Invention Grant
- Patent Title: Dead reckoning system for vehicles
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Application No.: US14078881Application Date: 2013-11-13
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Publication No.: US09677897B2Publication Date: 2017-06-13
- Inventor: Tom Driscoll , Joseph R. Guerci , Russell J. Hannigan , Roderick A. Hyde , Muriel Y. Ishikawa , Jordin T. Kare , Nathan P. Myhrvold , David R. Smith , Clarence T. Tegreene , Yaroslav A. Urzhumov , Charles Whitmer , Lowell L. Wood, Jr. , Victoria Y. H. Wood
- Applicant: Elwha LLC
- Assignee: Elwha LLC
- Current Assignee: Elwha LLC
- Main IPC: G06T7/00
- IPC: G06T7/00 ; G01C21/36 ; H04N5/247 ; H04N5/33 ; H04N5/225

Abstract:
Described embodiments include a system and method. A system includes a first and second digital imaging devices. Each digital imaging device is configured to capture digital images of a surface traveled by a vehicle. A digital image correlator is configured to (i) correlate a first digital image of the surface captured by a first digital imaging device at a first time and a second digital image of the surface captured by a second digital imaging device at a subsequent second time, and (ii) determine a correlation vector. The first and second imaging devices are separated by a known distance. A kinematics circuit is configured to determine in response to the correlation vector an incremental translation and rotation of the vehicle. The system includes a navigation circuit configured to combine at least two instances of the incremental translation and rotation into data indicative of travel by the vehicle.
Public/Granted literature
- US20160223354A1 DEAD RECKONING SYSTEM FOR VEHICLES Public/Granted day:2016-08-04
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