Abstract: The invention relates to a method for processing an image comprising the steps of: assigning a value of a positioning error to a detail in the image; visualizing said value of the positioning error; enabling an interactive adjustment of said value; storing the value of the positioning error with reference to the position of the detail. At step 1a of the method the image 1 two details 2a and 2b are identified. The details are positioned so that to coincide with an exterior of a femoral bone 3, whereby ach detail is assigned a value of a positioning error, which is visualized to the user, for example by means of suitable ellipses 4a and 4b. The respective values of the positioning error may be introduced manually by the user using suitable input means. Alternatively, it is possible that the value of the positioning error is assigned to the detail based on a parameter indicative of the image quality.

Abstract: A method for determining a pose of an implant object that is located inside a human or animal body uses a CAD model of that implant through a reconstruction X-Ray procedure that encompasses a translation-reconstruction run of the X-Ray arrangement viz ô viz the implant object. In particular, the method being comprises for an implant object that has a degree of symmetry according to an n-dimensional structure of symmetry the following.

Abstract: A medical examination apparatus including an imaging means (2,3), a viewing system (4), wherein image data processing means (5) is arranged to facilitate production of different images of a feature of interest such that the pose of the feature is comparable in the different images. The image data processing means (5) estimates the pose of the anatomical feature in a first image generated by the imaging means, produces imaging means control data indicative of the desired imaging geometry for controlling one or more parameters of the imaging means (2,3) for producing a further image having the feature of interest in the estimated pose, and outputs the produced imaging means control data. The output control data may be output in a viewable form and/or output directly to the imaging means (2,3) so as automatically to control the parameters thereof. The output control data can also control the imaging means so as to produce an image having desired intensity characteristics.

Abstract: A medical viewing system including an imaging means (2,3) and image data processing means (5) is arranged to facilitate production of different images of a feature of interest such that the pose of the feature of interest is comparable in the different images. The image data processing means (5) estimates the pose of the feature of interest in a second image relative to the pose thereof in a first image, typically generated at a different time, and applies an affine transformation, for example to the second image, so as to produce a transformed second image in which the feature of interest has substantially the same pose as in the first image. The image data may also be processed so as to normalize the intensity characteristics of the images to be compared. Gross differences in pose can be eliminated by processing the image data so as to generate control data indicating how to set up the imaging apparatus to produce an image having the feature of interest oriented substantially in a desired pose.