Patents by Inventor Lohit Dev Petikam

Lohit Dev Petikam 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).

  • Patent number: 11055830
    Abstract: A rendering process and system that may be used to composite virtual objects in panoramic video to provide a virtual reality and augmented reality experience. The process includes receiving low dynamic range (LDR) video data, e.g. 360° video; generating radiance maps, such as diffuse and specular maps, from the LDR data; inverse tone mapping the LDR data of the maps to generate high dynamic range (HDR) data for the maps; and receiving at least one virtual object and applying image based lighting (IBL) to the virtual object using the HDR data of the maps. A perceptually based threshold is also applied to radiance maps to detect prominent pixels, and using the prominent pixels as salient lights for image based shadowing (IBS) associated the virtual object. Objects are composited 360° video in real time using IBL and IBS without precomputation allowing user interaction with the objects.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: July 6, 2021
    Assignee: Victoria Link Limited
    Inventors: Tae Hyun Rhee, Andrew Chalmers, Benjamin Peter Allen, Thomas Manu Iorns, Lohit Dev Petikam
  • Publication number: 20190272626
    Abstract: A rendering process and system that may be used to composite virtual objects in panoramic video to provide a virtual reality and augmented reality experience. The process includes receiving low dynamic range (LDR) video data, e.g. 360° video; generating radiance maps, such as diffuse and specular maps, from the LDR data; inverse tone mapping the LDR data of the maps to generate high dynamic range (HDR) data for the maps; and receiving at least one virtual object and applying image based lighting (IBL) to the virtual object using the HDR data of the maps. A perceptually based threshold is also applied to radiance maps to detect prominent pixels, and using the prominent pixels as salient lights for image based shadowing (IBS) associated the virtual object. Objects are composited 360° video in real time using IBL and IBS without precomputation allowing user interaction with the objects.
    Type: Application
    Filed: November 22, 2016
    Publication date: September 5, 2019
    Applicant: Victoria Link Limited
    Inventors: Tae Hyun Rhee, Andrew Chalmers, Benjamin Peter Allen, Thomas Manu Iorns, Lohit Dev Petikam