System and method for camera-based heart rate tracking

A heart rate, camera technology, applied in the measurement of pulse rate/heart rate, application, machine learning, etc., can solve the problem that the device does not provide details and is not particularly accurate.

Active Publication Date: 2019-06-25
NURALOGIX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these devices don't provide a lot of detail and aren't particularly accurate

Method used

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  • System and method for camera-based heart rate tracking
  • System and method for camera-based heart rate tracking
  • System and method for camera-based heart rate tracking

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Embodiment Construction

[0031] Embodiments will now be described with reference to the drawings. For simplicity and clarity of illustration, where considered appropriate, reference numerals may be repeated among the figures to indicate corresponding or analogous elements. Additionally, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein may be practiced without these specific details. In other instances, well-known methods, procedures, and components have not been described in detail so as not to obscure the embodiments described herein. Also, this description should not be taken as limiting the scope of the embodiments described herein.

[0032] Unless the context indicates otherwise, the various terms used in this specification can be read and understood as follows: as used throughout, "or" is inclusive and has the same me...

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Abstract

A system and method for camera-based heart rate tracking. The method includes: determining bit values from a set of bitplanes in a captured image sequence that represent the HC changes; determining afacial blood flow data signal for each of a plurality of predetermined regions of interest (ROIs) of the subject captured by the images based on the HC changes; applying a band-pass filter of a passband approximating the heart rate to each of the blood flow data signals; applying a Hilbert transform to each of the blood flow data signals; adjusting the blood flow data signals from revolving phase-angles into linear phase segments; determining an instantaneous heart rate for each the blood flow data signals; applying a weighting to each of the instantaneous heart rates; and averaging the weighted instantaneous heart rates.

Description

technical field [0001] The following relates generally to the detection of human heartbeats, and more specifically to systems and methods for camera-based heart rate tracking. Background technique [0002] The human heartbeat or cardiac cycle represents one of the primary vital signs monitored by healthcare providers and members of the general public alike. As used herein, a heartbeat refers to a complete heartbeat or group of heartbeats from its generation to the beginning of the next beat; thus, it includes diastole, systole and inter-pause. The rate at which the heart beats, referred to herein as heart rate, is a measure of the cardiac cycle per time period. Heart rate is usually measured in beats per minute (BPM), as a measure of how many cardiac cycles occur on average per minute. The BPM measurement may be an average heart rate, which measures the average BPM over a relatively long period of the cardiac cycle, or an instantaneous heart rate, which measures the BPM ov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/024A61B5/026A61B5/1455G16H30/40
CPCA61B5/0077A61B5/02416A61B5/0261A61B5/14546A61B5/1455A61B5/725A61B5/7253A61B5/7267A61B5/7278A61B5/7485G16H30/40G16H50/20A61B5/024A61B5/02427A61B5/0255A61B5/026A61B2576/00G06T7/0016G06T2207/20081G06T2207/30104G06N20/00
Inventor E·卡巴科夫K·李P·莱维
Owner NURALOGIX CORP
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