OBJECT POSITIONING WITH VISUAL FEEDBACK
First Claim
1. A positioning system comprising:
- a pattern projector configured to project a 2- or 3-dimensional pattern onto a surface of an object positioned on a couch;
a detector responsive to said projected 2- or 3-dimensional pattern and configured to generate a detection signal representative of a detected 2- or 3-dimensional pattern on said surface of said object;
a pattern analyzing circuit connected to said detector and configured to generate a surface representation of at least a portion of said surface of said object based on said detection signal;
a memory configured to store a reference surface representation of at least a portion of said surface of said object;
a correction analyzing circuit configured to generate a correction signal representative of a discrepancy in at least one of position and posture of said surface representation relative said reference surface representation; and
a light projector connected to said correction analyzing circuit and configured to project information representing said discrepancy in at least one of position and posture onto said object or a surface of said couch.
1 Assignment
0 Petitions
Accused Products
Abstract
A positioning system comprises a pattern projector (70) for projecting a 2D/3D pattern (45) onto an object surface. The 2D/3D pattern (45) is detected by a detector (80, 85), which generates a detection signal that is employed by a pattern analyzing circuit (110) for generating a surface representation of the object surface. A correction analyzing circuit (130) generates a correction signal representative of a discrepancy in position and/or posture of the surface representation relative a stored reference surface representation. The correction signal is employed to generate information (55, 56) that is projected by a light projector (70, 75) onto the object surface. The projected information (55, 56) is indicative of the determined discrepancy in object position and/or posture.
61 Citations
25 Claims
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1. A positioning system comprising:
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a pattern projector configured to project a 2- or 3-dimensional pattern onto a surface of an object positioned on a couch; a detector responsive to said projected 2- or 3-dimensional pattern and configured to generate a detection signal representative of a detected 2- or 3-dimensional pattern on said surface of said object; a pattern analyzing circuit connected to said detector and configured to generate a surface representation of at least a portion of said surface of said object based on said detection signal; a memory configured to store a reference surface representation of at least a portion of said surface of said object; a correction analyzing circuit configured to generate a correction signal representative of a discrepancy in at least one of position and posture of said surface representation relative said reference surface representation; and a light projector connected to said correction analyzing circuit and configured to project information representing said discrepancy in at least one of position and posture onto said object or a surface of said couch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An object positioning method comprising:
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projecting a 2- or 3-dimensional pattern onto a surface of an object positioned on a couch; generating a detection signal representative of a detected 2- or 3-dimensional pattern on said surface of said object; generating a surface representation of at least a portion of said surface of said object based on said detection signal; generating a correction signal representative of a discrepancy in at least one of position and posture of said surface representation relative a reference surface representation of at least a portion of said surface of said object stored in a memory; and projecting information representing said discrepancy in at least one of position and posture onto said object or a surface of said couch. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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Specification