A people counting method and device, and an elevator dispatching method and system

Abstract

Embodiments of the present invention provide a people counting method and device, and an elevator dispatching method and system, wherein the people counting method includes: converting the acquired three-dimensional data of images captured by a stereo vision camera into spatial three-dimensional information in a world coordinate system ;According to the height and width information in the three-dimensional space information, the image is projected to obtain a two-dimensional projection map; the target pixel points with the characteristics of the human body target in the two-dimensional projection map are obtained; the target pixel points are marked with connected areas, and the calculated values ​​of different marks are obtained. Multiple target maximum points in the projected cluster composed of target pixels; cover with a circle with the target maximum point as the center and a preset radius to obtain multiple candidate head target areas; determine the confirmation in the candidate head target area Human head target: count the number of all confirmed human head targets in the current frame, and determine the number of people in the image captured by the stereo vision camera. The accuracy rate of people counting can be improved through the invention.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a people counting method and device, and an elevator dispatching method and system. Background technique [0002] With the development of computer vision technology, pedestrian detection technology based on stereo vision camera has higher reliability, convenience and low cost, and is gradually replacing traditional infrared or contact equipment, so it has received more and more attention . In the management and decision-making of shopping malls, shopping centers, airports, stations and other public activity areas, the number of people is an indispensable data. Through the statistics of the number of people, it is possible to effectively monitor and organize the operation of the public activity area in real time. For example, according to the number of people taking the elevator and the number of people waiting for the elevator, the elevators in the shopping mall can be ...

AI Technical Summary

Problems solved by technology

[0005] Due to the high population density and serious target occlusion in shopping malls, shopping centers, airports, stations and other public activity areas, for such complex scenes, existing people counting methods use detectors to detect targets. People counting in the real head area still has the problem of inaccurate one-to-one correspondence between the original image target and the target on the depth map, resulting in a low accuracy rate of people counting

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