Analyzing a segment of video
First Claim
1. A method of analyzing a segment of video comprising frames, the frames comprising pixels, the method comprising:
- extracting a respective line portion from a location on each frame of a plurality of frames of the segment of video, each respective line portion comprising a portion of pixels of the respective frame of the plurality of frames;
arranging the respective line portions from the location on each frame of the plurality of frames to form a visual summary,detecting a portion of the pixels of the visual summary as corresponding to an object, in which one of the frames of the plurality of frames is a reference frame, and the portion of the pixels of the visual summary detected as corresponding to the object are detected as corresponding to the object based on a comparison of the pixels to corresponding pixels of the reference frame, and in which the portion of the pixels of the visual summary detected as corresponding to the object are detected as corresponding to the object based on a measure of the differences of the pixels of the portion of the pixels of the visual summary and the corresponding pixels of the reference frame, the portion of the pixels of the visual summary detected as corresponding to the object having a shape; and
determining a property of an event based on the shape of the portion of the pixels of the visual summary detected as corresponding to the object.
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Abstract
There is disclosed a quick and efficient method for analyzing a segment of video, the segment of video having a plurality of frames. A reference portion is acquired from a reference frame of the plurality of frames. Plural subsequent portions are then acquired from a corresponding subsequent frame of the plurality of frames. Each subsequent portion is then compared with the reference portion, and an event is detected based upon each comparison. There is also disclosed a method of optimizing video including selectively storing, labeling, or viewing video based on the occurrence of events in the video. Furthermore, there is disclosed a method for creating a video summary of video which allows a used to scroll through and access selected parts of a video. The methods disclosed also provide advancements in the field of video surveillance analysis.
88 Citations
17 Claims
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1. A method of analyzing a segment of video comprising frames, the frames comprising pixels, the method comprising:
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extracting a respective line portion from a location on each frame of a plurality of frames of the segment of video, each respective line portion comprising a portion of pixels of the respective frame of the plurality of frames; arranging the respective line portions from the location on each frame of the plurality of frames to form a visual summary, detecting a portion of the pixels of the visual summary as corresponding to an object, in which one of the frames of the plurality of frames is a reference frame, and the portion of the pixels of the visual summary detected as corresponding to the object are detected as corresponding to the object based on a comparison of the pixels to corresponding pixels of the reference frame, and in which the portion of the pixels of the visual summary detected as corresponding to the object are detected as corresponding to the object based on a measure of the differences of the pixels of the portion of the pixels of the visual summary and the corresponding pixels of the reference frame, the portion of the pixels of the visual summary detected as corresponding to the object having a shape; and determining a property of an event based on the shape of the portion of the pixels of the visual summary detected as corresponding to the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of analyzing a segment of video comprising frames, the frames comprising pixels, the method comprising:
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extracting a respective line portion from a location on each flame of a plurality of frames of the segment of video, each respective line portion comprising a portion of pixels of the respective flame of the plurality of frames; detecting a plurality of the line portions as corresponding to an object, in which one of the frames of the plurality of frames is a reference frame, and the plurality of line portions detected as corresponding to the object is detected as corresponding to the object based on a comparison of the pixels of the plurality of line portions to corresponding pixels of the reference frame, and in which each line portion of the plurality of line portions detected as corresponding to the object is detected as corresponding to the object based on a measure of the differences of the pixels of the line portion of the plurality of line portions and the corresponding pixels of the reference frame; and determining a property of an event based on the plurality of line portions corresponding to the object. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification