Pixel-based small object localization method
A positioning method and small target technology, applied in the direction of image communication, color TV parts, TV system parts, etc., can solve the problems of single screen display, difficulty in monitoring and law enforcement evidence collection, limited video surveillance area, etc., to achieve accurate Effects snapped and positioned for easy viewing and sharing
Active Publication Date: 2015-11-18
中国南方电网有限责任公司超高压输电公司广州局海口分局
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For a long time, video surveillance has been mainly limited to fixed area monitoring with fixed cameras. Affected by pixels and intelligence, video surveillance has problems such as limited area, low definition and single screen display, which brings difficulties to monitoring and law enforcement.
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[0026] The content of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0027] The main equipment for realizing the present invention includes a fixed camera and a rotating camera, both of which are high-definition cameras, and can be adjusted in night vision mode and visible light mode. The fixed camera is the default main camera of the video surveillance system. It maintains a fixed azimuth and a fixed field of view. The camera position and field of view cannot be changed arbitrarily. The video screen of the fixed camera is the panoramic video that can be reached. The following operating functions:
[0028] (1) Field of view mapping: Correspond the camera’s field of view image to the corresponding geographic orientation and distance in the form of pixels, and determine the geographic orientation of each point in the image;
[0029] (2) Target frame selection: select and locate any area in the field of view...
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The invention relates to the field of video monitoring, and provides a small target locating linkage monitoring method based on a pixel by linkage of a fixed camera and a rotating camera. The small target locating method comprises two steps of capturing a target and locating a target; the step of capturing the target is as follows: triggering to start the rotating camera by selecting a panoramic video of the fixed camera; the step of locating the target is as follows obtaining an intact high-definition video picture of the located target through the rotating camera, scanning image outline points, and converting video outline point information into a chart coordinate, and projecting on a chart, creating a projection position point on the chart is created into an area object through a chart area drawing tool, directly obtaining longitude and latitude information of the position on the chart by calculating a geometric center of the area, and then setting lock monitor of a video camera on the target through the obtained longitude and latitude information of the target position to realize the real-time dynamic state. According to the method, the panoramic video picture is provided to the rotating camera through the fixed camera, and the rotating camera accurately captures and locates the chosen target.
Description
technical field [0001] The invention relates to the field of video monitoring, and realizes a pixel-based small target positioning linkage monitoring method through the linkage of a fixed camera and a rotating camera. Background technique [0002] With the rapid development of computer technology and image processing technology, in order to improve security monitoring capabilities and strengthen law enforcement, it is necessary to obtain clear and accurate surveillance video as the basis for law enforcement. The demand for video surveillance is increasing day by day. For a long time, video surveillance has been mainly limited to fixed area monitoring with fixed cameras. Affected by pixels and intelligence, video surveillance has problems such as limited area, low definition, and single screen display, which brings difficulties to monitoring and law enforcement. Therefore, a monitoring mode combining dynamic and static is needed to realize the panorama, multi-angle monitorin...
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IPC IPC(8): H04N5/232H04N7/18
Inventor 梅小卫何才豪岑贞锦陈航伟胡哲杜涛宇张胜慧蒋道宇周京吕共欣程利剑
Owner 中国南方电网有限责任公司超高压输电公司广州局海口分局