Patents by Inventor Alexandras Tourapis

Alexandras Tourapis 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).

  • Systems and methods for multi-layered frame compatible video delivery
    Patent number: 11044454
    Abstract: Multi-layered frame-compatible video delivery is described. Multi-layered encoding and decoding methods, comprising a base layer and at least one enhancement layer with reference processing, are provided. In addition, multi-layered encoding and decoding methods with inter-layer dependencies are described. Encoding and decoding methods that are capable of frame-compatible 3D video delivery are also described.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: June 22, 2021
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Athanasios Leontaris, Alexandras Tourapis, Peshala V. Pahalawatta, Kevin Stec, Walter Husak
  • Point cloud compression with closed-loop color conversion
    Patent number: 10867413
    Abstract: A system comprises an encoder configured to compress attribute information and/or spatial for a point cloud and/or a decoder configured to decompress compressed attribute and/or spatial information for the point cloud. To compress the attribute and/or spatial information, the encoder is configured to convert a point cloud into an image based representation. Also, the decoder is configured to generate a decompressed point cloud based on an image based representation of a point cloud. A closed-loop color conversion process is used to improve compression while taking into consideration distortion introduced throughout the point cloud compression process.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: December 15, 2020
    Assignee: Apple Inc.
    Inventors: Khaled Mammou, Yeping Su, David W. Singer, Alexandras Tourapis, Fabrice A. Robinet, Hsi-Jung Wu