Patent ID: 11922633
Assignee: CANON U.S.A., INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  A | IPC G

Claim 10:
11. The method of claim 7, wherein one or more of the following:
(i) the extracting NA equally spaced and perpendicular to the catheter or probe cross-section(s) of or from the 3D A-line volume step operates to increase, or to allow the user to increase, the segmentation accuracy by choosing or selecting more cross-section(s) such that a detail of the detection may be chosen automatically or manually by the user;
(ii) the applying of the global correction step operates to correct, or to allow the user to correct, either the border detection or the lumen detection;
(iii) the applying of the global correction step operates to correct, or to allow the user to correct, either the border detection or the lumen detection via a drag and drop global correction feature or features, and/or pre and post frames of the correct frame is corrected automatically or manually;
(iv) the translating the detected border(s) of the A-line cross-section(s) to frame points and linearly interpolating the remaining points of the lumen step includes A-line distance calculations such that an accuracy of the calculations or processing is improved and computational time is decreased; and/or
(v) the translating the detected border(s) of the A-line cross-section(s) to frame points and linearly interpolating the remaining points of the lumen step includes A-line distance calculations without any transformation from Cartesian to polar coordinates, such that an accuracy of the calculations or processing is improved and computational time is decreased.