Multi-projector geometric calibration
First Claim
1. A method of multi-projector correspondence mapping, comprising:
- projecting onto a scene a first sequence of patterns of light symbols that spatio-temporally encode two-dimensional position information in a first projection plane;
projecting onto the scene a second sequence of patterns of light symbols that spatio-temporally encode two-dimensional position information in a second projection plane;
capturing at a capture plane light patterns corresponding to the first and second sequences of patterns of light symbols reflected from the scene;
determining captured light symbol sequence codes from the captured light patterns; and
generating a correspondence mapping of the first projector plane and the second projector plane with respect to a reference coordinate system based at least in part on correspondence between the captured light symbol sequence codes and the first and second sequences of light symbol patterns.
1 Assignment
0 Petitions
Accused Products
Abstract
In one aspect, a first sequence of patterns of light symbols that spatio-temporally encode two-dimensional position information in a first projection plane is projected onto a scene. A second sequence of patterns of light symbols that spatio-temporally encode two-dimensional position information in a second projection plane is projected onto the scene. Light patterns corresponding to the first and second sequences of patterns of light symbols reflected from the scene are captured at a capture plane. Captured light symbol sequence codes are determined from the captured light patterns. A correspondence mapping of the first projector plane and the second projector plane with respect to a reference coordinate system is generated based at least in part on correspondence between the captured light symbol sequence codes and the first and second sequences of light symbol patterns.
53 Citations
26 Claims
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1. A method of multi-projector correspondence mapping, comprising:
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projecting onto a scene a first sequence of patterns of light symbols that spatio-temporally encode two-dimensional position information in a first projection plane;
projecting onto the scene a second sequence of patterns of light symbols that spatio-temporally encode two-dimensional position information in a second projection plane;
capturing at a capture plane light patterns corresponding to the first and second sequences of patterns of light symbols reflected from the scene;
determining captured light symbol sequence codes from the captured light patterns; and
generating a correspondence mapping of the first projector plane and the second projector plane with respect to a reference coordinate system based at least in part on correspondence between the captured light symbol sequence codes and the first and second sequences of light symbol patterns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 20)
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15. A machine-readable medium storing machine-readable instructions for causing a machine to perform operations comprising:
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projecting onto a scene a first sequence of patterns of light symbols that spatio-temporally encode two-dimensional position information in a first projection plane;
projecting onto the scene a second sequence of patterns of light symbols that spatio-temporally encode two-dimensional position information in a second projection plane;
capturing at a capture plane light patterns corresponding to the first and second sequences of patterns of light symbols reflected from the scene;
determining captured light symbol sequence codes from the captured light patterns; and
generating a correspondence mapping of the first projector plane and the second projector plane with respect to a reference coordinate system based at least in part on correspondence between the captured light symbol sequence codes and the first and second sequences of light symbol patterns. - View Dependent Claims (16, 17, 18, 19)
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21. A multi-projector system, comprising:
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a first projector;
a second projector;
an imaging device; and
a processing system operable to control the first projector to project onto a scene a first sequence of patterns of light symbols that spatio-temporally encode two-dimensional position information in a first projection plane, control the second projector to project onto the scene a second sequence of patterns of light symbols that spatio-temporally encode two-dimensional position information in a second projection plane, control the imaging device to capture at a capture plane light patterns corresponding to the first and second sequences of patterns of light symbols reflected from the scene, determine captured light symbol sequence codes from the captured light patterns, and generate a correspondence mapping of the first projector plane and the second projector plane with respect to a reference coordinate system based at least in part on correspondence between the captured light symbol sequence codes and the first and second sequences of light symbol patterns. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification