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Systems and methods for camera-based heart rate tracking

A heart rate and camera technology, applied in the measurement of pulse rate/heart rate, applications, machine learning, etc., can solve problems such as not being particularly accurate, and the device not providing details.

Active Publication Date: 2021-10-22
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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  • Systems and methods for camera-based heart rate tracking
  • Systems and methods for camera-based heart rate tracking
  • Systems and methods for camera-based heart rate tracking

Examples

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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 comprises: determining, from a set of bit-planes in a captured image sequence, bit values ​​representing HC changes; determining a face for each of a plurality of predetermined regions of interest (ROIs) of a subject captured by the images based on the HC changes blood flow data signals; applying a bandpass filter approximating the passband of the heart rate to each blood flow data signal; applying a Hilbert transform to each blood flow data signal; adjusting the blood flow data signals from a rotational phase angle to linear phase segments; determining an instantaneous heart rate for each flow data signal; applying weighting to each instantaneous heart rate; 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 Patents(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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