Pedestrian footstep state recognition method and device

A state recognition, footstep technology, applied in the field of image processing, can solve the problem of no solution, no pedestrian footstep status analysis, etc.

Pending Publication Date: 2020-12-15
北京数衍科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no method for analyzing the footstep state of pedestrians in the prior art
[0003] For the above problems, no effective solution has been proposed

Method used

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  • Pedestrian footstep state recognition method and device
  • Pedestrian footstep state recognition method and device
  • Pedestrian footstep state recognition method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] figure 1 It is a flow chart of the method for identifying pedestrian's step state provided by Embodiment 1 of the present invention.

[0064] refer to figure 1 , the method includes the following steps:

[0065] Step S101, collecting the Nth frame of data matrix;

[0066] Here, the data matrix of the Nth frame is an M×N smart ground lattice, where M and N are positive integers, M>16, and N>4.

[0067] Step S102, performing image binarization processing on the data matrix of the Nth frame to obtain a signal amplitude data matrix;

[0068] Here, the image binarization process is also called 0-1 detection method, and the sensor data in the Nth frame data matrix is ​​compared with the set threshold to obtain the signal amplitude data matrix.

[0069] Step S103, performing connected domain processing on the signal amplitude data matrix to obtain the connected domain step detection result;

[0070] Here, the connected domain analysis is performed on the sensor data in th...

Embodiment 2

[0100] figure 2 It is a schematic diagram of the 67th frame data matrix provided by Embodiment 2 of the present invention.

[0101] refer to figure 2 , the intelligent ground lattice is 16×8, 16 is the number of rows, and 8 is the number of columns. Perform image binarization processing on the 67th frame data matrix to obtain the signal amplitude data matrix, and use the sensor data that retains the amplitude value in the signal amplitude data matrix as the detection result of the 67th frame data matrix. For details, refer to image 3 .

[0102] Connected domain processing is performed on the detection result of the data matrix in the 67th frame, and the adjacent sensor data are classified into the same connected domain, thereby obtaining a connected domain, which is used as the connected domain step detection result. Image feature extraction is carried out on the detection results of connected domain footsteps, and the pixel area of ​​the connected domain in the 67th fra...

Embodiment 3

[0107] Figure 6 It is a schematic diagram of a pedestrian's footstep state recognition device provided in Embodiment 3 of the present invention.

[0108] refer to Figure 6 , the device includes: an acquisition unit 1 , a binarization processing unit 2 , a connected domain processing unit 3 , an extraction unit 4 and a comparison unit 5 .

[0109] The acquisition unit 1 is used to acquire the Nth frame of data matrix;

[0110] The binarization processing unit 2 is used to perform image binarization processing on the Nth frame data matrix to obtain a signal amplitude data matrix;

[0111] The connected domain processing unit 3 is used for performing connected domain processing on the signal amplitude data matrix to obtain the connected domain step detection result;

[0112] The extraction unit 4 is used to extract the image features of the connected domain step detection result, and obtain the feature data of the connected domain of the Nth frame;

[0113] The comparison u...

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Abstract

The invention provides a pedestrian footstep state recognition method and device. The method comprises the steps: collecting an Nth frame data matrix; performing image binarization processing on the Nth frame data matrix to obtain a signal amplitude data matrix; performing connected domain processing on the signal amplitude data matrix to obtain a connected domain footstep detection result; performing image feature extraction on the connected domain footstep detection result to obtain feature data of an Nth frame connected domain; and comparing the feature data of the connected domain of the Nth frame with the feature data of the connected domain of the N1th frame, and determining the footstep state of the to-be-detected object according to the comparison result, so that the walking stateof the pedestrian can be analyzed, and the behavior of the pedestrian can be monitored.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and a device for recognizing pedestrian's step state. Background technique [0002] The smart ground relies on the dot matrix sensor network laid on the ground to sense the position of pedestrians' footsteps. When a pedestrian walks on the ground, the pedestrian's footsteps fall on the corresponding dot matrix position of the smart floor, and the sensor on the dot matrix position is excited to generate a signal, which is sampled and transmitted to the back-end signal processing system for detection, forming the pedestrian's Foot position. When pedestrians are walking, analyze the footsteps of pedestrians. However, there is no method for analyzing the footstep state of pedestrians in the prior art. [0003] For the above problems, no effective solution has been proposed yet. Contents of the invention [0004] In view of this, the object of the present inven...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/46
CPCG06V40/25G06V10/44
Inventor 袁克亚姚东星杨伟清
Owner 北京数衍科技有限公司
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