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GESTURE TRACKING AND CLASSIFICATION

  • US 20160171293A1
  • Filed: 03/28/2014
  • Published: 06/16/2016
  • Est. Priority Date: 03/28/2013
  • Status: Abandoned Application
First Claim
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1. A method of tracking the position of a body part, such as a hand, in captured images, the method comprising:

  • capturing colour images of a region to form a set of captured images;

    identifying contiguous skin-colour regions within an initial image of the set of captured images;

    defining regions of interest containing the skin-coloured regions;

    extracting image features in the regions of interest, each image feature relating to a point in a region of interest;

    and then, for successive pairs of images comprising a first image and a second image, the first pair of images having as the first image the initial image and a later image, following pairs of images each including as the first image the second image from the preceding pair and a later image as the second image;

    extracting image features, each image feature relating to a point in the second image;

    determining matches between image features relating to the second image and image features relating to in each region of interest in the first image;

    determining the displacement within the image of the matched image features between the first and second images;

    disregarding matched features whose displacement is not within a range of displacements;

    determining regions of interest in the second image containing the matched features which have not been disregarded;

    determining the direction of movement of the regions of interest between the first image and the second image.

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