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A target user gait recognition system and method in daily environment

A target user and environment technology, applied in the field of intelligent medical care, can solve the problems that patients cannot conduct clinical follow-up in time and do not know the symptoms of central nervous system diseases, etc.

Active Publication Date: 2021-01-01
INST OF SOFTWARE - CHINESE ACAD OF SCI
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Problems solved by technology

Since patients may not be aware of the symptoms of CNS disease at an early stage, most patients may not be able to have timely clinical follow-up

Method used

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  • A target user gait recognition system and method in daily environment
  • A target user gait recognition system and method in daily environment
  • A target user gait recognition system and method in daily environment

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Embodiment Construction

[0038] The present invention uses human-computer interaction technology and Microsoft Kinect to collect people's daily gait data - simply moving naturally in front of the Kinect camera without performing any predetermined tasks. We first use Kinect to collect and monitor the depth gait data of all people in the camera field of view in 24 hours in real time, and then use the face recognition algorithm to accurately identify which are our target users, and then use the windowing algorithm to convert the original long-term The video is cut into a series of gait segments with small time intervals, and effective gait features are extracted for each gait segment to build a classifier to determine whether the current user is walking, so as to achieve the target user walking around the clock in daily situations monitoring purposes.

[0039] The present invention has following 2 key functions:

[0040] One is to identify the target user in the video stream, extract the depth informati...

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Abstract

The invention discloses a target user gait recognition system and method in a daily environment. The system comprises a plurality of video acquisition units which are used for collecting and monitoring depth gait data and color data streams of all figures in the visual field of a camera in real time and sending the depth gait data and the color data streams to a data processing unit; the data processing unit is used for identifying a target user from the color data stream; for each video frame containing the target user, converting the facial position coordinate of each target user in the video frame into the coordinate of a camera space point; calculating each face position in the video frame, and marking a face ID corresponding to the face position on the skeleton closest to the face position; the video is cut into a plurality of gait segments, gait characteristics of a target user in each gait segment are extracted, whether the corresponding target user performs walking actions or not is judged through a classifier, and if yes, the gait characteristics of the corresponding target user are extracted. The gait data processing method and system provide help for gait data processingand application.

Description

technical field [0001] The invention belongs to the field of intelligent medical treatment, and in particular relates to a target user gait recognition system and method in a daily environment. Background technique [0002] Central nervous system diseases such as Parkinson's disease (PD) and cerebrovascular disease (CVD) seriously affect the quality of life of patients, including gait, tremor, stiffness and dysphagia. As a typical chronic disease of aging, the growth rate of PD in the elderly population has been increasing in recent years. In 2015, PD affected 6.2 million people and caused approximately 117,400 deaths worldwide (reference: GBD 2015Disease and Injury Incidence and Prevalence, Collaborators.(8 October 2016). "Global, regional, and national incidence, prevalence, and years lived withdisability for 310 diseases and injuries, 1990–2015: a systematic analysis for the Global Burden of Disease Study 2015". Lancet. 388(10053):1545–1602. doi:10.1016 / S0140-6736(16)316...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62
Inventor 田丰黄进周立新朱以诚马帅王宏安
Owner INST OF SOFTWARE - CHINESE ACAD OF SCI
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