Spatial dimension determination device for determining a spatial dimension of a target element in an object

摘要

The invention relates to a spatial dimensioning device for determining the spatial dimension of a target element, such as a blood vessel in a subject 9, for example a person. The movement parameters describing the movement of the insertion element 4 moved by the movement unit 2 such as a robot, and a plurality of images showing the insertion element are used to determine the dimensional relationship between the image dimensions and the actual dimensions. used. Another image showing the target element is provided, and an actual dimension of the target element is determined based on an image dimension of the target element in the other image and based on the determined dimensional relationship. The unknown actual physical dimensions of the target element in the object can therefore be determined accurately from the image of the target element, in particular by using the movement parameters.