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中小城市公交视频的发展研究
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作者 沈敏善 《贵阳学院学报(自然科学版)》 2012年第3期19-21,共3页
经过多年的发展,公交视频已然成为城市生活的一部分。在公交车的封闭性空间里,公交视频的强迫传播受到了广告主的认可和青睐。然而,当大城市公交视频转身为公交电视的时候,中小城市的公交视频仍然在固步自封,徘徊不前,在他们那里赢利与... 经过多年的发展,公交视频已然成为城市生活的一部分。在公交车的封闭性空间里,公交视频的强迫传播受到了广告主的认可和青睐。然而,当大城市公交视频转身为公交电视的时候,中小城市的公交视频仍然在固步自封,徘徊不前,在他们那里赢利与服务仿佛是"鱼和熊掌"不可兼得。 展开更多
关键词 公交视频 公交电视 受众
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基于人脸重点人群识别系统设计 被引量:2
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作者 柴泾哲 马韵洁 吴艳平 《中国新通信》 2018年第3期85-85,共1页
信息化手段管控犯罪前科、在逃人员等重点人员已经成为了公安机关研究的重要方向。利用信息化手段来分析重点人员的行动踪迹,可提高公安情报人员的研判效率,基于人脸抓拍积分系统可实现对重点人员的行动踪迹和动向进行有效预警,提升公... 信息化手段管控犯罪前科、在逃人员等重点人员已经成为了公安机关研究的重要方向。利用信息化手段来分析重点人员的行动踪迹,可提高公安情报人员的研判效率,基于人脸抓拍积分系统可实现对重点人员的行动踪迹和动向进行有效预警,提升公安办案效率。 展开更多
关键词 平安公交 公交视频联网 挖掘分析
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Framework for Freeway Auto-surveillance from Traffic Video
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作者 Bo Li Qimei Chen 《Journal of Systems Science and Information》 2009年第3期215-230,共16页
Video based surveillance systems have been widely used on freeway for traffic monitoring, as the cameras can provide the most intuitionistic information. In order to manage all the traffic videos automatically, in thi... Video based surveillance systems have been widely used on freeway for traffic monitoring, as the cameras can provide the most intuitionistic information. In order to manage all the traffic videos automatically, in this paper, a distributed real-time auto- surveillance system is presented. The freeway traffic videos are taken as input video from Pan Tilt Zoom (PTZ) camera, and then produces an analysis of the states and activity of the vehicles in the region of interested (ROI), if there is any abnormal instance, an alarm and corresponding traffic video are sent to awake surveillants by Ethernet. To achieve this functionality, our system relies on three main procedures. The first one initializes the system. It detects the ROI of the scene, and performs the camera calibration to remove the perspective effect of the incoming image. The second one segments moving vehicles from the images, eliminate shadow and tracks them real-time. It uses a set of methods to obtain the background of the image, extracts the moving regions and tracks these moving regions by matching them between frames of the video sequence to obtain high-level information such as color, size, velocity, and trajectories of moving vehicles. In the third procedure, activities of vehicles are analyzed based on a series of preset situations which would happen on freeway. The detail information of each vehicle and the global statistical information are checked to find out any abnormal instance, and then triggered an alarm. We present details of the system, together with experiment results which demonstrate the accuracy and time responses. 展开更多
关键词 Auto-surveillance camera calibration shadow eliminating traffic video
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