Method and system for processing cardiovascular image for dection of cardiovascular legions

An information processing system, comprising:

• a communication interface;
• one or more processors;
• and
• a memory storing instructions that, when executed by the one or more processors, cause the information processing system to:
• receive a cardiovascular image;
• acquire a first image mask corresponding to at least a part of blood vessels included in the cardiovascular image;
• acquire a centerline image mask corresponding to centerlines of at least the part of blood vessels included in the cardiovascular image;
• extract a first image patch from the cardiovascular image;
• extract a second image patch from the centerline image mask;
• generate a refined third image patch by performing, based on the first image patch and the second image patch, a local refinement;
• and
• generate, based on the refined third image patch and the first image mask, a refined second image mask.

A method performed by a computing device, the method comprising:

• receiving a cardiovascular image;
• acquiring a first image mask corresponding to at least a part of blood vessels included in the cardiovascular image;
• acquiring a centerline image mask corresponding to centerlines of at least the part of blood vessels included in the cardiovascular image;
• extracting a first image patch from the cardiovascular image;
• extracting a second image patch from the centerline image mask;
• generating refined blood vessel contour information by performing, based on the first image patch and the second image patch, a local refinement;
• and
• generating, based on the refined blood vessel contour information and a first blood vessel contour acquired from the first image mask, a refined second blood vessel contour.