Method and apparatus for automatic electronic replacement of billboards in a video image
First Claim
Patent Images
1. Apparatus for automatic replacement of a billboard in a video image, comprising:
- (i) a camera position store that receives input from sensors of a camera that are indicative of a position of the camera and that stores the input;
(ii) a billboard position store that stores a position of the billboard;
(iii) a processor that determines from the stored input in the camera position store and the stored position of the billboard in the billboard position store and independently of a video signal generated by the camera whether the billboard is within the field of view of the camera; and
(iv) a replacement billboard store that stores a replacement billboard for replacing the billboard when the processor determines that the billboard is within the field of view of the camera.
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Abstract
Apparatus for automatic electronic replacement of a billboard in a video image including an automatic camera orientation measurement apparatus including motion measurement means operative to measure the Field of View (FOV) of the TV camera relative to a known reference position.
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Citations
25 Claims
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1. Apparatus for automatic replacement of a billboard in a video image, comprising:
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(i) a camera position store that receives input from sensors of a camera that are indicative of a position of the camera and that stores the input;
(ii) a billboard position store that stores a position of the billboard;
(iii) a processor that determines from the stored input in the camera position store and the stored position of the billboard in the billboard position store and independently of a video signal generated by the camera whether the billboard is within the field of view of the camera; and
(iv) a replacement billboard store that stores a replacement billboard for replacing the billboard when the processor determines that the billboard is within the field of view of the camera. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for automatic measurement of camera orientation, comprising:
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(i) a sensor means for measuring a Field of View (FOV) of a camera relative to a known reference position;
(ii) an image processing means for processing video signals generated by the camera; and
(iii) a calibration means for periodically calibrating the sensor means, wherein the calibration means perspectively transforms a current camera image to generate an estminated transformed model, compares a stored image with the estimated transformed model to form a residual video field, and determines residual distortion for calibration by determining residual distortion between the estimated transformed model and the residual video field.
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16. A method of automatic replacement of a real billboard in a video image said method comprising the steps of:
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recording the Field of View (FOV) parameters of a TV camera in a first reference position by means of motion sensors attached to the camera;
storing a position of the real billboard in a billboard store;
storing a position of the camera sensed by the motion sensors in a camera position store;
determining from the camera position store and the stored position in the billboard store and independently of a video signal generated by the camera whether the real billboard is within the field of view of the camera; and
replacing the real billboard with a replacement billboard when the processor determines that the real billboard is within the field of view of the camera. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification