Abstract: The present invention relates to a method and a system for providing an augmentation (12) of a user's visual perception of the real world, that includes a display (13, 14, 15) of two-dimensional images in conjunction with three-dimensional virtual objects (17), which are displayed with respect to each other in a clear and easily understandable manner.

Abstract: Disclosed is a computer-implemented method of registering a digital model of an anatomical body part corresponding to a patient body part. The method encompasses input, to an augmented reality viewing device, of data defining a digital model of an anatomical body part. The model comprises at least one vertex which corresponds to a specific part of the anatomical body part. The specific part is, for example, a landmark easily identifiable for a user, such as a specific vertebra which may be found by palpation. Based on a known orientation of the augmented reality viewing device relative to the anatomical body part, visual information is displayed on a viewing unit of the augmented reality viewing device. The visual information indicates the position of the vertex as an overlay on the position of the specific part of the anatomical body part in the field of view of the augmented reality viewing device.

Abstract: The present invention relates to a method and a system for providing an augmentation (12) of a user's visual perception of the real world, that includes a display (13, 14, 15) of two-dimensional images in conjunction with three-dimensional virtual objects (17), which are displayed with respect to each other in a clear and easily understandable manner.

Abstract: The present invention relates to a method for determining the spatial position of objects, in particular medical objects. First position data is acquired that describes a spatial position of an object in a first coordinate system. First transformation data is acquired that transforms the object's position from the first coordinate system to a second coordinate system. Based on the foregoing data, second position data is acquired that specifies the spatial position of the object in the second coordinate system. Second transformation data is acquired that transforms the object's position from the second coordinate system to an inertial coordinate system. Based on the second position data and the second transformation data, inertial position data is determined that specifies a position of the object in the inertial coordinate system.

Abstract: The present invention relates to a method and a system for providing an augmentation (12) of a user's visual perception of the real world, that includes a display (13, 14, 15) of two-dimensional images in conjunction with three-dimensional virtual objects (17), which are displayed with respect to each other in a clear and easily understandable manner.

Abstract: Disclosed is a computer-implemented method of registering a digital model of an anatomical body part corresponding to a patient body part. The method encompasses input, to an augmented reality viewing device, of data defining a digital model of an anatomical body part, for example of the spine. The model comprises at least one vertex which corresponds to a specific part of the anatomical body part. The specific part is for example a landmark which is easily identifiable for a user, such a specific vertebra which may be found by palpation. Based on a known orientation of the augmented reality viewing device relative to the anatomical body part, visual information is displayed on a viewing unit of the augmented reality viewing device. The visual information indicates the position of the vertex as an overlay on the position of the specific part of the anatomical body part in the field of view of the augmented reality viewing device.

Abstract: The invention relates to a tracking reference, comprising: a reference array (1) featuring a positionally fixed arrangement of at least two tracking markers (3); and an interface (4A) for detachably coupling the reference array (1) to a base member (2), wherein the interface (4A) comprises at least one supporting surface (5) for contacting the base member (2), wherein the interface (4A) comprises magnetic means (6) which generate a force at the reference array, wherein the force (F) is directed away from the supporting surface (5).

Abstract: The present invention relates to a computer-implemented medical method, a computer program and a system for determining a reconstructed image augmentation of a field of view provided by an augmented reality device (3), wherein an image location and/or at least one image orientation of at least one two-dimensional reconstructed image (9, 10 10) within the field view depends on the spatial position of at least one object (8, 11, 12).

Abstract: A computer-implemented medical method of determining the position of an anatomical region of interest of a patient's body is provided. The method includes acquiring finger model data, acquiring finger position data based on the finger model data and based on imaging the at least one finger, acquiring planning image data that describes a planning external surface of the anatomical region of interest, and determining anatomical region position data based on the finger position data and the planning image data, wherein the finger model data describes a user-specific model of the pose which is acquired by imaging the at least one finger when it attains the pose.

