公开(公告)号：US10561303B2

公开(公告)日：2020-02-18

申请号：US15879269

申请日：2018-01-24

Applicant: Canon U.S.A., Inc.

Inventor： Tzu-Yu Wu

IPC: F21V7/04 ,  A61B1/00 ,  A61B5/00 ,  A61B1/07 ,  G02B23/24

Abstract: An optical probe comprises a light-guiding component, an optical component, a light-reflecting component that is configured to receive light from the optical component and direct the light along a path, and a correction component. The correction component lies in the path, the correction component has an optical power, and the correction component has a center of curvature that substantially coincides with an optical axis of the optical component.

公开(公告)号：US20190223699A1

公开(公告)日：2019-07-25

申请号：US15879269

申请日：2018-01-24

Applicant: Canon U.S.A., Inc.

Inventor： Tzu-Yu Wu

IPC: A61B1/00 ,  A61B5/00 ,  A61B1/07

Abstract: An optical probe comprises a light-guiding component, an optical component, a light-reflecting component that is configured to receive light from the optical component and direct the light along a path, and a correction component. The correction component lies in the path, the correction component has an optical power, and the correction component has a center of curvature that substantially coincides with an optical axis of the optical component.

公开(公告)号：US20190080439A1

公开(公告)日：2019-03-14

申请号：US16124545

申请日：2018-09-07

Applicant: CANON U.S.A., INC.

Inventor： Tzu-Yu Wu ,  Bin Wu

IPC: G06T5/00 ,  G01J3/28 ,  G01J3/40 ,  G06T5/50 ,  A61B1/00

CPC classification number: G06T5/006 ,  A61B1/00009 ,  G01J3/2823 ,  G01J3/40 ,  G01J2003/283 ,  G06T5/50 ,  G06T2207/10068

Abstract: Methods, apparatuses, systems, and storage mediums for correcting distortion of a spectrally encoded endoscopy (SEE) image are provided. A first reference pattern comprising a plurality of radial lines is scanned with an SEE spectral line to obtain a first image. Signs of a tangential shift and/or of a radial shift of the spectral line may be determined, and magnitudes of the tangential shift and of the radial shift may be computed. A second reference pattern comprising at least a circle with the SEE spectral line may be scanned to obtain a second image in a case where the radial shift is positive. The magnitude of the radial shift may be computed based on the magnitude of the tangential shift and a radius of the circle. The tangential shift and the radial shift may then be applied for correcting distortion.