Patents by Inventor Sharathchandra U. Pankanti

Sharathchandra U. Pankanti 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: 20180060673
    Abstract: A computer implemented method for detecting an object in a crowded scene utilizing an image capturing device. The method includes receiving an image of a predetermined area. From the image, the existence of selected portions as representing an entity of a selected class is determined. Each selected portion is assigned an initial confidence value that the selected portion is an entity representative of a selected class. Each selected portion is evaluated with each other to determine a context confidence value. The context confidence value and initial confidence value are utilized to determine which of the one or more selected portions are entities of a selected class.
    Type: Application
    Filed: November 15, 2017
    Publication date: March 1, 2018
    Inventors: Quanfu Fan, Jingjing Liu, Sharathchandra U. Pankanti
  • Publication number: 20180060694
    Abstract: A similarity detection system receiving a plurality of input entities, the system including a cohesive subgraph identification device configured to calculate, based on attributes of the plurality of input entities, a first parameter and a second parameter based on the first parameter, and further configured to identify a plurality of subgraphs from the second parameter and a subgraph correlation tracking and clustering device configured to determine a relationship between different subgraphs based on a similarity factor between the second parameter and the plurality of subgraphs.
    Type: Application
    Filed: October 24, 2017
    Publication date: March 1, 2018
    Inventors: Yu Cheng, Sharathchandra U. Pankanti, Nalini K. Ratha
  • Publication number: 20180060695
    Abstract: A face clustering system for video face clustering in a video sequence, the system including an inherent supervision summarization device configured to collect group-level supervision and instance level supervision within a same chunklet based on a user input of face images for a person, a discriminative projection learning device configured to embed group constraints of the group-level supervision into a transformed space, and configured to generate an embedding space from the original image feature space, and a clustering device, in the embedding space, configured to execute pair-wise based clustering to cluster the video images into different clusters with the instance level supervision collected by the inherent supervision summarization device.
    Type: Application
    Filed: October 24, 2017
    Publication date: March 1, 2018
    Inventors: Yu Cheng, Sharathchandra U. Pankanti, Nalini K. Ratha
  • Patent number: 9892326
    Abstract: A computer implemented method for detecting an object in a crowded scene utilizing an image capturing device. The method includes receiving an image of a predetermined area. From the image, the existence of selected portions as representing an entity of a selected class is determined. Each selected portion is assigned an initial confidence value that the selected portion is an entity representative of a selected class. Each selected portion is evaluated with each other to determine a context confidence value. The context confidence value and initial confidence value are utilized to determine which of the one or more selected portions are entities of a selected class.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: February 13, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Quanfu Fan, Jingjing Liu, Sharathchandra U. Pankanti
  • Patent number: 9885568
    Abstract: A camera at a fixed vertical height positioned above a reference plane, with an axis of a camera lens at an acute angle with respect to a perpendicular of the reference plane. One or more processors receive camera images of a multiplicity of people of unknown height and vertical axis of the images are transformed into pixel counts. The known heights of people from a known statistical distribution of heights of people are received by one or more processors and transformed to a normalized measurement of pixel counts, based in part on a focal length of the camera lens, the angle of the camera, and an objective function summing differences between pixel counts of the known heights of people and the unknown heights of people. The fixed vertical height of the camera is determined by adjusting the estimated camera height to minimize the objective function.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: February 6, 2018
    Assignee: International Business Machines Corporation
    Inventors: Ankur Datta, Rogerio S. Feris, Sharathchandra U. Pankanti, Yun Zhai
  • Patent number: 9870503
    Abstract: A method of operating an image detection device includes receiving an image, dividing the image into a plurality of patches, grouping ones of the plurality of patches, generating a set of saccadic paths through the plurality of patches of the image, generating a cluster-direction sequence for each saccadic path, generating a policy function for identifying an object in a new image using a combination of the cluster-direction sequences, and operating the image detection device using the policy function to identify an object in the new image.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: January 16, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ban Kawas, Arvind Kumar, Janusz Marecki, Sharathchandra U. Pankanti
  • Patent number: 9852359
    Abstract: A similarity detection system receiving a plurality of input entities, the system including a cohesive subgraph identification device configured to calculate, based on attributes of the plurality of input entities, a first parameter and a second parameter based on the first parameter, and further configured to identify a plurality of subgraphs from the second parameter and a subgraph correlation tracking and clustering device configured to determine a relationship between different subgraphs based on a similarity factor between the second parameter and the plurality of subgraphs.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: December 26, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yu Cheng, Sharathchandra U. Pankanti, Nalini K. Ratha
  • Publication number: 20170352159
    Abstract: A method includes obtaining two-dimensional measurements of a given scene from sensors, the given scene comprising a plurality of scene points, distributing the given scene into bundles each associated with at least one sensor and at least one scene point, establishing constraints associated with the sensors and the plurality of scene points that are associated with two different bundles, estimating, individually for each of the bundles, a set of parameters for the at least one sensor and the at least one scene point associated with that bundle utilizing at least one of the two-dimensional measurements, generating a consensus parameter set for the one or more sensors and the plurality of scene points based on the estimated parameter sets, the established constraints being utilized to reconcile differences in parameter values in the estimated parameter sets, and producing a three-dimensional representation of the given scene utilizing the consensus parameter set.
    Type: Application
    Filed: June 1, 2016
    Publication date: December 7, 2017
    Inventors: Aleksandr Y. Aravkin, Chung-Ching Lin, Karthikeyan N. Ramamurthy, Sharathchandra U. Pankanti, Raphael Viguier
  • Publication number: 20170345143
    Abstract: Embodiments include method, systems and computer program products for reducing surface reflectance, for example in a photograph. Aspects include receiving an image set containing a plurality of images of an object. Aspects also include determining geometric transformations for the images and constructing a panorama of the object from the images using the geometric transformations. Aspects also include replacing a portion in the panorama with a corresponding replacement portion from the image set.
    Type: Application
    Filed: May 25, 2016
    Publication date: November 30, 2017
    Inventors: Noel C. Codella, Chung-Ching Lin, Sharathchandra U. Pankanti, Nalini K. Ratha
  • Patent number: 9811761
    Abstract: A face clustering system for video face clustering in a video sequence, the system including an inherent supervision summarization device configured to collect group-level supervision and instance level supervision within a same chunklet based on a user input of face images for a person, a discriminative projection learning device configured to embed group constraints of the group-level supervision into a transformed space, and configured to generate an embedding space from the original image feature space, and a clustering device, in the embedding space, configured to execute pair-wise based clustering to cluster the video images into different clusters with the instance level supervision collected by the inherent supervision summarization device.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: November 7, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yu Cheng, Sharathchandra U. Pankanti, Nalini K. Ratha
  • Publication number: 20170301119
    Abstract: A method and system of stitching a plurality of image views of a scene, including grouping matched points of interest in a plurality of groups, and determining a similarity transformation with smallest rotation angle for each grouping of the matched points. The method further includes generating virtual matching points on non-overlapping area of the plurality of image views and generating virtual matching points on overlapping area for each of the plurality of image views.
    Type: Application
    Filed: February 10, 2017
    Publication date: October 19, 2017
    Inventors: Chung-Ching Lin, Sharathchandra U. Pankanti, Karthikeyan Natesan Ramamurthy, Aleksandr Y. Aravkin, John R. Smith
  • Publication number: 20170286809
    Abstract: Technical solutions are described for training an object-recognition neural network that identifies an object in a computer-readable image. An example method includes assigning a first neural network for determining a visual alignment model of the images for determining a normalized alignment of the object. The method further includes assigning a second neural network for determining a visual representation model of the images for recognizing the object. The method further includes determining the visual alignment model by training the first neural network and determining the visual representation model by training the second neural network independent of the first. The method further includes determining a combined object recognition model by training a combination of the first neural network and the second neural network. The method further includes recognizing the object in the image based on the combined object recognition model by passing the image through each of the neural networks.
