Patents by Inventor Velizar Kolev

Velizar Kolev 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: 11642096
    Abstract: A method for postural independent location of targets in diagnostic images acquired by multimodal acquisitions, compensating for deformation of soft tissues due to changing posture, includes generating a transition of a digital image of the inside of a target region from a first to a second position by correlating the position of markers placed on the external surface of the target region in a digital image of the inside of the target region and in a digital representation of the external surface of the target region acquired by optically scanning the external surface; and at a later time registering the diagnostic image of the inside of the target region, transitioned into the second position, with a diagnostic image of the same target region acquired with the target region in the second position by matching a second representation of the external surface of the target region in the second position without markers with the diagnostic image of the inside of the target region transitioned into the second posit
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: May 9, 2023
    Inventors: Stefano De Beni, Velizar Kolev
  • Patent number: 11510656
    Abstract: An ultrasound imaging method includes providing a digital representation of the shape of a surface or boundary of an anatomic region or organ; acquiring an ultrasound image by ultrasound scanning the anatomic region or organ; and combining the digital representation of the shape of the surface or boundary of the anatomic region or organ by registering the digital representation of the shape of the surface or boundary and the ultrasound image as a function of the difference in position of selected reference points on the digital representation of the surface or boundary and on the ultrasound image, the position of the reference points on the ultrasound image being determined by tracking the probe position at the reference points at the anatomic region or organ of a real body and in a spatial reference system, in which the anatomic region or the organ of the real body is placed.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: November 29, 2022
    Inventors: Stefano De Beni, Antonella De Rosa, Velizar Kolev, Georgios Sakas
  • Publication number: 20210321976
    Abstract: A method for postural independent location of targets in diagnostic images acquired by multimodal acquisitions, compensating for deformation of soft tissues due to changing posture, includes generating a transition of a digital image of the inside of a target region from a first to a second position by correlating the position of markers placed on the external surface of the target region in a digital image of the inside of the target region and in a digital representation of the external surface of the target region acquired by optically scanning the external surface; and at a later time registering the diagnostic image of the inside of the target region, transitioned into the second position, with a diagnostic image of the same target region acquired with the target region in the second position by matching a second representation of the external surface of the target region in the second position without markers with the diagnostic image of the inside of the target region transitioned into the second posit
    Type: Application
    Filed: July 1, 2021
    Publication date: October 21, 2021
    Inventors: Stefano De Beni, Velizar Kolev
  • Patent number: 11096655
    Abstract: A method for postural independent location of targets in diagnostic images acquired by multimodal acquisitions, compensating for deformation of soft tissues due to changing posture, includes generating a transition of a digital image of the inside of a target region from a first to a second position by correlating the position of markers placed on the external surface of the target region in a digital image of the inside of the target region and in a digital representation of the external surface of the target region acquired by optically scanning the external surface; and at a later time registering the diagnostic image of the inside of the target region, transitioned into the second position, with a diagnostic image of the same target region acquired with the target region in the second position by matching a second representation of the external surface of the target region in the second position without markers with the diagnostic image of the inside of the target region transitioned into the second posit
    Type: Grant
    Filed: May 6, 2018
    Date of Patent: August 24, 2021
    Inventors: Stefano De Beni, Velizar Kolev
  • Publication number: 20200237347
    Abstract: An ultrasound imaging method includes providing a digital representation of the shape of a surface or boundary of an anatomic region or organ; acquiring an ultrasound image by ultrasound scanning the anatomic region or organ; and combining the digital representation of the shape of the surface or boundary of the anatomic region or organ by registering the digital representation of the shape of the surface or boundary and the ultrasound image as a function of the difference in position of selected reference points on the digital representation of the surface or boundary and on the ultrasound image, the position of the reference points on the ultrasound image being determined by tracking the probe position at the reference points at the anatomic region or organ of a real body and in a spatial reference system, in which the anatomic region or the organ of the real body is placed.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 30, 2020
    Inventors: Stefano De Beni, Antonella De Rosa, Velizar Kolev, Georgios Sakas
  • Patent number: 10152799
    Abstract: Provided is a method and arrangement for registering first image data of a first stream with second image data of a second stream. The image data include image information about at least one organ, wherein a shape and/or position of the organ is cyclically changing: Each of the streams include a series of images of the at least one organ at a plurality of different discrete stages of the cyclic change so that each image corresponds to one of the discrete stages. A phase variable defines the stage of the cyclic change and a phase value of the phase variable is assigned to each image within each stream, thereby defining the discrete stage represented by the image. A registration is determined for a pair of images selected by choosing or interpolating images from the first stream and second stream to which a same phase value is assigned.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: December 11, 2018
    Assignees: MedCom Gesellschaft für medizinische Bildverarbeitung mbH, ESAOTE S.p.A.
