Patents by Inventor Roman CHERNYAK
Roman CHERNYAK 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).
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Publication number: 20240080471Abstract: Aspects of the disclosure provide a method and an apparatus including processing circuitry that determines, based on a syntax element in a coded video bitstream, that a current block including a plurality of subblocks is coded in a subblock-based temporal motion vector prediction (SbTMVP) mode. Motion vector offset (MVO) information indicating an MVO is received. The MVO indicates a motion offset of a displacement vector (DV) used to adjust a location of a collocated block in a collocated reference picture. An updated DV of the current block is determined based on the DV and the MVO. SbTMVP information of a respective subblock in the plurality of subblocks is derived based on motion information of a corresponding subblock in the collocated block indicated by the updated DV. The plurality of subblocks in the SbTMVP mode is reconstructed based on the SbTMVP information of the subblock in the plurality of subblocks.Type: ApplicationFiled: November 6, 2023Publication date: March 7, 2024Applicant: Tencent America LLCInventors: Lien-Fei CHEN, Xin ZHAO, Roman CHERNYAK, Xiaozhong XU, Shan LIU
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Patent number: 11019339Abstract: A method of coding includes receiving a bitstream, obtaining a chroma quantization parameter range offset, a luma quantization parameter, quantization parameter offsets, and coefficients; calculating first intermediate chroma quantization parameters using the chroma quantization parameter range offset, the luma quantization parameter, and the quantization parameter offsets; where the first intermediate chroma quantization parameters have non-integer values; determining second intermediate chroma quantization parameters based on the first intermediate chroma quantization parameters, where the second intermediate chroma quantization parameters have non-integer values; calculating final chroma quantization parameters based on the second intermediate chroma quantization parameters and the chroma quantization parameter range offset; calculating a quantization step using the final chroma quantization parameters; quantizing the coefficients using the quantization step to produce quantized coefficients and transformiType: GrantFiled: July 6, 2018Date of Patent: May 25, 2021Assignee: Futurewei Technologies, Inc.Inventors: Shan Liu, Sergey Ikonin, Roman Chernyak
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Patent number: 10841605Abstract: The present disclosure relates to a video coder for predictive coding a video stream of subsequent frames according to motion compensation into an encoded video bit stream, comprising a frame buffer configured to store at least one reference frame of the video stream, a prediction unit configured to generate a prediction block of a current block of a current frame from a reference block of the reference frame according to a motion vector having fractional-pel resolution, the fractional-pel resolution defining an integer-pel position and fractional-pel positions. The prediction unit is configured to interpolate the reference block according to the fractional-pel resolution via one of the at least three following interpolation filters: a blurring interpolation filter, a tap filter, and the tap filter followed by a sharpening filter.Type: GrantFiled: March 23, 2018Date of Patent: November 17, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Sergey Yurievich Ikonin, Maxim Borisovitch Sychev, Victor Alexeevich Stepin, Roman Chernyak
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Patent number: 10623738Abstract: A mechanism of video coding is provided. The mechanism includes generating a reconstructed image from an encoded video stream. The reconstructed image is filtered to create a filtered image. The filtering includes applying a noise suppression filter to the reconstructed image. The noise suppression filter may be applied immediately prior to applying a deblocking filter to the reconstructed image, between a deblocking filter and a sample adaptive offset (SAO) filter, between the SAO filter and an adaptive loop filter, or after the adaptive loop filter. The filtered image is then stored in a picture buffer in memory for use in encoding or for output to a display in decoding.Type: GrantFiled: March 27, 2018Date of Patent: April 14, 2020Assignee: Futurewei Technologies, Inc.Inventors: Shan Liu, Roman Chernyak, Jiali Fu, Victor Stepin, Xiang Ma, Igor Pasechnik, Sergey Ikonin
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Patent number: 10595019Abstract: A mechanism of video coding is provided. The mechanism includes generating a reconstructed video frame. Noise suppression filter parameters are determined by partitioning the reconstructed video frame into blocks and matching the blocks to create patches. The noise suppression filter parameters are then determined based on the patches by creating a transformed matrix of patch frequencies. The noise suppression filter parameters include a noise estimation parameter that is a function of patch frequency. The noise suppression filter parameters are then employed to apply a noise suppression filter to the reconstructed video frame.Type: GrantFiled: August 31, 2018Date of Patent: March 17, 2020Assignee: Futurewei Technologies, Inc.Inventors: Roman Chernyak, Victor Stepin, Jose Alvarez, Shan Liu, Jiali Fu, Shan Gao, Haitao Yang, Yin Zhao, Jiantong Zhou
