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System for food recognition method using portable devices having digital cameras

  • US 8,625,889 B2
  • Filed: 12/30/2010
  • Issued: 01/07/2014
  • Est. Priority Date: 12/30/2010
  • Status: Active Grant
First Claim
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1. A method for food recognition using a portable device equipped with a digital camera to record food and calories, the method comprising:

  • segmenting items of food of a top-view photo of a plate of food into regions using the centers, selected by a user, of each item of food;

    broadening the regions based on each center and on different color spaces (HSV, RGB, and LAB);

    providing three hypotheses of segments chosen for each center to obtain robust results from the segmentation;

    training, for each hypothesis, a Support Vector Machine (SVM) having a radial based kernel-type function;

    obtaining, from a predetermined menu of food images, a list of probabilities for each segment of food;

    choosing the segment with the highest probability; and

    showing the results of segmented food and their possible identifications.

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