Patents by Inventor Iason Kokkinos

Iason Kokkinos 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: 20240127563
    Abstract: Methods and systems are disclosed for performing real-time stylizing operations. The system receives an image that includes a depiction of a whole body of a real-world person. The system applies a machine learning model to the image to generate a stylized version of the whole body of the real-world person corresponding to a given style, the machine learning model being trained using training data to establish a relationship between a plurality of training images depicting synthetically rendered whole bodies of persons and corresponding ground-truth stylized versions of the whole bodies of the persons of the given style. The system replaces the depiction of the whole body of the real-world person in the image with the generated stylized version of the whole body of the real-world person.
    Type: Application
    Filed: October 17, 2022
    Publication date: April 18, 2024
    Inventors: Mohammad Rami Koujan, Iason Kokkinos
  • Patent number: 11915365
    Abstract: Aspects of the present disclosure involve a system and a method for performing operations comprising: receiving a plurality of bone scale coefficients each corresponding to respective bones of a skeleton model; receiving a plurality of joint angle coefficients that collectively define a pose for the skeleton model; generating the skeleton model based on the received bone scale coefficients and the received joint angle coefficients; generating a base surface based on the plurality of bone scale coefficients; generating an identity surface by deformation of the base surface; and generating the 3D body model by mapping the identity surface onto the posed skeleton model.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: February 27, 2024
    Assignee: Snap Inc.
    Inventors: Riza Alp Guler, Haoyang Wang, Iason Kokkinos, Stefanos Zafeiriou
  • Publication number: 20240029280
    Abstract: This disclosure relates to reconstructing three-dimensional models of objects from two-dimensional images. According to a first aspect, this specification describes a computer implemented method for creating a three-dimensional reconstruction from a two-dimensional image, the method comprising: receiving a two-dimensional image; identifying an object in the image to be reconstructed and identifying a type of said object; spatially anchoring a pre-determined set of object landmarks within the image; extracting a two-dimensional image representation from each object landmark; estimating a respective three-dimensional representation for the respective two-dimensional image representations; and combining the respective three-dimensional representations resulting in a fused three-dimensional representation of the object.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 25, 2024
    Inventors: Riza Alp Guler, Iason Kokkinos
  • Publication number: 20240029382
    Abstract: Aspects of the present disclosure involve a system for presenting AR items. The system performs operations including: receiving an image that includes a depiction of a first real-world body part in a real-world environment; applying a machine learning technique to the image to generate a plurality of dense outputs each associated with a respective pixel of a plurality of pixels in the image; applying a first task-specific decoder to the plurality of dense outputs to identify a pixel corresponding to a center of the first real-world body part; applying a second task-specific decoder using the identified pixel to retrieve a 3D rotation, translation and scale of first real-world body part from the plurality of dense outputs; modifying an AR object based on the 3D rotation, translation, and scale of first real-world body part; and modifying the image to include a depiction of the modified AR object.
    Type: Application
    Filed: October 4, 2023
    Publication date: January 25, 2024
    Inventors: Daniel Monteiro Stoddart, Efstratios Skordos, Iason Kokkinos
  • Patent number: 11823346
    Abstract: Aspects of the present disclosure involve a system for presenting AR items. The system performs operations including: receiving an image that includes a depiction of a first real-world body part in a real-world environment; applying a machine learning technique to the image to generate a plurality of dense outputs each associated with a respective pixel of a plurality of pixels in the image; applying a first task-specific decoder to the plurality of dense outputs to identify a pixel corresponding to a center of the first real-world body part; applying a second task-specific decoder using the identified pixel to retrieve a 3D rotation, translation and scale of first real-world body part from the plurality of dense outputs; modifying an AR object based on the 3D rotation, translation, and scale of first real-world body part; and modifying the image to include a depiction of the modified AR object.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: November 21, 2023
    Assignee: Snap Inc.
