3-dimension scanning system for computer-aided tooth modelling and method thereof
AssigneeKci Limited
InventorKang Park
Life of this patent
Estimating the term…
Abstract
Disclosed is a 3-dimension(3D) scanning system for a computer-aided tooth modeling capable of extracting a configuration of a tooth into a 3D configuration data in a short time. The 3D scanning system includes an image detecting part for extracting an image data of a tooth plaster model, a moving part for changing a location and a position of the tooth plaster model measured by the image detecting part, and a control part for changing and controlling the location and the position of the tooth plaster model by controlling the moving part to measure the tooth plaster model using the image detecting part.
Claims6
A 3-dimension scanning system for a computer-aided tooth modeling, the scanning system comprising:
- image detecting means for extracting an image data of a tooth plaster model;
- moving means for changing a location and a position of the tooth plaster model measured by the image detecting means;
- and
- control means for changing and controlling the location and the position of the tooth plaster model by controlling the moving means to measure the tooth plaster model using the image detecting means.
A 3-dimension scanning method for a computer-aided tooth modeling, the scanning method comprising the steps of:
- (a) installing a tooth model on a base having at least 3-axis rotational degree of freedom, determining an order of scanning a surface of the tooth model and simulating a position where a cross section of a laser emitted onto the surface is minimized;
- (b) emitting the laser to the tooth model, scanning and obtaining an image of a laser line;
- (c) converting the laser line image into a gray level image and binarizing the same;
- (d) finding a center line of the laser line and obtaining a coordinate of the center line;
- (e) calculating a 3-dimension coordinate by using the coordinate of the center line and a location of the base;
- (f) changing a position of the tooth model by varying the location of the base;
- and
- (g) obtaining a 3-dimension coordinate relative to an overall surface of the tooth model by repeating the above steps from (b) to (f).
Dependencies are inferred from the claim text.