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Method for judging forward motion direction of pedestrian by combining laser scanning and videos

A technology of laser scanning and forward direction, applied in closed-circuit television systems, image data processing, instruments, etc., can solve problems such as low and complex efficiency, and achieve the effect of small impact

Active Publication Date: 2010-01-13
CHINA TRANSINFO TECH CORP
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AI Technical Summary

Problems solved by technology

Existing technologies generally use video tracking to judge the direction of pedestrians. This type of technology is often susceptible to background, weather, occluders, shadows, etc., and video tracking often requires first Determine the initial position of the human body, which requires a comprehensive search of the video image of a certain frame, which is complex and inefficient

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  • Method for judging forward motion direction of pedestrian by combining laser scanning and videos

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Embodiment Construction

[0011] The method of the present invention is to perform vertical laser scanning and video shooting on it from above the passenger flow channel, and perform human body feature detection at a certain position in a frame of video image according to the time and position when pedestrians pass through the laser scanning surface. When a human body feature is detected, the human body feature is tracked in consecutive video frames to determine its heading direction.

[0012] figure 1 It is a schematic diagram of judging the forward direction of pedestrians according to an embodiment of the present invention.

[0013] As shown in the figure, vertical laser scanning and video shooting are performed from above the passenger flow channel to obtain laser scanning data and video stream data respectively. Laser scan data and video stream data for each frame are stored for data analysis.

[0014] The vertical height of the laser scanning origin from the ground is generally more than 2 mete...

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Abstract

The invention provides a method for judging a forward motion direction of a pedestrian by combining laser scanning and videos, which comprises the following steps: (a) carrying out vertical laser scanning and video shooting on pedestrians overhead to acquire laser scanning data and video images; (b) analyzing the laser scanning data to know that a pedestrian is scanned by laser in a frame of the laser scanning data and obtain the analytical data of the frame of the laser scanning data; (c) detecting the video images according to the analytical data so as to find out the body characteristics of the pedestrian; and (d) tracking the pedestrian in the video images according to the body characteristics so as to judge the forward motion direction of the pedestrian. The method can accurately andeffectively detect a human body target in the videos by combining the laser scanning and the videos so as to carry out tracking processing and has small influence of external environment.

Description

technical field [0001] The invention relates to a method for judging the advancing direction of pedestrians combined with laser scanning and video. Background technique [0002] At present, with the rapid development of the economy, the continuous construction of infrastructure, and the increasingly frequent holding of large-scale organizational activities, the flow of people in densely populated places, such as buses, subways, airports, and railway stations, is increasing. At the same time, the passenger flow information obtained through passenger flow detection is becoming more and more complex, and the amount of information is also increasing. Passenger flow information is an important data to measure the operation status. Through the statistical analysis of passenger flow information, not only can the passenger flow operation status of the traffic area be obtained, but also the detection data can be used to effectively organize operations and schedule work. At the same ...

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Application Information

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IPC IPC(8): H04N7/18G06T7/00G06T7/246
Inventor 周双全马爱民刘成英张志平夏曙东
Owner CHINA TRANSINFO TECH CORP
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