Patents by Inventor David Drezner

David Drezner 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: 11574443
    Abstract: A method and system for improving a three-dimensional (3D) representation of objects using semantic data. The method comprises receiving an input data generated in response to captured video in a filming area; setting at least one parameter for each region in the input data; and generating a 3D representation based in part on the at least one parameter and semantic data associated with the input data.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: February 7, 2023
    Assignee: Tetavi Ltd.
    Inventors: Michael Tamir, Gilad Talmon, Vsevolod Kagarlitsky, Shirley Keinan, David Drezner, Yair Baruch, Michael Birnboim
  • Patent number: 11265575
    Abstract: The invention relates to an image processing apparatus for compressing or decompressing a segment of an image. The segment includes a plurality of pixels, each pixel includes a pixel value and a pixel position defined by a first coordinate system. The pixel values of the plurality of pixels form a pixel value vector. The apparatus includes processing circuitry configured to compress and/or decompress the segment. Compressing the segment includes computing a plurality of expansion coefficients by expanding the pixel value vector into a plurality of basis vectors that are discrete approximations of solutions of a boundary value problem of the Helmholtz equation on the segment of the image in a second coordinate system rotated relative to the first coordinate system. Decompressing the segment includes computing the pixel value vector by forming a linear combination of the basis vectors using the plurality of expansion coefficients.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: March 1, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Itsik Dvir, Natan Peterfreund, Dror Irony, David Drezner, Ady Ecker, Amiram Allouche
  • Patent number: 11153564
    Abstract: There is provided an apparatus, methods, to generate a set of transform coefficients for coding a block in a frame or portion thereof, comprising: a media encoder coupled to a data interface adapted to receive a frame or portion thereof, the media encoder is adapted to: select a rotational symmetry mask for the block from a plurality of rotational symmetry masks which define a plurality of different rotational symmetries in a multi-dimensional space having a size and a shape as the block; split the block to two complementary portions based on the rotational symmetry mask; generate a pair of rotational symmetry blocks each having one of the two complementary portions; and compute at least one transform coefficient for at least one member of the pair of rotational symmetry blocks.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: October 19, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Itsik Dvir, Natan Peterfreund, Dror Irony, David Drezner
  • Publication number: 20210304495
    Abstract: A method and system for improving a three-dimensional (3D) representation of objects using semantic data. The method comprises receiving an input data generated in response to captured video in a filming area; setting at least one parameter for each region in the input data; and generating a 3D representation based in part on the at least one parameter and semantic data associated with the input data.
    Type: Application
    Filed: March 10, 2021
    Publication date: September 30, 2021
    Applicant: Tetavi Ltd.,
    Inventors: Michael TAMIR, Gilad TALMON, Vsevolod KAGARLITSKY, Shirley KEINAN, David DREZNER, Yair BARUCH, Michael BIRNBOIM
  • Publication number: 20200288165
    Abstract: The invention relates to an image processing apparatus for compressing or decompressing a segment of an image. The segment includes a plurality of pixels, each pixel includes a pixel value and a pixel position defined by a first coordinate system. The pixel values of the plurality of pixels form a pixel value vector. The apparatus includes processing circuitry configured to compress and/or decompress the segment. Compressing the segment includes computing a plurality of expansion coefficients by expanding the pixel value vector into a plurality of basis vectors that are discrete approximations of solutions of a boundary value problem of the Helmholtz equation on the segment of the image in a second coordinate system rotated relative to the first coordinate system. Decompressing the segment includes computing the pixel value vector by forming a linear combination of the basis vectors using the plurality of expansion coefficients.
    Type: Application
    Filed: May 21, 2020
    Publication date: September 10, 2020
    Inventors: Itsik DVIR, Natan PETERFREUND, Dror IRONY, David DREZNER, Ady ECKER, Amiram ALLOUCH
  • Patent number: 10742976
    Abstract: There is provided an apparatus, methods, to generate a set of transform coefficients for coding a block in a frame or portion thereof, comprising: a media encoder coupled to a data interface adapted to receive a frame or portion thereof, the media encoder is adapted to: select a rotational symmetry mask for the block from a plurality of rotational symmetry masks which define a plurality of different rotational symmetries in a multi dimensional space having a size and a shape as the block; split the block to two complementary portions based on the rotational symmetry mask; generate a pair of rotational symmetry blocks each having one of the two complementary portions; and compute at least one transform coefficient for at least one member of the pair of rotational symmetry blocks.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 11, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Itsik Dvir, Natan Peterfreund, Dror Irony, David Drezner
  • Publication number: 20200162732
    Abstract: There is provided an apparatus, methods, to generate a set of transform coefficients for coding a block in a frame or portion thereof, comprising: a media encoder coupled to a data interface adapted to receive a frame or portion thereof, the media encoder is adapted to: select a rotational symmetry mask for the block from a plurality of rotational symmetry masks which define a plurality of different rotational symmetries in a multi-dimensional space having a size and a shape as the block; split the block to two complementary portions based on the rotational symmetry mask; generate a pair of rotational symmetry blocks each having one of the two complementary portions; and compute at least one transform coefficient for at least one member of the pair of rotational symmetry blocks.
