Patents by Inventor Ayellet Tal
Ayellet Tal 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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Patent number: 9007369Abstract: A method for photogrammetric texture mapping using casual images is provided. The method may include the following steps: estimating, for each vertex of at least a portion of a three dimensional (3D) mesh representing a model, projection parameters associated with a virtual camera that is unique for each vertex; mapping pixels from a two dimensional (2D) image to the vertices, such that each mapping of a pixel is based on the estimated respective virtual camera parameters; and texturing the portion of the mesh with corresponding mapped pixels wherein vertices on the textured portion are selected such that they are visible from a specified viewpoint associated with the 3D mesh.Type: GrantFiled: September 10, 2013Date of Patent: April 14, 2015Assignee: Technion Research and Development Foundation Ltd.Inventors: Yochay Tzur, Ayellet Tal
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Patent number: 8896602Abstract: A method for determining an optimal location for positioning an image capturing device within a volume, the method including, obtaining a plurality of points to be visible from the image capturing device, performing inversion on points located in the vicinity of the plurality of points thus creating a computerized inversed object, each point in the vicinity of the plurality of point is translated to a corresponding point in the computerized inversed object, defining a convex hull of the inversed object, determining if a point of the plurality of points is visible from the viewpoint according to the position of its corresponding point on the convex hull relative to its neighbor points, repeating said determining for multiple locations within the volume, determining whether a predetermined set of points is visible from each location, selecting the optimal location of the image capturing device based on the results of said repeated determining.Type: GrantFiled: August 7, 2013Date of Patent: November 25, 2014Assignee: Technion Research and Development Foundation Ltd.Inventors: Sagi Katz, Ayellet Tal
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Patent number: 8693780Abstract: A computerized method of image processing to form a collage within a predetermined outline from a plurality of images, the method comprising: processing each image to assign a saliency measure to each pixel, said processing utilizing a dissimilarity measure which combines an appearance component and a distance component; finding a first patch of said image and comparing with other patches at different distances from said first patch using said dissimilarity measure, thereby to obtain a score; applying to each pixel of said first patch said obtained score; continuing said comparing and scoring with additional patches of said image until each pixel obtains a score; from said scored pixels providing for each image a region of interest, by setting an initial boundary that encloses a predetermined set of highest scored pixels, and propagating a curve around said initial boundary in such a way as to minimize length and maximize included saliency; and combining said regions of interest into said collage by: orderingType: GrantFiled: June 22, 2010Date of Patent: April 8, 2014Assignee: Technion Research & Development Foundation LimitedInventors: Ayellet Tal, Lihi Zelnik-Manor, Stas Goferman
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Publication number: 20140009466Abstract: A method for photogrammetric texture mapping using casual images is provided. The method may include the following steps: estimating, for each vertex of at least a portion of a three dimensional (3D) mesh representing a model, projection parameters associated with a virtual camera that is unique for each vertex; mapping pixels from a two dimensional (2D) image to the vertices, such that each mapping of a pixel is based on the estimated respective virtual camera parameters; and texturing the portion of the mesh with corresponding mapped pixels wherein vertices on the textured portion are selected such that they are visible from a specified viewpoint associated with the 3D mesh.Type: ApplicationFiled: September 10, 2013Publication date: January 9, 2014Applicant: Technion R&D Foundation Ltd.Inventors: Yochay Tzur, Ayellet Tal
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Publication number: 20130321421Abstract: A method for determining an optimal location for positioning an image capturing device within a volume, the method including, obtaining a plurality of points to be visible from the image capturing device, performing inversion on points located in the vicinity of the plurality of points thus creating a computerized inversed object, each point in the vicinity of the plurality of point is translated to a corresponding point in the computerized inversed object, defining a convex hull of the inversed object, determining if a point of the plurality of points is visible from the viewpoint according to the position of its corresponding point on the convex hull relative to its neighbor points, repeating said determining for multiple locations within the volume, determining whether a predetermined set of points is visible from each location, selecting the optimal location of the image capturing device based on the results of said repeated determining.Type: ApplicationFiled: August 7, 2013Publication date: December 5, 2013Applicant: TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LTD.Inventors: Sagi Katz, Ayellet Tal
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Patent number: 8531473Abstract: A method for photogrammetric texture mapping using casual images is provided. The method may include the following steps: estimating, for each vertex of at least a portion of a three dimensional (3D) mesh representing a model, projection parameters associated with a virtual camera that is unique for each vertex; mapping pixels from a two dimensional (2D) image to the vertices, such that each mapping of a pixel is based on the estimated respective virtual camera parameters; and texturing the portion of the mesh with corresponding mapped pixels wherein vertices on the textured portion are selected such that they are visible from a specified viewpoint associated with the 3D mesh.Type: GrantFiled: July 26, 2010Date of Patent: September 10, 2013Assignee: Technion R&D Foundation Ltd.Inventors: Yochay Tzur, Ayellet Tal
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Patent number: 8531457Abstract: The subject matter discloses a method of determining whether a point in a computerized image is visible from a viewpoint; said image is represented as a point cloud, the method comprising: performing inversion on a the vicinity of the point thus creating a computerized inversed object, each point in the vicinity of the point is related to a parallel point in the computerized inversed object and obtaining a convex hull of the inversed object; the point is likely to be visible from the viewpoint in case it belongs to the point set composing the convex hull. The method is also useful for shadow casting and for determining the location of an image-capturing device within a volume.Type: GrantFiled: May 24, 2009Date of Patent: September 10, 2013Assignee: Technion Research and Development Foundation Ltd.Inventors: Sagi Katz, Ayellet Tal
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Publication number: 20110267345Abstract: The subject matter discloses a method of determining whether a point in a computerized image is visible from a viewpoint; said image is represented as a point cloud, the method comprising: performing inversion on a the vicinity of the point thus creating a computerized inversed objects each point in the vicinity of the point is related to a parallel point in the computerized inversed object and obtaining a convex hull of the inversed object; the point is likely to be visible from the viewpoint in case it belongs to the point set composing the convex hull.Type: ApplicationFiled: May 24, 2009Publication date: November 3, 2011Applicant: TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LTDInventors: Sagi KATZ, Ayellet Tal
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Publication number: 20110025690Abstract: A method for photogrammetric texture mapping using casual images is provided. The method may include the following steps: estimating, for each vertex of at least a portion of a three dimensional (3D) mesh representing a model, projection parameters associated with a virtual camera that is unique for each vertex; mapping pixels from a two dimensional (2D) image to the vertices, such that each mapping of a pixel is based on the estimated respective virtual camera parameters; and texturing the portion of the mesh with corresponding mapped pixels wherein vertices on the textured portion are selected such that they are visible from a specified viewpoint associated with the 3D mesh.Type: ApplicationFiled: July 26, 2010Publication date: February 3, 2011Applicant: TECHNION RESEARCH & DEVELOPMENT FOUNDATION LTD.Inventors: Yochay TZUR, Ayellet TAL
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Publication number: 20100322521Abstract: A computerized method of image processing to form a collage within a predetermined outline from a plurality of images, the method comprising: processing each image to assign a saliency measure to each pixel, said processing utilizing a dissimilarity measure which combines an appearance component and a distance component; finding a first patch of said image and comparing with other patches at different distances from said first patch using said dissimilarity measure, thereby to obtain a score; applying to each pixel of said first patch said obtained score; continuing said comparing and scoring with additional patches of said image until each pixel obtains a score; from said scored pixels providing for each image a region of interest, by setting an initial boundary that encloses a predetermined set of highest scored pixels, and propagating a curve around said initial boundary in such a way as to minimize length and maximize included saliency; and combining said regions of interest into said collage by: orderingType: ApplicationFiled: June 22, 2010Publication date: December 23, 2010Applicant: Technion Research & Development Foundation Ltd.Inventors: Ayellet TAL, Lihi Zelnik-Manor, Stas Goferman
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Publication number: 20100295850Abstract: The subject matter discloses a method of determining whether a point in a computerized image is visible from a viewpoint; said image is represented as a point cloud, the method comprising: performing inversion on a the vicinity of the point thus creating a computerized inversed objects each point in the vicinity of the point is related to a parallel point in the computerized inversed object and obtaining a convex hull of the inversed object; the point is likely to be visible from the viewpoint in case it belongs to the point set composing the convex hull.Type: ApplicationFiled: May 24, 2009Publication date: November 25, 2010Applicant: TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LTDInventors: Sagi KATZ, Ayellet Tal
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Publication number: 20050187898Abstract: A lookup architecture is herein disclosed that can support constant time queries within modest space requirements while encoding arbitrary functions and supporting dynamic updates.Type: ApplicationFiled: August 2, 2004Publication date: August 25, 2005Applicant: NEC Laboratories America, Inc.Inventors: Bernard Chazelle, Joseph Kilian, Ronitt Rubinfeld, Ayellet Tal