公开(公告)号：US20190172180A1

公开(公告)日：2019-06-06

申请号：US15830947

申请日：2017-12-04

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

Inventor： Santosh Ganesan

IPC: G06T5/00 ,  G06T5/20 ,  G06T7/90

Abstract: An image processing device and method are provided that generates a window having a predetermined size and including a geometric center point to analyze the image data and identifies, as speckle data, one or more pixels of the image data positioned within the generated window. Corrected image data is generated by replacing the one or more pixels identified as speckle data with a replacement pixel value derived from pixels surrounding to the one or more pixels identified as speckle data in a case where the one or more pixels identified as speckle data is equal to or greater than a confidence threshold.

公开(公告)号：US11010877B2

公开(公告)日：2021-05-18

申请号：US15881404

申请日：2018-01-26

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

Inventor： Santosh Ganesan ,  Zhuo Wang

IPC: G06T5/00 ,  G06T5/40 ,  G06T3/40 ,  G06T7/10 ,  G06T5/20 ,  G06T7/00 ,  A61B1/00 ,  G06T5/50 ,  H04N5/235 ,  A61B5/00

Abstract: An image processing apparatus is provided and includes one or more processors and a memory storing instructions. The one or more processors are controlled to receive image stream data captured by an image capturing apparatus and store, in memory, a current image frame from the received image stream data and store, in memory, a previously received image frame from the received image stream data. The previously received image frame having been received at a time earlier than the current image data frame. Using the previously received image frame data stored in memory, a compensation value representing an illumination spectrum of the previously stored image frame data is calculated and image correction is performed on the current image frame data using the calculated compensation value. The corrected current image frame for display on a display device.

公开(公告)号：US11202652B2

公开(公告)日：2021-12-21

申请号：US16054758

申请日：2018-08-03

Applicant: Canon U.S.A., Inc. ,  The Brigham and Women's Hospital Inc.

Inventor： Junichi Tokuda ,  Laurent Chauvin ,  Kemal Tuncali ,  Nobuhiko Hata ,  Santosh Ganesan ,  Barret Daniels ,  Brian Ninni ,  Franklin King

IPC: A61B17/34 ,  A61B90/00 ,  A61B90/11 ,  A61B34/20 ,  A61B34/10

Abstract: Exemplary methods, apparatus, and systems are disclosed for automated registration and motion compensation of patient-mounted needle guide medical devices using fiducial markers, and processing algorithms where a re-registration step is provided. These methods, apparati, and systems adaptively compensate for the displacement of the medical device and/or target location due to the patient movement or internal organ motion.

公开(公告)号：US20190046232A1

公开(公告)日：2019-02-14

申请号：US16054758

申请日：2018-08-03

Applicant: Canon U.S.A., Inc. ,  The Brigham and Women's Hospital Inc.

Inventor： Junichi Tokuda ,  Laurent Chauvin ,  Kemal Tuncali ,  Nobuhiko Hata ,  Santosh Ganesan ,  Barret Daniels ,  Brian Ninni ,  Franklin King

IPC: A61B17/34 ,  A61B90/00 ,  A61B90/11 ,  A61B34/20

Abstract: Exemplary methods, apparatus, and systems are disclosed for automated registration and motion compensation of patient-mounted needle guide medical devices using fiducial markers, and processing algorithms where a re-registration step is provided. These methods, apparati, and systems adaptively compensate for the displacement of the medical device and/or target location due to the patient movement or internal organ motion.

公开(公告)号：US20180218482A1

公开(公告)日：2018-08-02

申请号：US15881404

申请日：2018-01-26

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

Inventor： Santosh Ganesan ,  Zhuo Wang

IPC: G06T5/00 ,  G06T5/40 ,  G06T7/10 ,  G06T3/40

CPC classification number: G06T5/009 ,  A61B1/00009 ,  A61B5/0075 ,  A61B5/0084 ,  A61B2576/00 ,  G06T3/4084 ,  G06T5/002 ,  G06T5/20 ,  G06T5/40 ,  G06T5/50 ,  G06T7/0012 ,  G06T7/10 ,  G06T2207/10024 ,  G06T2207/10068 ,  G06T2207/20032 ,  H04N5/2351

Abstract: An image processing apparatus is provided and includes one or more processors and a memory storing instructions. The one or more processors are controlled to receive image stream data captured by an image capturing apparatus and store, in memory, a current image frame from the received image stream data and store, in memory, a previously received image frame from the received image stream data. The previously received image frame having been received at a time earlier than the current image data frame. Using the previously received image frame data stored in memory, a compensation value representing an illumination spectrum of the previously stored image frame data is calculated and image correction is performed on the current image frame data using the calculated compensation value. The corrected current image frame for display on a display device.