Patents by Inventor Enrico Zschau

Enrico Zschau 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: 20200301362
    Abstract: A method for generating video holograms in real time for a holographic playback device comprising at least one light modulator means, into which a scene divided into object points is encoded as an entire hologram and can be seen as a reconstruction from a visibility region, which is located within a periodicity interval of the reconstruction of the video hologram, the visibility region defining a subhologram together with each object point of the scene to be reconstructed, and the entire hologram being generated from a superposition of contributions of subholograms, is characterized in that for each object point the contributions of the subholograms in the entire reconstruction of the scene can be determined from at least one look-up table.
    Type: Application
    Filed: June 8, 2020
    Publication date: September 24, 2020
    Inventors: Enrico ZSCHAU, Armin SCHWERDTNER, Bo KROLL, Alexander SCHWERDTNER
  • Patent number: 10678188
    Abstract: A method for generating video holograms in real time for a holographic playback device comprising at least one light modulator means, into which a scene divided into object points is encoded as an entire hologram and can be seen as a reconstruction from a visibility region, which is located within a periodicity interval of the reconstruction of the video hologram, the visibility region defining a subhologram together with each object point of the scene to be reconstructed, and the entire hologram being generated from a superposition of contributions of subholograms, is characterized in that for each object point the contributions of the subholograms in the entire reconstruction of the scene can be determined from at least one look-up table.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: June 9, 2020
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventors: Enrico Zschau, Armin Schwerdtner, Bo Kroll, Alexander Schwerdtner
  • Patent number: 10520889
    Abstract: Method for computing the code for the reconstruction of three-dimensional scenes which include objects which partly absorb light or sound. The method can be implemented in a computing unit. In order to reconstruct a three-dimensional scene as realistic as possible, the diffraction patterns are computed separately at their point of origin considering the instances of absorption in the scene. The method can be used for the representation of three-dimensional scenes in a holographic display or volumetric display. Further, it can be carried out to achieve a reconstruction of sound fields in an array of sound sources.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: December 31, 2019
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventors: Enrico Zschau, Nils Pfeifer
  • Publication number: 20190310585
    Abstract: An apparatus and a method for optimized calculation of 2D sub-holograms for object points of a three-dimensional scene and a pipeline for real-time calculation of holograms are provided. The invention shortens the calculation time of a hologram for representing a three-dimensional scene and/or to reduce the calculation complexity of such a hologram. This is achieved by a 2D sub-hologram of an object point, which has image elements of the spatial light modulator, comprises a half 1D sub-hologram, where the radius of each image element is determined and each image element of the 2D sub-hologram is fixedly assigned to at least one image element of the half 1D sub-hologram with identical or similar radius by way of an electronic circuit, by a method for encoding a hologram, and by a pipeline on the basis of FPGA and/or ASIC.
    Type: Application
    Filed: June 25, 2019
    Publication date: October 10, 2019
    Inventor: Enrico ZSCHAU
  • Patent number: 10353344
    Abstract: An apparatus and a method for optimized calculation of 2D sub-holograms for object points of a three-dimensional scene and a pipeline for real-time calculation of holograms are provided. The invention shortens the calculation time of a hologram for representing a three-dimensional scene and/or to reduce the calculation complexity of such a hologram. This is achieved by a 2D sub-hologram of an object point, which has image elements of the spatial light modulator, comprises a half 1D sub-hologram, where the radius of each image element is determined and each image element of the 2D sub-hologram is fixedly assigned to at least one image element of the half 1D sub-hologram with identical or similar radius by way of an electronic circuit, by a method for encoding a hologram, and by a pipeline on the basis of FPGA and/or ASIC.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: July 16, 2019
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventor: Enrico Zschau
  • Publication number: 20180259905
    Abstract: A method for generating video holograms in real time for a holographic playback device comprising at least one light modulator means, into which a scene divided into object points is encoded as an entire hologram and can be seen as a reconstruction from a visibility region, which is located within a periodicity interval of the reconstruction of the video hologram, the visibility region defining a subhologram together with each object point of the scene to be reconstructed, and the entire hologram being generated from a superposition of contributions of subholograms, is characterized in that for each object point the contributions of the subholograms in the entire reconstruction of the scene can be determined from at least one look-up table.
    Type: Application
    Filed: May 14, 2018
    Publication date: September 13, 2018
    Inventors: Enrico ZSCHAU, Armin SCHWERDTNER, Bo KROLL, Alexander SCHWERDTNER
  • Publication number: 20170038728
    Abstract: Method for computing the code for the reconstruction of three-dimensional scenes which include objects which partly absorb light or sound. The method can be implemented in a computing unit. In order to reconstruct a three-dimensional scene as realistic as possible, the diffraction patterns are computed separately at their point of origin considering the instances of absorption in the scene. The method can be used for the representation of three-dimensional scenes in a holographic display or volumetric display. Further, it can be carried out to achieve a reconstruction of sound fields in an array of sound sources.
