Patents by Inventor Pawel DALASINSKI

Pawel DALASINSKI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11464409
    Abstract: An optical coherence tomography apparatus includes a control unit configured, before a tomographic image to be stored is obtained using the output from the light receiving unit during a period in which the measurement light is scanned in a first scanning pattern for scanning an image capturing region of the subject eye, to control the optical scanning unit so as to repeatedly scan the measurement light in a second scanning pattern for scanning the measurement light over at least part of the image capturing region in a scanning time shorter than a scanning time of the first scanning pattern and to control the driving unit so as to drive the focusing unit using the output from the light receiving unit during a period in which the measurement light is repeatedly scanned in the second scanning pattern.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: October 11, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Slawomir Orlowski, Pawel Dalasinski, Tomasz Bajraszewski
  • Publication number: 20200196857
    Abstract: An optical coherence tomography apparatus includes a control unit configured, before a tomographic image to be stored is obtained using the output from the light receiving unit during a period in which the measurement light is scanned in a first scanning pattern for scanning an image capturing region of the subject eye, to control the optical scanning unit so as to repeatedly scan the measurement light in a second scanning pattern for scanning the measurement light over at least part of the image capturing region in a scanning time shorter than a scanning time of the first scanning pattern and to control the driving unit so as to drive the focusing unit using the output from the light receiving unit during a period in which the measurement light is repeatedly scanned in the second scanning pattern.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Inventors: Slawomir Orlowski, Pawel Dalasinski, Tomasz Bajraszewski
  • Patent number: 10342423
    Abstract: The present invention defines a method of correcting for eye movement during optical coherence tomography imaging. The method includes imaging (by scanning) a fundus of an eye to obtain a fundus image (for example, using an SLO); scanning the fundus to obtain a plurality of tomographic images (for example, using OCT); determining, at predetermined intervals, an alignment of the tomographic images with respect to the fundus image, and, if it is determined that there is a misalignment, determining the number of tomographic images that have been scanned in the predetermined interval since the previous alignment determination; determining the offset by which the tomographic images are misaligned; applying the offset to the next tomographic image to be scanned and rescanning the determined number of tomographic images that were scanned during the interval between misalignment being determined and offset being applied.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: July 9, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Slawomir Orlowski, Tomasz Dziubak, Jakub Szatkowski, Pawel Dalasinski, Maciej Pańkowiec
  • Publication number: 20180153401
    Abstract: An ophthalmic apparatus includes a control unit configured to control a scanning unit so that scanning lines of a first field and scanning lines of a second field are alternately arranged in a direction crossing the scanning lines, and a detection unit configured to, in a case where one of first front images of the first field is selected as a reference image, detect movement of the subject's eye using information indicating a position gap between the reference image and the first front images, and detect the movement of the subject's eye using information indicating a position gap between the reference image and second front images of the second field and information indicating a difference in position between the first field and the second field.
    Type: Application
    Filed: December 6, 2017
    Publication date: June 7, 2018
    Inventors: Pawel Strózyk, Slawomir Orlowski, Pawel Dalasinski, Maciej Pankowiec, Krzysztof Piotrowski, Masao Shikaumi, Yukio Sakagawa
  • Publication number: 20170325681
    Abstract: The present invention defines a method of correcting for eye movement during optical coherence tomography imaging. The method includes imaging (by scanning) a fundus of an eye to obtain a fundus image (for example, using an SLO); scanning the fundus to obtain a plurality of tomographic images (for example, using OCT); determining, at predetermined intervals, an alignment of the tomographic images with respect to the fundus image, and, if it is determined that there is a misalignment, determining the number of tomographic images that have been scanned in the predetermined interval since the previous alignment determination; determining the offset by which the tomographic images are misaligned; applying the offset to the next tomographic image to be scanned and rescanning the determined number of tomographic images that were scanned during the interval between misalignment being determined and offset being applied.
    Type: Application
    Filed: August 2, 2017
    Publication date: November 16, 2017
    Inventors: Slawomir ORLOWSKI, Tomasz DZIUBAK, Jakub SZATKOWSKI, Pawel DALASINSKI, Maciej PANKOWIEC
  • Patent number: 9750403
    Abstract: The present invention defines a method of correcting for eye movement during optical coherence tomography imaging. The method includes imaging (by scanning) a fundus of an eye to obtain a fundus image (for example, using an SLO); scanning the fundus to obtain a plurality of tomographic images (for example, using OCT); determining, at predetermined intervals, an alignment of the tomographic images with respect to the fundus image, and, if it is determined that there is a misalignment, determining the number of tomographic images that have been scanned in the predetermined interval since the previous alignment determination; determining the offset by which the tomographic images are misaligned; applying the offset to the next tomographic image to be scanned and rescanning the determined number of tomographic images that were scanned during the interval between misalignment being determined and offset being applied.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: September 5, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Slawomir Orlowski, Tomasz Dziubak, Jakub Szatkowski, Pawel Dalasinski, Maciej Pańkowiec
  • Publication number: 20150109579
    Abstract: The present invention defines a method of correcting for eye movement during optical coherence tomography imaging. The method includes imaging (by scanning) a fundus of an eye to obtain a fundus image (for example, using an SLO); scanning the fundus to obtain a plurality of tomographic images (for example, using OCT); determining, at predetermined intervals, an alignment of the tomographic images with respect to the fundus image, and, if it is determined that there is a misalignment, determining the number of tomographic images that have been scanned in the predetermined interval since the previous alignment determination; determining the offset by which the tomographic images are misaligned; applying the offset to the next tomographic image to be scanned and rescanning the determined number of tomographic images that were scanned during the interval between misalignment being determined and offset being applied.
    Type: Application
    Filed: October 21, 2014
    Publication date: April 23, 2015
    Inventors: Slawomir ORLOWSKI, Tomasz DZIUBAK, Jakub SZATKOWSKI, Pawel DALASINSKI, Maciej PANKOWIEC