在，就彰顯出其極其重要性。而拜科技進步所賜，監視器材來的比以往更為精密及便宜，其也使得監控保全方面的系統能以大量的開發。然而，極大部份的監控系統仍然是以靜態的方式來進行固定視角的定點偵測，但是這樣的方發卻有著監測死角的問題；相反的，為能進行更寬廣的監控範圍，其則必須加裝更多的監視器，以求能解決監控死角的問題。只是，成本需求必然可觀。 也因此，為能解決固定監控視角及成本兩者問題，本論文提出一套結合PTZ (Pan/Tilt/Zoom, PTZ)攝影機的智慧型自動監控保全系統。在本系統中，則是利用PTZ攝影機拍攝所需監測的局部環境影像，其次，利用影像接合技術，以合併起PTZ攝影機所拍攝的各個角度的影像，之後，則是針對接合起的全景影像來進行相關的特徵資訊分析。而為了能分辨出監測環境中是否有存在異常物體，系統則是透過CBIR技術來進行即時影像與全景影像之間的比對，藉由比對的結果來判斷PTZ攝影機目前所在的監控位置，並藉由影像相減來得到兩張影像之間的差別。一旦系統取得異常物體，則會立刻對異常物體進行追蹤程序或者辨識之用。
並列摘要
The social crime case is frequent in recent years, the robing cases of bank, ultra trader and household, etc. are happenning constantly, in order to lower and frighten the increase which hinder the crime case, the existence of the monitoring system, show its importance deeply clearly. And visit the scientific and technological progress to grant, monitor whom apparatus come than in the past more accurate and cheaper, it make it save from damage system of can be with a large amount of development not to control too. But, extremely most monitoring systems remain and carry on detecting examining by fixed position of regular visual angle by way of static behavior, but such a square hair has a question of monitoring the dead angle; on the contrary, in order to carry on more broad control range, its must install more monitors additional, in order to solve the problem that control the dead angle. Just, the demand of the cost must be considerable. In order to solve and control the visual angle and the two problem of cost regularly, this thesis proposes one set accords with PTZ (Pan/Tilt/Zoom, PTZ) Controlling the system of saving intelligently from damage automatically of the camera. In this system, utilize PTZ camera to shoot local environment images needed to monitor, secondly, utilize joint technology of the image, in order to amalgamate the image of all angles that PTZ camera shoots, later, it was the panoramic image of getting up to the joint that carried on relevant characteristic information analysis. And in order to say whether to have unusual object in the environment of monitoring or not, the system is through right compared with the panoramic image that CBIR technology carries on the instant image, than right result come in control position, and reduce and get the difference between two images with the image. Obtain unusual object systematically, can is it use to go on procedure of tracking or distinguish to unusual object at once.