A visualization system includes an imaging device, a processing circuit, and a display device. The imaging device is configured to acquire image data relating to an object. The processing circuit is configured to generate a three-dimensional object image of the object based on the image data and generate a two-dimensional object image of the object by projecting a cross-section of the three-dimensional object image onto a plane. The display device is configured to display the three-dimensional object image of the object and display the two-dimensional object image of the object on the plane.
