METHOD AND RELATED SYSTEM FOR HIGH EFFICIENCY ADVERTISING DETECTION
First Claim
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1. A method for detecting an advertisement in a video signal, the method comprising:
- performing a difference comparing step to determine a difference between sequential frames of the video signals in order to set a pair of differential indicators, wherein if the difference between the frame and the prior frame is more than a threshold difference, the difference becomes a reference frame; and
searching for target frame to determine the location of an advertisement section with same differential indicator within a plurality of frames prior to the reference frame.
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Abstract
In the video signals provided by broadcasting media, advertising sections are inserted between normal programs, thus causing interruption. An end portion of the normal program will be repeated before an advertising section ends. The invention determines the continuity of two adjacent frames, to search for frame discontinuity to find out if there is a frame similar to a next given frame. If a similar frame is found to have an advertising frame, an advertisement is detected.
31 Citations
20 Claims
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1. A method for detecting an advertisement in a video signal, the method comprising:
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performing a difference comparing step to determine a difference between sequential frames of the video signals in order to set a pair of differential indicators, wherein if the difference between the frame and the prior frame is more than a threshold difference, the difference becomes a reference frame; and
searching for target frame to determine the location of an advertisement section with same differential indicator within a plurality of frames prior to the reference frame. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A signal processing system capable of detecting an advertisement in a video signal, the signal processing system comprising:
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a difference comparing module for performing a difference comparing step to determine a difference between a frame and a prior frame of the video signal in order to set a pair of differential indicators, wherein if the difference between the frame and the prior frame is more than a threshold difference, the difference becomes a reference frame; and
a searching module for searching for a target frame to determine the location of an advertisement section with same differential indicator within a plurality of frames prior to the reference frame. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A recording system capable of filtering advertisements in a video signal, the recording system comprising:
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a video decoder unit for decoding video signals and re-arranging filtered advertisements; and
a video frame buffer unit for storing decoded video signals and transferring decoded video signals to a display control unit;
an advertisement system for detecting advertisements according to a predetermined formula and opposition flags of each decoded video signal frame; and
an advertisement filtering system for forwarding video signals based on advertisements filtered by the advertisement detecting system to the video decoder unit for code arrangement. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification