COHERENT CORRELATION ADDITION FOR INCREASING MATCH INFORMATION IN SCENE MATCHING NAVIGATION SYSTEMS
Assignee
JOHNS HOPKINS UNIVERSITY, THE, A CORP. OF MD
Filed
Jan 24, 1990
Granted
Sep 8, 1992
Location
COLUMBIA MD US
Abstract
A method and apparatus are described for image matching, particularly for increasing match information in scene matching navigation systems. The invention correlates a sequence of sensed images with a reference map and stores the resultant correlation surfaces. The correlation surfaces are then added so that match point correlations combine coherently by superposing the individual correlation surfaces using short term accurate navigation data. As a result, a composite correlation surface is formed in which the values at the peak (or antipeak) position add up and the effective match area is greatly increased. Both peaks and antipeaks are then detected to determine a match point and provide a navigation position update.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Apr 30, 1991
Rescinded
Dec 27, 1991
Duration
8 months
Inventor
- 1GEOFFREY B. IRANI
Record Details
- Patent number
- US 5146228
- Application
- 07469875
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
Browse by Assignee
JOHNS HOPKINS UNIVERSITY, THE, A CORP. OF MDMore from this assignee
Related by domain
AIRBORNE RADAR JAMMING SYSTEM
BOEING, COMPANY, THE
METHOD AND APPARATUS FOR THE DETECTION OF OBJECTS USING ELECTROMAGNETIC WAVE ATTENUATION PATTERNS
JG TECHNOLOGIES LLC
DUAL INFRARED BAND OBJECTIVE LENS
OPTICAL NIGHT VISION DEVICE WITH STANDARD LIGHT INTENSIFIER
THOMSON-CSF SEXTANT
MULTIPLE INFRARED MISSILE JAMMER
LOCKHEED SANDERS INC, A DELAWARE CORPORATION
BANDGAP RADIATION DETECTOR