METHODS AND SYSTEMS OF UPDATING MOTION MODELS FOR OBJECT TRACKERS IN VIDEO ANALYTICS
First Claim
1. A method of maintaining one or more motion models for one or more blob trackers, comprising:
- associating a first tracker with a first blob, the first blob including pixels of at least a portion of one or more foreground objects in one or more video frames;
detecting a split of the first blob and a second blob in a current video frame; and
resetting a motion model of the first tracker in response to detecting the split of the first blob and the second blob.
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Accused Products
Abstract
Techniques and systems are provided for processing video data. For example, techniques and systems are provided for performing context-aware object or blob tracker updates (e.g., by updating a motion model of a blob tracker). In some cases, to perform a context-aware blob tracker update, a blob tracker is associated with a first blob. The first blob includes pixels of at least a portion of one or more foreground objects in one or more video frames. A split of the first blob and a second blob in a current video frame can be detected, and a motion model of the blob tracker is reset in response to detecting the split of the first blob and the second blob. In some cases, a motion model of a blob tracker associated with a merged blob is updated to include a predicted location of the blob tracker in a next video frame. The motion model can be updated by using a previously predicted location of blob tracker as the predicted location of the blob tracker in the next video frame in response to the blob tracker being associated with the merged blob. The previously predicted location of the blob tracker can be determined using a blob location of a blob from a previous video frame.
10 Citations
30 Claims
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1. A method of maintaining one or more motion models for one or more blob trackers, comprising:
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associating a first tracker with a first blob, the first blob including pixels of at least a portion of one or more foreground objects in one or more video frames; detecting a split of the first blob and a second blob in a current video frame; and resetting a motion model of the first tracker in response to detecting the split of the first blob and the second blob. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for maintaining one or more motion models for one or more blob trackers comprising:
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a memory configured to store video data; and a processor configured to; associate a first tracker with a first blob, the first blob including pixels of at least a portion of one or more foreground objects in one or more video frames; detect a split of the first blob and a second blob in a current video frame; and reset a motion model of the first tracker in response to detecting the split of the first blob and the second blob. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A computer readable medium having stored thereon instructions that when executed by a processor perform a method, comprising:
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associating a first tracker with a first blob, the first blob including pixels of at least a portion of one or more foreground objects in one or more video frames; detecting a split of the first blob and a second blob in a current video frame; and resetting a motion model of the first tracker in response to detecting the split of the first blob and the second blob. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification