Patents by Inventor Nassir Navab

Nassir Navab 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).

  • Publication number: 20210142508
    Abstract: A calibration platform may obtain measurements for aligning a real-world coordinate system and a display coordinate system. For example, the calibration platform may display, via an optical see-through head-mounted display (OST-HMD), a three-dimensional virtual object and receive, from a positional tracking device, information that relates to a current pose of a three-dimensional real-world object to be aligned with the three-dimensional virtual object. The calibration platform may record a three-dimensional position of a plurality of points on the three-dimensional real-world object based on the current pose of the three-dimensional real-world object, based on an indication that the plurality of points on the three-dimensional real-world object respectively corresponds with a plurality of points on the three-dimensional virtual object.
    Type: Application
    Filed: January 31, 2019
    Publication date: May 13, 2021
    Applicant: The Johns Hopkins University
    Inventors: Ehsan AZIMI, Long QIAN, Peter KAZANZIDES, Nassir NAVAB
  • Publication number: 20210121243
    Abstract: A system for modelling a portion of a patient includes a processing unit, a manipulator, a sensor, and a display device. The processing unit is configured to receive patient data and to process the patient data to generate a model of the portion of the patient. The sensor is configured to capture manipulator data. The processing unit is configured to receive the manipulator data from the sensor and to process the manipulator data to determine a position of the manipulator, an orientation of the manipulator, or both. The display device is configured to display the model on or in the manipulator.
    Type: Application
    Filed: March 30, 2018
    Publication date: April 29, 2021
    Inventors: Bernhard FUERST, Greg M. OSGOOD, Nassir NAVAB, Alexander WINKLER
  • Publication number: 20210103753
    Abstract: A computer-implemented method for registering low dimensional images with a high dimensional image includes receiving a high dimensional image of a region of interest and simulating synthetic low dimensional images of the region of interest from a number of poses of a virtual low dimensional imaging device, from the high dimensional image. The method determines positions of landmarks within the low dimensional images by applying a first learning algorithm to the low dimensional images and back projecting of the positions of the determined landmarks into the high dimensional image space, to thereby obtain the positions of the landmarks in the high dimensional image. The positions of landmarks within low dimensional images acquired form an imaging device are determined by applying the first or a second learning algorithm to the low dimensional images. The low dimensional images are registered with the high dimensional image based on the positions of the landmarks.
    Type: Application
    Filed: October 2, 2020
    Publication date: April 8, 2021
    Applicant: Maxer Endoscopy GmbH
    Inventors: Nassir Navab, Matthias Grimm, Javier Esteban, Wojciech Konrad Karcz
  • Publication number: 20200363867
    Abstract: A calibration platform may display, via an optical see-through head-mounted display (OST-HMD), a virtual image having at least one feature. The calibration platform may determine, based on information relating to a gaze of a user wearing the OST-HMD, that the user performed a voluntary eye blink to indicate that the at least one feature of the virtual image appears to the user to be aligned with at least one point on the three-dimensional real-world object. The calibration platform may record an alignment measurement based on a position of the at least one point on the three-dimensional real-world object in a real-world coordinate system based on a time when the user performed the voluntary eye blink. Accordingly, the alignment measurement may be used to generate a function providing a mapping between three-dimensional points in the real-world coordinate system and corresponding points in a display space of the OST-HMD.
    Type: Application
    Filed: January 31, 2019
    Publication date: November 19, 2020
    Applicant: The Johns Hopkins University
    Inventors: Ehsan AZIMI, Long QIAN, Peter KAZANZIDES, Nassir NAVAB
  • Publication number: 20200275988
    Abstract: The present invention is directed to a system and method for image to world registration for medical reality applications, using a world spatial map. This invention is a system and method to link any point in a fluoroscopic image to its corresponding position in the visual world using spatial mapping with a head mounted display (HMD) (world tracking). On a projectional fluoroscopic 2D image, any point on the image can be thought of as representing a line that is perpendicular to the plane of the image that intersects that point. The point itself could lie at any position in space along this line, located between the X-Ray source and the detector. With the aid of the HMD, a virtual line is displayed in the visual field of the user.
