Patents by Inventor Elena Alexandrovna ALSHINA

Elena Alexandrovna ALSHINA 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: 20240146924
    Abstract: The present disclosure provides a method of coding implemented by a decoding device, the method comprising: obtaining a value of a splitting mode index for a current coding block; obtaining a value of an angle index for the current coding block according to the value of the splitting mode index value and a pre-stored table; setting a value of an index partIdx according to the value of the angle index; and storing motion information for the current coding block according to the value of the index partIdx.
    Type: Application
    Filed: December 19, 2023
    Publication date: May 2, 2024
    Inventors: Han GAO, Semih ESENLIK, Elena Alexandrovna ALSHINA, Anand Meher KOTRA, Biao WANG
  • Patent number: 11973953
    Abstract: A method for picture or video encoding, wherein a block of residual signal is being subsampled before transform, quantization and residual coding, comprising obtaining a residual signal from an original picture and a predicted block; obtaining a subsampled block from samples of a near-boundary region of a block of residual signal, wherein the subsampled block has a smaller size than the block of residual signal; performing forward transform over the subsampled block; performing quantization over the subsampled block to obtain a subsampled quantized residual block; performing residual coding of the subsampled quantized residual block; obtaining a subsampled reconstructed residual block by inverse quantization and inverse transform of the subsampled quantized residual block; obtaining a reconstructed residual block by filling samples of the near-boundary region of the reconstructed residual block from the subsampled reconstructed residual block; and obtaining a reconstructed block from the predicted block and t
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: April 30, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Alexey Konstantinovich Filippov, Vasily Alexeevich Rufitskiy, Elena Alexandrovna Alshina
  • Publication number: 20240137527
    Abstract: A method of coding implemented by a decoding device or an encoding device, comprising obtaining indication information for a luma position (cbWidth/2, cbHeight/2) of a current coding block, relative to a top-left luma sample position (xCb, yCb) of the current coding block; setting a value of a luma intra prediction mode associated with the current coding block to a first default value, when the indication information indicates that an Intra Block Copy (IBC) mode or palette mode is applied for the luma component at the luma position (cbWidth/2, cbHeight/2), relative to the top-left luma sample position (xCb, yCb) of the current coding block; and obtaining a value of a chroma intra prediction mode based on the value of the luma intra prediction mode of the current coding block.
    Type: Application
    Filed: September 21, 2023
    Publication date: April 25, 2024
    Inventors: Biao WANG, Semih ESENLIK, Han GAO, Anand Meher KOTRA, Elena Alexandrovna ALSHINA
  • Patent number: 11962792
    Abstract: A method of an inter prediction process performed by a processing unit of a coding system comprises deriving combined linear combination parameters from two sets of linear combination parameters, where a first set of linear combination parameters is independent from the position of the to-be-predicted block and a second set of linear combination parameters depends on the position of the to-be-predicted block; and obtaining the value of the to-be-predicted sample using the combined linear combination parameters and predicted values of at least two samples belonging to different reference blocks of the to-be-predicted block.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: April 16, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Alexey Konstantinovich Filippov, Vasily Alexeevich Rufitskiy, Elena Alexandrovna Alshina
  • Patent number: 11962773
    Abstract: A method of coding implemented by a decoding device, comprising obtaining a bitstream; obtaining a value of an indicator for a current block according to the bitstream; obtaining a value of a first parameter for the current block and a value of a second parameter for the current block, according to the value of the indicator and a predefined lookup table; obtaining a value of a sample distance for a sample which is located in the current block, according to the value of the first parameter and the value of the second parameter; obtaining a prediction value for the sample, according to the value of the sample distance for the sample.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: April 16, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Semih Esenlik, Max Blaeser, Zhijie Zhao, Han Gao, Anand Meher Kotra, Biao Wang, Elena Alexandrovna Alshina
  • Patent number: 11943459
    Abstract: Signalling of syntax elements in a sequence parameter set of a video bitstream is addressed. Particularly, it is provided a method of decoding a video bitstream wherein a sequence parameter set, SPS, is coded that contains syntax elements that apply to a video sequence, the method comprising obtaining a value of a first syntax element from the SPS used to specify whether a decoded picture buffer, DPB, parameters syntax structure is present in the SPS and obtaining a value of a second syntax element from the SPS, at least when determining that the value of the first syntax element specifies that the DPB parameters syntax structure is present in the SPS, used to specify the presence of a DPB syntax element in the DPB parameters syntax structure, wherein the DPB syntax element is applied to a temporal sublayer except for the highest temporal sublayer in the video sequence.
