SYSTEMS AND METHODS FOR SEMANTICALLY CLASSIFYING AND NORMALIZING SHOTS IN VIDEO
First Claim
1. A method, comprising:
- receiving a video file comprising a plurality of scenes, each scene of the plurality of scenes comprising a plurality of frames;
for each scene of the plurality of scenes;
determining, based on one or more classifiers, that one or more frames from the scene includes content associated with one or more predefined scene categories;
assigning, based on the one or more predefined scene categories associated with the one or more frames, one or more scene categories to the scene;
storing, in one or more indexes, data indicating (a) the one or more scene categories assigned to each scene of the plurality of scenes, and (b) a start time and end time for each scene of the plurality of scenes.
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Abstract
The present disclosure relates to systems and methods for classifying videos based on video content. For a given video file including a plurality of frames, a subset of frames is extracted for processing. Frames that are too dark, blurry, or otherwise poor classification candidates are discarded from the subset. Generally, material classification scores that describe type of material content likely included in each frame are calculated for the remaining frames in the subset. The material classification scores are used to generate material arrangement vectors that represent the spatial arrangement of material content in each frame. The material arrangement vectors are subsequently classified to generate a scene classification score vector for each frame. The scene classification results are averaged (or otherwise processed) across all frames in the subset to associate the video file with one or more predefined scene categories related to overall types of scene content of the video file.
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Citations
30 Claims
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1. A method, comprising:
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receiving a video file comprising a plurality of scenes, each scene of the plurality of scenes comprising a plurality of frames; for each scene of the plurality of scenes; determining, based on one or more classifiers, that one or more frames from the scene includes content associated with one or more predefined scene categories; assigning, based on the one or more predefined scene categories associated with the one or more frames, one or more scene categories to the scene; storing, in one or more indexes, data indicating (a) the one or more scene categories assigned to each scene of the plurality of scenes, and (b) a start time and end time for each scene of the plurality of scenes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. One or more non-transitory storage media storing instructions which, when executed by one or more computing devices, cause:
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receiving a video file comprising a plurality of scenes, each scene of the plurality of scenes comprising a plurality of frames; for each scene of the plurality of scenes; determining, based on one or more classifiers, that one or more frames from the scene includes content associated with one or more predefined scene categories; assigning, based on the one or more predefined scene categories associated with the one or more frames, one or more scene categories to the scene; storing, in one or more indexes, data indicating (a) the one or more scene categories assigned to each scene of the plurality of scenes, and (b) a start time and end time for each scene of the plurality of scenes. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus comprising:
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a subsystem, implemented at least partially in hardware, that receives a video file comprising a plurality of scenes, each scene of the plurality of scenes comprising a plurality of frames; a subsystem, implemented at least partially in hardware, that for each scene of the plurality of scenes; determines, based on one or more classifiers, that one or more frames from the scene includes content associated with one or more predefined scene categories; assigns, based on the one or more predefined scene categories associated with the one or more frames, one or more scene categories to the scene; a subsystem, implemented at least partially in hardware, that stores, in one or more indexes, data indicating (a) the one or more scene categories assigned to each scene of the plurality of scenes, and (b) a start time and end time for each scene of the plurality of scenes - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification