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Method for recognizing three-dimensional control point and computer readable medium using the same thereof

  • US 8,433,131 B2
  • Filed: 07/19/2010
  • Issued: 04/30/2013
  • Est. Priority Date: 06/23/2010
  • Status: Active Grant
First Claim
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1. A method for recognizing three-dimensional control points, comprising:

  • receiving a depth information item corresponding to an image captured by an image capturing apparatus;

    generating a plurality of three-dimensional block information items corresponding to a plurality of three-dimensional blocks according to the depth information;

    generating at least one reference plane according to the depth information;

    generating at least one connection group according to the three-dimensional block information and the reference plane; and

    selecting a three-dimensional block nearest to the image capturing apparatus as a control point from the connection group;

    wherein the step of generating a plurality of three-dimensional block information items comprises;

    detecting a plurality of protrusions according to the depth information;

    expanding the protrusions into the three-dimensional blocks according to the depth differences between the protrusions and the pixels surrounding the protrusions; and

    generating the three-dimensional block information items corresponding to the three-dimensional blocks.

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