    Type: Grant
    Filed: December 15, 2022
    Date of Patent: March 26, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Biao Wang, Semih Esenlik, Anand Meher Kotra, Elena Alexandrovna Alshina, Han Gao
  • Patent number: 11936862
    Abstract: The present disclosure provides a method of coding implemented by a decoding device, the method comprising: obtaining a value of a splitting mode index for a current coding block; obtaining a value of an angle index for the current coding block according to the value of the splitting mode index value and a pre-stored table; setting a value of an index partIdx according to the value of the angle index; and storing motion information for the current coding block according to the value of the index partIdx.
    Type: Grant
    Filed: December 31, 2021
    Date of Patent: March 19, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Han Gao, Semih Esenlik, Elena Alexandrovna Alshina, Anand Meher Kotra, Biao Wang
  • Publication number: 20240078414
    Abstract: Methods and apparatuses are provided for entropy encoding and decoding of a latent tensor, which includes separating the latent tensor into patches and obtaining a probability model for the entropy encoding of a current element of the latent tensor by processing a set of elements from different patches by one or more layers of a neural network. The processing of the set of elements by applying a convolution kernel enables sharing of information between the separated patches.
    Type: Application
    Filed: November 13, 2023
    Publication date: March 7, 2024
    Inventors: Ahmet Burakhan Koyuncu, Atanas Boev, Elena Alexandrovna Alshina
  • Patent number: 11924407
    Abstract: The present disclosure relates to video encoding and decoding, and in particular, a method for inter prediction for a block in a frame of a video signal includes: constructing a history-based motion information candidate list, wherein the list is an ordered list comprising N history-based motion information candidates Hk containing motion information of N preceding blocks preceding the block, wherein each history-based motion information candidate comprises: one or more motion vectors (MVs), one or more reference picture indices corresponding to the MVs, and an interpolation filter index; adding one or more history-based motion information candidates from the history-based motion information candidate list into a motion information candidate list for the block; and deriving motion information for the block based on the motion information candidate list.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: March 5, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Timofey Mikhailovich Solovyev, Sergey Yurievich Ikonin, Roman Igorevich Chernyak, Alexander Alexandrovich Karabutov, Elena Alexandrovna Alshina, Huanbang Chen
  • Publication number: 20240056577
    Abstract: Methods and apparatuses are described to encode data into a bitstream and to decode data from a bitstream. The method is able to reduce the length of the bitstream by including only the relevant significant bits within the trailing bits of the encoding process. The amount of these leading trailing bits is determined and the trailing bits, which have the least amount, can be constructed. Indications of the amount of leading trailing bits are included into the bitstream. Therefore, padding is not required, resulting in less bits, which need to be signaled.
    Type: Application
    Filed: October 26, 2023
    Publication date: February 15, 2024
    Inventors: Maxim Borisovitch Sychev, Andrey Soroka, Elena Alexandrovna Alshina, Sergey Yurievich Ikonin
  • Publication number: 20240056098
    Abstract: Methods and apparatuses are described to encoded data into a bitstream and to decode data from a bitstream. The method is able to perform parallel encoding and decoding efficiently and avoids padding of substreams thus reducing the amount of bits within the bitstream. Portions of input data channels are multiplexed and encoded into substreams. During the multiplexing shuffling methods are applied in order to obtain substreams of more uniform lengths. The amount of bits within the substream may be further reduced by including only the relevant significant bits within the trailing bits of the encoding process.
