Method and apparatus for three-dimensional optical scanning of interior surfaces
First Claim
Patent Images
1. A scanner for three-dimensional scanning of interior surfaces to determine a shape thereof comprising:
- at least one light source adapted to create and project structured light producing a pattern on the interior surface of an object;
at least one camera adapted to record 2-D images of the pattern;
a data processor adapted to convert information from said 2-D images into 3-D real world coordinates corresponding with a shape of said interior surface;
at least one position sensor having an emitter part and a receiver part, one of said emitter and receiver parts being provided on the scanner and the other of said emitter and receiver parts being provided on the object to be scanned, said position sensor being adapted to provide the relative position and orientation of the scanner relative to said surface being scanned to enable combining of the individual scans when the scanner and the object are moved relative to one another during successive scans;
the point of emission of light as well as the point of accumulation of reflected light for the camera being located on a probe having an axis;
the at least one light source and the at least one camera being adapted to perform a scan 360°
around the axis without rotation of said probe; and
the probe being adapted to be entered into a cavity.
1 Assignment
0 Petitions
Accused Products
Abstract
A scanner for three-dimensional scanning of interior surfaces or cavities of limited dimensions or with restricted accessibility. The scanner includes a probe having an axis and at least one light source and one camera adapted to perform a scan 360° around the axis of the probe. High precision three-dimensional replicas of real objects may be created using 3-D scan data obtainable with the scanner.
-
Citations
42 Claims
-
1. A scanner for three-dimensional scanning of interior surfaces to determine a shape thereof comprising:
-
at least one light source adapted to create and project structured light producing a pattern on the interior surface of an object; at least one camera adapted to record 2-D images of the pattern; a data processor adapted to convert information from said 2-D images into 3-D real world coordinates corresponding with a shape of said interior surface; at least one position sensor having an emitter part and a receiver part, one of said emitter and receiver parts being provided on the scanner and the other of said emitter and receiver parts being provided on the object to be scanned, said position sensor being adapted to provide the relative position and orientation of the scanner relative to said surface being scanned to enable combining of the individual scans when the scanner and the object are moved relative to one another during successive scans; the point of emission of light as well as the point of accumulation of reflected light for the camera being located on a probe having an axis; the at least one light source and the at least one camera being adapted to perform a scan 360°
around the axis without rotation of said probe; andthe probe being adapted to be entered into a cavity. - 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. A method for scanning interior surfaces to determine a shape thereof comprising the steps of;
-
i) entering a probe shaped scanner having an axis into a cavity; ii) creating and projecting structured light from a first point on the probe producing a pattern on an interior surface of an object and, at a second point of the probe, recording 2D images of the pattern reflected from the interior surface to perform a scan 360°
around the axis of the probe without rotation of said probe;iii) determining 2D coordinates of the 2D images of the pattern; iv) determining the relative position and orientation of the scanner relative to said surface being scanned for enabling combining of the individual scans when the scanner and the object are moved relative to one another during successive scans with at least one position sensor having a receiver part and an emitter part, one of said receiver and emitter parts being provided on the scanner and the other of said receiver and emitter parts being provided on the object to be scanned; and v) converting a series of said 2D images into 3D real world coordinates of the interior surface corresponding with the shape thereof. - View Dependent Claims (33, 34, 35, 36)
-
-
37. A method for 3D modelling and production including obtaining 3D real world coordinates of an interior surface of a cavity to determine a shape thereof comprising the steps of:
-
i) entering a probe shaped scanner having an axis into a cavity; ii) creating and projecting structured light from a first point on the probe producing a pattern on an interior surface of an object and, at a second point of the probe, recording 2D images of the pattern reflected from the interior surface to perform a plurality of successive scans 360°
around the axis of the probe without rotation of said probe;iii) determining 2D coordinates of the images of the pattern; iv) determining the relative position and orientation of the scanner relative to said surface during said plurality of successive scans with at least one position sensor having a receiver part and an emitter part, one of said receiver and emitter parts being provided on the scanner and the other of said receiver and emitter parts being provided on the object to be scanned; v) converting a series of said 2D images into a plurality of 3D real world coordinates of the interior surface; vi) combining said plurality of 3D coordinates from images taken during said successive scans with respect to relative position of said scans as determined by said position sensor to create a 3D model corresponding with the shape of said cavity; and vii) creating a piece adapted to fit into the cavity. - View Dependent Claims (38, 39, 40, 41, 42)
-
Specification