Patents by Inventor Patrick Hébert
Patrick Hébert 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: 20140085429Abstract: A method for obtaining a refined pose for a 3D sensor for online 3D modeling of a surface geometry of an object, the pose encompassing six degrees of freedom (DOF) including three translation parameters and three orientation parameters, the method comprising: providing the 3D sensor, the 3D sensor being adapted to capture 3D point measurements of the surface of the object from a viewpoint; providing a geometry model of at least part of the surface; observing a portion of the surface of the object with the 3D sensor; measuring an initialization pose for the 3D sensor by at least one of positioning device pose measurement, predicted pose tracking and target observation; finding a best fit arrangement of the 3D point measurements in the geometry model using the initialization pose; generating the refined pose for the 3D sensor using the best fit arrangement.Type: ApplicationFiled: June 7, 2012Publication date: March 27, 2014Inventors: Patrick Hébert, Dragan Tubic, Olivier Gignac, Éric Saint-Pierre, Félix Rochette, Alexandre Carette
-
Publication number: 20130028478Abstract: A positioning method and system for non-destructive inspection of an object include providing at least one volumetric analysis sensor having sensor reference targets; providing a sensor model of a pattern of at least some of the sensor reference targets; providing object reference targets on at least one of the object and an environment of the object; providing an object model of a pattern of at least some of the object reference targets; providing a photogrammetric system including at least one camera and capturing at least one image in a field of view, at least a portion of the sensor reference and the object reference targets being apparent on the image; determining a sensor spatial relationship and an object spatial relationship; determining a sensor-to-object spatial relationship of the at I act one volumetric analysis sensor with respect to the object; repeating the steps and tracking a displacement of the volumetric analysis sensor and the object.Type: ApplicationFiled: May 3, 2011Publication date: January 31, 2013Inventors: Éric St-Pierre, Patrick Hébert, Charles Mony
-
Patent number: 8284240Abstract: There are provided systems and methods for obtaining a three-dimensional surface geometric characteristic and/or texture characteristic of an object. A pattern is projected on a surface of said object. A basic 2D image of said object is acquired; a characteristic 2D image of said object is acquired; 2D surface points are extracted from said basic 2D image, from a reflection of said projected pattern on said object; a set of 3D surface points is calculated in a sensor coordinate system using said 2D surface points; and a set of 2D surface geometric/texture characteristics is extracted.Type: GrantFiled: July 30, 2009Date of Patent: October 9, 2012Assignee: Creaform Inc.Inventors: Éric Saint-Pierre, Dragan Tubic, Patrick Hebert
-
Patent number: 8140295Abstract: An auto-referenced sensing device for scanning an object to provide three-dimensional surface points, including: a Light-Emitting Diode (LED) light source emitting light for illuminating and enabling image acquisition of retro-reflective target positioning features provided at a fixed position on the object; a laser pattern projector, additional to the LED light source, for providing a projected laser pattern on a surface of the object for illuminating and enabling image acquisition of dense points between the retro-reflective target positioning features; at least a pair of cameras for simultaneously acquiring a 2D image of the object, the projected laser pattern and the retro-reflective target positioning features are apparent on the image, wherein the simultaneous images contain both positioning measurements from the retro-reflective target positioning features and dense surface measurements from the points enabled by the projected laser pattern.Type: GrantFiled: December 3, 2010Date of Patent: March 20, 2012Assignee: Creaform Inc.Inventors: Patrick Hebert, Éric Saint-Pierre, Dragan Tubic
-
Patent number: 8082120Abstract: A method and hand-held scanning apparatus for three-dimensional scanning of an object is described. The hand-held self-referenced scanning apparatus has a light source for illuminating retro-reflective markers, the retro-reflective markers being provided at fixed positions on or around the object, a photogrammetric high-resolution camera, a pattern projector for providing a projected pattern on a surface of the object; at least a pair of basic cameras, the basic camera cooperating with light sources, the projected pattern and at least a portion of the retro-reflective markers being apparent on the 2D images, a frame for holding all components in position within the hand-held apparatus, the frame having a handle, the frame allowing support and free movement of the scanning apparatus by a user.Type: GrantFiled: December 2, 2009Date of Patent: December 20, 2011Assignee: Creaform Inc.Inventors: Éric St-Pierre, Pierre-Luc Gagné, Antoine Thomas Caron, Nicolas Beaupré, Dragan Tubic, Patrick Hébert
-
