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Pedestrian counting method and device based on human head top recognition

A technology of the top of the head and pedestrians, applied in the field of image recognition, can solve the problems of pedestrian false detection, failure to provide, missed detection, etc., and achieve the effect of improved extraction and accurate statistics

Inactive Publication Date: 2017-03-22
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for counting pedestrians based on the identification of the top of the human head, aiming at solving the problem of reduced detection accuracy of the human head due to the inability of the prior art to provide an effective method for identifying the human head. Pedestrian false detection or missed detection often occurs

Method used

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  • Pedestrian counting method and device based on human head top recognition
  • Pedestrian counting method and device based on human head top recognition
  • Pedestrian counting method and device based on human head top recognition

Examples

Experimental program
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Embodiment 1

[0026] figure 1 It shows the implementation process of the pedestrian counting method based on the recognition of the top of the human head provided by Embodiment 1 of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0027] In step S101, the depth image of the pedestrian captured by the depth camera is read, and the depth image of the pedestrian is compared with a pre-acquired average value image of the environment to obtain a foreground image of the depth image of the pedestrian.

[0028] The embodiment of the present invention is applicable to a computer device or system for counting pedestrians or people flow, so as to realize the counting of the number of pedestrians. In the embodiment of the present invention, firstly, the depth camera is used to photograph pedestrians to obtain a depth image of the pedestrian, and then the depth image of the pedestrian...

Embodiment 2

[0048] figure 2 It shows the implementation process of the pedestrian counting method based on the recognition of the top of the human head provided by the second embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0049] In step S201, the pedestrian depth image captured by the depth camera is read, and the pedestrian depth image is compared with a pre-acquired environment average image to obtain a foreground image of the pedestrian depth image.

[0050] The embodiment of the present invention is applicable to a computer device or system for counting pedestrians or people flow, so as to realize the counting of the number of pedestrians. In the embodiment of the present invention, firstly, the depth camera is used to photograph pedestrians to obtain a depth image of the pedestrian, and then the depth image of the pedestrian is compared with the pr...

Embodiment 3

[0067] Figure 4 It shows the implementation process of the pedestrian counting method based on the recognition of the top of the human head provided by the third embodiment of the present invention. For the convenience of explanation, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0068] In step S401, the pedestrian depth image captured by the depth camera is read, and the pedestrian depth image is compared with a pre-acquired environment average image to obtain a foreground image of the pedestrian depth image.

[0069] In step S402, the foreground image is divided into multiple regions.

[0070] In step S403, it is detected whether there is a step in the edge pixel points of each area in the multiple areas.

[0071] In step S404, when there is a step in the edge pixel points of the current detected area, m points are taken on the edge of the detected area, and the m points are not adjacent to each other on the ...

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Abstract

The invention is applicable to the technical field of image recognition, and provides a pedestrian counting method and a device based on human head top recognition. The method comprises steps: a pedestrian depth image photographed by a depth camera is read, the pedestrian depth image is compared with an environment mean image acquired in advance, and a foreground image is obtained; the foreground image is segmented to multiple areas, whether step exists in edge pixel points in each area is detected, and whether the area curved surface formed by each area is consistent with the human head top curved surface is detected; when step is detected to exist in the edge pixel points in the detected area and the area curved surface formed by the detected area is detected to be consistent with the human head top curved surface, the current detected area is determined to be the human head top area. According to the human head top area determined in the pedestrian depth image and a human head top area determined in an adjacent pedestrian depth image, the pedestrian number is counted and outputted, the human head top recognition accuracy is improved, and accurate pedestrian counting is realized.

Description

technical field [0001] The invention belongs to the technical field of image recognition, and in particular relates to a pedestrian counting method and device based on recognition of the top of a human body. Background technique [0002] With the rapid development of the economy, the role of the city is increasing day by day, and the urban population is also increasing. In order to effectively protect the safety of the urban population, it is necessary to count the number of people in shopping malls, railway stations and traffic intersections, so that relevant areas can set up effective safety plans to deal with emergencies. Criteria are provided for population flow. [0003] The basis of people counting is the recognition of the whole person or a certain part of the human body. In order to avoid missed detection and false detection caused by occlusion, the camera generally adopts vertical shooting. The best human body recognition part is the head area. The conventional met...

Claims

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Application Information

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IPC IPC(8): G06T7/11G06T7/194
CPCH04N5/33G06T7/11G06T7/194G06T7/20
Inventor 张勇刘磊陈泽虹赵东宁陈剑勇李岩山
Owner SHENZHEN UNIV