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Produce size recognition system

  • US 6,310,964 B1
  • Filed: 10/28/1999
  • Issued: 10/30/2001
  • Est. Priority Date: 02/17/1995
  • Status: Expired due to Fees
First Claim
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1. A method for characterizing size features of a commodity, said method comprising the steps of:

  • scanning at least one target object illuminated with a light of a first brightness to acquire a first image and scanning said at least one target object illuminated with a light of a second brightness different from said first brightness to acquire a second image, said target objects being produce of a same variety or type and at a same position when said first and second images are acquired, wherein a visual input device is used for receiving a scanned scene image, the scene image including the image of the at least one target object and a background image;

    scanning at least one target object taking a first digitized image of the at least one target object illuminated at a higher level and taking a second digitized image of the at least one target object illuminated at a lower level;

    identifying visual characteristics by segmenting the at least one target object from the background image using a processed scene image generated from a combination of the first and second digitized images;

    identifying visual characteristics associated with said first and second images of the at least one target object in the scene image;

    segmenting the at least one target image from the background image by comparing said first and second images; and

    processing the segmented target image and classifying said at least one target object, by size, using the identified visual characteristics.

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