    Type: Application
    Filed: April 4, 2016
    Publication date: October 5, 2017
    Inventors: Sharathchandra U. Pankanti, Xi Peng, Nalini K. Ratha
  • Publication number: 20170286779
    Abstract: A computer implemented method for detecting an object in a crowded scene utilizing an image capturing device. The method includes receiving an image of a predetermined area. From the image, the existence of selected portions as representing an entity of a selected class is determined. Each selected portion is assigned an initial confidence value that the selected portion is an entity representative of a selected class. Each selected portion is evaluated with each other to determine a context confidence value. The context confidence value and initial confidence value are utilized to determine which of the one or more selected portions are entities of a selected class.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 5, 2017
    Inventors: Quanfu Fan, Jingjing Liu, Sharathchandra U. Pankanti
  • Patent number: 9754178
    Abstract: Software for static object detection that performs the following operations: (i) detecting an object that is present in at least one image of a set of images, wherein the set of images correspond to a time period; (ii) identifying a set of corner points for the detected object; (iii) tracking the object's presence in the set of images over the time period, wherein the object's presence is determined by matching the set of images to a template generated based on the identified corner points; and (iv) identifying the object as a static object when an amount of time corresponding to the object's presence in the set of images is greater than a predefined threshold.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: September 5, 2017
    Assignee: International Business Machines Corporation
    Inventors: Quanfu Fan, Zuoxuan Lu, Sharathchandra U. Pankanti
  • Patent number: 9710924
    Abstract: Field of view overlap among multiple cameras are automatically determined as a function of the temporal overlap of object tracks determined within their fields-of-view. Object tracks with the highest similarity value are assigned into pairs, and portions of the assigned object track pairs having a temporally overlapping period of time are determined. Scene entry points are determined from object locations on the tracks at a beginning of the temporally overlapping period of time, and scene exit points from object locations at an ending of the temporally overlapping period of time. Boundary lines for the overlapping fields-of-view portions within the corresponding camera fields-of-view are defined as a function of the determined entry and exit points in their respective fields-of-view.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: July 18, 2017
    Assignee: International Business Machines Corporation
    Inventors: Ankur Datta, Rogerio S. Feris, Sharathchandra U. Pankanti, Yun Zhai
  • Publication number: 20170200051
    Abstract: An approach for re-identifying an object in a test image is presented. Similarity measures between the test image and training images captured by a first camera are determined. The similarity measures are based on Bhattacharyya distances between feature representations of an estimated background region of the test image and feature representations of background regions of the training images. A transformed test image based on the Bhattacharyya distances has a brightness that is different from the test image's brightness, and matches a brightness of training images captured by a second camera. An appearance of the transformed test image resembles an appearance of a capture of the test image by the second camera. Another image included in test images captured by the second camera is identified as being closest in appearance to the transformed test image and another object in the identified other image is a re-identification of the object.
    Type: Application
    Filed: March 28, 2017
    Publication date: July 13, 2017
    Inventors: Lisa M. Brown, Ankur Datta, Rogerio S. Feris, Sharathchandra U. Pankanti
  • Publication number: 20170193294
    Abstract: A method of operating an image detection device includes receiving an image, dividing the image into a plurality of patches, grouping ones of the plurality of patches, generating a set of saccadic paths through the plurality of patches of the image, generating a cluster-direction sequence for each saccadic path, generating a policy function for identifying an object in a new image using a combination of the cluster-direction sequences, and operating the image detection device using the policy function to identify an object in the new image.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: BAN KAWAS, ARVIND KUMAR, JANUSZ MARECKI, SHARATHCHANDRA U. PANKANTI
  • Patent number: 9633045
    Abstract: Images are retrieved and ranked according to relevance to attributes of a multi-attribute query through training image attribute detectors for different attributes annotated in a training dataset. Pair-wise correlations are learned between pairs of the annotated attributes from the training dataset of images. Image datasets may are searched via the trained attribute detectors for images comprising attributes in a multi-attribute query. The retrieved images are ranked as a function of comprising attributes that are not within the query subset plurality of attributes but are paired to one of the query subset plurality of attributes by the pair-wise correlations, wherein the ranking is an order of likelihood that the different ones of the attributes will appear in an image with the paired one of the query subset plurality of attributes.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: April 25, 2017
    Assignee: International Business Machines Corporation
    Inventors: Ankur Datta, Rogerio S. Feris, Sharathchandra U. Pankanti, Behjat Siddiquie
  • Patent number: 9633258
    Abstract: An approach that detects locations of hazardous conditions within an infrastructure is provided. This approach uses satellite imagery, GIS data, automatic image processing, and predictive modeling to determine the location of the hazards automatically, thus optimizing infrastructure management. Specifically, a hazard detection tool provides this capability. The hazard detection tool comprises a detection component configured to: receive visual media containing asset location data about a set of physical assets, and hazard location data about potential hazards within a vicinity of each of the set of physical assets. The detection component further receives graphical information system (GIS) data containing asset location data about each of the set of physical assets.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: April 25, 2017
    Assignee: International Business Machines Corporation
    Inventors: James R. Culp, Frank D. Fenhagen, IV, Arun Hampapur, Xuan Liu, Sharathchandra U. Pankanti
  • Patent number: 9633263
    Abstract: An approach for re-identifying an object in a first test image is presented. Brightness transfer functions (BTFs) between respective pairs of training images are determined. Respective similarity measures are determined between the first test image and each of the training images captured by the first camera (first training images). A weighted brightness transfer function (WBTF) is determined by combining the BTFs weighted by weights of the first training images. The weights are based on the similarity measures. The first test image is transformed by the WBTF to better match one of the training images captured by the second camera. Another test image, captured by the second camera, is identified because it is closer in appearance to the transformed test image than other test images captured by the second camera. An object in the identified test image is a re-identification of the object in the first test image.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: April 25, 2017
    Assignee: International Business Machines Corporation
    Inventors: Lisa M. Brown, Ankur Datta, Rogerio S. Feris, Sharathchandra U. Pankanti