Reconstruction of a resultant image taking account of contour significance data

A control and computation unit for calculating resultant image data of an examination object from scan data acquired during a relative rotation movement between a radiation source of an X-ray image recording system and the examination object, the control and computation unit comprising:

• a memory storing program computer-readable instructions;
• and
• one or more processors configured to execute the instructions such that the one or more processors are configured to,
• reconstruct initial image data from the scan data;
• derive contour data from the initial image data;
• calculate contour significance data from at least one of the scan data and the initial image data;
• and
• calculate the resultant image data using the contour data and the contour significance data.

A control and computation unit for calculating resultant image data of an examination object from scan data acquired during a relative rotation movement between a radiation source of an X-ray image recording system and the examination object, the control and computation unit comprising:

• a reconstruction unit, configured to reconstruct initial image data from the scan data;
• a derivation unit, configured to derive contour data from the initial image data;
• a first computation unit, configured to calculate contour significance data from at least one of the scan data and the initial image data;
• and
• a second computation unit, configured to calculate the resultant image data using the contour data and the contour significance data.