CA3165174A1 - System and method for pulse transmit time measurement from optical data - Google Patents

System and method for pulse transmit time measurement from optical data Download PDF

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Publication number
CA3165174A1
CA3165174A1 CA3165174A CA3165174A CA3165174A1 CA 3165174 A1 CA3165174 A1 CA 3165174A1 CA 3165174 A CA3165174 A CA 3165174A CA 3165174 A CA3165174 A CA 3165174A CA 3165174 A1 CA3165174 A1 CA 3165174A1
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CA
Canada
Prior art keywords
optical data
face
fingertip
skin
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CA3165174A
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English (en)
French (fr)
Inventor
David Maman
Konstantin GEDALIN
Michael MARKZON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BinahAi Ltd
Original Assignee
BinahAi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BinahAi Ltd filed Critical BinahAi Ltd
Publication of CA3165174A1 publication Critical patent/CA3165174A1/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/02108—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics
    • A61B5/02125—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics of pulse wave propagation time
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6898—Portable consumer electronic devices, e.g. music players, telephones, tablet computers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7264—Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/13—Edge detection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2576/00—Medical imaging apparatus involving image processing or analysis
    • A61B2576/02—Medical imaging apparatus involving image processing or analysis specially adapted for a particular organ or body part
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/024—Measuring pulse rate or heart rate
    • A61B5/02416—Measuring pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20084—Artificial neural networks [ANN]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • G06T2207/30076—Plethysmography

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • Artificial Intelligence (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Vascular Medicine (AREA)
  • Psychiatry (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Evolutionary Computation (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
CA3165174A 2020-01-20 2021-01-19 System and method for pulse transmit time measurement from optical data Pending CA3165174A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202062963248P 2020-01-20 2020-01-20
US62/963,248 2020-01-20
PCT/IL2021/050058 WO2021149048A1 (en) 2020-01-20 2021-01-19 System and method for pulse transmit time measurement from optical data

Publications (1)

Publication Number Publication Date
CA3165174A1 true CA3165174A1 (en) 2021-07-29

Family

ID=76992156

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3165174A Pending CA3165174A1 (en) 2020-01-20 2021-01-19 System and method for pulse transmit time measurement from optical data

Country Status (7)

Country Link
US (1) US20230056557A1 (https=)
EP (1) EP4093267A4 (https=)
JP (1) JP2023510943A (https=)
CN (1) CN115003215A (https=)
CA (1) CA3165174A1 (https=)
IL (1) IL294325A (https=)
WO (1) WO2021149048A1 (https=)

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US10660526B2 (en) 2012-12-31 2020-05-26 Omni Medsci, Inc. Near-infrared time-of-flight imaging using laser diodes with Bragg reflectors
US12226188B2 (en) 2012-12-31 2025-02-18 Omni Medsci, Inc. Active illumination and time-of-flight camera system to evaluate facial blood flow, eye movements and physiological parameters
US12502080B2 (en) 2012-12-31 2025-12-23 Omni Medsci, Inc. Camera based wearable devices with artificial intelligence assistants
US12484787B2 (en) 2012-12-31 2025-12-02 Omni Medsci, Inc. Measurements using camera imaging tissue comprising skin or the hand
US12193790B2 (en) 2012-12-31 2025-01-14 Omni Medsci, Inc. Wearable devices comprising semiconductor diode light sources with improved signal-to-noise ratio
CN114531694B (zh) * 2020-11-23 2024-11-19 维沃移动通信有限公司 通信数据处理方法、装置及通信设备
CN115670498A (zh) * 2021-09-29 2023-02-03 南京大学 一种非接触面部血流速度检测方法
US20230320667A1 (en) * 2022-04-07 2023-10-12 Faceheart Inc Corporation Contactless physiological measurement device and method
EP4651793A1 (en) * 2023-01-17 2025-11-26 BIOLAB Innovation GmbH Arrangement for determining a pulse wave transit time of an object, computer-implemented method and computer program product
CN117694854B (zh) * 2023-08-28 2025-08-08 荣耀终端股份有限公司 血压测量方法和电子设备
CN117064356A (zh) * 2023-09-27 2023-11-17 南方科技大学 利用空间冗余性强化鲁棒性的非接触血压监测装置、方法及系统
CN119184647B (zh) * 2024-11-29 2025-03-14 南方科技大学 基于多相机设备的ptt估计方法、系统、终端及介质
CN119864131B (zh) * 2025-03-07 2026-01-30 中国人民解放军总医院第一医学中心 一种急诊临床数据实时共享的多终端处理方法及系统

