Koninklijke Philips Corporation N.v.

Robert Hendrikus Petrus Bertrams

Gerardus Henricus Maria Gijsbers

The present invention relates to an apparatus for determining a position of a first object () within a second object (), wherein the first object () contacts the second object () at a contact region. The apparatus () comprises a provision unit () for providing a three-dimensional model () of the second object (). A projection unit () generates a two-dimensional projection image () of the first object () and of the second object (), and a registration unit () registers the three-dimensional model () with the two-dimensional projection image (). A determination unit () determines the position of the contact region from the position of the first object () on the two-dimensional projection image () and the registered three-dimensional model () of the second object (), wherein the position of the contact region is the position of the first object () within the second object ().

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Eindhoven, Netherlands

Robert Hendrikus Petrus Bertrams