FitByte Monitors Diets Using Sensors Mounted on Glasses

This device monitors users’ food habits using sensors that detect chewing, swallowing, hand-to-mouth gestures, and intake visuals.

Now that people are self-isolating or are in quarantine, our eating habits are beginning to change. According to an article from Endcaps and Insights, people are spending more on groceries, eating more, and snacking throughout the day. While you could use a bathroom scale to monitor your diet, engineers from Carnegie Mellon University have designed a pair of glasses that can do that for you instead.

The FitByte glasses are outfitted with sensors that track eating habits using a sensing system that monitors sound, vibration, and movement with accuracy. The wearable could help users stay on a healthy diet and reach caloric goals by tracking behavioral patterns, which practitioners could then use as a tool to understand the connection between diet and disease better, and ultimately use for treatment.

FitByte tracks all stages of food intake, such as hand-to-mouth movements, chewing, swallowing, and intake visuals. The engineers created the wearable using a series of sensors, including an infrared proximity sensor that monitors gestures and four gyroscopes that monitor jaw motions. The gyroscopes are mounted behind the ears to track the flexing of temporal muscles as the jaws move while eating. High-speed accelerometers are equipped near the glasses ear stems to monitor throat vibrations as users chew, while a small camera positioned on the front of the glasses to monitor motion in the area around the mouth.

As it stands now, the FitByte relies on users to identify food or drink using photos, but the engineers are looking to develop algorithms to discern food/drink types automatically. They also plan to add additional sensors that will detect blood glucose levels and other critical physical data, as well as an app to share data with other users.

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