Patents by Inventor Christoph Niederberger
Christoph Niederberger 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: 9406131Abstract: A method for generating a 3D representation of a dynamically changing 3D scene, which includes the steps of: acquiring at least two synchronised video streams (120) from at least two cameras located at different locations and observing the same 3D scene (102); determining camera parameters, which comprise the orientation and zoom setting, for the at least two cameras (103); tracking the movement of objects (310a,b, 312a,b; 330a,b, 331a,b, 332a,b; 410a,b, 411a,b; 430a,b, 431a,b; 420a,b, 421a,b) in the at least two video streams (104); determining the identity of the objects in the at least two video streams (105); determining the 3D position of the objects by combining the information from the at least two video streams (106); wherein the step of tracking (104) the movement of objects in the at least two video streams uses position information derived from the 3D position of the objects in one or more earlier instants in time.Type: GrantFiled: May 24, 2007Date of Patent: August 2, 2016Assignee: LIBEROVISION AGInventors: Stephan Würmlin, Christoph Niederberger
-
Patent number: 8830236Abstract: A computer-implemented method for estimating a pose of an articulated object model that is a computer based 3D model of a real world object observed by one or more source cameras, including the steps of obtaining a source image from a video stream; processing the source image to extract a source image segment maintaining, in a database, a set of reference silhouettes, each being associated with an articulated object model and a corresponding reference pose; comparing the source image segment to the reference silhouettes and selecting reference silhouettes by taking into account, for each reference silhouette, a matching error that indicates how closely the reference silhouette matches the source image segment retrieving the corresponding reference poses of the articulated object models; and computing an estimate of the pose of the articulated object model from the reference poses of the selected reference silhouettes.Type: GrantFiled: April 28, 2011Date of Patent: September 9, 2014Assignee: Liberovision AGInventors: Marcel Germann, Stephan Wuermlin Stadler, Richard Keiser, Remo Ziegler, Christoph Niederberger, Alexander Hornung, Marcus Gross
-
Publication number: 20140037213Abstract: A method of processing image data includes providing an image sequence such as a video sequence, or a camera transition, identifying a region-of-interest in at least one image of the image sequence, defining a transition region around the region-of-interest and defining a remaining portion of the image to be a default region or background region, applying different image effects to the region-of-interest, the transition region and the background region.Type: ApplicationFiled: April 2, 2012Publication date: February 6, 2014Applicant: LIBEROVISION AGInventors: Christoph Niederberger, Stephan Wurmlin Stadler, Remo Ziegler, Marco Feriencik, Andreas Burch, Urs Donni, Richard Keiser, Julia Vogel Wenzin
-
Patent number: 8355083Abstract: What is disclosed is a computer-implemented image-processing system and method for the automatic generation of video sequences that can be associated with a televised event. The methods can include the steps of: Defining a reference keyframe from a reference view from a source image sequence; From one or more keyframes, automatically computing one or more sets of virtual camera parameters; Generating a virtual camera flight path, which is described by a change of virtual camera parameters over time, and which defines a movement of a virtual camera and a corresponding change of a virtual view; and Rendering and storing a virtual video stream defined by the virtual camera flight path.Type: GrantFiled: July 22, 2011Date of Patent: January 15, 2013Inventors: Richard Keiser, Christoph Niederberger, Stephan Wuermlin Stadler, Remo Ziegler
-
Publication number: 20120188452Abstract: What is disclosed is a computer-implemented image-processing system and method for the automatic generation of video sequences that can be associated with a televised event. The methods can include the steps of: Defining a reference keyframe from a reference view from a source image sequence; From one or more keyframes, automatically computing one or more sets of virtual camera parameters; Generating a virtual camera flight path, which is described by a change of virtual camera parameters over time, and which defines a movement of a virtual camera and a corresponding change of a virtual view; and Rendering and storing a virtual video stream defined by the virtual camera flight path.Type: ApplicationFiled: July 22, 2011Publication date: July 26, 2012Applicant: LIBEROVISION AGInventors: Richard KEISER, Christoph NIEDERBERGER, Stephan WUERMLIN STADLER, Remo ZIEGLER
-
Publication number: 20110267344Abstract: A computer-implemented method for estimating a pose of an articulated object model (4), wherein the articulated object model (4) is a computer based 3D model (1) of a real world object (14) observed by one or more source cameras (9), and wherein the pose of the articulated object model (4) is defined by the spatial location of joints (2) of the articulated object model (4), comprises the steps of obtaining a source image (10) from a video stream; processing the source image (10) to extract a source image segment (13); maintaining, in a database, a set of reference silhouettes, each being associated with an articulated object model (4) and a corresponding reference pose; comparing the source image segment (13) to the reference silhouettes and selecting reference silhouettes by taking into account, for each reference silhouette, a matching error that indicates how closely the reference silhouette matches the source image segment (13) and/or a coherence error that indicates how much the reference pose is conType: ApplicationFiled: April 28, 2011Publication date: November 3, 2011Applicant: LIBEROVISION AGInventors: Marcel Germann, Stephan Wuermlin Stadler, Richard Keiser, Remo Ziegler, Christoph Niederberger, Alexander Hornung, Marcus Gross
-
Publication number: 20090315978Abstract: A method for generating a 3D representation of a dynamically changing 3D scene, which includes the steps of: acquiring at least two synchronised video streams (120) from at least two cameras located at different locations and observing the same 3D scene (102); determining camera parameters, which comprise the orientation and zoom setting, for the at least two cameras (103); tracking the movement of objects (310a,b, 312a,b; 330a,b, 331 a,b, 332a,b; 410a,b, 411a,b; 430a,b, 431a,b; 420a,b, 421 a,b) in the at least two video streams (104); determining the identity of the objects in the at least two video streams (105); determining the 3D position of the objects by combining the information from the at least two video streams (106); wherein the step of tracking (104) the movement of objects in the at least two video streams uses position information derived from the 3D position of the objects in one or more earlier instants in time.Type: ApplicationFiled: May 24, 2007Publication date: December 24, 2009Applicant: EIDGENOSSISCHE TECHNISCHE HOCHSCHULE ZURICHInventors: Stephan Würmlin, Christoph Niederberger
-
Publication number: 20090184892Abstract: A display device is formed from a plurality of modules (2) each including a large number of display elements (21) formed by diffusely radiating hollow bodies. The light sources thereof can be controlled individually in terms of brightness and colour. In this way, it is possible to construct large display devices for halls and stadia.Type: ApplicationFiled: April 24, 2007Publication date: July 23, 2009Applicant: ETH ZURICHInventors: Martina Eberle, Christoph Niederberger
-
Patent number: 7425115Abstract: A thermal turbomachine is disclosed having at least one row of rotor blades. At least one first rotor blade has a greater radial length than the others and at the blade tip is equipped with a first abrasive layer. At least one rotor blade which has a shorter radial length than the first rotor blade is equipped with a second abrasive layer at the blade tip. The first abrasive layer has a better cutting capacity and a lower thermal stability than the second abrasive layer. During commissioning of the thermal turbomachine, the first abrasive layer is in contact with the abradable layer of the stator, and during continuous operation of the thermal turbomachine the second abrasive layer is in contact with the abradable layer of the stator.Type: GrantFiled: October 14, 2005Date of Patent: September 16, 2008Assignee: Alstom Technology LtdInventors: Nicolas Campino Johnson, Matthias Hoebel, Jonas Hurter, Christoph Niederberger
-
Publication number: 20060062664Abstract: The invention discloses a thermal turbomachine having at least one row of rotor blades (1). At least one first rotor blade (1) has a greater radial length than the others and at the blade tip (2) is equipped with a first abrasive layer (72). At least one rotor blade (1) which has a shorter radial length than the first rotor blade (1) is equipped with a second abrasive layer (71) at the blade tip (2). The first abrasive layer (72) has a better cutting capacity and a lower thermal stability than the second abrasive layer (71). During commissioning of the thermal turbomachine, the first abrasive layer (72) is in contact with the abradable layer of the stator (8), and during continuous operation of the thermal turbomachine the second abrasive layer (71) is in contact with the abradable layer of the stator (8).Type: ApplicationFiled: October 14, 2005Publication date: March 23, 2006Applicant: ALSTOM Technology LtdInventors: Nicolas Campino Johnson, Matthias Hoebel, Jonas Hurter, Christoph Niederberger