Human body standing behavior automatic detection method and device based on image

Abstract

The present invention relates to a human body standing behavior automatic detection method and a device based on an image. The method and the device are applied to education broadcasting, video conference or an intelligent monitoring system, the installation is simple, the possibility of touch is little, the method and the device are not related with the height of a stand person, and a human body standing state is detected according to a detection marker. The device comprises a camera, a label object and an image analysis module. The label object is in the shooting range of the camera and is fixed at the seat of a speaker. The label object is blocked when the speaker sits down and is exposed when the speaker stands up. When the speaker sits down, the camera can not shoot or only can shoot a small part of the label object of a corresponding seat, and when the speaker stands up, the camera can shoot the whole or large part of the label object of the corresponding seat. The camera transmits an image to the image analysis module in real time, and the image analysis module runs an image algorithm and automatically determines the existence of a standing target.

Description

technical field [0001] The invention relates to an image-based automatic detection method and device for human standing behavior, which are applied in education recording and broadcasting, video conferencing or intelligent monitoring systems. Background technique [0002] In educational recording classrooms, conference rooms or indoor monitoring, a device that can automatically detect standing speakers is usually required. Existing image devices for automatically detecting standing speakers generally install a camera on both sides of the front of the classroom. The height of the camera is slightly higher than the height of the head when a person is sitting. In the image of the camera, a horizontal trigger line is set. When a person is standing, the height of the human body exceeds the horizontal trigger line, so the standing motion of the human body is detected. For example, the Chinese patent with the application number 201410610741.1 and the name of a student tracking and...

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Problems solved by technology

[0003] However, this method has several disadvantages. First, the installation position of the camera is usually on both sides of the front of the classroom. In many places, there are glass windows in this position, which is difficult to install. Second, the installation height of the camera is low, and students are easy to adjust it at will. Or damage, resulting in inaccurate or undetectable detection; the third is that it is difficult to draw a trigger line that satisfies the conditions when the height of the students is different; It is said that the standing height is lower or equal to the sitting height

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