System for background subtraction with 3D camera

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United States of America Patent

PATENT NO 8649592
SERIAL NO

12871428

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Abstract

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A system for background image subtraction includes a computing device coupled with a 3D video camera, a processor of the device programmed to receive a video feed from the camera containing images of one or more subject that include depth information. The processor, for an image: segments pixels and corresponding depth information into three different regions including foreground (FG), background (BG), and unclear (UC); categorizes UC pixels as FG or BG using a function that considers the color and background history (BGH) information associated with the UC pixels and the color and BGH information associated with pixels near the UC pixels; examines the pixels marked as FG and applies temporal and spatial filters to smooth boundaries of the FG regions; constructs a new image by overlaying the FG regions on top of a new background; displays a video feed of the new image in a display device; and continually maintains the BGH.

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Patent Owner(s)

Patent OwnerAddress
THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS352 HENRY ADMINISTRATION BUILDING 506 SOUTH WRIGHT STREET URBANA IL 61801

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dabbelt, Daniel Palmer Weston, US 1 88
Do, Minh Ngoc Champaign, US 2 318
Lin, Dennis Jinn Urbana, US 1 88
Nguyen, Quang Huu Ho Chi Minh, VN 2 318
Patel, Sanjay Jeram Urbana, US 2 318

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