Patent number: 8032327Abstract: A method for obtaining three-dimensional surface points of an object in an object coordinate system having two groups of steps. The method includes providing a set of target positioning features on the object. In a first group of steps, acquiring 2D first images of the object, extracting 2D positioning features; calculating a first set of calculated 3D positioning features; computing first transformation parameters, cumulating the first set of transformed 3D positioning features to provide and augment the set of reference 3D positioning features. In a second group of steps, providing a projected pattern on a surface of the object; acquiring 2D second images of the object, extracting 2D surface points and second sets of 2D positioning features; calculating a set of 3D surface points; calculating a second set of calculated 3D positioning features; computing second transformation parameters, transforming the 3D surface points into transformed 3D surface points.Type: GrantFiled: December 3, 2010Date of Patent: October 4, 2011Assignee: Creaform Inc.Inventors: Patrick Hebert, Éric Saint-Pierre, Dragan Tubic
-
Publication number: 20110134225Abstract: There are provided systems and methods for obtaining a three-dimensional surface geometric characteristic and/or texture characteristic of an object. A pattern is projected on a surface of said object. A basic 2D image of said object is acquired; a characteristic 2D image of said object is acquired; 2D surface points are extracted from said basic 2D image, from a reflection of said projected pattern on said object; a set of 3D surface points is calculated in a sensor coordinate system using said 2D surface points; and a set of 2D surface geometric/texture characteristics is extracted.Type: ApplicationFiled: July 30, 2009Publication date: June 9, 2011Inventors: Éric Saint-Pierre, Dragan Tubic, Patrick Hebert
-
Publication number: 20110074929Abstract: An auto-referenced sensing device for scanning an object to provide three-dimensional surface points in an object coordinate system, comprising: a Light-Emitting Diode (LED) light source emitting light for illuminating and enabling image acquisition of at least a portion of a set of retro-reflective target positioning features, wherein each of the retro-reflective target positioning features is provided at a fixed position on the object; a laser pattern projector, additional to the LED light source, for providing a projected laser pattern on a surface of the object for illuminating and enabling image acquisition of dense points between at least two of the retro-reflective target positioning features in the portion of the set; at least a pair of cameras each for simultaneously acquiring a 2D image of the object, wherein both the projected laser pattern and the portion of the set of retro-reflective target positioning features are apparent on the simultaneous images, a spatial relationship between the pair of cType: ApplicationFiled: December 3, 2010Publication date: March 31, 2011Inventors: Patrick HÉBERT, Éric ST-PIERRE, Dragan TUBIC
-
Publication number: 20110074930Abstract: There is provided a method for obtaining three-dimensional surface points of an object in an object coordinate system having two groups of steps. The method first comprises providing a set of target positioning features on the object.Type: ApplicationFiled: December 3, 2010Publication date: March 31, 2011Inventors: Patrick HÉBERT, Éric ST-PIERRE, Dragan TUBIC
-
Patent number: 7912673Abstract: A system, apparatus and method for three-dimensional scanning and digitization of the surface geometry of objects are claimed. The system includes a hand-held apparatus that is auto-referenced. The system is auto-referenced since it does not need any positioning device to provide the 6 degree of freedom transformations that are necessary to integrate 3D measurements in a global coordinate system while the apparatus is manipulated to scan the surface. The system continuously calculates its own position and orientation from observation while scanning the surface geometry of an object. To do so, the system exploits a triangulation principle and integrates an apparatus that captures both surface points originating from the reflection of a projected laser pattern on an object's surface and 2D positioning features originating from the observation of target positioning features.Type: GrantFiled: March 13, 2006Date of Patent: March 22, 2011Assignee: Creaform Inc.Inventors: Patrick Hébert, Éric Saint-Pierre, Dragan Tubic
-
Publication number: 20100134598Abstract: A method and hand-held scanning apparatus for three-dimensional scanning of an object is described. The hand-held self-referenced scanning apparatus has a light source for illuminating retro-reflective markers, the retro-reflective markers being provided at fixed positions on or around the object, a photogrammetric high-resolution camera, a pattern projector for providing a projected pattern on a surface of the object; at least a pair of basic cameras, the basic camera cooperating with light sources, the projected pattern and at least a portion of the retro-reflective markers being apparent on the 2D images, a frame for holding all components in position within the hand-held apparatus, the frame having a handle, the frame allowing support and free movement of the scanning apparatus by a user.Type: ApplicationFiled: December 2, 2009Publication date: June 3, 2010Inventors: Éric ST-PIERRE, Pierre-Luc GAGNÉ, Antoine Thomas CARON, Nicolas BEAUPRÉ, Dragan TUBIC, Patrick HÉBERT
-
