Detection of action frames of a video stream
First Claim
Patent Images
1. An apparatus comprising:
- a memory configured to store a plurality of image frames corresponding to a video stream;
a first object detector configured to determine whether a first image frame of the plurality of image frames includes a first object;
a first object motion analyzer configured to, subsequent to the first object detector determining that the first image frame includes the first object, analyze the first image frame to generate first motion data corresponding to the first object;
a trigger detector configured to detect a trigger based on determining that the first motion data satisfies a first object motion threshold, the first object motion threshold determined based on data associated with one or more image frames, the one or more image frames prior to the first image frame in the plurality of image frames; and
a frame designator configured to designate a second image frame of the plurality of image frames as an action frame based on the trigger.
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Abstract
A method includes receiving, at a device, a plurality of image frames corresponding to a video stream. The plurality of image frames include a first image frame having a first resolution and a second image frame having a second resolution that is lower than the first resolution. The method also includes detecting, at the device, a trigger by analyzing the second image frame. The method further includes designating, at the device, the first image frame as an action frame based on the trigger.
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Citations
28 Claims
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1. An apparatus comprising:
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a memory configured to store a plurality of image frames corresponding to a video stream; a first object detector configured to determine whether a first image frame of the plurality of image frames includes a first object; a first object motion analyzer configured to, subsequent to the first object detector determining that the first image frame includes the first object, analyze the first image frame to generate first motion data corresponding to the first object; a trigger detector configured to detect a trigger based on determining that the first motion data satisfies a first object motion threshold, the first object motion threshold determined based on data associated with one or more image frames, the one or more image frames prior to the first image frame in the plurality of image frames; and a frame designator configured to designate a second image frame of the plurality of image frames as an action frame based on the trigger. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An apparatus comprising:
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means for storing a plurality of image frames corresponding to a video stream; first means for analyzing a first image frame of the plurality of image frames to generate first motion data corresponding to a first object; means for determining that the first image frame includes the first object based on determining that the first motion data satisfies a first object motion threshold, the first object motion threshold determined based on data associated with one or more image frames, the one or more image frames prior to the first image frame in the plurality of image frames; means for detecting a trigger based on determining that the first image frame includes the first object; and means for designating a second image frame of the plurality of image frames as an action frame based on the trigger. - View Dependent Claims (25, 26)
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27. An apparatus comprising:
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means for storing a plurality of image frames corresponding to a video stream; means for determining whether a first image frame of the plurality of image frames includes a first object; means for analyzing the first image frame to generate first motion data indicative of motion of the first object when the first image frame includes the first object; means for detecting a trigger when the first motion data satisfies a first object motion threshold, the first object motion threshold determined based on data associated with one or more image frames, the one or more image frames prior to the first image frame in the plurality of image frames; and means for designating a second image frame of the plurality of image frames as an action frame based on the trigger. - View Dependent Claims (28)
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Specification