Patents by Inventor Aggelos K. Katsaggelos
Aggelos K. Katsaggelos 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: 11798254Abstract: A system to process imaging data includes an imaging system configured to capture image data and event data of a scene, compress the image data and the event data, and transmit the compressed image data and compressed event data to a host. The host is operatively coupled to the imaging system, and includes a processor configured to perform object detection on the compressed image data and the compressed event data to identify one or more objects. The processor is also configured to perform object tracking on the one or more objects. The processor is also configured to predict one or more regions of interest for subsequent data capture based on the object detection and the object tracking. The processor is further configured to provide the one or more regions of interest to the imaging system to control capture of additional image data and additional event data by the imaging system.Type: GrantFiled: August 31, 2021Date of Patent: October 24, 2023Assignee: Northwestern UniversityInventors: Srutarshi Banerjee, Henry H. Chopp, Juan Gabriel Serra Pérez, Zihao Wang, Oliver Strider Cossairt, Aggelos K. Katsaggelos
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Publication number: 20230078011Abstract: A system for automatically labeling massive quantities of image report data includes a memory configured to store image data and metadata corresponding to the image data. The system also includes a processor operatively coupled to the memory and configured to apply a natural language processing algorithm to identify one or more characteristics of the image report data and the metadata. The processor is also configured to label the image report data based at least in part on the one or more identified characteristics to form a labeled dataset.Type: ApplicationFiled: September 13, 2022Publication date: March 16, 2023Inventors: Virginia Boyce Hill, Michael Alexander Iorga, Aggelos K. Katsaggelos, Todd B. Parrish
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Patent number: 11340057Abstract: A system to generate image representations includes a first objective that receives a first light beam emitted from a sample and a second objective that receives a second light beam emitted from the sample, where the first light beam and the second light beam have conjugate phase. The system also includes a first diffractive element to receive the first light beam and separate it into a first plurality of diffractive light beams that are spatially distinct, and a second diffractive element to receive the second light beam and separate it into a second plurality of diffractive light beams that are spatially distinct. The system further includes a detector that receives the first and second plurality of diffractive light beams. The first plurality of diffractive light beams and the second plurality of diffractive light beams are simultaneously directed and focused onto different portions of an image plane of the detector.Type: GrantFiled: June 21, 2019Date of Patent: May 24, 2022Assignees: Northwestern University, UChicago Argonne, LLC, The University of ChicagoInventors: Kuan He, Oliver Strider Cossairt, Aggelos K. Katsaggelos, Norbert Scherer, Mark Hereld
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Patent number: 11303793Abstract: An imaging system includes an event camera configured to capture a first image of a scene. The system also includes a shutter camera collocated with the event camera, where the shutter camera is configured to capture a second image of the scene. The system also includes a processor operatively coupled to the event camera and the shutter camera. The processor is configured to apply guided event filtering (GEF) on the first image and the second image. The processor is also configured to generate a third image based on filtering of the first image and the second image.Type: GrantFiled: April 12, 2021Date of Patent: April 12, 2022Assignees: Northwestern University, Peking UniversityInventors: Oliver Strider Cossairt, Boxin Shi, Zihao Wang, Peiqi Duan, Aggelos K. Katsaggelos, Tiejun Huang
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Publication number: 20220067417Abstract: A system to process imaging data includes an imaging system configured to capture image data and event data of a scene, compress the image data and the event data, and transmit the compressed image data and compressed event data to a host. The host is operatively coupled to the imaging system, and includes a processor configured to perform object detection on the compressed image data and the compressed event data to identify one or more objects. The processor is also configured to perform object tracking on the one or more objects. The processor is also configured to predict one or more regions of interest for subsequent data capture based on the object detection and the object tracking. The processor is further configured to provide the one or more regions of interest to the imaging system to control capture of additional image data and additional event data by the imaging system.Type: ApplicationFiled: August 31, 2021Publication date: March 3, 2022Inventors: Srutarshi Banerjee, Henry H. Chopp, Juan Gabriel Serra Pérez, Zihao Wang, Oliver Strider Cossairt, Aggelos K. Katsaggelos
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Patent number: 11222422Abstract: Systems, methods, and computer readable media for hyperspectral imaging are provided. An example hyperspectral imaging sensor system to identify item composition includes an imager to capture hyperspectral imaging data of one or more items with respect to a target. The example includes a sensor to be positioned with respect to the target to trigger capture of the image data by the imager based on a characteristic of the target. The example includes a processor to prepare the captured imaging data for analysis to at least: identify the one or more items; determine composition of the one or more items; calculate an energy intake associated with the one or more items; and classify the target based on the energy intake.Type: GrantFiled: March 9, 2018Date of Patent: January 11, 2022Assignee: Northwestern UniversityInventors: Nabil I. Alshurafa, Aggelos K. Katsaggelos, Oliver Strider Cossairt
