Invention Grant
- Patent Title: Background detection as an optimization for gesture recognition
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Application No.: US14485186Application Date: 2014-09-12
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Publication No.: US09117112B2Publication Date: 2015-08-25
- Inventor: Thor Carpenter , Frank Petterson , Janahan Vivekanandan
- Applicant: Google Inc.
- Applicant Address: US CA Mountain View
- Assignee: Google Inc.
- Current Assignee: Google Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Fish & Richardson P.C.
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06K9/48 ; G06K9/40 ; G06T7/00

Abstract:
Methods and systems are provided allowing for background identification and gesture recognition in video images. A computer-implemented image processing method includes: receiving, using at least one processing circuit, a plurality of image frames of a video; constructing, using at feast one processing circuit, a plurality of statistical models of the plurality of image frames at a plurality of pixel granularity levels; constructing, using at least one processing circuit, a plurality of probabilistic models of an input image frame at a plurality of channel granularity levels based on the plurality of statistical models; merging at least some of the plurality of probabilistic models based on a weighted average to form a single probability image; determining background pixels, based on a probability threshold value, from the single probability image; and determining whether the plurality of image frames, when examined in a particular sequence, conveys a gesture by the object.
Public/Granted literature
- US20150003727A1 Background detection as an optimization for gesture recognition Public/Granted day:2015-01-01
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