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Trip detecting method and device based on video

A detection method and technology of detection equipment, which are applied in image data processing, instruments, computing, etc., can solve the problems of increased hardware cost and long time consumption.

Inactive Publication Date: 2013-07-03
爱思开电讯投资(中国)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it takes a long time to detect a fall event, the cost of the hardware will increase

Method used

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  • Trip detecting method and device based on video
  • Trip detecting method and device based on video
  • Trip detecting method and device based on video

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Embodiment Construction

[0023] In the embodiment of the fall detection method of the present invention, fall events are roughly divided into four categories: fall from bed, fall while sitting, fall while walking or standing, fall while standing on a bench or ladder fall. All falls have some common features: the position of the person does not change much in a short period of time after the fall, and the center of gravity shifts downward after the fall compared with the moment before the fall. Compared with lying down, sitting down and bending over, people's falling behavior has a greater downward shift of the center of gravity. Falling can be distinguished from lying down, sitting, and bending over by setting the center of gravity down shift threshold. According to the embodiment of the present invention, by modeling the background of the monitoring scene, and then obtaining the foreground object through background subtraction, the monitored target person is tracked; since the target person is monit...

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Abstract

The invention provides a trip detecting method and device based on video. The trip detecting method comprises the steps of obtaining moving objects in a monitoring scene; tracking the moving objects in the monitoring scene; setting gravity center falling thresholds of the objects according to the monitoring scene; determining whether the objects trip in the monitoring scene or not by the utilization of the set threshold. By the utilization of the trip detecting method and the trip detecting device based on the video, trip accidents can be detected quickly and accurately, the trip accidents occurring in any direction and far from or close to a video camera can be detected, sitting and lying can be distinguished from tripping, no parameter needs adjusting, environment adaptivity is provided, and trip accidents in different domestic scenes can be detected.

Description

technical field [0001] The invention relates to image pattern recognition, in particular to a video-based fall detection method and equipment, especially suitable for fall event detection of elderly people living alone. Background technique [0002] With the great progress of medical technology, many countries are facing the problem of aging society, so people's demand for health care institutions is also increasing. In many developed countries, the government has given great importance and financial support to health care institutions serving the elderly. Developing technologies to help the elderly and sick is already a hot area of ​​research due to the high demand in these institutions. These assistive technologies can not only increase the independent living ability of the elderly, but also reduce the pressure of nurse shortage. In developing these helpful technologies, various sensors and cameras are used to monitor human activities and detect significant events in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/20
Inventor 吴娜陆京金永哲黄凯奇马丹张俊格
Owner 爱思开电讯投资(中国)有限公司