Patent number: 7487063Abstract: The present invention relates to a method and a system for creating three-dimensional models of objects from sets of arbitrary three-dimensional entities obtained from target surfaces. It also provides an efficient method for individually refining the alignment of curves to improve the accuracy of the surface model with a linear complexity with respect to the number of curves. The principle behind the invention is that a set of three-dimensional entities, at their approximate positions, creates a field from which the surface can be extracted. The field is constructed in a manner such that the three-dimensional entities are attracted toward the extracted surface. This attraction is used to accurately register each three-dimensional entity with respect to extracted surface. Through iterations, both the field and the entity positions are refined.Type: GrantFiled: June 11, 2004Date of Patent: February 3, 2009Assignee: Université LavalInventors: Dragan Tubic, Patrick Hébert, Denis Laurendeau
-
Publication number: 20080201101Abstract: A system, apparatus and method for three-dimensional scanning and digitization of the surface geometry of objects are claimed. The system comprises a hand-held apparatus that is auto-referenced. The system is auto-referenced since it does not need any positioning device to provide the 6 degree of freedom transformations that are necessary to integrate 3D measurements in a global coordinate system while the apparatus is manipulated to scan the surface. The system continuously calculates its own position and orientation from the reflection of a projected laser pattern on an object's surface and 2D positioning features originating from the observation of target positioning features. Using the described system, it is possible to simultaneously build and match a 3D representation of the positioning features while accumulating the 3D surface points describing the surface geometry.Type: ApplicationFiled: March 13, 2006Publication date: August 21, 2008Applicant: CREAFORM INC.Inventors: Patrick Hebert, Eric Saint-Pierre, Dragan Tubic
-
Publication number: 20070052974Abstract: The present invention relates to a method and a system for creating three-dimensional models of objects from sets of arbitrary three-dimensional entities obtained from target surfaces. It also provides an efficient method for individually refining the alignment of curves to improve the accuracy of the surface model with a linear complexity with respect to the number of curves. The principle behind the invention is that a set of three-dimensional entities, at their approximate positions, creates a field from which the surface can be extracted. The field is constructed in a manner such that the three-dimensional entities are attracted toward the extracted surface. This attraction is used to accurately register each three-dimensional entity with respect to extracted surface. Through iterations, both the field and the entity positions are refined.Type: ApplicationFiled: June 11, 2004Publication date: March 8, 2007Inventors: Dragan Tubic, Patrick Hebert, Denis Laurendeau
-
Patent number: 6122554Abstract: An electrode assembly for electrotherapy which is usable with a DC current generator which offers divided or biphase emission. The aforementioned assembly contains a conductive component (1) covered with a layer (3) of an adherent material of hydrogel, as well as an absorbent component for supplying water to the adherent material during use of the assembly. The absorbent component is filled with water and is situated between the conductive component (1) and the layer (3) of adherent material of hydrogel, so as to store and supply water to the adherent hydrogel layer.Type: GrantFiled: July 22, 1998Date of Patent: September 19, 2000Assignee: Sport-Elec S.A.Inventors: Herve Coral, Patrick Hebert
-
Patent number: 5946645Abstract: A three dimensional imaging method and device including a ranging sensor that is used to produce a series of profiles of a target surface. The profiles comprise one set of profiles nearly parallel to each other and a further such set of nearly parallel profiles, with the profiles of one set extending at an angle to those of the other set to generate a large number of profile crossings. At the location of each crossing the shortest distance between the profiles is detected and represents an energy contribution between this pair of profiles. An energy function is defined as the sum of the energy contributions of all the crossings. Using a known mathematical model, the profiles are then reoriented relative to each other in such a manner as to minimise this total energy. This process can be repeated for higher precision. The finally reoriented profiles can be used to define the desired three-dimensional shape of the target surface.Type: GrantFiled: April 9, 1997Date of Patent: August 31, 1999Assignee: National Research Council of CanadaInventors: Marc Rioux, Patrick Hebert
-
Patent number: 5178334Abstract: A process to increase the content of germanium which is found in an iron hydroxide phase of an ore of the supergene type for later recovery by solvent extraction. The process comprises the steps of first crushing the ore, converting the ore to pulp, and then subjecting the pulp to a magnetic separation to give a magnetic fraction enriched in germanium. Also, the process can be used to increase the content of gallium which is found in a jarosite phase of an ore of the supergene type for later recovery by solvent extraction.Type: GrantFiled: March 9, 1992Date of Patent: January 12, 1993Assignee: Metaleurop S.A.Inventors: Patrick Hebert, Jean-Jacques Predali
-
Patent number: D530249Type: GrantFiled: January 10, 2006Date of Patent: October 17, 2006Assignee: Honda Motor Co., Ltd.Inventors: Johnathan Norman, Patrick Hebert, Masaya Kikuchi
-
Patent number: D466062Type: GrantFiled: September 18, 2001Date of Patent: November 26, 2002Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Michael Tsay, Maki Yamaguchi, Patrick Hebert, Toshimitsu Shimizu