Method for detecting change points in motion picture images
First Claim
1. A method for detecting change points between cuts from motion picture images including a plurality of consecutive images, said method comprising the steps of:
- inputting motion picture images in a time series by taking a frame as the unit, said motion picture images being the subject of detection of change points between cuts;
producing a predetermined feature quantity including a color histogram possessed by image data of said motion picture images while taking a frame as the unit on the basis of said inputted motion picture images;
producing a correlation coefficient concerning feature quantity between said produced feature quantity of a current frame and a feature quantity produced with respect to a frame immediately preceding the current frame;
producing a change rate between said correlation coefficient and a correlation coefficient produced with respect to a frame preceding the current frame; and
detecting a time point as a change point between cuts of said motion picture images, said change rate exceeding a predetermined allowable value at said time point.
2 Assignments
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Accused Products
Abstract
There is provided a method for detecting change points between cuts from motion picture images including a plurality of consecutive images. First of all, in this method, motion picture images which are the subject of detection of change point between cuts are inputted in a time series by taking a frame as the unit, and a predetermined feature quantity including a color histogram possessed by image data of said motion picture images is produced while taking a frame as the unit. A correlation coefficient with respect to feature quantity between the above described feature quantity and a feature quantity produced in an immediately preceding frame is then produced. Further, a change rate between the correlation coefficient of the current frame and a correlation coefficient produced for a frame preceding the current frame is produced. A time point whereat the change rate exceeds a predetermined allowable value is detected as a change point between cuts of the motion picture images.
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Citations
6 Claims
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1. A method for detecting change points between cuts from motion picture images including a plurality of consecutive images, said method comprising the steps of:
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inputting motion picture images in a time series by taking a frame as the unit, said motion picture images being the subject of detection of change points between cuts; producing a predetermined feature quantity including a color histogram possessed by image data of said motion picture images while taking a frame as the unit on the basis of said inputted motion picture images; producing a correlation coefficient concerning feature quantity between said produced feature quantity of a current frame and a feature quantity produced with respect to a frame immediately preceding the current frame; producing a change rate between said correlation coefficient and a correlation coefficient produced with respect to a frame preceding the current frame; and detecting a time point as a change point between cuts of said motion picture images, said change rate exceeding a predetermined allowable value at said time point. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification