公开(公告)号：US10825152B2

公开(公告)日：2020-11-03

申请号：US16124545

申请日：2018-09-07

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

Inventor： Tzu-Yu Wu ,  Bin Wu

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

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.

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.

公开(公告)号：US20170360398A1

公开(公告)日：2017-12-21

申请号：US15628093

申请日：2017-06-20

Applicant: Canon U.S.A. Inc.

Inventor： Mark Alan Hamm ,  Bin Wu ,  Albert Dunfee ,  Badr Elmaanaoui

IPC: A61B8/00 ,  G01S7/52 ,  G01S15/89 ,  A61B8/12

CPC classification number: A61B8/4254 ,  A61B8/12 ,  A61B8/445 ,  A61B8/4461 ,  G01S7/5205 ,  G01S15/894

Abstract: Exemplary probes including longitudinal marker elements arranged parallel to the probe axis are provided for reducing or eliminating non-uniform rotational distortions (NURD) in imaging systems. Additional ring marker elements may also be provided to reduce or eliminate non-uniform linear distortion (NULD). These probes, as well as systems and methods of use provide for images having better image quality and reduced NURD.

公开(公告)号：US20210121132A1

公开(公告)日：2021-04-29

申请号：US17077894

申请日：2020-10-22

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

Inventor： Kohei Watanabe ,  Bin Wu

IPC: A61B5/00 ,  G01B9/02 ,  G01N21/64

Abstract: The present patent application aims to teach apparatus, methods, and systems for providing accurate imaging in an OCT-Fluorescence imaging system, all the while decreasing lengthy processing times for the imaging, thus leading to a more accurate and timely delivery of data and images to the end user.

公开(公告)号：US10952702B2

公开(公告)日：2021-03-23

申请号：US15628093

申请日：2017-06-20

Applicant: Canon U.S.A. Inc.

Inventor： Mark Alan Hamm ,  Bin Wu ,  Albert Dunfee ,  Badr Elmaanaoui

IPC: A61B8/12 ,  A61B8/00 ,  G01S7/52 ,  G01S15/89

Abstract: Exemplary probes including longitudinal marker elements arranged parallel to the probe axis are provided for reducing or eliminating non-uniform rotational distortions (NURD) in imaging systems. Additional ring marker elements may also be provided to reduce or eliminate non-uniform linear distortion (NULD). These probes, as well as systems and methods of use provide for images having better image quality and reduced NURD.

公开(公告)号：US11382516B2

公开(公告)日：2022-07-12

申请号：US16414222

申请日：2019-05-16

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

Inventor： Bin Wu ,  Tzu-Yu Wu

IPC: G06T7/13 ,  G06T5/00 ,  A61B5/00 ,  A61B8/12 ,  A61B8/08 ,  G06T11/00 ,  G06T5/20

Abstract: One or more devices, systems, methods and storage mediums for performing optical coherence tomography (OCT) while detecting one or more lumen edges and/or one or more artifacts are provided. Examples of applications include imaging, evaluating and diagnosing biological objects, such as, but not limited to, for Gastro-intestinal, cardio and/or ophthalmic applications, and being obtained via one or more optical instruments, such as, but not limited to, optical probes, catheters, capsules and needles (e.g., a biopsy needle). Preferably, the OCT devices, systems methods and storage mediums include or involve a method, such as, but not limited to, for removing the detected one or more artifacts from the image(s).