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Close passenger traffic counting and passenger walking velocity automatic detection method and system thereof

A walking speed and automatic detection technology, applied in the field of computer vision, can solve the problem of low recognition accuracy and achieve accurate results

Inactive Publication Date: 2008-06-11
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the problem of low recognition accuracy in the background difference method based on plaque detection and tracking in the prior art, the purpose of the present invention is to provide a method for counting dense passenger flows and automatically detecting pedestrian walking speed based on video images

Method used

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  • Close passenger traffic counting and passenger walking velocity automatic detection method and system thereof
  • Close passenger traffic counting and passenger walking velocity automatic detection method and system thereof
  • Close passenger traffic counting and passenger walking velocity automatic detection method and system thereof

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Embodiment Construction

[0025] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] The present embodiment adopts the dense passenger flow counting based on video images shown in Figure 1 and the automatic detection method of pedestrian walking speed, and the specific implementation steps are as follows:

[0027] 1. Establishment of hardware equipment

[0028] As shown in Figure 1, the dense passenger flow counting based on video images and the automatic detection of pedestrian walking speed can adopt the hardware structure with digital signal processor DSP as the core, which is composed of acquisition module, memory and processor. Due to the complexity of the computer vision algorithm, the processing object is complex video images, and the system is required to meet real-time performance, so the selected chip must have powerful processing capabilities. Considering the above aspects, you can choose TI's TMS320DM642. The TMS32...

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Abstract

The present invention relates to a video-based method of intense passenger flow counting and automatic detection of pedestrian speed, belonging to the computer vision technical field. The present invention adopts video capture device and process algorithm. Wherein, the video image capture device captures images through completed circuit television (CCTV ), normally with a camera set over the top of entrance and exit of passage way for real-time capture of video images of passengers in and out. The processor adopts computer vision algorithm to process the captured video images and identify the faces with Adaboost algorithm, with Harr characteristics as input, weak classifier weight combination to form a strong classifier, the strong classifier to form a waterfall-like cascading. Then calculation is triggered. The walking speed calculation of pedestrians is mainly based on tracking of the faces. The tracking starts as the pedestrian faces enter the detection zone and stops as the faces exit the detection zone. The keys to the walking speed calculation of pedestrians are targeting and tracking.

Description

technical field [0001] The invention relates to the field of computer vision, in particular to a method and device for counting dense passenger flow and automatic detection of pedestrian walking speed based on video images. Background technique [0002] With the rapid development of the economy, the degree of urbanization of the population is getting higher and higher, and the population density of the city is increasing, and the problem of crowd management in some public places has become increasingly prominent. Crowd density is an important reference index to characterize the instant congestion level of a specific place, and is an important basis for effective management of public places. With the rapid development of domestic economy and large-scale passenger flow transportation, crowd counting and pedestrian The need for walking speed calculation has become more and more urgent. The traditional method of counting dense passenger flow and pedestrian walking speed is manu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62
Inventor 刘富强李志鹏祖克举王平徐尚志王新红钱业青王怡凌张姗姗
Owner TONGJI UNIV
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