Patent ID: 7298889

Claim:
A method of detecting and for high-resolution digitizing of the 3D shape of an object, by photogrammetry using a multitude of point markers on said object, comprising the steps of: applying at least two area markers on the surface of the object, each of said area markers having a surface with a characteristic optical configuration different from the other area markers; providing a plurality of said point markers in each area marker, whereby said characteristic optical configuration of said area markers forms a background for the point markers; taking a plurality of photogrammetric images of the object from respective different views; performing an image processing of the images, in which first the area markers in the images are automatically recognized by their respective characteristic optical configuration: then, the area markers respectively corresponding in the images are automatically associated with one another using their characteristic optical configuration, and for each set of associated area markers, automatically associating the point markers provided within each of said associated area markers and respectively corresponding in the images with one another determining the 2D coordinates for each of the associated point markers: and performing a photogrammetric evaluation process for determining the 3D shape of the object using the said 2D coordinates of the multitude of associated point markers.