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Deriving information about a person's sleep and wake states from a sequence of video frames

A awake state and sleep state technology, applied in the field of computer program products, can solve the problems of high cost, high high-performance computing unit, difficult cost, etc.

Pending Publication Date: 2021-05-04
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these algorithms are computationally expensive due to the large number of video frames they need to process, and may require the use of high-performance computing units that are difficult and expensive to integrate into cameras

Method used

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  • Deriving information about a person's sleep and wake states from a sequence of video frames
  • Deriving information about a person's sleep and wake states from a sequence of video frames
  • Deriving information about a person's sleep and wake states from a sequence of video frames

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Embodiment Construction

[0032] As explained previously, the present invention is about obtaining reliable information about a person's sleep in an unobtrusive manner, in particular by capturing a sequence of video frames and using a processing unit programmed to follow a certain algorithm when analyzing the video frames. conduct. In many cases, when considering a certain time period, it is desirable to know during which periods of the time period the person was asleep and during which periods the person was awake. According to the invention, the video detection of human movements is the basis for the analysis to be performed in order to obtain the desired knowledge.

[0033] figure 1 A camera 100 and a processing unit 20 of a device 100 according to the invention are diagrammatically shown for monitoring the sleeping and waking states of an infant 30 in an incubator 40 . The positioning of the camera 10 relative to the incubator 40 is not very critical since in fact the only requirement is to arran...

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Abstract

For the purpose of obtaining information about a person's sleep and wake states, an arrangement (100) comprising a video camera (10) and a processing unit (20) is used. The video camera (10) serves for capturing a sequence of video frames during a time period, and the processing unit (20) is configured to process video frames provided by the video camera (10) and to provide output representative of the person's sleep and wake states during the time period. In particular, the processing unit (20) is configured to execute an algorithm according to which (i) a motion value-time relation, (ii) sets of features relating to respective epochs in the motion value-time relation and (iii) classifiers of the respective epochs are determined, wherein the algorithm is further configured to apply an adaptive prior probability determined for the particular person in dependence of the motion values of the respective epochs to the classifiers.

Description

technical field [0001] The invention relates to a device designed to derive information about the sleep state and waking state of a person from a sequence of video frames, the device comprising a camera for capturing the sequence of video frames during a time period; and a processing unit, the The processing unit is configured to process the video frames provided by the camera by executing an algorithm and provide an output representative of the person's sleep state and wake state during the time period. [0002] The invention also relates to a computer program product comprising the program code of a computer program for causing the computer to execute the algorithm of the mentioned means when the computer program is loaded on a computer. Background technique [0003] Sleep plays an important role in the development of newborns, both term and premature. Monitoring a baby's sleep is critical to interpreting a baby's physical and mental development, as well as sleep quality....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B5/11
CPCA61B5/0033A61B5/1128A61B5/4809A61B5/4812A61B5/7264A61B2503/045A61B2576/00G16H30/40G16H50/20A61B5/7225
Inventor 龙曦R·贝泽默
Owner KONINKLJIJKE PHILIPS NV