Video thumbnail selection
First Claim
Patent Images
1. A method for selecting a video thumbnail, comprising:
- generating a visual theme model for a sample set of images that are representative of textual information corresponding to a video file;
identifying, for each of a plurality of image feature types, a weighted value for each of a set of features shared among the sample set of images;
distinguishing each of a set of candidate key frames according to similarities shared between that candidate key frame and the visual theme model wherein distinguishing comprises;
identifying an image feature type of the plurality of image feature types having a greatest disparity in feature value weights;
evaluating each of the candidate key frames against the weighted feature values of the identified feature type; and
ranking each of the candidate key frames according to similarities shared between that candidate key frame and the weighted feature values of the identified feature type; and
causing a display a selected one of the distinguished candidate key frames as a video thumbnail for the video file.
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Abstract
A method for selecting a video thumbnail includes generating a visual theme model for a sample set of images that are representative of textual information corresponding to a video file. Each of a set of candidate key frames is distinguished according to similarities shared between the candidate key frames and the visual theme model. A display is caused of a selected one of the distinguished candidate key frames as a video thumbnail for the video file.
33 Citations
15 Claims
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1. A method for selecting a video thumbnail, comprising:
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generating a visual theme model for a sample set of images that are representative of textual information corresponding to a video file; identifying, for each of a plurality of image feature types, a weighted value for each of a set of features shared among the sample set of images; distinguishing each of a set of candidate key frames according to similarities shared between that candidate key frame and the visual theme model wherein distinguishing comprises; identifying an image feature type of the plurality of image feature types having a greatest disparity in feature value weights; evaluating each of the candidate key frames against the weighted feature values of the identified feature type; and ranking each of the candidate key frames according to similarities shared between that candidate key frame and the weighted feature values of the identified feature type; and causing a display a selected one of the distinguished candidate key frames as a video thumbnail for the video file. - View Dependent Claims (2, 3)
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4. A non-transitory computer readable medium storing computer executable instructions that when executed implement a method for selecting a video thumbnail, the method comprising:
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generating a visual theme model for a sample set of images that are representative of textual information corresponding to a video file wherein the sample of set of images are not associated with the video file and are not frames from the video file; identifying, for each of a plurality of image feature types, a weighted value for each of a set of features shared among the sample set of images; distinguishing each of a set of candidate key frames according to similarities shared between that candidate key frame and the visual theme model by evaluating each of the candidate key frames against the weighted feature values; and causing a display a selected one of the distinguished candidate key frames as a video thumbnail for the video file wherein the selection is based on an evaluation of each of the candidate key frames against the weighted feature values. - View Dependent Claims (5, 6, 7, 8, 9)
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10. A system for selecting a video thumbnail, comprising:
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a processor in communication with a memory resource, wherein the memory resource includes a set of instructions, executable by the processing resource including; a modeling engine operable to generate a visual theme model for the sample set of images that are representative of textual information corresponding to a video file images by, for each of a plurality of image feature types, identifying a weighted value for each of a set of features shared among the sample set of images, wherein the sample set of images are not associated with the video file images and are not frames from the video file; an evaluation engine operable to distinguish each of a set of candidate key frames according to similarities shared between that candidate key frame and the visual theme model by evaluating each of the candidate key frames against the weighted feature values of the feature types and by ranking the candidate key frames; and a display engine operable to cause a display a selected one of a number of ranked candidate key frames as a video thumbnail for the video file. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification