Video comparison using color histograms
First Claim
1. A method to compare video sequences, the method comprising:
- determining, by executing an instruction with a processor, a color histogram corresponding to an input video sequence based on color values of pixels sampled from a plurality of video frames of the input video sequence;
adjusting, by executing an instruction with the processor, the color histogram corresponding to the input video sequence based on a first reference color histogram corresponding to a first reference video sequence different from the input video sequence to determine an adjusted color histogram corresponding to the input video sequence; and
comparing, by executing an instruction with the processor, the adjusted color histogram and the first reference color histogram to determine whether the first reference video sequence matches the input video sequence.
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Abstract
Methods, apparatus and articles of manufacture for video comparison using color histograms are disclosed. Example methods disclosed herein to compare video sequences include determining a color histogram corresponding to an input video sequence based on color values of pixels sampled from a plurality of video frames of the input video sequence. Such disclosed example methods also include adjusting the color histogram corresponding to the input video sequence based on a first reference color histogram corresponding to a first reference video sequence different from the input video sequence to determine an adjusted color histogram corresponding to the input video sequence. Such disclosed example methods further include comparing the adjusted color histogram and the first reference color histogram to determine whether the first reference video sequence matches the input video sequence.
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Citations
20 Claims
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1. A method to compare video sequences, the method comprising:
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determining, by executing an instruction with a processor, a color histogram corresponding to an input video sequence based on color values of pixels sampled from a plurality of video frames of the input video sequence; adjusting, by executing an instruction with the processor, the color histogram corresponding to the input video sequence based on a first reference color histogram corresponding to a first reference video sequence different from the input video sequence to determine an adjusted color histogram corresponding to the input video sequence; and comparing, by executing an instruction with the processor, the adjusted color histogram and the first reference color histogram to determine whether the first reference video sequence matches the input video sequence. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A tangible computer readable medium comprising computer readable instructions which, when executed, cause a processor to at least:
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determine a color histogram corresponding to an input video sequence based on color values of pixels sampled from a plurality of video frames of the input video sequence; adjust the color histogram corresponding to the input video sequence based on a first reference color histogram corresponding to a first reference video sequence different from the input video sequence to determine an adjusted color histogram corresponding to the input video sequence; and compare the adjusted color histogram and the first reference color histogram to determine whether the first reference video sequence matches the input video sequence. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An apparatus comprising:
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a histogram generator to determine a color histogram corresponding to an input video sequence based on color values of pixels sampled from a plurality of video frames of the input video sequence; and a histogram comparator to; adjust the color histogram corresponding to the input video sequence based on a first reference color histogram corresponding to a first reference video sequence different from the input video sequence to determine an adjusted color histogram corresponding to the input video sequence; and compare the adjusted color histogram and the first reference color histogram to determine whether the first reference video sequence matches the input video sequence. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification