* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Thursday, July 3, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    BTS Announce Their Big Return and Yes, They Already Have Some Major Plans in the Works – Yahoo

    BTS Announce Their Big Return and Yes, They Already Have Some Major Plans in the Works – Yahoo

    Nantucket Dance Festival opens July 8 – The Inquirer and Mirror

    Nantucket Dance Festival Launches with Thrilling Performances Beginning July 8

    A Secret Society, Ritualistic Killings, and a Century-Old Curse Netflix and YRF Entertainment’s ‘Mandala Murders’ Premieres July 25 – About Netflix

    A Secret Society, Ritualistic Killings, and a Century-Old Curse: Dive into the Chilling World of ‘Mandala Murders’ Premiering July 25

    Susquehanna Raises Penn Entertainment Inc. (PENN) Price Target. – Yahoo Finance

    Susquehanna Raises Price Target for Penn Entertainment Inc. (PENN)

    George Lopez is coming to Spokane – KXLY.com

    George Lopez is coming to Spokane – KXLY.com

    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Inspira Technologies Secures Landmark $22.5M Deal: Major Revenue Breakthrough After FDA Clearance – Stock Titan

    Inspira Technologies Secures Landmark $22.5M Deal: Major Revenue Breakthrough After FDA Clearance – Stock Titan

    Meiwu Technology Company Limited and Shenzhen Zhinuo – GlobeNewswire

    Meiwu Technology Company Limited and Shenzhen Zhinuo – GlobeNewswire

    Owls inspire new revolutionary noise reduction technology – KTEN

    Owls inspire new revolutionary noise reduction technology – KTEN

    New center coming to Mizzou will focus on energy research and technology – Columbia Missourian

    Mizzou Launches Innovative New Center Dedicated to Energy Research and Technology

    Mirrors in space and underwater curtains: can technology buy us enough time to save the Arctic ice caps? – The Guardian

    Can Technology Like Space Mirrors and Underwater Curtains Buy Us Time to Save the Arctic Ice Caps?

    Naples restaurant owner prepares for hurricane season with new flood technology – Fox4Now.com

    Naples restaurant owner prepares for hurricane season with new flood technology – Fox4Now.com

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    BTS Announce Their Big Return and Yes, They Already Have Some Major Plans in the Works – Yahoo

    BTS Announce Their Big Return and Yes, They Already Have Some Major Plans in the Works – Yahoo

    Nantucket Dance Festival opens July 8 – The Inquirer and Mirror

    Nantucket Dance Festival Launches with Thrilling Performances Beginning July 8

    A Secret Society, Ritualistic Killings, and a Century-Old Curse Netflix and YRF Entertainment’s ‘Mandala Murders’ Premieres July 25 – About Netflix

    A Secret Society, Ritualistic Killings, and a Century-Old Curse: Dive into the Chilling World of ‘Mandala Murders’ Premiering July 25

    Susquehanna Raises Penn Entertainment Inc. (PENN) Price Target. – Yahoo Finance

    Susquehanna Raises Price Target for Penn Entertainment Inc. (PENN)

    George Lopez is coming to Spokane – KXLY.com

    George Lopez is coming to Spokane – KXLY.com

    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Inspira Technologies Secures Landmark $22.5M Deal: Major Revenue Breakthrough After FDA Clearance – Stock Titan

    Inspira Technologies Secures Landmark $22.5M Deal: Major Revenue Breakthrough After FDA Clearance – Stock Titan

    Meiwu Technology Company Limited and Shenzhen Zhinuo – GlobeNewswire

    Meiwu Technology Company Limited and Shenzhen Zhinuo – GlobeNewswire

    Owls inspire new revolutionary noise reduction technology – KTEN

    Owls inspire new revolutionary noise reduction technology – KTEN

    New center coming to Mizzou will focus on energy research and technology – Columbia Missourian

    Mizzou Launches Innovative New Center Dedicated to Energy Research and Technology

    Mirrors in space and underwater curtains: can technology buy us enough time to save the Arctic ice caps? – The Guardian

    Can Technology Like Space Mirrors and Underwater Curtains Buy Us Time to Save the Arctic Ice Caps?