    Type: Application
    Filed: October 24, 2023
    Publication date: February 15, 2024
    Inventors: Maxim Borisovitch Sychev, Andrey Soroka, Elena Alexandrovna Alshina, Sergey Yurievich Ikonin
  • Publication number: 20240048756
    Abstract: A sparse motion field exchanges motion information between encoder and decoder. Side information indicates a suitable interpolation approach for interpolating the motion vectors of the dense motion field different from the signaled sparse motion field motion vectors. The side information is provided on a segment basis. The segments are derived at the encoder side and the decoder side similarly, based on the reference images and the sparse motion field.
    Type: Application
    Filed: August 8, 2023
    Publication date: February 8, 2024
    Inventors: Timofey Mikhailovich Solovyev, Fabian Brand, Jürgen Seiler, Andre Kaup, Elena Alexandrovna Alshina
  • Publication number: 20240040146
    Abstract: The present disclosure relates to video encoding and decoding, and in particular to determining motion information for a current block using a history-based motion vector predictor, HMVP, list. The HMVP list is constructed, with said list being an ordered list of N HMVP candidates Hk, k=0, . . . , N?1, which are associated with motion information of N preceding blocks of the frame and precede the current block. Each HMVP candidate has motion information including elements of one or more motion vectors, MVs, one or more reference picture indices corresponding to the MVs, and one or more bi-prediction weight indices. One or more HMVP candidates from the HMVP list are added into a motion information candidate list for the current block; and the motion information is derived based on the motion information candidate list.
    Type: Application
    Filed: August 4, 2023
    Publication date: February 1, 2024
    Inventors: Timofey Mikhailovich SOLOVYEV, Roman Igorevich CHERNYAK, Alexander Alexandrovich KARABUTOV, Jianle CHEN, Sergey Yurievich IKONIN, Elena Alexandrovna ALSHINA
  • Publication number: 20240037802
    Abstract: This application provides methods and apparatuses for processing of picture data or picture feature data using a neural network with two or more layers. The present disclosure may be applied in the field of artificial intelligence (AI)-based video or picture compression technologies, and in particular, to the field of neural network-based video compression technologies. According to some embodiments, position within the neural network, at which auxiliary information may be entered for processing is selectable based on a gathering condition. The gathering condition may assess whether some prerequisite is fulfilled. Some of the advantages may include better performance in terms of rate and/or disclosure due to the effect of increased flexibility in neural network configurability.
    Type: Application
    Filed: October 2, 2023
    Publication date: February 1, 2024
    Inventors: Timofey Mikhailovich Solovyev, Biao Wang, Elena Alexandrovna Alshina, Han Gao, Panqi Jia, Esin Koyuncu, Alexander Alexandrovich Karabutov, Mikhail Vyacheslavovich Sosulnikov, Semih Esenlik, Sergey Yurievich Ikonin
  • Publication number: 20240013446
    Abstract: A method for encoding a picture and decoding a bitstream that represents a picture using a neural network (NN) that comprises a plurality of sub-networks is provided. The method includes applying, before processing an input with the at least one sub-network comprising at least two downsampling layers, a rescaling to the input, wherein the rescaling comprises changing the size S1 in the at least one dimension to be S1 so that S1 is an integer multiple of a combined downsampling ratio Rk of the at least one sub-network, after the rescaling, processing the input by the at least one sub-network comprising at least two downsampling layers and providing an output with the size S2, wherein S2 is smaller than S1, and providing, after processing the picture using the NN, a bitstream as output.
