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COMPUTING DEVICE AND METHOD OF DETERMINING BORDER POINTS FOR MEASURING IMAGES OF OBJECTS

  • US 20130223761A1
  • Filed: 01/25/2013
  • Published: 08/29/2013
  • Est. Priority Date: 02/29/2012
  • Status: Active Grant
First Claim
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1. A computerized method of determining border points for measuring an image of an object, the method being executed by at least one processor of a computing device and comprising:

  • (a) acquiring grayscale values of pixel points in the image being measured by the at least one processor;

    (b) computing definition values of the pixel points according to the grayscale values by the at least one processor;

    (c) constructing a line which intersects with the image being measured, and obtaining the definition values of the pixel point values in the lines by the at least one processor;

    (d) determining a location range of a border point of the image being measured using the definition values of the pixel point values in the line by the at least one processor;

    (e) determining the border point from the location range by the at least one processor;

    (f) repeating step (c) to (e) until all border points of the image being measured has been determined by the at least one processor; and

    (g) fitting a border line of the image being measured using the border points, and outputting the border line by the at least one processor.

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