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Publication number: 20190089953Abstract: A mechanism of video coding is provided. The mechanism includes generating a reconstructed video frame. Noise suppression filter parameters are determined by partitioning the reconstructed video frame into blocks and matching the blocks to create patches. The noise suppression filter parameters are then determined based on the patches by creating a transformed matrix of patch frequencies. The noise suppression filter parameters include a noise estimation parameter that is a function of patch frequency. The noise suppression filter parameters are then employed to apply a noise suppression filter to the reconstructed video frame.Type: ApplicationFiled: August 31, 2018Publication date: March 21, 2019Inventors: Roman Chernyak, Victor Stepin, Jose Alvarez, Shan Liu, Jiali Fu, Shan Gao, Haitao Yang, Yin Zhao, Jiantong Zhou
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Publication number: 20190020875Abstract: A method of coding includes receiving a bitstream, obtaining a chroma quantization parameter range offset, a luma quantization parameter, quantization parameter offsets, and coefficients; calculating first intermediate chroma quantization parameters using the chroma quantization parameter range offset, the luma quantization parameter, and the quantization parameter offsets; where the first intermediate chroma quantization parameters have non-integer values; determining second intermediate chroma quantization parameters based on the first intermediate chroma quantization parameters, where the second intermediate chroma quantization parameters have non-integer values; calculating final chroma quantization parameters based on the second intermediate chroma quantization parameters and the chroma quantization parameter range offset; calculating a quantization step using the final chroma quantization parameters; quantizing the coefficients using the quantization step to produce quantized coefficients and transformiType: ApplicationFiled: July 6, 2018Publication date: January 17, 2019Inventors: Shan Liu, Sergey Ikonin, Roman Chernyak
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Publication number: 20190020870Abstract: A mechanism of video coding is provided. The mechanism includes generating a reconstructed image from an encoded video stream. The reconstructed image is filtered to create a filtered image. The filtering includes applying a noise suppression filter to the reconstructed image. The noise suppression filter may be applied immediately prior to applying a deblocking filter to the reconstructed image, between a deblocking filter and a sample adaptive offset (SAO) filter, between the SAO filter and an adaptive loop filter, or after the adaptive loop filter. The filtered image is then stored in a picture buffer in memory for use in encoding or for output to a display in decoding.Type: ApplicationFiled: March 27, 2018Publication date: January 17, 2019Inventors: Shan Liu, Roman Chernyak, Jiali Fu, Victor Stepin, Xiang Ma, Igor Pasechnik, Sergey Ikonin
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Publication number: 20180295364Abstract: A mechanism of video coding is provided. The mechanism includes generating a reconstructed image from an encoded video stream. The reconstructed image is filtered to create a filtered image. The filtering includes applying a noise suppression filter to the reconstructed image. The noise suppression filter may be applied immediately prior to applying a deblocking filter to the reconstructed image, between a deblocking filter and a sample adaptive offset (SAO) filter, between the SAO filter and an adaptive loop filter, or after the adaptive loop filter. The filtered image is then stored in a picture buffer in memory for use in encoding or for output to a display in decoding.Type: ApplicationFiled: March 27, 2018Publication date: October 11, 2018Inventors: Shan Liu, Roman Chernyak, Jiali Fu, Victor Stepin, Xiang Ma, Igor Pasechnik, Sergey Ikonin
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Publication number: 20180220148Abstract: The present disclosure relates to a video coder for predictive coding a video stream of subsequent frames according to motion compensation into an encoded video bit stream, comprising a frame buffer configured to store at least one reference frame of the video stream, a prediction unit configured to generate a prediction block of a current block of a current frame from a reference block of the reference frame according to a motion vector having fractional-pel resolution, the fractional-pel resolution defining an integer-pel position and fractional-pel positions. The prediction unit is configured to interpolate the reference block according to the fractional-pel resolution via one of the at least three following interpolation filters: a blurring interpolation filter, a tap filter, and the tap filter followed by a sharpening filter.Type: ApplicationFiled: March 23, 2018Publication date: August 2, 2018Inventors: Sergey Yurievich IKONIN, Maxim Borisovitch SYCHEV, Victor Alexeevich STEPIN, Roman CHERNYAK