A pedestrian recognition method based on human head features

Abstract

The invention provides a pedestrian identification method based on human head characteristics, in particular comprising the following steps of collecting and defining a pedestrian outline map with special characteristics and low-frequency posture, learning and classifying, and establishing a posture template; using laser scanner to obtain the original image of the target object, and then pre-processing the original image to obtain the contour map of the target object; using the ratio of the height to the width of the outer rectangle of the whole contour map as the whole feature to classify theobject; extracting the target head contour from the whole contour image, and calculating its roundness, and classifying the target again as the local feature of recognition. The invention establishesa template for pedestrian posture with special characteristics and low frequency characteristics, which avoids the pedestrian with special characteristics that can not be recognized by the system byutilizing the advantages that the upper and lower parts of the head, shoulder and leg parts of the human body are not easily occluded at the same time. The invention takes the roundness of the human head as the second class classification of pedestrian identification, avoids the mistaken identification of the system, and further improves the pedestrian identification rate.

Description

technical field [0001] The invention belongs to the field of perception technology, and in particular relates to a pedestrian recognition method based on human head features. Background technique [0002] In recent years, 3D laser scanning technology has developed rapidly. The 3D laser scanning system, also known as the 3D laser imaging system, is an advanced long-distance measurement technology, which can quickly and accurately obtain the spatial coordinate information of the object, and can store the collected data in the computer, and then quickly reconstruct The three-dimensional model of the object can be obtained to analyze and process it. The data information collected by the laser scanner is a point cloud composed of three-dimensional information and reflectivity of discrete data points. Each data point in the point cloud contains the distance value, angle value, reflectivity, etc. of the scanned point. Using this technology can realize the complete collection of ...

AI Technical Summary

Problems solved by technology

[0003] In pedestrian recognition, the recognition method of single-line laser radar is generally used. However, because single-line laser radar can only obtain a cross-section of the object, it cannot obtain more complete three-dimensional information.

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