Method for detecting behavior change, equipment and storage medium

A behavior and category technology, applied in the field of pattern recognition, can solve problems such as inability to accurately classify behavior categories and low sensitivity

Inactive Publication Date: 2018-08-17
LUDONG UNIVERSITY
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AI Technical Summary

Problems solved by technology

Low sensitivity, unable to accurately distinguish each behavior cat

Method used

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  • Method for detecting behavior change, equipment and storage medium
  • Method for detecting behavior change, equipment and storage medium
  • Method for detecting behavior change, equipment and storage medium

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Embodiment Construction

[0013] In order to make the purpose, technical solution and advantages of the present invention more clear, the following will further describe the implementation of the present invention in conjunction with the accompanying drawings. The specific technical details mentioned below are only to enable readers to better understand the technical solution, and are not intended to It represents that the present invention is only limited to the following technical details.

[0014] Embodiments of the present invention provide a method, device and storage medium for detecting behavior changes. see figure 1 , figure 1 It is the overall flowchart of the method for detecting behavior changes in the embodiment of the present invention, and the specific steps include:

[0015] S101: Taking the difference between the pixel values ​​of every two adjacent frames of the video to obtain a set of pixel difference values.

[0016] S102: Determine whether each pixel difference in the pixel diff...

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Abstract

The invention provides a method for detecting a behavior change. The method comprises: a difference between each two adjacent frames of pixel values of a video is calculated to obtain a pixel difference value set; whether each pixel difference in the pixel difference value set exceeds a behavior threshold is determined; if not, no behavior change exists in the video; if so, a pixel point region set corresponding to the pixel difference value exceeding the behavior threshold is set to be a to-be-identified area; and the to-be-identified area is inputted into a classification model for classification and a behavior change is detected according to the classification result. In addition, the invention also provides an active interaction device and a non-transitory readable storage medium for realizing the method. Therefore, sensitivity of detecting behavior changes is improved; and the range of types of behavior changes that can be detected is extended.

Description

technical field [0001] The present invention relates to the field of pattern recognition, and more specifically, to a method, device and storage medium for detecting behavior changes. Background technique [0002] The traditional behavior change detection method obtains the human trajectory through the tracking algorithm of the color histogram, and different behaviors correspond to different trajectories. However, this method of distinguishing different behavior categories through the difference of human trajectory is only applicable to behaviors with large change characteristics. category, it is impossible to accurately distinguish behaviors with small changes, and the definition of abnormal behavior is when a person's movement trajectory does not conform to periodicity and repetition, which is highly subjective. For example, in the classroom, limited by the limitation of the classroom space, the behavior of students in the classroom changes little, and the difference betwe...

Claims

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Application Information

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IPC IPC(8): G06T7/246G06T7/254G06K9/00G06K9/62
CPCG06T7/246G06T7/254G06T2207/10016G06T2207/20084G06T2207/20081G06V40/176G06V40/20G06F18/214G06F18/24
Inventor 贾世祥危义民李琪王志成
Owner LUDONG UNIVERSITY
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