Family Cites Families (18)

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US8838209B2 (en) * 2012-02-21 2014-09-16 Xerox Corporation Deriving arterial pulse transit time from a source video image
US9504391B2 (en) * 2013-03-04 2016-11-29 Microsoft Technology Licensing, Llc Determining pulse transit time non-invasively using handheld devices
JP6167614B2 (ja) * 2013-03-29 2017-07-26 富士通株式会社 血流指標算出プログラム、血流指標算出装置および血流指標算出方法
JP6435128B2 (ja) * 2013-07-26 2018-12-05 タタ・コンサルタンシー・サーヴィシズ・リミテッド 生理学的パラメータの監視
CA2931377A1 (en) * 2013-11-27 2015-06-04 Koninklijke Philips N.V. Device and method for obtaining pulse transit time and/or pulse wave velocity information of a subject
WO2016015057A1 (en) * 2014-07-25 2016-01-28 The Trustees Of Dartmouth College Systems and methods for cardiovascular-dynamics correlated imaging
US20160106328A1 (en) * 2014-10-16 2016-04-21 Xerox Corporation Determining arterial pulse transit time from time-series signals obtained at proximal and distal arterial sites
EP3033991B1 (en) * 2014-12-15 2018-02-28 Stichting IMEC Nederland System and method for blood pressure estimation
JP6683367B2 (ja) * 2015-03-30 2020-04-22 国立大学法人東北大学 生体情報計測装置、生体情報計測方法及び生体情報計測プログラム
KR101777738B1 (ko) * 2015-07-07 2017-09-12 성균관대학교산학협력단 동영상을 이용하여 혈압을 추정하는 방법
US9864901B2 (en) * 2015-09-15 2018-01-09 Google Llc Feature detection and masking in images based on color distributions
US20180358119A1 (en) * 2016-06-03 2018-12-13 FOURTH FRONTIER TECHNOLOGIES, Pvt. Ltd. Method and system for continuous monitoring of health parameters during exercise
GB2551201A (en) * 2016-06-10 2017-12-13 Polar Electro Oy Multi-sensor system for estimating blood pulse wave characteristics
US10335045B2 (en) * 2016-06-24 2019-07-02 Universita Degli Studi Di Trento Self-adaptive matrix completion for heart rate estimation from face videos under realistic conditions
US20180070887A1 (en) * 2016-08-29 2018-03-15 Gwangju Institute Of Science And Technology Blood pressure measuring device and blood pressure measuring method using the same
EP3375351A1 (en) * 2017-03-13 2018-09-19 Koninklijke Philips N.V. Device, system and method for measuring and processing physiological signals of a subject
KR102407564B1 (ko) * 2017-08-01 2022-06-13 삼성전자주식회사 생체 정보를 판단하는 전자 장치 및 이의 동작 방법
US20210361165A1 (en) * 2018-10-31 2021-11-25 Northwestern University Sensor network for measuring physiological parameters of mammal subject and applications of same

Also Published As

Publication number Publication date
CN115003215A (zh) 2022-09-02
EP4093267A1 (en) 2022-11-30
EP4093267A4 (en) 2024-07-31
WO2021149048A1 (en) 2021-07-29
US20230056557A1 (en) 2023-02-23
IL294325A (en) 2022-08-01
JP2023510943A (ja) 2023-03-15

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