MULTIPLE CHANNEL LOCATING
2 Assignments
0 Petitions
Accused Products
Abstract
Methods, systems, and apparatuses are provided for estimating a location on an object in a three-dimensional scene. Multiple radiation patterns are produced by spatially modulating each of multiple first radiations with a distinct combination of one or more modulating structures, each first radiation having at least one of a distinct radiation path, a distinct source, a distinct source spectrum, or a distinct source polarization with respect to the other first radiations. The location on the object is illuminated with a portion of each of two or more of the radiation patterns, the location producing multiple object radiations, each object radiation produced in response to one of the multiple radiation patterns. Multiple measured values are produced by detecting the object radiations from the location on the object due to each pattern separately using one or more detector elements. The location on the object is estimated based on the multiple measured values.
46 Citations
102 Claims
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1-77. -77. (canceled)
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78. A method for estimating coordinates of a location on an object in a 3D scene, the method comprising:
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producing one or more radiation patterns varying along at least two directions, wherein the one or more radiations patterns repeat along at least one direction from the at least two directions; calculating one or more illumination symbols based on the one or more radiation patterns; illuminating a region of the object with the one or more radiation patterns, wherein the region includes a plurality of locations that includes the location whose coordinates are to be estimated and wherein each illuminated location within the region produces one or more object radiations in response to the one or more radiation patterns; measuring at least a portion of the one or more object radiations using one or more detector elements to produce a plurality of measured values; calculating one or more detection symbols from the plurality of measured values; establishing a correspondence between at least one of the one or more detection symbols and at least one of the one or more illumination symbols; and estimating the coordinates of the location on the object based on the correspondence between the at least one of the one or more detection symbols and the at least one of the one or more illumination symbols. - View Dependent Claims (79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91)
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92. A system for estimating coordinates of a location on an object in a 3D scene, the system comprising:
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a pattern projector configured to produce one or more radiation patterns varying along at least two directions and repeating along at least one direction and configured to be oriented such that a region on the object encompassing the location whose coordinates are to be estimated is illuminated; a detector array configured to measure at least a portion of the object radiations produced by each illuminated location within the region in response to the one or more radiation patterns to produce a plurality of measured values; and one or more processors configured to; calculate a detection symbol from the plurality of measured values; estimate a correspondence between the detection symbol and an illumination symbol from one or more illumination symbols; and estimate the coordinates of the location on the object based on the correspondence. - View Dependent Claims (93, 94, 95, 96, 97, 98, 99, 100, 101, 102)
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Specification