Abstract: A controller is provided for maneuvering an interrogation plane relative to a reference surface. The interrogation plane intersects the reference surface and is associated with a pole about which the interrogation plane is rotatable. The pole has an adjustable angle of inclination relative to the reference surface. The controller has a base, a handle, and an arm extending from a connection with the base to a connection with the handle. The arm has hingable joints which hinge to allow the handle to be translated relative to the base in arbitrary directions across a user surface. The controller further has position sensors which measure the translation of the handle relative to the base on the user surface. The translation provides a corresponding translation of the interrogation plane relative to the reference surface. The handle is rotatable about a rotation axis and is tillable about a tilt axis to allow the handle to be angularly moved relative to the user surface.

Abstract: Disclosed is a computer implemented method of interrogating volumetric data, the method including the steps of: defining a reference surface relative to the volumetric data; providing an interrogation window lying in a movable interrogation plane intersecting the reference surface and the interrogation window intersecting the volumetric data, said interrogation plane having a pole lying in it about which pole said interrogation plane is rotatable, wherein movement of the interrogation plane provides a corresponding movement of the interrogation window; for each movement of the interrogation plane, determining the point of intersection of said pole and said reference surface, determining the relative angle of rotation of said interrogation plane about said pole and determining the angle of inclination of said pole to said reference surface; and on the basis of said determinations, providing a sectional image through the volumetric data corresponding to the position of the interrogation window within the volume

Abstract: A controller is provided for manoeuvring an interrogation plane relative to a reference surface. The interrogation plane intersects the reference surface and is associated with a pole about which the interrogation plane is rotatable. The pole has an adjustable angle of inclination relative to the reference surface. The controller has a base, a handle, and an arm extending from a connection with the base to a connection with the handle. The arm has hingeable joints which hinge to allow the handle to be translated relative to the base in arbitrary directions across a user surface. The controller further has position sensors which measure the translation of the handle relative to the base on the user surface. The translation provides a corresponding translation of the interrogation plane relative to the reference surface. The handle is rotatable about a rotation axis and is tillable about a tilt axis to allow the handle to be angularly moved relative to the user surface.

Abstract: Disclosed is a computer implemented method of interrogating volumetric data, the method including the steps of: defining a reference surface relative to the volumetric data; providing an interrogation window lying in a movable interrogation plane intersecting the reference surface and the interrogation window intersecting the volumetric data, said interrogation plane having a pole lying in it about which pole said interrogation plane is rotatable, wherein movement of the interrogation plane provides a corresponding movement of the interrogation window; for each movement of the interrogation plane, determining the point of intersection of said pole and said reference surface, determining the relative angle of rotation of said interrogation plane about said pole and determining the angle of inclination of said pole to said reference surface; and on the basis of said determinations, providing a sectional image through the volumetric data corresponding to the position of the interrogation window within the volume