    Type: Application
    Filed: October 2, 2018
    Publication date: September 3, 2020
    Inventors: Alex A. Johnson, Kevin Yu, Sebastian Andress, Mohammadjavad Fotouhighazvin, Greg M. Osgood, Nassir Navab, Mathias Unberath
  • Patent number: 10755433
    Abstract: A method and system for scanning an object using an RGB-D sensor, the method includes: a plurality of elementary scans of the object using an RGB-D sensor and visual odometry, each elementary scan delivering a plurality of key frames associated with a pose of the sensor with respect to the object, and each elementary scan being associated with a position of the object; for each elementary scan, elaborating a three-dimensional model of the object using the plurality of key frames and poses of the scan; merging each three-dimensional model into a merged three-dimensional model of the object.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: August 25, 2020
    Assignee: TOYOTA MOTOR EUROPE
    Inventors: Zbigniew Wasik, Wadim Kehl, Nassir Navab
  • Patent number: 10639017
    Abstract: A system for tracking a tracking element inside a body is provided. It includes a first tracking system, which includes a first tracking sensor for detecting the current position of a tracking element inside a body relative to a nominal position with respect to the first tracking sensor, and a second tracking system, which includes a second tracking sensor for determining the position of the first tracking sensor of the first tracking system relative to the second tracking sensor, and a control unit. The first tracking sensor is movable, and the control unit is configured to deliver a correction signal indicating a deviation of the current position of the tracking element relative to a nominal position with reference to the first tracking sensor. Further, a respective tracking method is provided.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: May 5, 2020
    Inventor: Nassir Navab
  • Patent number: 10448860
    Abstract: A system and method for tracking a position of an interventional medical device configured to be deployed into a subject during a medical procedure. An anatomical dataset of the subject is acquired while at least one electrical sensor is disposed along the interventional medical device. A feedback signal is generated from the electrical sensor and is processed and analyzed to identify positional information of the interventional medical device. A position of the interventional medical device with respect to the anatomical dataset is identified and the position of the interventional medical device with respect to the anatomical dataset is shown on a display.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: October 22, 2019
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Nassir Navab, Noah Cowan, Bernhard Fuerst, Eric S. Fortune
  • Publication number: 20190000564
    Abstract: The present disclosure provides a system and method for generating medical images. The method utilizes a novel algorithm to co-register Cone-Beam Computed Tomography (CBCT) volumes and additional imaging modalities, such as optical or RGB-D images.
    Type: Application
    Filed: December 30, 2016
    Publication date: January 3, 2019
    Inventors: Nassir Navab, Bernhard Fuerst, Mohammadjavad Fotouhighazvini, Sing Chun Lee
  • Publication number: 20180279883
    Abstract: A medical imaging apparatus for combined X-ray and optical visualization is provided. It comprises: an X-ray detector positioned above a patient; an X-ray source positioned below a patient; a control device; and a camera setup adapted to deliver an optical stereoscopic or 3D image. Thereby, the camera setup is positioned adjacent to the X-ray detector above the patient, and the control device is adapted to calculate an optical 2D image or a 3D surface from the data delivered by the camera setup, that optical 2D image or 3D surface having a virtual viewpoint similar to the viewpoint of the X-ray source. It is further adapted to superimpose an X-ray image acquired by the X-ray detector and the optical 2D image or 3D surface in order to achieve an augmented optical/X-ray image.
    Type: Application
    Filed: September 28, 2016
    Publication date: October 4, 2018
    Inventor: Nassir Navab
  • Publication number: 20170287162
    Abstract: A method and system for scanning an object using an RGB-D sensor, the method includes: a plurality of elementary scans of the object using an RGB-D sensor and visual odometry, each elementary scan delivering a plurality of key frames associated with a pose of the sensor with respect to the object, and each elementary scan being associated with a position of the object; for each elementary scan, elaborating a three-dimensional model of the object using the plurality of key frames and poses of the scan; merging each three-dimensional model into a merged three-dimensional model of the object.
    Type: Application
    Filed: August 29, 2014
    Publication date: October 5, 2017
    Applicants: TOYOTA MOTOR EUROPE, TECHNISCHE UNIVERSITAT MUNCHEN
    Inventors: Zbigniew WASIK, Wadim KEHL, Nassir NAVAB
  • Patent number: 9743898
    Abstract: An image generating apparatus for image generation is provided. The image generating apparatus includes a movable detector for detecting nuclear radiation during a detection period and an evaluation system. The evaluation system includes an interface system for transmitting detector data to the evaluation system. The detector data include information about the detected radiation for image generation. The evaluation system further includes a data memory portion for storing the detector data. The evaluation system further includes a program memory portion with a program for repeatedly determining at least one quality value with respect to image generation during the detection period.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 29, 2017
    Assignee: Surgiceye GmbH
    Inventors: Thomas Wendler, Nassir Navab, Jörg Traub
  • Patent number: 9578313
    Abstract: The present invention provides a method and apparatus for depth image acquisition of an object wherein at least two time-of-flight cameras are provided and the object is illuminated with a plurality of different light emission states by emitting light signals from each camera. Measurements of the light reflected by the object during each light emission state are obtained at all the cameras wherein the measurements may then be used to optimize the depth images at each of the cameras.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: February 21, 2017
    Assignee: Technische Universitat Munchen Forschungsforderung und Technologietransfar
    Inventors: Nassir Navab, Victor Antonio Castaneda Zeman, Diana Mateus
  • Publication number: 20160236077
    Abstract: A method for distributing tasks includes selecting at least one interactive process according to at least one task and transferring input data related to the at least one task to at least one server associated with the at least one interactive process. The input data is to be distributed to one or more clients configured to execute entities of the at least one interactive process. The method further includes collecting, from the at least one server associated with the at least one interactive process, one or more results of processing of respective entities of the at least one interactive process based on the input data on the one or more clients, and providing output data for the at least one task based on the collected one or more results.