    Inventors: Georgios Sakas, Velizar Kolev, Stefano De Beni, Leonardo Forzoni
  • Patent number: 10130328
    Abstract: Method for ultrasound image acquisition includes defining a fixed frame of reference, with an origin of coordinates within a transmitter of a tracking system; detecting position and orientation of a probe relative to the frame of reference with a probe sensor of the tracking system coupled to the probe; detecting position and orientation of a body relative to the frame of reference with a reference sensor of the tracking system coupled to the body; calculating position and orientation of the probe with respect to the body; acquiring a set of 2D images constituting a 3D by transmitting an ultrasonic beam into the body and receiving echographic signals with the probe; iterating for a predetermined number of 3D image acquisitions; generating a panoramic 3D image by combining the 2D images based on information of position and orientation of the probe relative to the body for each 2D image acquisition.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: November 20, 2018
    Inventors: Stefano De Beni, Leonardo Forzoni, Sara D'Onofrio, Velizar Kolev, Georgios Sakas
  • Publication number: 20180325489
    Abstract: A method for postural independent location of targets in diagnostic images acquired by multimodal acquisitions, compensating for deformation of soft tissues due to changing posture, includes generating a transition of a digital image of the inside of a target region from a first to a second position by correlating the position of markers placed on the external surface of the target region in a digital image of the inside of the target region and in a digital representation of the external surface of the target region acquired by optically scanning the external surface; and at a later time registering the diagnostic image of the inside of the target region, transitioned into the second position, with a diagnostic image of the same target region acquired with the target region in the second position by matching a second representation of the external surface of the target region in the second position without markers with the diagnostic image of the inside of the target region transitioned into the second posit
    Type: Application
    Filed: May 6, 2018
    Publication date: November 15, 2018
    Inventors: Stefano De Beni, Velizar Kolev
  • Patent number: 9974618
    Abstract: The present invention pertains to a method for image-assisted navigation, wherein an imaging specification for imaging a point in a three-dimensional system of coordinates in a point in a two-dimensional system of coordinates is determined, wherein a location of the imaging device is detected, and wherein the location of the imaging device is displayed in the two-dimensional reference image (RB).
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: May 22, 2018
    Assignees: MedCom Gesellschaft für medizinische Bildverarbeitung mbH, ESAOTE S.p.A.
    Inventors: Georgios Sakas, Velizar Kolev, Stefano De Beni, Leonardo Forzoni
  • Publication number: 20170186181
    Abstract: Provided is a method and arrangement for registering first image data of a first stream with second image data of a second stream. The image data include image information about at least one organ, wherein a shape and/or position of the organ is cyclically changing: Each of the streams include a series of images of the at least one organ at a plurality of different discrete stages of the cyclic change so that each image corresponds to one of the discrete stages. A phase variable defines the stage of the cyclic change and a phase value of the phase variable is assigned to each image within each stream, thereby defining the discrete stage represented by the image. A registration is determined for a pair of images selected by choosing or interpolating images from the first stream and second stream to which a same phase value is assigned.
    Type: Application
    Filed: December 23, 2016
    Publication date: June 29, 2017
    Inventors: Georgios Sakas, Velizar Kolev, Stefano De Beni, Leonardo Forzoni
  • Publication number: 20160379368
    Abstract: The present invention pertains to a method for image-assisted navigation, wherein an imaging specification for imaging a point in a three-dimensional system of coordinates in a point in a two-dimensional system of coordinates is determined, wherein a location of the imaging device is detected, and wherein the location of the imaging device is displayed in the two-dimensional reference image (RB).
    Type: Application
    Filed: May 18, 2016
    Publication date: December 29, 2016
    Applicants: Medcom Gesellschaft fur medizinische Bildverarveitung mbH, ESAOTE S.p.A.
    Inventors: Georgios Sakas, Velizar Kolev, Stefano De Beni, Leonardo Forzoni
  • Publication number: 20160074012
    Abstract: A method of ultrasound image acquisition, generation and display includes the steps of: acquiring ultrasound image data corresponding to an anatomic region being examined using an ultrasound probe; generating an ultrasound image based on the image data; displaying the image on a display; generating a map of the outer surface of the anatomic region; detecting the position of the probe during image data acquisition; identifying on the map the point corresponding to the detected position of the probe; and displaying the map in which such point is marked, at the same time as the ultrasound image is displayed.
    Type: Application
    Filed: March 26, 2015
    Publication date: March 17, 2016
    Applicants: ESAOTE S.P.A., MEDCOM GMBH
    Inventors: Leonardo Forzoni, Stefano De Beni, Velizar Kolev, Georgios Sakas
  • Publication number: 20150209002
    Abstract: Method for ultrasound image acquisition includes defining a fixed frame of reference, with an origin of coordinates within a transmitter of a tracking system; detecting position and orientation of a probe relative to the frame of reference with a probe sensor of the tracking system coupled to the probe; detecting position and orientation of a body relative to the frame of reference with a reference sensor of the tracking system coupled to the body; calculating position and orientation of the probe with respect to the body; acquiring a set of 2D images constituting a 3D by transmitting an ultrasonic beam into the body and receiving echographic signals with the probe; iterating for a predetermined number of 3D image acquisitions; generating a panoramic 3D image by combining the 2D images based on information of position and orientation of the probe relative to the body for each 2D image acquisition.
    Type: Application
    Filed: September 4, 2013
    Publication date: July 30, 2015
    Applicants: MEDCOM GMBH, ESAOTE SPA
    Inventors: Stefano De Beni, Leonardo Forzoni, Sara D'Onofrio, Velizar Kolev, Georgios Sakas