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A detection and counting system and method for overlooking pedestrians

A pedestrian and detection window technology, applied in the field of image processing, to achieve the effect of improving accuracy

Inactive Publication Date: 2015-09-02
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a detection and counting system for overlooking pedestrians, since there is basically no problem of occlusion between targets, so that the detection accuracy can be improved

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Embodiment 1

[0048] The invention discloses a detection and counting system for overlooking pedestrians. The invention uses a monocular camera to detect and count passing pedestrians under the state of overlooking, and is mainly used for statistics of various passenger flows.

[0049] The camera is installed on the top of the entrance and exit of the public passage, and the camera shoots down the pedestrians passing by. The biggest advantage of placing the camera in this way is that there is basically no problem of occlusion between targets. The camera is generally 3 to 10 meters away from the ground, which is a relatively short-distance pedestrian detection. Compared with the traditional head-up pedestrian detection, although the detection target is the same, the characteristics of the detection target are obviously different. Generally, pedestrians are upright hinged torsos and limbs, while pedestrians in the overhead view are moving clumps one by one.

[0050] The passenger flow detecti...

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Abstract

The invention discloses an overlook-based detection and counting system and an overlook-based detection and counting method for pedestrians. The system comprise a camera unit, a detection unit, a training unit and a judging and counting unit, wherein the camera unit is arranged at the upper end of the top of a gateway and is used for shooting the pedestrians who pass through the gateway; and the detection unit comprises a square target frame setting module, a sliding detection window (a square frame) image gradient acquisition module, an image any pixel point gradient direction value acquisition module, a subblock pixel gradient direction counting module, a subblock uniformization module and a gradient direction information in-series superposition module. According to the system and the method, the problem of occlusion between targets is solved, so that the accuracy of detection can be improved.

Description

technical field [0001] The invention belongs to the technical field of image processing, and relates to a pedestrian detection and counting system, in particular to a detection and counting system for overlooking pedestrians; meanwhile, the invention also relates to a detection and counting method for overlooking pedestrians. Background technique [0002] Nowadays, with the advancement of science and technology and the requirements of social development, pedestrian detection and counting systems need to be installed in many places. The counting system in the traditional sense mainly uses sensors, and the accuracy needs to be improved. At the same time, with the gradual development of image processing and counting, methods for counting the number of pedestrians using cameras and image processing technology have begun to appear. [0003] The existing method of detecting the number of pedestrians using image processing technology is to detect the pedestrians by looking at the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62G06K9/00G06M15/00
Inventor 唐春晖
Owner UNIV OF SHANGHAI FOR SCI & TECH