    Type: Application
    Filed: January 23, 2020
    Publication date: May 21, 2020
    Inventors: Itsik DVIR, Natan PETERFREUND, Dror IRONY, David DREZNER
  • Patent number: 10602186
    Abstract: There is provided an apparatus for generating a set of transform coefficients of a block in a frame or portion thereof. The apparatus includes a media encoder coupled to a data interface configured to receive a frame or portion thereof. The media encoder is configured to: designate a rotational symmetry mask having a size and a shape as the block partitioned in the frame or portion thereof for processing the block; split the block to two complementary portions using the rotational symmetry mask; generate a pair of rotational symmetry blocks each having one of the two complementary portions; and compute a transform coefficient for each member of the pair of rotational symmetry blocks.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: March 24, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Itsik Dvir, Natan Peterfreund, Dror Irony, David Drezner
  • Patent number: 10523951
    Abstract: An apparatus adapted, including a media encoder coupled to a data interface adapted to receive a frame or portion thereof. The media encoder is adapted to iteratively subdivide each block of a plurality of blocks partitioned in a frame or portion thereof and to process a subdivided block of the plurality of blocks, during each iteration of a plurality of iterations, by selecting a rotational symmetry mask fulfilling an efficiency measure for coding said block, the rotational symmetry mask selected from a plurality of rotational symmetry masks which define a plurality of different rotational symmetries in a multidimensional space, splitting the subdivided block to two complementary portions based on the rotational symmetry mask, generating a pair of rotational symmetry blocks each having one of said two complementary portions, and computing a plurality of transform coefficients from the pair of rotational symmetry blocks.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: December 31, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Itsik Dvir, Natan Peterfreund, Dror Irony, David Drezner
  • Publication number: 20170280144
    Abstract: An apparatus adapted, including a media encoder coupled to a data interface adapted to receive a frame or portion thereof. The media encoder is adapted to iteratively subdivide each block of a plurality of blocks partitioned in a frame or portion thereof and to process a subdivided block of the plurality of blocks, during each iteration of a plurality of iterations, by selecting a rotational symmetry mask fulfilling an efficiency measure for coding said block, the rotational symmetry mask selected from a plurality of rotational symmetry masks which define a plurality of different rotational symmetries in a multidimensional space, splitting the subdivided block to two complementary portions based on the rotational symmetry mask, generating a pair of rotational symmetry blocks each having one of said two complementary portions, and computing a plurality of transform coefficients from the pair of rotational symmetry blocks.
    Type: Application
    Filed: May 12, 2017
    Publication date: September 28, 2017
    Inventors: Itsik Dvir, Natan Peterfreund, Dror Irony, David Drezner
  • Publication number: 20170251227
    Abstract: There is provided an apparatus for generating a set of transform coefficients of a block in a frame or portion thereof. The apparatus includes a media encoder coupled to a data interface configured to receive a frame or portion thereof. The media encoder is configured to: designate a rotational symmetry mask having a size and a shape as the block partitioned in the frame or portion thereof for processing the block; split the block to two complementary portions using the rotational symmetry mask; generate a pair of rotational symmetry blocks each having one of the two complementary portions; and compute a transform coefficient for each member of the pair of rotational symmetry blocks.
    Type: Application
    Filed: May 12, 2017
    Publication date: August 31, 2017
    Inventors: Itsik Dvir, Natan Peterfreund, Dror Irony, David Drezner
  • Publication number: 20170251210
    Abstract: There is provided an apparatus, methods, to generate a set of transform coefficients for coding a block in a frame or portion thereof, comprising: a media encoder coupled to a data interface adapted to receive a frame or portion thereof, the media encoder is adapted to: select a rotational symmetry mask for the block from a plurality of rotational symmetry masks which define a plurality of different rotational symmetries in a multi dimensional space having a size and a shape as the block; split the block to two complementary portions based on the rotational symmetry mask; generate a pair of rotational symmetry blocks each having one of the two complementary portions; and compute at least one transform coefficient for at least one member of the pair of rotational symmetry blocks.