Abstract: The present invention relates to a method for determining the spatial position of objects, in particular objects, comprising the steps of: —acquiring first position data which comprise first position information describing the spatial position of an object (2) within a first co-ordinate system (A); —acquiring first transformation data which comprise first transformation information describing a transformation of the object's position from the first co-ordinate system (A) into a second co-ordinate system (B); —acquiring, on the basis of the first position data and the first transformation data, second position data which comprise second position information describing the spatial position of the object (2) within the second co-ordinate system (B); —acquiring second transformation data which comprise second transformation information describing a transformation of the object's position from the second co-ordinate system (B) into an inertial co-ordinate system (I); —determining, on the basis of the second positi

Abstract: The present invention relates to a computer-implemented medical method, a computer program and a system for determining a reconstructed image augmentation of a field of view provided by an augmented reality device (3), wherein an image location and/or at least one image orientation of at least one two-dimensional reconstructed image (9, 10 10) within the field view depends on the spatial position of at least one object (8, 11, 12).

Abstract: A data processing method for determining a range of motion of an artificial knee joint which connects a femur and a tibia via a medial ligament and a lateral ligament, wherein at least the femur comprises an implant which forms a medial condyle and a lateral condyle, the method comprising the steps of: acquiring the maximum lengths of the lateral ligament and the medial ligament: for a particular flexion angle of the knee joint; calculating a first virtual position between the femur and the tibia in which the lateral condyle of the femoral implant touches the tibia and the medial ligament is stretched to its maximum length; calculating a maximum valgus angle of the range of motion from the first virtual position; calculating a second virtual position between the femur and the tibia in which the medial condyle of the femoral implant touches the tibia and the lateral ligament is stretched to its maximum length; and calculating a maximum yarns angle of the range, of motion from the second virtual position.

Abstract: A data processing method for determining a range of motion of an artificial knee joint which connects a femur and a tibia via a medial ligament and a lateral ligament, wherein at least the femur comprises an implant which forms a medial condyle and a lateral condyle, the method comprising the steps of: acquiring the maximum lengths of the lateral ligament and the medial ligament for a particular flexion angle of the knee joint; calculating a first virtual position between the femur and the tibia in which the lateral condyle of the femoral implant touches the tibia and the medial ligament is stretched to its maximum length; calculating a maximum valgus angle of the range of motion from the first virtual position; calculating a second virtual position between the femur and the tibia in which the medial condyle of the femoral implant touches the tibia and the lateral ligament is stretched to its maximum length; and calculating a maximum varus angle of the range of motion from the second virtual position.

Abstract: A data processing method for determining a range of motion of an artificial knee joint which connects a femur and a tibia via a medial ligament and a lateral ligament, wherein at least the femur comprises an implant which forms a medial condyle and a lateral condyle, the method comprising the steps of: acquiring the maximum lengths of the lateral ligament and the medial ligament for a particular flexion angle of the knee joint; calculating a first virtual position between the femur and the tibia in which the lateral condyle of the femoral implant touches the tibia and the medial ligament is stretched to its maximum length; calculating a maximum valgus angle of the range of motion from the first virtual position; calculating a second virtual position between the femur and the tibia in which the medial condyle of the femoral implant touches the tibia and the lateral ligament is stretched to its maximum length; and calculating a maximum yarns angle of the range of motion from the second virtual position.

Abstract: A data processing method for determining a range of motion of an artificial knee joint which connects a femur and a tibia via a medial ligament and a lateral ligament, wherein at least the femur comprises an implant which forms a medial condyle and a lateral condyle, the method comprising the steps of: acquiring the maximum lengths of the lateral ligament and the medial ligament for a particular flexion angle of the knee joint; calculating a first virtual position between the femur and the tibia in which the lateral condyle of the femoral implant touches the tibia and the medial ligament is stretched to its maximum length; calculating a maximum valgus angle of the range of motion from the first virtual position; calculating a second virtual position between the femur and the tibia in which the medial condyle of the femoral implant touches the tibia and the lateral ligament is stretched to its maximum length; and calculating a maximum varus angle of the range of motion from the second virtual position.

Abstract: A data processing method for determining a range of motion of an artificial knee joint which connects a femur and a tibia via a medial ligament and a lateral ligament, wherein at least the femur comprises an implant which forms a medial condyle and a lateral condyle, the method comprising the steps of: acquiring the maximum lengths of the lateral ligament and the medial ligament: for a particular flexion angle of the knee joint; calculating a first virtual position between the femur and the tibia in which the lateral condyle of the femoral implant touches the tibia and the medial ligament is stretched to its maximum length; calculating a maximum valgus angle of the range of motion from the first virtual position; calculating a second virtual position between the femur and the tibia in which the medial condyle of the femoral implant touches the tibia and the lateral ligament is stretched to its maximum length; and calculating a maximum yarns angle of the range, of motion from the second virtual position.