    Inventors: Daniel Monteiro Stoddart, Efstratios Skordos, Iason Kokkinos
  • Patent number: 11816850
    Abstract: This disclosure relates to reconstructing three-dimensional models of objects from two-dimensional images. According to a first aspect, this specification describes a computer implemented method for creating a three-dimensional reconstruction from a two-dimensional image, the method comprising: receiving a two-dimensional image; identifying an object in the image to be reconstructed and identifying a type of said object; spatially anchoring a pre-determined set of object landmarks within the image; extracting a two-dimensional image representation from each object landmark; estimating a respective three-dimensional representation for the respective two-dimensional image representations; and combining the respective three-dimensional representations resulting in a fused three-dimensional representation of the object.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: November 14, 2023
    Assignee: Snap Inc.
    Inventors: Riza Alp Guler, Iason Kokkinos
  • Publication number: 20230267687
    Abstract: Systems and methods for reconstructing 3D models of human bodies from 2D images that counts for perspective and/or distortion effects are provided. The systems and methods include reconstructing a three-dimensional model of an object in a three-dimensional scene from a two-dimensional image comprising an image of the object. The systems and methods include determining an absolute depth of a key point of the object in the image; determining, using the absolute depth of the key point, a three-dimensional position of the key point in the three-dimensional scene; generating, using a neural network, a three-dimensional representation of the object, the three-dimensional representation comprising mesh nodes defined in a coordinate system relative to the key point; and positioning the three-dimensional representation of the object in the scene based on the position of the key point by applying a position dependent rotation to the three-dimensional object.
    Type: Application
    Filed: May 2, 2023
    Publication date: August 24, 2023
    Inventors: Georgios Papandreou, Iason Kokkinos
  • Publication number: 20230230332
    Abstract: Aspects of the present disclosure involve a system for presenting AR items. The system performs operations including: receiving an image that includes a depiction of a first real-world body part in a real-world environment; applying a machine learning technique to the image to generate a plurality of dense outputs each associated with a respective pixel of a plurality of pixels in the image; applying a first task-specific decoder to the plurality of dense outputs to identify a pixel corresponding to a center of the first real-world body part; applying a second task-specific decoder using the identified pixel to retrieve a 3D rotation, translation and scale of first real-world body part from the plurality of dense outputs; modifying an AR object based on the 3D rotation, translation, and scale of first real-world body part; and modifying the image to include a depiction of the modified AR object.
    Type: Application
    Filed: March 9, 2022
    Publication date: July 20, 2023
    Inventors: Daniel Monteiro Stoddart, Efstratios Skordos, Iason Kokkinos
  • Patent number: 11688136
    Abstract: Systems and methods for reconstructing 3D models of human bodies from 2D images that counts for perspective and/or distortion effects are provided. The systems and methods include reconstructing a three-dimensional model of an object in a three-dimensional scene from a two-dimensional image comprising an image of the object. The systems and methods include determining an absolute depth of a key point of the object in the image; determining, using the absolute depth of the key point, a three-dimensional position of the key point in the three-dimensional scene; generating, using a neural network, a three-dimensional representation of the object, the three-dimensional representation comprising mesh nodes defined in a coordinate system relative to the key point; and positioning the three-dimensional representation of the object in the scene based on the position of the key point by applying a position dependent rotation to the three-dimensional object.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: June 27, 2023
    Assignee: SNAP INC.
    Inventors: Georgios Papandreou, Iason Kokkinos
  • Publication number: 20220375247
    Abstract: Aspects of the present disclosure involve a system and a method for performing operations comprising: receiving a two-dimensional continuous surface representation of a three-dimensional object, the continuous surface comprising a plurality of landmark locations; determining a first set of soft membership functions based on a relative location of points in the two-dimensional continuous surface representation and the landmark locations; receiving a two-dimensional input image, the input image comprising an image of the object; extracting a plurality of features from the input image using a feature recognition model; generating an encoded.
    Type: Application
    Filed: July 15, 2022
    Publication date: November 24, 2022
    Inventors: Iason Kokkinos, Georgios Papandreou, Riza Alp Guler
  • Publication number: 20220358770
    Abstract: This specification relates to reconstructing three-dimensional (3D) scenes from two-dimensional (2D) images using a neural network. According to a first aspect of this specification, there is described a method for creating a three-dimensional reconstruction of a scene with multiple objects from a single two-dimensional image, the method comprising: receiving a single two-dimensional image; identifying all objects in the image to be reconstructed and identifying the type of said objects; estimating a three-dimensional representation of each identified object; estimating a three-dimensional plane physically supporting all three-dimensional objects; and positioning all three-dimensional objects in space relative to the supporting plane.
