Automatic certification, identification and tracking of remote objects in relative motion
First Claim
1. A method for determining information relating to an object in relative motion to a given point, comprising the steps of:
- generating a beam of radiation at said given point;
providing said object with spatially coded information;
directing said beam of radiation at said object;
scanning said spatially coded information by means of the relative motion of the object and the beam such that said spatially coded information is converted into temporally coded information;
imaging a beam of radiation retro-reflected from said object to said given point; and
determining said temporally coded information from at least one image generated in said imaging step.
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Accused Products
Abstract
A method and apparatus for automatic certification, identification and tracking of remote objects in relative motion to a reading system, utilizing a novel tag affixed to an object and novel apparatus and techniques for automatically reading the tag information, its relative velocity, angle and position. The tag reader comprises an imaging system that undertakes real time image processing of the acquired images. Matching of the optical parameters of the imaging optics at the reader and the focusing optics at the tag ensure optical reliability and readability at large ranges. Novel types of tag designs are presented.
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Citations
70 Claims
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1. A method for determining information relating to an object in relative motion to a given point, comprising the steps of:
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generating a beam of radiation at said given point;
providing said object with spatially coded information;
directing said beam of radiation at said object;
scanning said spatially coded information by means of the relative motion of the object and the beam such that said spatially coded information is converted into temporally coded information;
imaging a beam of radiation retro-reflected from said object to said given point; and
determining said temporally coded information from at least one image generated in said imaging step. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A system for determining spatially coded information relating to an object in relative motion to a given point, comprising:
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a source producing a beam of radiation at said given point;
at least one optical element adapted to image part of said beam of radiation onto said spatially coded information, and to collect part of said beam reflected from said spatially coded information;
an imaging element adapted to generate an image of said collected part of said beam reflected from said spatially coded information; and
an image processor determining said temporally coded information from said image generated by said imaging element. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
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Specification