Home Today's Paper Most Popular Video Gallery Photo Gallery
Subscription Blog Signin Register
Logo
Tuesday, October 15, 2019 03:58:35 AM
Follow Us On: Facebook Twitter Twitter Twitter Twitter

Smartphone accessory could be used as a breathing monitor

photo by

By
18th-Sep-2017       
Comments
Share your thought
Post a comment »
Read all () »

Life Desk :
A new software combined with a low-cost thermal camera attached to the mobile phones can be used to track how fast a person is breathing. The research team from the University College London reported in The Optical Society (OSA) journal Biomedical Optics Express that their new software combined with a low-cost thermal camera performed well when analyzing breathing rate during tests.
"As thermal cameras continue to get smaller and less expensive, we expected that phones, computers and augmented reality devices will one day incorporate thermal cameras that can be used for various applications. By using low-cost thermal cameras, our work is a first step toward bringing thermal imaging into people's everyday lives. This approach can be used in places other sensors might not work or would cause concern," said, Nadia Bianchi-Berthouze from University College London, (UK) and leader of the research team.
The mobile thermal imaging could be used to monitor breathing rate in Older adults who live alone People with sleep apnea and Babies at risk for sudden infant death syndrome (SIDS)
'Tracking respiratory rate requires sophisticated equipment. Now, a new software allows portable, low-cost thermal cameras attached to smartphones to detect breathing problems and monitor stress.'
In future, the new approach could allow the camera on the computer to detect subtle breathing irregularities associated with pain, stress and send prompts to help relax and regulate breathing. Traditional video cameras were used to track breathing, but they don't work well in low-light situations and cause privacy concerns when used for monitoring in nursing homes.
"Thermal cameras can detect breathing at night and during the day without requiring the person to wear any type of sensor. Compared to a traditional video camera, a thermal camera is more private because it is more difficult to identify the person," said Youngjun Cho, first author of the paper.
Thermal cameras have been used in a variety of monitoring applications. It uses infrared wavelengths to reveal the temperature of an object or scene. In the recent years, the size of the thermal camera has dropped enough to make them practical for personal use.
Initially, large, expensive thermal imaging systems were used to measure breathing rate by monitoring temperature changes inside the nostrils. The research team wanted to use the new portable systems to do the same by creating a smartphone-based respiratory tracking method that could be used in almost any environment or activity. But, mobile thermal imaging was affected by changes in air temperature and body movement.
To solve these problems, the research team developed software that can be used with any thermal camera to compensate for temperature changes and accurately track the nostrils while the person is moving.
The new software also improved the way breathing signals are processed. Earlier, 2D pixels were used to average the temperature readings around the nostrils. Now, the research team has developed a 3D surface to create a more refined measurement of temperature in the nostrils.
How Mobile Thermal Imaging Measure Breathing Rate?
The research team conducted indoor laboratory tests and outdoor tests to check the device. In outdoor tests, the mobile thermal imaging approach was used to measure the breathing of volunteers in a scenario that involved breathing exercises with changes in temperature. A fully unconstrained test was also conducted, where the volunteers walked around inside and outside of a building.
During the walking test, the thermal camera was placed between 20 and 30 centimeters from a person's face. A rig was used to attach the camera to a hat and a cord connected the camera with a mobile phone carried by the volunteers. It is also possible to hold a smartphone with an imaging camera about 50 centimeters from the face to measure breathing rate.
In all the tests, the algorithms showed better performance in tracking the nostril area than other state-of-the-art methods. In estimating the breathing rate, the tests conducted outdoors showed the best results when compared with the latest algorithms.
"Although the results were comparable to the traditional breathing belt sensor, for mobile situations our approach seems to be more stable because the belt tends to get loose," said Cho.
The new approach is more stable than the standard method. This could also be used to optimize an athlete's performance by providing more reliable and accurate feedback on breathing patterns during exercise.
The research team took the thermal imaging software one step further by inferring a person's mental load or stress through automatic breathing analysis.
Thermal imaging software was used to track the breathing of the volunteers who were free to move around while performing various tasks. The results aligned well with findings from studies that used the much more sophisticated equipment. The findings suggest that the portable thermal-camera based approach could be a useful tool for apps that help people relax.
The results obtained from mobile thermal imaging were similar to that of other studies. However, other studies used complex techniques that involved multiple sensors monitoring breathing as well as heart rate, said Bianchi-Berthouze.

Source: Medindia

Tariff
Add Rate

News Archive

Inside The New Nation

Sports »

'Best ever' Biles hails record 25 world medals


US gymnastics star Simone Biles won her fifth gold medal in the women's floor final Sunday to conclude her "best ever" world championships and take her career record to 25 medals.Biles, who won the beam title earlier in the day, also claimed an unrivalled 19th world gold following her previous ...

City »

President M Abdul Hamid witnessing the progress of different ongoing development projects in Itna Upazila of Kishoreganj on Monday.


International »

Any attempt to split China will be ‘crushed’, Xi warns during maiden visit to Nepal


PTI, Kathmandu :President Xi Jinping warned on Sunday that anyone attempting to "split" China will be "crushed" as he held wide-ranging talks with Nepal's top leadership and the two countries elevated their bilateral ties to strategic partnership and signed a slew of agreements, including a plan to build a trans-Himalayan ...

Editorial »

Expand infrastructural facilities in the universities


WHEN most of the country's public universities are going through a crisis situation at that time fresh unrest that erupted among the female students of Chattogram University has drawn the attention of concerned circles. Newspaper reports said female students of CU padlocked the gate of Jananetri Sheikh Hasina Hall on ...

Entertainment »

Ankhi Alamgir: Uncontested singer on stage performance


Sheikh Arif Bulbon :Ankhi Alamgir is such a singer who always gets priority from the audience to perform on the stage shows. She has a capability to enthrall the audience by virtue of her outstanding performance. In fact, most of the senior and junior singers love her lot. Ankhi is ...

Entertainment »

Mouni Roy rubbishes rumours of dating a Dubai based banker


Mouni Roy has a made a smooth transition from television to films and is now promoting Made in China with Rajkummar Rao. But just like every actor has to face the brunt of controversies, one seems to have fallen right into Mouni's lap. She's been in the news for allegedly ...

Editorial »

Income inequality is the main barrier


THE number of bank accounts having more than Tk 1 crore in deposit has increased almost three times along with a five times rise in the deposited money in those accounts over the last 10 years. Economists said that such rise in high net-worth population indicated that the rich are ...

Sports »

Medvedev thumps Zverev to win Shanghai Masters title


Daniil Medvedev won his fourth title of a spectacular year with a thumping 6-4, 6-1 victory over Alexander Zverev in the Shanghai Masters final on Sunday.Victory for the 23-year-old Russian, contesting a sixth final in a row, was more evidence that he is the prime contender to join the "Big ...

Football »

Italy clinch place at Euro 2020 as Spain have to wait


Italy became the second team to qualify for Euro 2020 after a 2-0 win over Greece on Saturday, while three-time champions Spain edged closer to the finals despite conceding a stoppage-time equaliser away to Norway.Chelsea midfielder Jorginho dispatched a second-half penalty as Italy, wearing green kits for just the second ...

International »

Impeachment probe overshadows US 2020 Democratic race


Joe Biden faces scrutiny over Ukraine, Elizabeth Warren is surging and Bernie Sanders had a heart attack, but recent developments in the Democratic presidential battle are getting minimal attention, swamped by Washington's impeachment obsession.Most Democratic candidates are pounding the pavement in early voting states like Iowa, but they are finding ...

International »

Britain's PM Johnson pushes for last-ditch Brexit deal


Prime Minister Boris Johnson was to brief his ministers Sunday on progress in Britain's last-ditch efforts to strike a new Brexit agreement with the EU.Negotiators went behind closed doors for intensive talks in Brussels after Johnson outlined a new set of divorce terms to Irish Prime Minister Leo Varadkar on ...

City »

President asks govt officials to perform duties at designated places


President M Abdul Hamid on Sunday asked government officials to do their jobs properly staying at their assigned places to gear up the development of local areas as well as the whole country."Do your job properly staying at your respective assigned places. . . If you don't have such mentality ...

Editorial »

Steps needed to keep prices stable in kitchen market


THE prices of vegetables, fish and meat went up in the city's kitchen markets over the week ending Friday. Traders said that prices of most of the vegetables increased as the supply of summer vegetables became near end and the winter vegetables started hitting the market. The prices of most ...

Sports »

Boxer Fury to make pro wrestling debut in Saudi Arabia


AFP, Las Vegas :A pair of pugilistic big men will clash in a cross over of combat sports as former boxing champion Tyson Fury fights Braun Strowman in Saudi Arabia later this month.Fury will make the brief switch to professional wrestling when he fights on a World Wrestling Entertainment Inc. ...

International »

US bolsters Saudi defense against Iran with jets, missiles


AP, Washington  : The U.S. is deploying dozens more fighter jets and additional air defenses to Saudi Arabia, beefing up efforts to defend the kingdom against Iran even as President Donald Trump repeatedly insists that America must get out of endless Middle East wars.Defense Secretary Mark Esper announced the deployments Friday ...

 
Items that you save may be read at any time on your computer, iPad, iPhone or Android devices.
 
Are you new to our website? Do you have already an account at our website?
Create An Account Log in here
Email this news to a friend or like someone
Email:
Write a comment to this news