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Estimation of food volume and carbs

  • US 9,892,501 B2
  • Filed: 12/22/2015
  • Issued: 02/13/2018
  • Est. Priority Date: 07/02/2013
  • Status: Expired due to Fees
First Claim
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1. A system for estimating the carbs content of food on a plate (single or multiple), said system comprising instructions which when performed by a processor causes the system to operate to:

  • receive a first image of the food from an image acquisition component;

    project a light pattern on the surface of the food with a light pattern projection component;

    receive a second image of the food being highlighted with said light pattern from the image acquisition component;

    identify a movement of the image acquisition component between the first and second image;

    correct the first and/or the second image by an operation which compensates the movements of the image acquisition component throughout the image acquisition operation based on the artifacts to get a corrected pair of images;

    subtract the first and second images of the corrected pair of images;

    identify the projected light pattern on the food based upon a subtraction of the first and second corrected image; and

    compute the tridimensional shape and the volume of the food given the deformations of the projected light pattern;

    make segmentation and recognition of the food from the first image; and

    compute the carbs content of the food based upon the volume, segmentation and recognition of food via use of nutritional databases.

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