    Naples restaurant owner prepares for hurricane season with new flood technology – Fox4Now.com

    Naples restaurant owner prepares for hurricane season with new flood technology – Fox4Now.com

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Non-contact method for highly accurate heart rate estimation

August 8, 2023
in Science
Non-contact method for highly accurate heart rate estimation
Share on FacebookShare on Twitter

Researchers from Japan have introduced a novel non-contact method that utilizes subtle color changes on the face to estimate heart rates.

Heart rate (HR) estimation is an essential component of overall health and well-being and provides useful insights into the physiological and emotional state of humans. It is traditionally measured by counting the number of cardiac pulses appearing within a certain time window. However, conventional heart rate measurement methods require physical contact with the patient, which may lead to discomfort and skin-related issues.

In the past decade, many researchers have proposed methods of non-contact HR estimation using cameras that focus on the blood volume pulse (BVP). The BVP associated with the cardiac pulse causes subtle temporal skin color changes in facial skin color captured in videos. By analyzing these color variations, heart rate can be estimated.

However, the temporal variation of skin color owing to the cardiac pulse is quite small. Therefore, the accuracy of HR estimation is adversely affected by the facial movements of the patient, ambient lighting variations, and noise.

To overcome these problems, researchers from the Tokyo University of Science have introduced an innovative non-contact approach that analyzes subtle color changes on the face to enable highly accurate heart rate estimation, even in scenes with ambient light fluctuations. The novel method builds on the ability of the pulse to exhibit quasi-periodic behavior, which distinguishes it from noise artifacts.

It relies on tracking time-series data from videos of a person’s face, eliminating the need for any attached detectors on the person’s body. The video time series of the face is monitored continuously, and the changes are converted into RGB time-series signals. This helps in extracting information about blood volume changes occurring beneath the skin.

The method utilizes dynamic mode decomposition (DMD), a technique for extracting the underlying spatio-temporal dynamics of a system from multi-dimensional time-series signals. The DMD framework enables the unified spatio-temporal modeling of the BVP and thus enables distinction between the BVP and noise components.

After effectively eliminating noise that might creep into the data, the observed RGB signals are then converted to pulse wave information data. Using the DMD method in a time-delayed coordinate system, accurate pulse waves can be extracted to estimate the person’s heart rate.

To demonstrate the effectiveness of the proposed method, researchers conducted experiments using the TokyoTech Remote PPG dataset, MR-NIRP dataset, and UBFC-rPPG dataset. This dataset contained a total of 67 facial videos from 64 participants.

Novel method for extracting spatio-temporal structure of blood volume pulse for accurate heart rate estimationResearchers from TUS propose a method that involves constructing a chrominance matrix using time-series signals from facial patches in an RGB facial video, followed by spatio-temporal structure analysis of blood volume pulse (BVP) using physics-informed DMD in a time-delay coordinate system. Further, heart rate estimation in the time domain is done using beat-to-beat peak period analysis of the extracted BVP signal. Credit: Dr. Yoshihiro Maeda and Kosuke Kurihara from Tokyo University of Science, Japan

Researchers then compared the results of the new method with other non-contact methods, including DistancePPG, SparsePPG, SAMC, Hierarchical, PhysFormer, and MTTS-CAN. The proposed method adaptively selects the dynamic mode that contains the most pulse wave components based on the knowledge of the typical range of pulse wave components.

As a result, the proposed method showed a 36.5% improvement in estimation accuracy over the state-of-the-art methods.

These research findings can lead to advancements in healthcare technologies and ultimately improve patient comfort and well-being. The future work will include exploring techniques that utilize multispectral information, which can contribute to reducing noise and improving the accuracy of the method.

