Image data determination method, image processing workstation, target object determination device, imaging device, and computer program product

摘要

A second form of image data is determined from a first form of image data of an examination object in a radiological imaging system. A set of a defined plurality of input pixels in the image data of the first form is determined. In addition, a set of target form parameters of a target form model with a defined plurality of target form parameters is prognostically determined by way of a data-driven regression method from the plurality of input pixels. The number of target form parameters is smaller than the number of input pixels. The second form of image data is determined from the set of target form parameters. There is also described a method in radiological imaging for determining the geometric position of a number of target objects in a second form of image data and an image processing workstation for determining a second form of image data from a first form of image data as well as an imaging device.

主权项

1. A method in radiological imaging, the method comprising the following steps:
determining a geometric position of a number of target objects in a second form of image data from a geometric position of the target objects in a first form of image data of an area of the body of an examination object, by:
determining a set of a defined plurality of input pixels in the image data of the first form;prognostically determining a set of target form parameters of a target form model with a defined plurality of target form parameters by way of a data-driven regression method from the plurality of input pixels, wherein the plurality of target form parameters is smaller than the plurality of input pixels; anddetermining the second form of image data from the set of target form parameters; determining a number of interfaces of the area of the body in the first form of the image data and in the second form of the image data; determining a plurality of anatomical landmarks in the image data of the first form and in the image data of the second form; determining a geometric curve in the first form of the image data and in the second form of the image data, wherein each of the curves run at least approximately in the interface and through the plurality of anatomical landmarks; determining curve points in the geometric curves; determining a plurality of contours in the interface of the first form of the image data and in the interface of the second form of the image data; describing a geometric position of the target objects in the image data of the first form as a function of the contours of the first form of the image data; and determining the geometric position of the target objects in the image data of the second form as a function of the contours of the second form of the image data, by interpolating between contours of the first form of the image data and contours of the second form of the image data.