    Type: Application
    Filed: February 17, 2015
    Publication date: August 18, 2016
    Inventors: Maximilian Baust, Christoph Hennersperger, Nassir Navab
  • Publication number: 20160228726
    Abstract: Disclosed herein is an instrument kit and applicator for the localized internal irradiation of tumors or temporary post-operative cavities. For example, an applicator is disclosed in the form of a balloon for a radiation source of ionized radiation, which applicator enables an exactly dosed irradiation in the tissue concerned.
    Type: Application
    Filed: September 18, 2014
    Publication date: August 11, 2016
    Inventors: Michael FRIEBE, Nassir NAVAB
  • Publication number: 20150305701
    Abstract: An image generating apparatus for image generation is provided. The image generating apparatus includes a movable detector for detecting nuclear radiation during a detection period and an evaluation system. The evaluation system includes an interface system for transmitting detector data to the evaluation system. The detector data include information about the detected radiation for image generation. The evaluation system further includes a data memory portion for storing the detector data. The evaluation system further includes a program memory portion with a program for repeatedly determining at least one quality value with respect to image generation during the detection period.
    Type: Application
    Filed: June 12, 2015
    Publication date: October 29, 2015
    Applicant: SURGICEYE GMBH
    Inventors: Thomas WENDLER, Nassir NAVAB, Jörg TRAUB
  • Patent number: 9146198
    Abstract: A device for combined optical and nuclear image comprises a nuclear image acquisition module and a reference image acquisition module. The reference image acquisition module has: an optical image sensor; and an optical imaging system for deflecting the optical radiation from a reference field of view to the image sensor, wherein the optical imaging system comprises a mirror for the optical radiation, which mirror is arranged between the reference field of view and the optical image sensor. On the image sensor, a respective image area assigned to at least one of nuclear partial fields of view. The optical imaging system is arranged such that the optical radiation coming from the at least one nuclear partial field of view is deflected substantially exactly to the respectively assigned of the image areas.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: September 29, 2015
    Assignee: SURGICEYE GMBH
    Inventors: Thomas Wendler, Nassir Navab
  • Publication number: 20150164372
    Abstract: A medical device configured for monitoring one or more health conditions, particularly restenosis, as described. The medical device includes two or more sensors configured to be implanted for exposure to blood within a vessel or to blood within a graft provided in a vessel, wherein each of the two or more sensors is configured to sense at least the pressure in the vessel or the graft; and a support structure for supporting the two or more sensors, wherein the support structure has a distal end and a proximal end, wherein at least one of the two or more sensors is closer to the distal end than another one of the two or more sensors.
    Type: Application
    Filed: July 19, 2013
    Publication date: June 18, 2015
    Inventors: Nassir NAVAB, Amin KATOUZIAN
  • Publication number: 20150150525
    Abstract: A diagnostic device for computer tomography and nuclear imaging of a body is provided. The device includes at least one movable robot arm, an x-ray source, and a detector for nuclear radiation. Further, a method for the 3D imaging of a body is provided. The method includes irradiating the body by a moving x-ray source, and acquiring nuclear emission data via readings from a moving nuclear detector, supervising the poses of the x-ray source and the nuclear detector, synchronizing the readings from the nuclear detector and the x-ray source with their respective poses, and calculating 3D images by using the acquired information from the x-ray source and from the nuclear detector.
    Type: Application
    Filed: June 11, 2013
    Publication date: June 4, 2015
    Inventors: Nassir Navab, Thomas Wendler
  • Publication number: 20140333728
    Abstract: The present invention provides a method and apparatus for depth image acquisition of an object wherein at least two time-of-flight cameras are provided and the object is illuminated with a plurality of different light emission states by emitting light signals from each camera. Measurements of the light reflected by the object during each light emission state are obtained at all the cameras wherein the measurements may then be used to optimise the depth images at each of the cameras.
    Type: Application
    Filed: February 10, 2012
    Publication date: November 13, 2014
    Applicant: Technische Universitat Munchen Forschungsforderung und Technologietransfer
    Inventors: Nassir Navab, Victor Antonio Castaneda Zeman, Diana Mateus