Patents by Inventor Eugene J. Alexander

Eugene J. Alexander 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: 20180286071
    Abstract: Anthropometric measurements provide indicators of human and livestock health and wellbeing. Today, there is a well-developed manual protocol to measure the proportionate size of humans but it is slow, requires bulky and costly equipment, is subject to accuracy and precision errors, and requires initial and on-going training of field staff. There are also techniques to measure animal size but they generally require fixed installations and multiple imagers. Portable 3-D imaging systems in conjunction with portable computing devices and access to the cloud computing and storage infrastructure will be useful tools to automatically, objectively extract these anthropometric measures, and to consistently provide other anthropometric measures which heretofore have been unobtainable, provided the difficulty of scanning moving subjects can be overcome.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 4, 2018
    Inventor: Eugene J. Alexander
  • Publication number: 20160270696
    Abstract: Methods are disclosed for assessing the condition of a cartilage in a joint and assessing cartilage loss, particularly in a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the effect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. The amount of cartilage tissue that has been lost, for example as a result of arthritis, can be estimated.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 22, 2016
    Inventors: Philipp Lang, Daniel Steines, Eugene J. Alexander, Thomas P. Andriacchi
  • Patent number: 9289153
    Abstract: Methods are disclosed for assessing the condition of a cartilage in a joint and assessing cartilage loss, particularly in a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. The amount of cartilage tissue that has been lost, for example as a result of arthritis, can be estimated.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: March 22, 2016
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Philipp Lang, Daniel Steines, Eugene J. Alexander, Thomas P. Andriacchi
  • Publication number: 20150327795
    Abstract: Methods are disclosed for assessing the condition of a cartilage in a joint, particularly a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. Information on thickness of cartilage and curvature of cartilage or subchondral bone can be used to plan therapy. Information on movement pattern can be used to plan therapy.
    Type: Application
    Filed: October 14, 2014
    Publication date: November 19, 2015
    Inventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Sandy A. Napel
  • Patent number: 8862202
    Abstract: Methods are disclosed for assessing the condition of a cartilage in a joint, particularly a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. Information on thickness of cartilage and curvature of cartilage or subchondral bone can be used to plan therapy. Information on movement pattern can be used to plan therapy.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: October 14, 2014
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Sandy A. Napel
  • Patent number: 8848035
    Abstract: A device and method for producing a model of the surface of one aspect of a three dimensional object. The model is produced by extracting a three dimensional mesh from a pattern projected on the object. The three dimensional object maybe in motion.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: September 30, 2014
    Assignee: Motion Analysis Corporation
    Inventor: Eugene J. Alexander
  • Publication number: 20130006598
    Abstract: Methods are disclosed for assessing the condition of a cartilage in a joint, particularly a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. Information on thickness of cartilage and curvature of cartilage or subchondral bone can be used to plan therapy. Information on movement pattern can be used to plan therapy.
    Type: Application
    Filed: September 10, 2012
    Publication date: January 3, 2013
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Sandy A. Napel
  • Patent number: 8265730
    Abstract: Methods are disclosed for assessing the condition of a cartilage in a joint, particularly a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. Information on thickness of cartilage and curvature of cartilage or subchondral bone can be used to plan therapy. Information on movement pattern can be used to plan therapy.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: September 11, 2012
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Sandy A. Napel
  • Patent number: 8223208
    Abstract: A device and technique are presented to calibrate an imaging device for generating three-dimensional surface models of moving objects and calculating three-dimensional coordinates of detected features relative to a coordinate system embedded in the device. The internal projector and camera parameters, i.e., zoom, focus, aperture, optical center, logical pixel size, aspect ratio, are determined for all projectors and cameras and all possible focal planes of the device in operation.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: July 17, 2012
    Assignee: Motion Analysis Corporation
    Inventor: Eugene J. Alexander
  • Patent number: 8112142
    Abstract: Methods are disclosed for assessing the condition of a cartilage in a joint, particularly in a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. Information on thickness of cartilage and curvature of cartilage or subchondral bone can be used to plan therapy. Information on movement pattern can be used to plan therapy.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: February 7, 2012
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Daniel Steines
  • Patent number: 7643158
    Abstract: A method is presented that allows multiple devices for generating three dimensional surface models of moving objects to be used simultaneously. A timing pattern is used to control and trigger the devices in order to operate seven of the devices without interference. In one embodiment, a method of employing optical filters is also described that then allows operation of forty nine of the devices at the same time if the normal visible spectrum is to be used for simultaneous video acquisition. In another embodiment, if no simultaneous video acquisition is required, the optical filtering technique can support up to one hundred fifty four imaging devices operating simultaneously.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: January 5, 2010
    Assignee: Motion Analysis Corporation
    Inventor: Eugene J. Alexander
  • Publication number: 20090076371
    Abstract: Methods for assessing the condition of a cartilage in a joint and assessing cartilage loss, particularly in a human knee, are disclosed. In one method, a method for modeling healthy cartilage, the method includes measuring the distance between each of at least two points on an articular cartilage surface corresponding to margins of a defect and a corresponding point on the sub-chondral bone surface, and interpolating a reconstructed cartilage boundary. In a second method, a method for generating a three-dimensional approximation of healthy cartilage, the method includes determining a set of distances between at least three points on a first articular surface corresponding to margins of a defect and at least three corresponding points on a second cartilage surface, and approximating a reconstructed cartilage surface.
    Type: Application
    Filed: November 25, 2008
    Publication date: March 19, 2009
    Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Philipp Lang, Daniel Steines, Eugene J. Alexander, Thomas P. Andriacchi
  • Patent number: 7239908
    Abstract: Methods are disclosed for assessing the condition of a cartilage in a joint, particularly a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. Information on thickness of cartilage and curvature of cartilage or subchondral bone can be used to plan therapy. Information on movement pattern can be used to plan therapy.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: July 3, 2007
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Daniel Steines
  • Publication number: 20040167390
    Abstract: Methods are disclosed for assessing the condition of a cartilage in a joint, particularly a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. Information on thickness of cartilage and curvature of cartilage or subchondral bone can be used to plan therapy. Information on movement pattern can be used to plan therapy.
    Type: Application
    Filed: January 22, 2004
    Publication date: August 26, 2004
    Inventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Daniel Steines
  • Publication number: 20020087274
    Abstract: Methods are disclosed for assessing the condition of a cartilage in a joint, particularly a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. Information on thickness of cartilage and curvature of cartilage or subchondral bone can be used to plan therapy. Information on movement pattern can be used to plan therapy.
    Type: Application
    Filed: June 15, 2001
    Publication date: July 4, 2002
    Inventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Sandy A. Napel
  • Patent number: RE43282
    Abstract: Methods are disclosed for assessing the condition of a cartilage in a joint, particularly in a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. Information on thickness of cartilage and curvature of cartilage or subchondral bone can be used to plan therapy. Information on movement pattern can be used to plan therapy.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: March 27, 2012
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Daniel Steines