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Publication number: 20210321052Abstract: An imaging system includes an event camera configured to capture a first image of a scene. The system also includes a shutter camera collocated with the event camera, where the shutter camera is configured to capture a second image of the scene. The system also includes a processor operatively coupled to the event camera and the shutter camera. The processor is configured to apply guided event filtering (GEF) on the first image and the second image. The processor is also configured to generate a third image based on filtering of the first image and the second image.Type: ApplicationFiled: April 12, 2021Publication date: October 14, 2021Inventors: Oliver Strider Cossairt, Boxin Shi, Zihao Wang, Peiqi Duan, Aggelos K. Katsaggelos, Tiejun Huang
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Publication number: 20210215472Abstract: A system to generate image representations includes a first objective that receives a first light beam emitted from a sample and a second objective that receives a second light beam emitted from the sample, where the first light beam and the second light beam have conjugate phase. The system also includes a first diffractive element to receive the first light beam and separate it into a first plurality of diffractive light beams that are spatially distinct, and a second diffractive element to receive the second light beam and separate it into a second plurality of diffractive light beams that are spatially distinct. The system further includes a detector that receives the first and second plurality of diffractive light beams. The first plurality of diffractive light beams and the second plurality of diffractive light beams are simultaneously directed and focused onto different portions of an image plane of the detector.Type: ApplicationFiled: June 21, 2019Publication date: July 15, 2021Inventors: Kuan He, Oliver Strider Cossairt, Aggelos K. Katsaggelos, Norbert Scherer, Mark Hereld
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Publication number: 20210150699Abstract: Systems and methods for automated detection and classification of objects in a fluid of a receptacle such as, for example, a soft-sided receptacle such as a flexible container. The automated detection may include initiating movement of the receptacle to move objects in the fluid contained by the receptacle. Sequential frames of image data may be recorded and processed to identify moving objects in the image data. In turn, at least one motion parameter of the objects may be determined and utilized to classify the object into at least one of a predetermined plurality of object classes. For example, the object classes may at least include a predetermined class corresponding to bubbles and a predetermined class corresponding to particles.Type: ApplicationFiled: December 23, 2020Publication date: May 20, 2021Inventors: Armin Kappeler, Aggelos K. Katsaggelos, Georgios Andrea Bertos, Kirk Andrew Ashline, Neal Anthony Zupec
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Patent number: 10878551Abstract: Systems and methods for automated detection and classification of objects in a fluid of a receptacle such as, for example, a soft-sided receptacle such as a flexible container. The automated detection may include initiating movement of the receptacle to move objects in the fluid contained by the receptacle. Sequential frames of image data may be recorded and processed to identify moving objects in the image data. In turn, at least one motion parameter of the objects may be determined and utilized to classify the object into at least one of a predetermined plurality of object classes. For example, the object classes may at least include a predetermined class corresponding to bubbles and a predetermined class corresponding to particles.Type: GrantFiled: January 27, 2015Date of Patent: December 29, 2020Assignees: Baxter International Inc., Baxter Healthcare SA, Northwestern UniversityInventors: Armin Kappeler, Aggelos K. Katsaggelos, Georgios Andrea Bertos, Kirk Andrew Ashline, Neal Anthony Zupec
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Patent number: 10571539Abstract: Using a plurality of distinct behavioral tasks conducted in a functional magnetic resonance imaging (fMRI) scanner, fMRI data acquired from one or more subjects performing working memory tasks can be used for diagnosing psychiatrics and neurological disorders. A classification algorithm can be used to determine a classification model, tune the model, and apply the model. An output indicative of a subject's clinical condition can then be provided and used to diagnose new cases.Type: GrantFiled: June 12, 2015Date of Patent: February 25, 2020Assignee: Northwestern UniversityInventors: Reuven Hammer, James R. Booth, Reza Borhani, Aggelos K. Katsaggelos
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Publication number: 20200005455Abstract: Systems, methods, and computer readable media for hyperspectral imaging are provided. An example hyperspectral imaging sensor system to identify item composition includes an imager to capture hyperspectral imaging data of one or more items with respect to a target. The example includes a sensor to be positioned with respect to the target to trigger capture of the image data by the imager based on a characteristic of the target. The example includes a processor to prepare the captured imaging data for analysis to at least: identify the one or more items; determine composition of the one or more items; calculate an energy intake associated with the one or more items; and classify the target based on the energy intake.Type: ApplicationFiled: September 9, 2019Publication date: January 2, 2020Inventors: Nabil I. Alshurafa, Aggelos K. Katsaggelos, Oliver Strider Cossairt
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Patent number: 9875386Abstract: Object recognition can be improved by verifying a geometric consistency between matching interesting points pairs of two images, as objects with the images are more likely to match when the matching interesting points pairs are geometrically consistent. The geometric consistency between matching interesting points pairs can be verified in accordance with a topology code distance vector (D). The topology code distance vector (D) may be evaluated in accordance with a decision tree classifier, which may be trained in accordance with previous or historic topology code distance vectors. The topology code distance vector (D) may be computed from a subset of matching interesting points pairs having the shortest matching distance.Type: GrantFiled: November 14, 2012Date of Patent: January 23, 2018Assignee: Futurewei Technologies, Inc.Inventors: Xin Xin, Zhu Li, Aggelos K. Katsaggelos
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Publication number: 20170123028Abstract: Using a plurality of distinct behavioral tasks conducted in a functional magnetic resonance imaging (fMRI) scanner, fMRI data acquired from one or more subjects performing working memory tasks can be used for diagnosing psychiatrics and neurological disorders. A classification algorithm can be used to determine a classification model, tune the model, and apply the model. An output indicative of a subject's clinical condition can then be provided and used to diagnose new cases.Type: ApplicationFiled: June 12, 2015Publication date: May 4, 2017Applicant: Northwestern UniversityInventors: Rubi Hammer, James R. Booth, Reza Borhani, Aggelos K. Katsaggelos
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Publication number: 20150213616Abstract: Systems and methods for automated detection and classification of objects in a fluid of a receptacle such as, for example, a soft-sided receptacle such as a flexible container. The automated detection may include initiating movement of the receptacle to move objects in the fluid contained by the receptacle. Sequential frames of image data may be recorded and processed to identify moving objects in the image data. In turn, at least one motion parameter of the objects may be determined and utilized to classify the object into at least one of a predetermined plurality of object classes. For example, the object classes may at least include a predetermined class corresponding to bubbles and a predetermined class corresponding to particles.Type: ApplicationFiled: January 27, 2015Publication date: July 30, 2015Inventors: Armin Kappeler, Aggelos K. Katsaggelos, Georgios Andrea Bertos, Kirk Andrew Ashline, Neal Anthony Zupec
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Patent number: 8948518Abstract: A system and a method for progressive queries, which are a sequence of queries for visual search of an image, sent from a sender to a receiver of a communication network, are disclosed. Queries based on a set of feature points and their associated locations of an image may be selected in sequence. A sender sends a first query to a receiver, wherein the first query comprises a number of feature points which is a subset of the set of feature points of the image invariant to rotation and scaling in creating the image. The sender receives a feedback from the receiver, wherein the feedback is generated by the receiver based on searching an image repository using information from the first query. The sender then decides whether there is a match of the image in the image repository based on the received feedback.Type: GrantFiled: December 29, 2011Date of Patent: February 3, 2015Assignee: FutureWei Technologies, Inc.Inventors: Xin Xin, Zhu Li, Aggelos K. Katsaggelos
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Patent number: 8755605Abstract: A method and an apparatus for processing an image generates, using a linear embedding operator, a second set of feature points from a first set of feature points of the image, so that a pair-wise nearest neighbor (NN) topological relationship among the first set of feature points is preserved in the second set of feature points. The linear embedding operator is determined by an affinity model comprising a first affinity parameter, a second affinity parameter, and an affinity matrix, wherein a sparsity of the affinity matrix is controlled by the first affinity parameter and the second affinity parameter.Type: GrantFiled: December 29, 2011Date of Patent: June 17, 2014Assignee: Futurewei Technologies, Inc.Inventors: Xin Xin, Zhu Li, Aggelos K. Katsaggelos
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Patent number: 8718378Abstract: A method and an apparatus for processing an image generate a first vector of a first number dimension for the image from a first number of points of the image based on topological information of the first number of points, and the first vector for the image is invariant to rotation and scaling in creating the image. The first number of points may be locations of a set of rotation and scaling invariant feature points for the image, and the generated first vector may be a graph spectrum of a pair-wise distance matrix generated from the first number of points of the image.Type: GrantFiled: December 29, 2011Date of Patent: May 6, 2014Assignee: FutureWei Technologies, Inc.Inventors: Zhu Li, Xin Xin, Aggelos K. Katsaggelos
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Publication number: 20130142439Abstract: A system and a method for progressive queries, which are a sequence of queries for visual search of an image, sent from a sender to a receiver of a communication network, are disclosed. Queries based on a set of feature points and their associated locations of an image may be selected in sequence. A sender sends a first query to a receiver, wherein the first query comprises a number of feature points which is a subset of the set of feature points of the image invariant to rotation and scaling in creating the image. The sender receives a feedback from the receiver, wherein the feedback is generated by the receiver based on searching an image repository using information from the first query. The sender then decides whether there is a match of the image in the image repository based on the received feedback.Type: ApplicationFiled: December 29, 2011Publication date: June 6, 2013Applicant: FutureWei Technologies, Inc.Inventors: Xin Xin, Zhu Li, Aggelos K. Katsaggelos
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Publication number: 20130016912Abstract: A method and an apparatus for processing an image generate a first vector of a first number dimension for the image from a first number of points of the image based on topological information of the first number of points, and the first vector for the image is invariant to rotation and scaling in creating the image. The first number of points may be locations of a set of rotation and scaling invariant feature points for the image, and the generated first vector may be a graph spectrum of a pair-wise distance matrix generated from the first number of points of the image.Type: ApplicationFiled: December 29, 2011Publication date: January 17, 2013Applicant: FutureWei Technologies, Inc.Inventors: Zhu Li, Xin Xin, Aggelos K. Katsaggelos