Invention Grant
- Patent Title: Video data background tracking and subtraction with multiple layers of stationary foreground and background regions
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Application No.: US15442880Application Date: 2017-02-27
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Publication No.: US10438072B2Publication Date: 2019-10-08
- Inventor: Shalender Singh
- Applicant: Echelon Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Echelon Corporation
- Current Assignee: Echelon Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Locke Lord LLP
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06T7/194 ; G08G1/04 ; G06T7/11 ; G06T7/143 ; G06T7/174 ; G06K9/62

Abstract:
Transient connected regions are tracked in a video sequence, marking them as foreground layer or background layer when the transient regions become stable. A stack of background/foreground Gaussian mixer models is maintained for each pixel. The decision to mark a stable region as background layer or a new or existing foreground layer is done by matching the region with each model in the model stack. If the new region matches an existing model, then the layers above the matched layers are purged, or else the new region is pushed as a new foreground layer with a new model.
Public/Granted literature
- US20180247136A1 VIDEO DATA BACKGROUND TRACKING AND SUBTRACTION WITH MULTIPLE LAYERS OF STATIONARY FOREGROUND AND REGIONS Public/Granted day:2018-08-30
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