Home Today's Paper Most Popular Video Gallery Photo Gallery
Subscription Blog Signin Register
Logo
Friday, April 27, 2018 10:29:36 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

Editorial »

Corruption becomes organisational


THE investigation teams of Anti-Corruption Commission (ACC) have got evidence about large-scale financial corruptions in 10 government organizations where the Roads and Highways Department topped the list. Second and third positions have been acquired by education and health sectors consecutively. Others are Land, Public Works Department, Chattogram Port Authority, Land ...

Sports »

Bangladesh Army Area Commander Headquarter logistic area Mejor General Ataul Hakim Sarwar Hasan giving away champoins trophy to the Tenth Infantry Division of Bangladesh Army team,who became Champions of the Bangladesh Army Watersports at Army Swimming Complex at Banani in the city on Thursday.


Entertainment »

Ankhi Alamgir busy with stage shows


Entertainment Report :Ankhi Alamgir is such a popular singer who has to be engaged with stage shows round the year at home and abroad. On April 14, 15 and 19 she took part in three countries - Paris, Vienna and Oman respectively with the invitation from expatriate Bangladeshis there. After ...

City »

BNP Secretary General Mirza Fakhrul Islam Alamgir, among others, at a discussion organised by `Sammilita Bouddha Nagorik` at the Jatiya Press Club on Thursday demanding release of the party Chairperson Begum Khaleda Zia.


Weekend Plus »

Myths, tips for healthy hair in summer


Weekend Plus Desk :Summer can bring in several hair woes. From using right serum to brushing in a proper way, experts say there are easy ways to tame your mane.Arpit Jain, founder and Managing Director of Auraine Botanicals, suggests tips to keep your hair healthy:* Hair serum: Always apply hair ...

International »

India-China summit expected to ease tensions over border


AP, New Delhi :Indian Prime Minister Narendra Modi is meeting this week with Chinese President Xi Jinping, a visit that some experts believe could reset a complicated relationship that faced several tests last year, including a tense border standoff.The meeting between the leaders of the world's two most populous nations ...

Editorial »

Stop women harassment on running buses


A DHAKA court on Tuesday placed three staffers including driver of a Turag Paribahan bus in a case filed over sexually harassing a private university female student in the running bus on her way to campus. According to the case statement, on April 21, the girl boarded the bus on ...

International »

Trump, Russia and China media attacks `threaten democracy`


AFP, Paris :Press freedom around the world is under threat from a triple whammy of US President Donald Trump, Russia and China's bid to crush all dissent, a watchdog said Wednesday.Reporters Without Borders (RSF) warned that a "climate of hatred and animosity" towards journalists combined with growing attempts to control ...

Football »

Liverpool`s Mohamed Salah celebrates with teammates after scoring his side's opening goal during the Champions League semifinal, first leg, soccer match between Liverpool and Roma at Anfield Stadium in Liverpool, England on Tuesday.


Entertainment »

Yami hopes to help kids, one book at a time


Yami Gautam, actress of the upcoming Batti Gul and Uri posted on her social media that she has just supported and donated towards setting up a library for under privileged kids in Kohlapur, Maharashtra. Her donation will help over 400 children in the area to read, learn and imagine. The ...

City »

Human rights activist Dr Hamida Hossain, among others, at a seminar on 'Socio-economic Development of Dalit Women in Bangladesh and National Budget' organised by different organisations in CIRDAP Auditorium in the city on Wednesday.


Football »

Members of Dhaka Abahani Limited during their practice session at the Abahani Ground on Tuesday.


Sports »

Senior Operative Director (Head of Games & Sports Department) of Walton Group FM Iqbal Bin Anwar Dawn (second from left) speaking at a press conference at the Club House in Army Golf Club on Tuesday.


Entertainment »

Sonam to quit Bollywood!


Sonam Kapoor's wedding has been one of the most talked about topics of discussion in the industry. A lot of speculations are being made about Sonam-Anand's wedding. Recent reports suggested that Sonam will be shifting to London post her wedding with Anand.These speculations even gave rise to rumours that Sonam ...

Editorial »

Police must not feel free to abuse police power against police discipline


A MOTORCYCLE was stolen from in front of a high police official's residence last week. Motorbikes are the easiest target for thieves. They either stealthily take away the bikes or stop the riders at night and snatch away their bikes. Sometimes, the bikers are knifed or beaten up. Last year, ...

 
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