    Type: Application
    Filed: August 19, 2016
    Publication date: February 9, 2017
    Inventors: Enrico ZSCHAU, Nils PFEIFER
  • Patent number: 9448532
    Abstract: Method for computing the code for the reconstruction of three-dimensional scenes which include objects which partly absorb light or sound. The method can be implemented in a computing unit. In order to reconstruct a three-dimensional scene as realistic as possible, the diffraction patterns are computed separately at their point of origin considering the instances of absorption in the scene. The method can be used for the representation of three-dimensional scenes in a holographic display or volumetric display. Further, it can be carried out to achieve a reconstruction of sound fields in an array of sound sources.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: September 20, 2016
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventors: Enrico Zschau, Nils Pfeifer
  • Publication number: 20160132021
    Abstract: An apparatus and a method for optimized calculation of 2D sub-holograms for object points of a three-dimensional scene and a pipeline for real-time calculation of holograms are provided. The invention shortens the calculation time of a hologram for representing a three-dimensional scene and/or to reduce the calculation complexity of such a hologram. This is achieved by a 2D sub-hologram of an object point, which has image elements of the spatial light modulator, comprises a half 1D sub-hologram, where the radius of each image element is determined and each image element of the 2D sub-hologram is fixedly assigned to at least one image element of the half 1D sub-hologram with identical or similar radius by way of an electronic circuit, by a method for encoding a hologram, and by a pipeline on the basis of FPGA and/or ASIC.
    Type: Application
    Filed: June 4, 2014
    Publication date: May 12, 2016
    Inventor: Enrico ZSCHAU
  • Patent number: 8477996
    Abstract: A method for finding and subsequently tracking the 3-D coordinates of a pair of eyes in at least one face, including receiving image data, which contains a sequence of at least one digital video signal of at least one image sensor, finding eyes or tracking previously found eyes in the image data, ascertaining the 3-D coordinates of the found or tracked eyes, associating the found or tracked eyes with a pair of eyes and providing the 3-D coordinates of the pair of eyes.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: July 2, 2013
    Assignee: Seereal Technologies S.A.
    Inventor: Enrico Zschau
  • Publication number: 20130022222
    Abstract: Method for computing the code for the reconstruction of three-dimensional scenes which include objects which partly absorb light or sound. The method can be implemented in a computing unit. In order to reconstruct a three-dimensional scene as realistic as possible, the diffraction patterns are computed separately at their point of origin considering the instances of absorption in the scene. The method can be used for the representation of three-dimensional scenes in a holographic display or volumetric display. Further, it can be carried out to achieve a reconstruction of sound fields in an array of sound sources.
    Type: Application
    Filed: April 1, 2011
    Publication date: January 24, 2013
    Applicant: SeeReal Technologies S.A.
    Inventors: Enrico Zschau, Nils Pfeifer
  • Patent number: 7950802
    Abstract: The invention relates to a method and to a circuit arrangement for recognising and for tracking, in a contact-free manner, eye positions of several users in real time. The input data comprises a sequence of digital video frames. Said method comprises the following steps: combining a face-finder-instance which is used to examine faces, an eye-finder-instance which is used to examine eye areas, and an eye-tracker-instance which is used to recognise and track eye reference points. The aim of the invention is to convert the eye positions within a hierarchical outlet of the instance to the target, which successively restricts the dataset, which is to be processed, emerging from the dataset of the entire video frame (VF) in order to form a face target area (GZ) and subsequently an eye target area (AZ). Also, an instance or a group of instances, which run in a parallel manner, are carried out, respectively, on a calculating unit thereof.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: May 31, 2011
    Assignee: SeeReal Technologies GmbH
    Inventors: Alexander Schwerdtner, Enrico Zschau
  • Publication number: 20100303294
    Abstract: A method for finding and subsequently tracking the 3-D coordinates of a pair of eyes in at least one face, including receiving image data, which contains a sequence of at least one digital video signal of at least one image sensor, finding eyes or tracking previously found eyes in the image data, ascertaining the 3-D coordinates of the found or tracked eyes, associating the found or tracked eyes with a pair of eyes and providing the 3-D coordinates of the pair of eyes.
    Type: Application
    Filed: November 12, 2008
    Publication date: December 2, 2010
    Applicant: SeeReal Technologies S.A.
    Inventor: Enrico Zschau
  • Publication number: 20100073744
    Abstract: A method for generating video holograms in real time for a holographic playback device comprising at least one light modulator means, into which a scene divided into object points is encoded as an entire hologram and can be seen as a reconstruction from a visibility region, which is located within a periodicity interval of the reconstruction of the video hologram, the visibility region defining a sub-hologram together with each object point of the scene to be reconstructed, and the entire hologram being generated from a superposition of contributions of sub-holograms, is characterized in that for each object point the contributions of the sub-holograms in the entire reconstruction of the scene can be determined from at least one look-up table.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 25, 2010
    Applicant: SeeReal Technologies S.A.
    Inventors: Enrico Zschau, Armin Schwerdtner, Bo Kroll