Starting this month, you can measure heart rate and repository rate from your phone’s camera only. For the repository rate, you have to bring your head and face in front of the camera and for heart rate you have to put your finger on the rear camera lens of the phone.
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This measurement will not be used to evaluate medical diagnosis or medical conditions. Patel hoped that people can take good care of their health by tracking their wellness daily through this app. Prior to launching this product, Google did an initial clinical verification to test its accuracy, and tests conducted on several people found it to be accurate in counting every breath.
The process used to detect heart rate is called photoplethsmography (PPG), which is usually picked using special sensors. According to the Fitzpatrick scale, Google has already completed initial diagnostic validation to test the performance of algorithms among people with different skin types. Its algorithm has been found to be accurate on average in all categories within two percent.
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Patel said in a blog post that thanks to fast-moving sensors and advances in computer vision, these features allow the smartphone’s camera to be used to track tiny physical signals at the pixel level such as chest movements. Is used to measure their respiratory rate and changes.