Patent ID: 6710783
Filing Date: 2004-03-23
Classification: G06T

Abstract:
A presentation device comprising:a data memory for storing a volume dataset, representing a volume, comprising a plurality of volume data elements, each of said volume data elements having a volume position and a data value allocated thereto, said volume position designating a position in said volume of that volume data element; a computer connected to said data memory for generating a two-dimensional image of said volume, that is rotatable around a basic rotational axis and around an auxiliary axis, from said volume dataset, with said data elements having respective positions in said image determined by said volume position; a display connected to said computer for displaying said image; an input unit connected to said computer for prescribing at least one boundary surface to said computer which is used by said computer to divide said volume dataset into a selection dataset, defining a selection volume having a selection volume center of gravity, and a remaining dataset; and said computer using only volume data elements that are contained in said selection dataset for generating said two-dimensional image, and automatically determining said basic rotational axis and said auxiliary axis dependent on the volume positions of the volume data elements in the selection dataset, so that said auxiliary axis intersects said basic rotational axis and proceeds through said selection volume center of gravity.