Patent ID: 7262862
Filing Date: 2007-08-28
Classification: A61B

Abstract:
1. A method for measuring the 3D surface of an object, characterized in: a submerging of the object in a deformable and optically semi-transparent medium that is observable from a downward-facing surface thereof, so that a surface of the downward-facing surface of the object is also observable through said medium, a point by point depiction of the projection of said object through said medium at the downward-facing surface thereof, in an image plane of which each image point is referred to two orthogonal, particularly horizontal directions x and y but having the same vertical heights over a reference plane, a recording of the intensity and/or colour of the light being emitted from each point at the surface, passing the medium and falling on corresponding image points in said image plane, a co-ordination between results from the recording of the intensity and/or colour of said points and data for the medium and the image, an estimation of the height from said image plane up to each point of the surface and/or the estimation of the surface inclination in each of same points in relation to said image plane, based upon the result of the co-ordination and in order to determine the 3D form of the downward-facing surface of the object, and a processing for presentation and storing the obtained results.