“This achievement is expected to play a significant role as a fundamental technology for vital monitoring systems in the medical and fitness fields. The breakthrough contactless method holds great potential for non-contact heart rate estimation in various applications, such as remote health monitoring and physiological assessments,” concludes Dr. Yoshihiro Maeda, the lead researcher of the study, in a statement.

Journal reference:

Kosuke Kurihara, Yoshihiro Maeda, Daisuke Sugimura, Takayuki Hamamoto. Spatio-Temporal Structure Extraction of Blood Volume Pulse Using Dynamic Mode Decomposition for Heart Rate Estimation. IEEE Access, 2023; DOI: 10.1109/ACCESS.2023.3284465

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Tech Explorist – https://www.techexplorist.com/non-contact-method-highly-accurate-heart-rate-estimation/66451/

Tags: methodNon-contactscience
Previous Post

Sharjah Asset Management and IHG boost emirate’s tourism

Next Post

First piloted flight of Boeing’s oft-delayed Starliner spacecraft slips to at least March

LensToLens: Wetlands guard bird species from plateau to urban landscape – Xinhua

How Wetlands Safeguard Bird Species Across Plateaus and Urban Landscapes

July 3, 2025
Commentary: Vatican defends science from politics, ideology and misinformation – The Salt Lake Tribune

Vatican Takes a Bold Stand: Defending Science from Politics, Ideology, and Misinformation

July 2, 2025
Scientists Merged 3 Human Brains by Thought Alone – Popular Mechanics

Scientists Achieve Mind-Blowing Feat by Merging Three Human Brains Through Thought Alone

July 3, 2025
Retired woman shares inside look at lifestyle after moving into unconventional tiny home: ‘The best decision I’ve ever made’ – The Cool Down

Retired Woman Reveals Life-Changing Joys of Living in an Unconventional Tiny Home: “The Best Decision I’ve Ever Made

July 2, 2025
​​World Rural Development Day: Refugee-Led Farming Projects That Are Feeding the World – USA for UNHCR

​​World Rural Development Day: Refugee-Led Farming Projects That Are Feeding the World – USA for UNHCR

July 2, 2025
Trump’s economy: A weak link in MAGA’s chain – The Hill

Trump’s economy: A weak link in MAGA’s chain – The Hill

July 2, 2025
BTS Announce Their Big Return and Yes, They Already Have Some Major Plans in the Works – Yahoo

BTS Announce Their Big Return and Yes, They Already Have Some Major Plans in the Works – Yahoo

July 2, 2025
About 17 Million More People Could be Uninsured due to the Big Beautiful Bill and other Policy Changes – KFF

How the Big Beautiful Bill and Policy Changes Could Leave 17 Million More People Uninsured

July 2, 2025
Politics and science can mix – High Country News

When Politics Meets Science: Finding Common Ground for a Better Future

July 2, 2025
Inspira Technologies Secures Landmark $22.5M Deal: Major Revenue Breakthrough After FDA Clearance – Stock Titan

Inspira Technologies Secures Landmark $22.5M Deal: Major Revenue Breakthrough After FDA Clearance – Stock Titan

July 2, 2025

Categories

Archives

July 2025
MTWTFSS
 123456
78910111213
14151617181920
21222324252627
28293031 
« Jun    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (702)
  • Economy (728)
  • Entertainment (21,616)
  • General (15,679)
  • Health (9,767)
  • Lifestyle (732)
  • News (22,149)
  • People (729)
  • Politics (735)
  • Science (15,946)
  • Sports (21,225)
  • Technology (15,712)
  • World (709)

Recent News

LensToLens: Wetlands guard bird species from plateau to urban landscape – Xinhua

How Wetlands Safeguard Bird Species Across Plateaus and Urban Landscapes

July 3, 2025
Commentary: Vatican defends science from politics, ideology and misinformation – The Salt Lake Tribune

Vatican Takes a Bold Stand: Defending Science from Politics, Ideology, and Misinformation

July 2, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version