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Image processing system and method thereof in which three dimensional shape is reproduced from two dimensional image data

  • US 5,548,667 A
  • Filed: 09/07/1994
  • Issued: 08/20/1996
  • Est. Priority Date: 05/24/1991
  • Status: Expired due to Term
First Claim
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1. A method for detecting fingers of a human hand, comprising the steps of:

  • reading the hand and outputting image data of the hand in a form of two-dimensional pixel data;

    detecting edges of the hand on the basis of said pixel data;

    determining image lines as lines having the greatest number of edge pixels;

    determining the orientation line of the hand as the line having the average slope and Y intercept of said image lines;

    searching the pixel data for edge pixels wherein the search is statistically biased in a direction parallel to the orientation line; and

    clustering edge pixels defining said finger tips;

    wherein said steps of determining image lines and determining the orientation line includetransforming a rectilinear coordinate system of said detected edges into a polar coordinate system,accumulating edge points in the parameter space, andobtaining the highest accumulated values for each of said lines to determine said orientation line of the hand.

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