    Type: Application
    Filed: June 20, 2023
    Publication date: January 11, 2024
    Inventors: Elena Alexandrovna Alshina, Han Gao, Semih Esenlik
  • Publication number: 20240015290
    Abstract: A method for deblocking a chroma block edge between a first chroma block of a first image block and a second chroma block of a second image block. The method includes a decision process which includes: determining a first chroma quantization parameter for the first chroma block based on a first luma quantization parameter of a first luma block of the first image block and a chroma QP mapping table for the first chroma block; determining a second chroma quantization parameter for the second chroma block based on a second luma quantization parameter of a second luma block of the second image block and a chroma QP mapping table for the second chroma block; determining an averaged and rounded chroma quantization parameter based on the first chroma quantization parameter and the second chroma quantization parameter; and determining a threshold parameter based on the averaged and rounded chroma quantization parameter.
    Type: Application
    Filed: July 11, 2023
    Publication date: January 11, 2024
    Inventors: Anand Meher KOTRA, Elena Alexandrovna ALSHINA, Semih ESENLIK, Biao WANG, Han GAO, Roman Igorevich CHERNYAK
  • Publication number: 20240015314
    Abstract: Disclosed herein are methods and systems for encoding a picture and decoding a bitstream that may represent an encoded picture. During encoding and decoding, rescaling operations are applied to rescale an input to a size that can be processed by a layer of a neural network. Embodiments disclosed herein provide methods for rescaling that achieve a reduced size of the bitstream, thereby improving compression.
    Type: Application
    Filed: June 20, 2023
    Publication date: January 11, 2024
    Inventors: Elena Alexandrovna Alshina, Han Gao, Semih Esenlik
  • Patent number: 11863748
    Abstract: A method of obtaining quantization parameter (QP) for chrominance components based on QP for luminance component, wherein the method is performed by a decoder or encoder, and wherein the method comprises obtaining a luminance QP for a luma component of a coding unit; obtaining a QP index (QPi) based at least in a part on the luminance QP; and obtaining a chrominance QP (QPc) for a chroma component of the coding unit based on the QP index by using a preset lookup table, wherein the maximum difference between the QP index and the chrominance QP is equal to 3.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: January 2, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Sergey Yurievich Ikonin, Roman Igorevich Chernyak, Timofey Mikhailovich Solovyev, Alexander Alexandrovich Karabutov, Elena Alexandrovna Alshina
  • Publication number: 20230412807
    Abstract: Methods and apparatuses for compression of feature tensors of a neural network are provided. One or more encoding parameters for encoding the channels of a feature tensor are selected according to the importance of the channels. This enables unequal bit allocation according to the importance. Furthermore, the deployed neural network may be trained or fine-tuned considering the effect of encoding noise applied to the intermediate feature tensors. According to the present disclosure, the encoding and modified training methods are advantageous at least for employment in a collaborative intelligence framework.
    Type: Application
    Filed: August 31, 2023
    Publication date: December 21, 2023
    Inventors: Alexander Alexandrovich Karabutov, Saeed Ranjbar Alvar, Ivan Bajic, Hyomin Choi, Robert A. Cohen, Sergey Yurievich Ikonin, Timofey Mikhailovich Solovyev, Elena Alexandrovna Alshina
  • Patent number: 11849107
    Abstract: A method of intra prediction of a block, comprising obtaining two lines of reconstructed neighboring samples; deriving a set of reference samples based on the two lines of reconstructed neighboring samples; obtaining a set of MIP coefficients based on a intra prediction mode obtained from a bitstream, wherein a MIP coefficient CMIP of the set of MIP coefficients is obtained based on CMIP=vsgn·(q<<s), where q is a magnitude of the MIP coefficient, wherein s is a left shift value and vsgn is a sign value of the MIP coefficient; and obtaining a prediction block based on the set of reference samples and the set of MIP coefficients, wherein a reconstruct picture is obtained based on the prediction block.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: December 19, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Alexey Konstantinovich Filippov, Vasily Alexeevich Rufitskiy, Jianle Chen, Semih Esenlik, Biao Wang, Elena Alexandrovna Alshina