Three-dimensional image generating method and system using multi-energy X-ray image and optical image

A three-dimensional image generating system which generates a three-dimensional image for an object, the system comprising:

• an optical image collecting unit which collects optical image for an object;
• a first transmission image generating unit which detects X-ray having a plurality of energy levels which transmits the object to generate a first transmission image group for the object;
• a three-dimensional surface model calculating unit which calculates a three-dimensional surface model for the object using the first transmission image group;
• and
• a three-dimensional image generating unit which generates a three-dimensional image for the object using the three-dimensional surface model and the optical image,
• wherein the three-dimensional surface model calculating unit includes a tomographic image reconstructing unit which reconstructs a tomographic image with an improved contrast of the soft tissue of the object using the first transmission image group, as compared with an example which uses a transmission image by one X-ray among X-rays having a plurality of energy levels, and
• wherein the tomographic image reconstructing unit includes:
• a second transmission image calculating unit which calculates a second transmission image with an improved contrast for the soft tissue of the object using the first transmission image group;
• and
• a tomographic image calculating unit which reconstructs and calculates a tomographic image for the object from the second transmission image.