CODED LOCALIZATION SYSTEMS, METHODS AND APPARATUS
First Claim
1. A navigation system for a repositionable object, comprising:
- a first optical motion unit having a first plurality of optical channels and configured to capture information from a first portion of a moving scene;
a second optical motion unit having a second plurality of optical channels and configured to capture information from a second portion of the moving scene, the second optical motion unit being displaced from the first optical motion unit by a first distance in a first direction; and
a processing subsystem configured to determine a two dimensional change in motion of the scene based upon data output from the first and second motion units and the first direction and distance.
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Accused Products
Abstract
A coded localization system includes a plurality of optical channels arranged to cooperatively distribute electromagnetic energy from at least one object onto a plurality of detectors. Each of the channels includes a localization code that is different from any other localization code in other channels, to modify electromagnetic energy passing therethrough. Digital outputs from the detectors are processable to determine sub-pixel localization of the object onto the detectors, such that a location of the object is determined more accurately than by detector geometry alone. Another coded localization system includes a plurality of optical channels arranged to cooperatively distribute a partially polarized signal onto a plurality of pixels. Each of the channels includes a polarization code that is different from any other polarization code in other channels to uniquely polarize electromagnetic energy passing therethrough. Digital outputs from the detectors are processable to determine a polarization pattern.
13 Citations
10 Claims
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1. A navigation system for a repositionable object, comprising:
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a first optical motion unit having a first plurality of optical channels and configured to capture information from a first portion of a moving scene; a second optical motion unit having a second plurality of optical channels and configured to capture information from a second portion of the moving scene, the second optical motion unit being displaced from the first optical motion unit by a first distance in a first direction; and a processing subsystem configured to determine a two dimensional change in motion of the scene based upon data output from the first and second motion units and the first direction and distance. - View Dependent Claims (2, 3, 4)
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5. A method for controlling motion of a repositionable object, comprising:
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determining a present heading of the repositionable object by cooperatively imaging the repositionable object onto detectors of a plurality of optical channels each having a localization code between its detector and the repositionable object, each localization code (a) being one of an amplitude mask, a phase mask, an aperture pattern, and a polarizer, and (b) differing from the respective localization code of each other of the plurality of optical channels; determining a current location of the repositionable object using a satellite navigation system; determining a desired heading for the repositionable object by comparing the current location of the repositionable object with a desired destination; and adjusting the heading of the repositionable object from the present heading to the desired heading. - View Dependent Claims (6, 7)
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8. A navigation system for a repositionable object, comprising:
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a plurality of optical channels arranged to cooperatively capture information from the repositionable object, each of the optical channels having (i) a detector and (ii) a localization code located between the detector and the repositionable object and configured to optically modify electromagnetic energy passing therethrough, the localization code being one of an amplitude mask, a phase mask, an aperture pattern, and a polarizer, and differing from the localization code of each other of the plurality of optical channels; a receiver configured to communicate with a satellite navigation system; and a digital signal processor configured to; determine a present heading of the repositionable object from the information captured by the plurality of optical channels; determine a current location of the repositionable object using the receiver; and determine a desired heading for the repositionable object by comparing the current location of the repositionable object with a desired destination. - View Dependent Claims (9, 10)
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Specification