权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Studies on Remote Surveillance by Cameras

摄像机远程监控研究

基本信息

批准号：
12680420
负责人：
FURUKAWA Ryo
金额：
$ 2.37万
依托单位：
Hiroshima City University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2001
项目状态：
已结题

项目摘要

Unceasing surveillance are sometimes needed on sites like nuclear power plants, transformer substations, or parking areas. Although the job is now normally done by humans monitoring views from surveillance cameras, the monotonous work causes physical fatigue and mental stress. In this research, basic studies on surveillance aiding systems are done. The following are the studies :1. We developed methods for detecting moving regions, applying background/interframe subtraction method even while the background of the view is moving by rotation, of pan-tilt cameras. To do this,we constructed projection image to virtual cylinder screen, applied template-matching for multiple templates, estimating translation of background by voting, and compensate the background translation.2. We proposed new methods for efficiently recording and searching spatio-temporal events using data structure called PMD-tree. Test results of the performance was also presented.3. Displaying sites under surveillance by 3D CG can be helpful for observers. We proposed methods for constructing 3D virtual environment from several photos, and constructing 3D virtual deformable object model from large number of views.4. To learn and classify spatio-temporal event patterns, we proposed graph representation that includes layout information and developed algorithm for extracting frequent patterns.

在核电站、Transformer Substation或停车场等场所，有时需要不间断的监视。虽然这项工作现在通常是由人类通过监控摄像头监控视图来完成的，但单调的工作会导致身体疲劳和精神压力。本研究主要是对监控辅助系统进行基础性研究。以下是研究内容：1。我们开发了用于检测移动区域的方法，应用背景/帧间减法，即使在视图的背景通过旋转移动时，云台相机。为此，将投影图像构造到虚拟柱面屏幕上，对多个模板进行模板匹配，通过投票估计背景平移，并对背景平移进行补偿.我们提出了新的方法，有效地记录和搜索时空事件使用的数据结构称为PMD树。并给出了性能测试结果. 3D CG监视下的活动场所对观察者有帮助。提出了从多张照片构建三维虚拟环境的方法，以及从大量视图构建三维虚拟变形物体模型的方法.为了学习和分类时空事件模式，我们提出了图表示，包括布局信息和开发的算法提取频繁模式。