INTERACTIVE TELEVISION BROADCAST
First Claim
Patent Images
1. A method for providing data for an interactive television broadcast, the method comprising;
- shooting a view comprising an object of interest by a camera;
generating, based on the images captured by the camera, a video signal (PGM) determining a television picture comprising an area of interest according to the object of interest;
generating area of interest data (AUX) determining the size, shape and location of the area of interest;
transmitting the video signal (PGM) and the area of interest data (AUX); and
characterised in that generating the area of interest data (AUX) comprises;
arranging in a particular location relative to the object of interest a marking surface operating as a source of radiation differing from the radiation from its surroundings;
shooting the view by a detector responsive to the radiation from the marking surface;
determining the area of interest within the television picture on the basis of said particular location, the location of the marking surface area within the image area of the detector, and the relationship between the image area coordinates of the camera and the detector.
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Accused Products
Abstract
In the method for providing an interactive television broadcast, an area of interest in a television picture, corresponding to an object of interest shown in the picture and intended to be associated with interactivity, is determined by means of a marking surface arranged in a particular location relative to the object of interest and differing from the marking surface surroundings on the basis of the radiation from it, the marking surface being detected by a detector sensitive to said radiation.
11 Citations
10 Claims
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1. A method for providing data for an interactive television broadcast, the method comprising;
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shooting a view comprising an object of interest by a camera; generating, based on the images captured by the camera, a video signal (PGM) determining a television picture comprising an area of interest according to the object of interest; generating area of interest data (AUX) determining the size, shape and location of the area of interest; transmitting the video signal (PGM) and the area of interest data (AUX); and characterised in that generating the area of interest data (AUX) comprises; arranging in a particular location relative to the object of interest a marking surface operating as a source of radiation differing from the radiation from its surroundings; shooting the view by a detector responsive to the radiation from the marking surface; determining the area of interest within the television picture on the basis of said particular location, the location of the marking surface area within the image area of the detector, and the relationship between the image area coordinates of the camera and the detector. - View Dependent Claims (2, 5, 6, 7, 8, 9, 10)
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3. (canceled)
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4. (canceled)
Specification