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).
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Publication number: 20180286071Abstract: 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: ApplicationFiled: March 29, 2018Publication date: October 4, 2018Inventor: Eugene J. Alexander
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Publication number: 20160270696Abstract: 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: ApplicationFiled: March 21, 2016Publication date: September 22, 2016Inventors: Philipp Lang, Daniel Steines, Eugene J. Alexander, Thomas P. Andriacchi
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Patent number: 9289153Abstract: 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: GrantFiled: April 25, 2006Date of Patent: March 22, 2016Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Philipp Lang, Daniel Steines, Eugene J. Alexander, Thomas P. Andriacchi
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Publication number: 20150327795Abstract: 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: ApplicationFiled: October 14, 2014Publication date: November 19, 2015Inventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Sandy A. Napel
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Patent number: 8862202Abstract: 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: GrantFiled: September 10, 2012Date of Patent: October 14, 2014Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Sandy A. Napel
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Patent number: 8848035Abstract: 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: GrantFiled: October 4, 2006Date of Patent: September 30, 2014Assignee: Motion Analysis CorporationInventor: Eugene J. Alexander
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Publication number: 20130006598Abstract: 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: ApplicationFiled: September 10, 2012Publication date: January 3, 2013Applicant: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Sandy A. Napel
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Patent number: 8265730Abstract: 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: GrantFiled: June 15, 2001Date of Patent: September 11, 2012Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Sandy A. Napel
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Patent number: 8223208Abstract: 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: GrantFiled: November 10, 2006Date of Patent: July 17, 2012Assignee: Motion Analysis CorporationInventor: Eugene J. Alexander
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Patent number: 8112142Abstract: 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: GrantFiled: June 27, 2007Date of Patent: February 7, 2012Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Daniel Steines
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Patent number: 7643158Abstract: 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: GrantFiled: October 4, 2006Date of Patent: January 5, 2010Assignee: Motion Analysis CorporationInventor: Eugene J. Alexander
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Publication number: 20090076371Abstract: 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: ApplicationFiled: November 25, 2008Publication date: March 19, 2009Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITYInventors: Philipp Lang, Daniel Steines, Eugene J. Alexander, Thomas P. Andriacchi
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Patent number: 7239908Abstract: 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: GrantFiled: September 14, 2000Date of Patent: July 3, 2007Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Daniel Steines
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Publication number: 20040167390Abstract: 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: ApplicationFiled: January 22, 2004Publication date: August 26, 2004Inventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Daniel Steines
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Publication number: 20020087274Abstract: 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: ApplicationFiled: June 15, 2001Publication date: July 4, 2002Inventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Sandy A. Napel
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Patent number: RE43282Abstract: 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: GrantFiled: August 19, 2008Date of Patent: March 27, 2012Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Eugene J. Alexander, Thomas P. Andriacchi, Philipp Lang, Daniel Steines