US 8,229,163 B2Granted

4D GIS based virtual reality for moving target prediction

AssigneeAmerican GNC Corporation

InventorsNorman P. Coleman, Ching-Fang Lin

Life of this patent

Estimating the term…

Loading patent…

Abstract

The technology of the 4D-GIS system deploys a GIS-based algorithm used to determine the location of a moving target through registering the terrain image obtained from a Moving Target Indication (MTI) sensor or small Unmanned Aerial Vehicle (UAV) camera with the digital map from GIS. For motion prediction the target state is estimated using an Extended Kalman Filter (EKF). In order to enhance the prediction of the moving target's trajectory a fuzzy logic reasoning algorithm is used to estimate the destination of a moving target through synthesizing data from GIS, target statistics, tactics and other past experience derived information, such as, likely moving direction of targets in correlation with the nature of the terrain and surmised mission.

Claims13

Dependent claims

A method of 4D GIS based virtual reality for moving target prediction, comprising the steps of:

(a) recognizing a predetermined terrain and a plurality of predetermined targets;
(b) positioning and tracking said targets;
(c) estimating and reasoning a predetermined destination;
and
(d) predicting movement route and traiectory of said moving target,
wherein said step (a) further comprises steps of:
(a1) obtaining terrain and moving target image from a Moving Target Indication (MTI) sensor or an Unmanned Aerial Vehicle (UAV) camera;
(a2) extracting moving targets by subtraction from a sequence of measurements from said MTI sensor or said Unmanned Aerial Vehicle (UAV) camera;
(a3) recognizing said moving target using pattern recognition;
(a4) classifying terrain background through a statistical model based image classifier;
and
(a5) registering said classified terrain with a digital map from GIS through matching recognized culture (man-made) objects and natural objects.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/229,450Filed 22 Aug 2008 · us provisional application
Priority: 22 Aug 2007
Published: US 2009/0087029 A12 Apr 2009
Granted: 24 Jul 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G06T 7/277
Analysis of motion: involving stochastic approaches, e.g. using Kalman filters
G06V 10/255
Image preprocessing: detecting or recognising potential candidate objects based on visual cues, e.g. shapes
G06V 20/13
Terrestrial scenes: satellite images
G06V 20/647
Three-dimensional [3D] objects: by matching two-dimensional images to three-dimensional objects

Family

Application60/965,855Us provisional application · filed 22 Aug 2007
US 2009/0087029 A1Pre-grant publication · published 2 Apr 2009
US 8,229,163 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key