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Pedestrian evacuation track component separation method

A separation method and pedestrian technology, applied in image analysis, image data processing, instruments, etc., can solve the problems of large difference in results, unavoidable sampling of pedestrian swing components, and inability to separate the three components of pedestrian evacuation trajectory data, etc. full effect

Pending Publication Date: 2021-10-01
UNIV OF SCI & TECH OF CHINA
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the perspective of sampling law and smoothing results, this method cannot avoid the sampling of pedestrian swing components, and the difference between the best and worst results of the algorithm is large, so that the reconstructed pedestrian trajectory appears near some sampling points. Abnormal jitter phenomenon, or even completely unable to remove the wobble effect
[0008] The existing technologies mentioned above cannot separate the three components in the pedestrian evacuation trajectory data well, and cannot adapt to different research needs

Method used

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] An embodiment of the present invention provides a method for separating components of pedestrian evacuation trajectories, such as figure 1 As shown, it mainly includes:

[0030] Step 1. Collect pedestrian evacuation trajectory data from video data.

[0031] While the pedestrian and evacuation dynamics evacuation experiment is carried out, the pedestrian evacuation process is recorded by recording video, and then through tracking or detectio...

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Abstract

The invention discloses a pedestrian evacuation track component separation method, which is more complete in track separation process, additionally estimates noise components, extracts stepping swing components, and can obtain richer multi-component data, thereby realizing separation of different components in a pedestrian evacuation track. The separated different components can be used for independent scientific research requirements and can also be combined with each other to meet evacuation data analysis requirements of different working conditions.

Description

technical field [0001] The invention relates to the technical field of pedestrian and evacuation dynamics, in particular to a method for separating components of pedestrian evacuation trajectories. Background technique [0002] Pedestrian evacuation trajectory data obtained through video tracking, wireless tag positioning, and optical motion capture are often the result of a mixture of multiple components, mainly including the main motion component that characterizes pedestrian motion intentions, and noise components introduced by algorithms, sensor errors, or human intervention. And the periodic step swing component introduced by the pedestrian step. When carrying out pedestrian and evacuation dynamics research, pedestrian evacuation data coupled with different components will bring difficulties to the analysis of evacuation data. It will seriously reduce the stability of the velocity. For example, when using the pedestrian motion velocity to carry out the research on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/246G06Q50/26G06T5/00
CPCG06T7/246G06Q50/26G06T2207/10016G06T5/70
Inventor 夏龙赵雪丹宋卫国
Owner UNIV OF SCI & TECH OF CHINA