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This bracelet is capable of measuring the posture of the body in 3D, this is how it works

BodyTrack bracelet. (photo: Cornell University)

It is quite common for millions of people to wear a smart watch or an active bracelet on their wrist, devices that have come a long way in recent times, but still cannot track the position of our entire body, although they may be exhausted. do in the future

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Now researchers at Cornell University have created a bracelet that can track the position of the entire body in 3D using only a miniature camera and also a custom deep neural network. You may see this technological advance in the next clocks smart and to know how it works, TechMarkup brings this article to explain it in detail.

Called Body Trackit’s a device intelligent sensor that can track the mechanics of the user’s body in all their physical activities.

BodyTrack bracelet. (photo: Cornell University)
BodyTrack bracelet. (photo: Cornell University)
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“Since smartwatches already have a camera, technology like BodyTrak could understand the wearer’s pose and provide real-time feedback. It is practical, affordable and does not limit the area of ​​movement of the user”, he points out. cheng zhangassistant professor of information sciences, and lead author.

This bangle-like bracelet consists of a coin-sized camera on the wrist and a deep neural network forming behind it. This neural network reads camera images or the silhouette of the user’s moving body and can 3D and nearly recreate 14 body positions in real time.

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This is how the camera that points towards the user’s body works, collecting only partial images

To challenge and test the bracelet, they conducted a user study with nine participants, each of whom performed 12 daily activities such as walking, sitting, or exercising in different settings, wearing different clothes, and with different camera settings.

Post-training results showed that the system can infer the posture of the whole body, especially 14-joint 3D poses, with an average error of 6.9cm using only a miniature RGB camera on the wrist pointed at the body.

For those interested in privacy, they explain that their camera points to the user’s body and collects only partial images, which we will see in future activity bracelets.

This research group has previously developed deep learning models to track hand and finger movements, as well as facial expressions and silent speech recognition.

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BodyTrack bracelet. (photo: Cornell University)
BodyTrack bracelet. (photo: Cornell University)

What are the reference points on the compass of the new Apple Watch and what is it for

The integrated compass inside the Apple Watch has other functions that consist of marking waypoints, locations that can be saved with names, special icons, colors and whose location will be marked on the app.

In order to use this functionality within the application of Compass Apple Watch, users will need to follow these steps:

– Open the Compass app on the Apple Watch. For this to work, the device must be compatible with the new system watch OS 9.

– Touch the button in the lower left corner of the screen, that will open the menu of options of the labels.

– The user can write the name that you want in the label that you are going to add to your list.

Waypoints in the Compass app on Apple Watch
Waypoints in the Compass app on Apple Watch

– Reference points can be personalized to have different colors and icons to differentiate them more easily.

– Click on the button Okay.

Once this process is done, users have the ability to touch these landmarks, access a complete list of all that are available in the technology team and edit the detailed content as information about the location of the point.

Waypoints in the Compass app on Apple Watch
Waypoints in the Compass app on Apple Watch

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