标题: | 三维空间多摄影机视觉监控系统 3D Visual Surveillance System with Multiple Cameras |
作者: | 黄聿文三 Yi-Wen Huang 陈稔 Zen Chen 资讯科学与工程研究所 |
关键字: | 监控系统;Visual Surveillance |
公开日期: | 2001 |
摘要: | 近年来,由于数位影像处理技术的进步,各种相关应用也随之发展,其中之一即为视觉监控系统(Visual-based surveillance system)。在本篇论文中,我们利用一般监控用摄影机对场景进行监控,将目前影像与背景影像配合向量线性相依(Linear dependence of vector)原则比对得到影像内新植入的目标物,并杂讯、阴影等造成的影响进行清除处理。而后藉由相机校正的程序得相机的内部参数K及外部参数R、T。根据这些相机参数进一步推算目标物的三维座标资讯,并利用这个三维座标指挥另一部校正好的相机进行目标物锁定与特写。将来进一步发展,可以进行三维目标物的追踪及事件分析的工作。 Recently, digital image processing technology has made great progress; there are tons of applications about it. One major application is the digital visual surveillance system. In this thesis, we want to monitor the scene with commercial cameras, detect moving object in the image by comparing the current image and background image, and reduce the effects of noise or shadow as much as possible. We calibrate our cameras, to obtain the intrinsic parameter K and extrinsic parameters R, T. With these parameters we may compute the 3D world coordinate of the object and control another calibrated camera to take a close-up picture of that object later. In the future, we are going to monitor a sequence of images to track the moving object and analyze the history of object motion for activity analysis. |
URI: | http://140.113.39.130/cdrfb3/record/nctu/#NT900392068 http://hdl.handle.net/11536/68478 |
显示于类别: | Thesis |