System and method for three-dimensional data acquisition
First Claim
1. A system for capturing stereoscopic images and related data in a format that facilitates interpretation of the images and data by a human viewer or processing by a computer or other electronic processing device, comprising:
- a first projector arranged to project a first two-dimensional pattern onto a three-dimensional subject, wherein a frequency of light forming said first two-dimensional pattern is different than a frequency of light illuminating said subject;
a receiver arranged to optically separate an image of said first two-dimensional pattern from an image of said three-dimensional subject based on said different frequencies of said light forming said first two-dimensional pattern and said light illuminating said subject.
2 Assignments
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Accused Products
Abstract
At least one two-dimensional grid is projected onto a three-dimensional subject in order to determine or represent contours of the subject based on distortion of the grid. Each grid has a wavelength or range of wavelengths that is different than those of every other grid, and different than a wavelength or range of wavelengths of light used to illuminate the subject, permitting optical separation of the grids during capture of the image of the subject. Range finding and/or scaling may be accomplished by alignment of multiple grids, or by using a ladar (laser radar) or similar range finder to determine the distance to a predetermined point or feature on at least one of the grids.
83 Citations
27 Claims
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1. A system for capturing stereoscopic images and related data in a format that facilitates interpretation of the images and data by a human viewer or processing by a computer or other electronic processing device, comprising:
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a first projector arranged to project a first two-dimensional pattern onto a three-dimensional subject, wherein a frequency of light forming said first two-dimensional pattern is different than a frequency of light illuminating said subject;
a receiver arranged to optically separate an image of said first two-dimensional pattern from an image of said three-dimensional subject based on said different frequencies of said light forming said first two-dimensional pattern and said light illuminating said subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An airline security system, comprising:
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first and second projectors arranged to project a pair of infrared grids onto a person within an airport or airplane;
at least one receiver arranged to separate said images of infrared grids from a visible light image of said person, and to separate said images of said infrared grids from each other for separate processing.
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17. A tracking, target acquisition, or guidance system, comprising:
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first and second projectors arranged to project a pair of two-dimensional grids onto a moving object and to move in order to track the object;
at least one receiver arranged to separate images of said grids from an image of said object based on different wavelengths of light illuminating said object and light forming said grids. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A method for capturing stereoscopic images and related data in a format that facilitates interpretation of the images and data by a human viewer or processing by a computer or other electronic processing device, comprising the steps of:
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projecting a first two-dimensional pattern onto a three-dimensional subject, wherein a frequency of light forming said first two-dimensional pattern is different than a frequency of light illuminating said subject;
optically separating an image of said first two-dimensional pattern from an image of said three-dimensional subject based on said different frequencies of said light forming said first two-dimensional pattern and said light illuminating said subject. - View Dependent Claims (24, 25, 26, 27)
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Specification