Apparatus and method for reconstructing tomography images using motion information

A tomography apparatus comprising at least one processor configured to:

• obtain a first partial image using first tomography data acquired as a first X-ray generator for generating X-rays having a first energy and a second X-ray generator for generating X-rays having a second energy rotate around an object over a first angular range and a second angular range different from the first angular range, and to obtain a second partial image using second tomography data acquired as the first x-ray generator and the second X-ray generator rotate around the object over the second angular range and a third angular range opposite to the first angular range;
• acquire motion information representing an amount of motion of the object over time by using the first partial image and the second partial image;
• and
• reconstruct a target image showing the object at a target time point by using the motion information.

A method of reconstructing a tomography image, the method comprising:

• obtaining a first image using first tomography data acquired as a first X-ray generator for generating X-rays having a first energy rotates around an object over a first angular range, and obtaining a second image using second tomography data acquired as a second X-ray generator for generating X-rays having a second energy rotates around the object over a second angular range different from the first angular range;
• determining motion information representing an amount of motion of the object over time by using the first image and the second image;
• and
• reconstructing a target image showing the object at a target time point using the motion information.