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Pedestrian intention detection method and system

A detection method and detection system technology, applied in the field of target tracking and target behavior analysis, can solve problems such as waste of road resources, unreasonable use of road resources, inconvenience to pedestrians, etc., and achieve the effect of improving traffic efficiency

Inactive Publication Date: 2017-12-01
深圳市鸿逸达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The traffic flow during peak hours is different from that in normal times, but the switching frequency of traffic lights is the same, resulting in unreasonable utilization of road resources
[0005] 2. If no pedestrians need to cross the road, if the traffic lights are switched, it will waste road resources
[0006] 3. When crossing the road at night, people who cannot see or understand the manual switching system will wait forever, or passers-by who are not familiar with the environment will press the button in time, causing inconvenience to pedestrians

Method used

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  • Pedestrian intention detection method and system

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no. 1 approach

[0024] Such as figure 1 Shown, the principle of an embodiment of the present invention is:

[0025] In A1, a distance sensor is deployed at the intersection where the signal light is located to collect target shape data.

[0026] In A2, based on the existing state information of the target, its trajectory information is obtained.

[0027] In A3, according to the moving trajectory and spatial information of each target, it is determined whether the target has a crossing demand.

[0028] Simple area entry determination cannot accurately determine pedestrian crossing intentions, such as pedestrians who have completed the crossing process coming from the opposite side, or pedestrians crossing near the crossing waiting area. In the present invention, the crossing area and direction are specified, and the accurate judgment of the target intention is realized through the geometric analysis of the historical trajectory of pedestrians and the target point (for example, consistent wit...

no. 2 approach

[0031] Such as figure 2 A specific embodiment of the method according to the invention is shown. It is an improvement over the first embodiment. In this embodiment, the method of the present invention includes:

[0032] In B1, a distance sensor is deployed at the intersection where the signal light is located to collect target shape data. This is the same as the first embodiment.

[0033] Said step B1 also includes:

[0034] B1-1. Obtain laser point cloud data of targets (pedestrians, bicycles, electric vehicles, etc.) through distance sensor scanning.

[0035] The distance sensor can perform line scan, multi-line scan and / or area scan. It is generally recommended to use a single-line scanning laser distance sensor, and a multi-line scanning distance sensor or an area scanning distance sensor can also be used. The distance sensor is arranged at a fixed position, and the scanning plane of the distance sensor is parallel to the ground. Generally, the distance sensor is s...

no. 3 approach

[0064] like image 3 As shown, the third embodiment of the present invention is an improvement on the second embodiment.

[0065] In C1, deploy multiple distance sensors at the intersection where the signal lights are located to collect target shape data. This is the same as the first embodiment.

[0066] Said step C1 also includes:

[0067] C1-1. Obtain laser point cloud data of passing targets of target types (pedestrians, bicycles, electric vehicles, etc.) through distance sensor scanning.

[0068] The distance sensor can perform line scan, multi-line scan and / or area scan. It is generally recommended to use a single-line scanning laser distance sensor, and a multi-line scanning distance sensor or an area scanning distance sensor can also be used. The distance sensor is arranged at a fixed position, and the scanning plane of the distance sensor is parallel to the ground. Generally, the distance sensor is set at a height of 20-80 cm from the ground, so as to be able to ...

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Abstract

The present invention provides a pedestrian intention detection method and system. The method comprises: A1, arranging a distance senor to collect target form data in an observation area; A2, based on the current state information of a target, obtaining the track information of the target; and A3, aiming at the mobile track and the space information of each target, determining the action intention of the target. The present invention provides a method for track tracking of a walking target and perform predetermination of the action intention which can be applied for control of an intelligent traffic light.

Description

technical field [0001] The present invention relates to target tracking and target behavior analysis technology, and more specifically, to a method and system for intelligent pedestrian intention detection. Background technique [0002] At intersections where pedestrians pass, traffic lights are generally used for traffic control, and the traffic lights are alternately lit at a fixed frequency. There are also some intersections with pedestrian crossing buttons, which can manually turn on the green light to pass. In addition, at some larger intersections, there are special right-turn lanes. There are no traffic lights in these lanes, and pedestrian traffic depends entirely on the personal qualities of the car owners. [0003] Then, there are the following problems: [0004] 1. The traffic flow during peak hours is different from that in normal times, but the switching frequency of traffic lights is the same, resulting in unreasonable utilization of road resources. [0005]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/20G06V20/52
Inventor 邵肖伟许永伟
Owner 深圳市鸿逸达科技有限公司
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