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Method and device for bounding an object in a video

  • US 9,847,102 B2
  • Filed: 05/15/2016
  • Issued: 12/19/2017
  • Est. Priority Date: 05/18/2015
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • obtaining a position of a first subset of pixels in an object in at least one frame of a video sequence according to selection data received from a user interface;

    obtaining a subset of pixels per frame of the video sequence, resulting in a plurality of subsets of pixels, by interpolating the position of the first subset of pixels to the video sequence;

    obtaining a first image from a first spatio-temporal slicing, wherein said first image is a horizontal concatenation of first slices comprising the subset of pixels for frames along said video sequence;

    obtaining a second image from a second spatio-temporal slicing, wherein said second image is a vertical concatenation of second slices comprising the subset of pixels for said frames along said video sequence, each of said second slices being orthogonal to the first slice of a same frame;

    obtaining on each of said first and second images a first and a second boundary around the plurality of subsets of pixels per frame by means of a contour detection method;

    wherein the coordinates of said four points in a frame t are obtained from the coordinates of the points located in the first and second boundary of the first and second image for that frame t.

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