    Type: Application
    Filed: June 17, 2020
    Publication date: November 10, 2022
    Inventors: Riza Alp Guler, Georgios Papandreou, Iason Kokkinos
  • Patent number: 11430247
    Abstract: Aspects of the present disclosure involve a system and a method for performing operations comprising: receiving a two-dimensional continuous surface representation of a three-dimensional object, the continuous surface comprising a plurality of landmark locations; determining a first set of soft membership functions based on a relative location of points in the two-dimensional continuous surface representation and the landmark locations; receiving a two-dimensional input image, the input image comprising an image of the object; extracting a plurality of features from the input image using a feature recognition model; generating an encoded feature representation of the extracted features using the first set of soft membership functions; generating a dense feature representation of the extracted features from the encoded representation using a second set of soft membership functions; and processing the second set of soft membership functions and dense feature representation using a neural image decoder model to
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: August 30, 2022
    Assignee: Snap Inc.
    Inventors: Iason Kokkinos, Georgios Papandreou, Riza Alp Guler
  • Publication number: 20210398351
    Abstract: Systems and methods for reconstructing 3D models of human bodies from 2D images that counts for perspective and/or distortion effects are provided. The systems and methods include reconstructing a three-dimensional model of an object in a three-dimensional scene from a two-dimensional image comprising an image of the object. The systems and methods include determining an absolute depth of a key point of the object in the image; determining, using the absolute depth of the key point, a three-dimensional position of the key point in the three-dimensional scene; generating, using a neural network, a three-dimensional representation of the object, the three-dimensional representation comprising mesh nodes defined in a coordinate system relative to the key point; and positioning the three-dimensional representation of the object in the scene based on the position of the key point by applying a position dependent rotation to the three-dimensional object.
    Type: Application
    Filed: March 2, 2021
    Publication date: December 23, 2021
    Inventors: Georgios Papandreou, Iason Kokkinos
  • Publication number: 20210241522
    Abstract: This disclosure relates to reconstructing three-dimensional models of objects from two-dimensional images. According to a first aspect, this specification describes a computer implemented method for creating a three-dimensional reconstruction from a two-dimensional image, the method comprising: receiving a two-dimensional image; identifying an object in the image to be reconstructed and identifying a type of said object; spatially anchoring a pre-determined set of object landmarks within the image; extracting a two-dimensional image representation from each object landmark; estimating a respective three-dimensional representation for the respective two-dimensional image representations; and combining the respective three-dimensional representations resulting in a fused three-dimensional representation of the object.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 5, 2021
    Inventors: Riza Alp Guler, Iason Kokkinos
  • Publication number: 20210150197
    Abstract: Aspects of the present disclosure involve a system and a method for performing operations comprising: receiving a two-dimensional continuous surface representation of a three-dimensional object, the continuous surface comprising a plurality of landmark locations; determining a first set of soft membership functions based on a relative location of points in the two-dimensional continuous surface representation and the landmark locations; receiving a two-dimensional input image, the input image comprising an image of the object; extracting a plurality of features from the input image using a feature recognition model; generating an encoded feature representation of the extracted features using the first set of soft membership functions; generating a dense feature representation of the extracted features from the encoded representation using a second set of soft membership functions; and processing the second set of soft membership functions and dense feature representation using a neural image decoder model to
    Type: Application
    Filed: November 13, 2020
    Publication date: May 20, 2021
    Inventors: Iason Kokkinos, Georgios Papandreou, Riza Alp Guler
  • Publication number: 20210150806
    Abstract: Aspects of the present disclosure involve a system and a method for performing operations comprising: receiving a plurality of bone scale coefficients each corresponding to respective bones of a skeleton model; receiving a plurality of joint angle coefficients that collectively define a pose for the skeleton model; generating the skeleton model based on the received bone scale coefficients and the received joint angle coefficients; generating a base surface based on the plurality of bone scale coefficients; generating an identity surface by deformation of the base surface; and generating the 3D body model by mapping the identity surface onto the posed skeleton model.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 20, 2021
    Inventors: Riza Alp Guler, Haoyang Wang, Iason Kokkinos, Stefanos Zafeiriou