Patent Document ID: 8194962
Application ID: 12232596
Patent Status: 1

Claim One:
1. A method for detecting and correcting movements in tomographic or projective image series, comprising: generating a time series of tomographic or projective image data records of an examination object; determining a first image data record as a reference comparison image data record; determining a threshold value, wherein exceeding the threshold value is intended to be considered a movement; selecting a second image data record, temporally subsequent to the first image data record, as a comparison image data record; calculating a degree of disparity between the reference comparison image data record and the comparison image data record, at least with respect to a subsection; defining a start of a new image interval if the degree of disparity lies above the threshold value and using the comparison image data record as a new reference comparison image data record, and assigning the comparison image data record to a current image interval if the degree of disparity does not lie above the threshold value; selecting a temporally subsequent image data record as a new comparison image data record until an end of the image series is reached; repeating the calculating, defining and selecting of a temporally subsequent image data record if a new, temporally subsequent comparison image data record is present; selecting an image interval as a representative image interval; selecting respectively one image data record from each image interval as an interval reference comparison image data record; determining a transformation function for correcting movements for each image interval based on spatial differences between the interval reference comparison image data record of the representative image interval and every other interval reference comparison image data record; correcting image data records from the image intervals using the determined transformation functions; and at least one of outputting the corrected image data records for further processing and displaying the corrected image data records.