Image processing apparatus, image processing method, image processing system, and program

An image processing apparatus comprising:

• a memory storing a program;
• and
• one or more processors which, by executing the program, function as:
• a coordinate transformation obtaining unit configured to obtain coordinate transformation for respectively transforming a first image and a second image obtained by imaging an object to a first transformed image and a second transformed image;
• an information obtaining unit configured to obtain correspondence information that serves as information of a corresponding point included in each of the first transformed image and the second transformed image;
• a transformation unit configured to respectively transform a position of the corresponding point included in each of the first transformed image and the second transformed image to a position in the first image and the second image on the basis of the correspondence information obtained by the information obtaining unit and the coordinate transformation obtained by coordinate transformation obtaining unit;
• and
• an output unit configured to output the positions of the corresponding points transformed to the positions in the first image and the second image by the transformation unit, the first image, and the second image to an apparatus configured to obtain deformation transformation for performing registration between the images.

An image processing apparatus comprising:

• a memory storing a program;
• and
• one or more processors which, by executing the program, function as:
• a first information obtaining unit configured to obtain first correspondence information that serves as information of a corresponding point included in a first image and a second image obtained by imaging an object;
• a deformation transformation obtaining unit configured to obtain information related to deformation transformation for performing registration of the first image and the second image on the basis of the first correspondence information;
• a deformed image generation unit configured to generate a deformed image by deforming at least one of the first image and the second image on the basis of the information related to the deformation transformation;
• and
• a second information obtaining unit configured to obtain second correspondence information that serves as information of the corresponding point included in each of the first image and the second image on the basis of the deformed image,
• wherein the deformation transformation obtaining unit obtains the information related to the deformation transformation for performing the registration of the first image and the second image further on the basis of the second correspondence information.

An image processing method for performing a process using one or more processors, the image processing method comprising:

• obtaining coordinate transformation for respectively transforming a first image and a second image obtained by imaging an object to a first transformed image and a second transformed image;
• obtaining correspondence information that serves as information of a corresponding point included in each of the first transformed image and the second transformed image;
• transforming a position of the corresponding point included in the first transformed image to a position in the first image and transforming a position of the corresponding point included in the second transformed image to a position in the second image on the basis of the obtained correspondence information and the obtained coordinate transformation;
• and
• obtaining deformation transformation for performing registration of the first image and the second image on the basis of information of the corresponding points respectively transformed to the positions in the first image and the second image.