Method for detecting and representing one or more objects, for example teeth
AssigneeSirona Dental Systems GmbH
InventorsJoachim Pfeiffer, Volker Wedler, Ulrich Orth, Reinhard Pieper
Life of this patent
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Abstract
A method for detecting and representing one or more objects, such as teeth, their preparations and their immediate environment, using a camera. A first recording is made wherein a still image is produced. The still image is blended into a current, mobile search image in at least one sub-area in the second step, so that both images are recognizable. In the third step, the camera is positioned in such a way that the search image overlaps the blended-in still image in at least one sub-area. The second recording process is initiated in a fourth step.
Claims12
A method for detecting and representing one or more objects using a camera, said method comprising the steps of:
- creating a first recording;
- producing a still image;
- inserting the still image into a current, moving search image in at least one sub-area, so that both images are recognizable;
- positioning the camera in such a way that the search image attains congruence with the inserted still image in said at least one sub-area;
- and
- initiating a second recording,
- wherein the recordings yield a three-dimensional data record containing depth values, the first and second recordings are correlated with one another computationally using the depth values of a common area, the still image is displaced and rotated by at least one of a predetermined distance and a predetermined angle, and is superposed on the moving search image only in said at least one sub-area, and the first and second recordings are displaced and rotated by at least 1/10 of the extent of the recording in one direction relative to one another.
Dependencies are inferred from the claim text.