    Type: Application
    Filed: May 12, 2017
    Publication date: August 31, 2017
    Inventors: Itsik DVIR, Natan PETERFREUND, Dror IRONY, David DREZNER
  • Patent number: 9432579
    Abstract: A method of enhancing pictures recorded by a digital imaging device, including, activating the imaging device to record a burst of multiple consecutive digital pictures, recording the pictures of the burst, selecting one of the digital pictures of the burst to serve as a base picture, estimating alignment of each picture to compensate for motion relative to the base picture, enhancing the base picture by combining with details from the other recorded pictures of the burst while compensating for the motion, providing the enhanced picture as output.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: August 30, 2016
    Inventors: Michael Ben Israel, David Drezner
  • Publication number: 20160248979
    Abstract: A method of enhancing pictures recorded by a digital imaging device, including, activating the imaging device to record a burst of multiple consecutive digital pictures, recording the pictures of the burst, selecting one of the digital pictures of the burst to serve as a base picture, estimating alignment of each picture to compensate for motion relative to the base picture, enhancing the base picture by combining with details from the other recorded pictures of the burst while compensating for the motion, providing the enhanced picture as output.
    Type: Application
    Filed: May 3, 2016
    Publication date: August 25, 2016
    Inventors: Michael BEN ISRAEL, David DREZNER
  • Patent number: 9363438
    Abstract: A method of enhancing pictures recorded by a digital imaging device, including, activating the imaging device to record a burst of multiple consecutive digital pictures, recording the pictures of the burst, selecting one of the digital pictures of the burst to serve as a base picture, estimating alignment of each picture to compensate for motion relative to the base picture, enhancing the base picture by combining with details from the other recorded pictures of the burst while compensating for the motion, providing the enhanced picture as output.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: June 7, 2016
    Inventors: Michael Ben Israel, David Drezner
  • Patent number: 9031126
    Abstract: A system and method for video encoding using noise level estimates from vertical blanking interval lines. A video signal may be received by an encoding system. Information may be extracted from the video signal and may be analyzed. The extracted information may be vertical blanking intervals. The extracted and analyzed information may be utilized to estimate a noise level of the video signal. The estimated noise level may then be utilized in encoding the video signal by being inserted into the video signal or used to change parameters used in video encoding.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: May 12, 2015
    Assignee: Broadcom Corporation
    Inventors: Evgeny Spektor, David Drezner, Shevach Riabtsev, Gennady Mayko
  • Patent number: 8982952
    Abstract: Methods and systems for using motion vector confidence to determine a FME patch priority list for a scalable coder are disclosed, and may include a fine motion estimator receiving a plurality of coarse motion vectors and corresponding confidences. A patch list may be generated based on the corresponding confidences of the coarse motion vectors. The patch list may then be used to determine a search area. Each video block in a present picture may be matched to the video blocks in the search area to find the best match. A fine motion vector may be determined for each video block in the present picture with respect to a video block in the search area.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: March 17, 2015
    Assignee: Broadcom Corporation
    Inventors: David Drezner, Gideon Kojokaro, Yehuda Mittelman
  • Publication number: 20150029349
    Abstract: A method of enhancing pictures recorded by a digital imaging device, including, activating the imaging device to record a burst of multiple consecutive digital pictures, recording the pictures of the burst, selecting one of the digital pictures of the burst to serve as a base picture, estimating alignment of each picture to compensate for motion relative to the base picture, enhancing the base picture by combining with details from the other recorded pictures of the burst while compensating for the motion, providing the enhanced picture as output.
    Type: Application
    Filed: July 23, 2014
    Publication date: January 29, 2015
    Inventors: Michael BEN ISRAEL, David DREZNER
  • Patent number: 8472523
    Abstract: A system and/or method for detecting white noise in a sequence of video frames, and a computer program product is described to affect the quantization step size. In the method/system the correlation between motion vectors of macroblocks is calculated and compared to a predefined threshold. The correlation between motion vectors is used as an indicator for noise in the frames. The quantization step size is then adapted according to the detected level of noise.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: June 25, 2013
    Assignee: Broadcom Corporation
    Inventors: David Drezner, Alexander Ulanovsky
  • Patent number: 8064516
    Abstract: A method for encoding an image of a video stream divided into macroblocks comprising determining a maximum of variance of luma blocks in a macroblock, determining if the maximum of variance exceeds a predetermined threshold, determining if the motion vectors of the macroblock are in correlation with a reference macroblock, determining if the macroblock is not an edge macroblock and setting a first quantization level for the macroblock if it meets these conditions and setting a second quantization level for the macroblock if it does not meet these conditions, where the second quantization level is greater than the first quantization level.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: November 22, 2011
    Assignee: Broadcom Corporation
    Inventors: Gideon Kojokaro, David Drezner