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Calorie Counting Gets Easier With New Health Monitor

by Thilaka Ravi on September 11, 2013 at 8:18 AM
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Calorie Counting Gets Easier With New Health Monitor

A new health monitor not only documents what a person eats, but also accurately matches those images against a geometric-shape library, making it easier to count calories.

The study demonstrates a new computational tool that has been added to the prototype-a device that fastens to the shirt like a pin. Using its newly built comprehensive food-shape library, the eButton can now extract food from 2D and 3D images and, using a camera coordinate system, evaluate that food based on shape, color, and size.

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The researchers, who are trying to remove the guess work from the dieting process, said that visually gauging the size of a food based on an imaginary measurement unit is very subjective, and some individuals don't want to track what they consume.

eButton now includes a library of foods with nine common shapes: cuboid, wedge, cylinder, sphere, top and bottom half spheres, ellipse, half ellipse, and tunnel.
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The device snaps a series of photos while a person is eating, and its new formula goes to work: removing the background image, zeroing in on the food, and measuring its volume by projecting and fitting the selected 3D shape to the 2D photograph using a series of mathematical equations.

The study is published in Measurement Science and Technology.

Source: ANI
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