A Method of Monitoring Pedestrian Counting Based on Overhead Camera
A pedestrian counting and camera technology, applied in the field of computer vision and pattern recognition, can solve the problems of affecting real-time performance, time-consuming, difficulty in tracking a single target, etc., to achieve the effect of improving efficiency, reducing the amount of calculation, and monitoring the environment with little impact.
Active Publication Date: 2016-08-10
SHANGHAI JIAOTONG UNIV
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Problems solved by technology
[0006] In the existing monitoring and counting methods, it is usually based on tracking each pedestrian, but in a crowded scene, it will become very difficult to track a single target
There is also a clustering method based on the current frame, but if the clustering operation is performed for each frame, the system will consume a lot of time and affect real-time performance
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[0041] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0042] The present invention provides a method for monitoring and counting crowded scenes based on an overhead camera. The method first calculates the accumulation of the foreground in the scene on the discrimination line within a period, and then uses the clustering method to estimate the accumulated time-space matrix. The number of pedestrians, so as to realize the accurate counting of pedestrians in crowded scenes.
[0043] like figure 1 As shown, the requirements for the installation location...
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The invention discloses a pedestrian counting monitoring method based on a head top camera. Firstly pedestrians are extracted through a foreground detection method, then foreground pixel coordinates on a judgment straight line in a frame are accumulated, and finally the counting aim is achieved through clustering the coordinates. Compared with the existing method, the monitoring pedestrian counting method enables the counting space to be transferred to a time accumulated plane from the current frame obtained by camera shooting. The number of pedestrians can be obtained through the number of categories obtained by clustering a foreground point in the time accumulated plane. A test proves that the monitoring pedestrian counting method is good in effect when the pedestrian density is high and the scene is crowd, and meanwhile can obtain the satisfied counting effect when pedestrians are sparse.
Description
technical field [0001] The invention belongs to the field of computer vision and pattern recognition, and in particular relates to a new method for monitoring and counting pedestrians in a crowded scene based on an overhead camera. Background technique [0002] In the field of computer vision, the number of applications for video surveillance counting is increasing. Especially in the field of intelligent transportation, it is necessary to count the specific number of people passing through a certain area within a certain period of time in order to arrange public transportation reasonably. The number of pedestrians in public areas is generally large, and the cost of manual counting is high, and the counting accuracy cannot be guaranteed when the flow of people is large, so it is necessary to use video surveillance technology to achieve statistical analysis of pedestrians. [0003] At present, there are many systems for monitoring and counting, using various methods, but most...
Claims
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IPC IPC(8): G06T7/00G06T7/20G06M11/00
Inventor 俞中杰杨杰
Owner SHANGHAI JIAOTONG UNIV