Back to results
US 8,427,656 B2Granted
Robust three-dimensional shape acquisition method and system
AssigneeMax-Planck-Gesellschaft zur Föderung der Wissenschaften e.V.
InventorsMatthias Hullin, Martin Fuchs, Ivo Ihrke, Hendrik Lensch, Hans-Peter Seidel
Life of this patent
Estimating the term…
Abstract
A system (100) for scanning a three-dimensional object (150) comprises a device for illuminating a plane (110); an imaging sensor (120); and a transparent container (130) for immersing the object (150) in a participating medium (140).
Claims16
A method for determining a location of a surface point of a structure or body, comprising the steps of:
- placing the structure/body in a fluorescent participating medium;
- projecting a laser beam through the participating medium onto the structure/body;
- taking an image of a trace of the laser beam in the participating medium using an imaging sensor;
- and
- determining the location of the surface point, based on a drop of intensity in the trace of the laser beam.
2 more elements
A method for determining a location of a surface point of an object, the method comprising:
- (a) providing a transparent container containing a fluorescent participating medium;
- (b) placing the object in the fluorescent participating medium;
- (c) using a laser projector, projecting a laser beam through the participating medium onto the object;
- (d) using an imaging sensor, taking an image of a trace of the laser beam in the participating medium, wherein the imaging sensor is positioned such that an optical axis of the imaging sensor is approximately aligned with a normal of a bounding plane of the transparent container;
- and
- (e) determining the location of the surface point, based on a drop of intensity in the trace of the laser beam, wherein the drop of intensity is used for triangulating the location of the surface point, based on the image taken by the imaging sensor and the laser beam.
3 more elements
Dependencies are inferred from the claim text.