RENDERING EXPANDED LUMEN IMAGE

摘要

Methods, systems, and apparatus including computer programs encoded on a computer storage medium, for rendering an expanded lumen image are disclosed. The methods include extracting a centre line of a lumen from a three-dimensional lumen image and obtaining a plurality of viewpoints by sampling the centre line, establishing a spherical projection plane for each of the viewpoints, a point on the spherical projection plane corresponding to a point on an inner wall of the lumen, determining a relationship between a two-dimensional projection plane and the inner wall of the lumen according to a corresponding relationship between the spherical projection plane and the two-dimensional projection plane, and obtaining a two-dimensional expanded image of the three-dimensional lumen image by performing image rendering on the two-dimensional projection plane according to the determined relationship between the two-dimensional projection plane and the inner wall of the lumen.

主权项

1. A method of rendering an expanded lumen image, comprising:
obtaining a plurality of viewpoints by sampling a centre line of a lumen based on a three-dimensional lumen image; establishing a spherical projection plane for each of the viewpoints, wherein a point on the spherical projection plane corresponds to a point on an inner wall of the lumen; determining a relationship between a two-dimensional projection plane and the inner wall of the lumen according to a corresponding relationship between the spherical projection plane and the two-dimensional projection plane; and obtaining a two-dimensional expanded image of the three-dimensional lumen image by performing image rendering on the two-dimensional projection plane according to the determined relationship between the two-dimensional projection plane and the inner wall of the lumen.