公开(公告)号：CA3015156A1

公开(公告)日：2017-09-28

申请号：CA3015156

申请日：2017-03-21

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  ZHAO XIN ,  SAID AMIR ,  KARCZEWICZ MARTA

IPC: H04N19/103 ,  H04N19/119 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186

Abstract: A method of decoding video data comprises receiving a bitstream of encoded video data, the encoded video data representing partitioned luma blocks and partitioned chroma blocks, wherein the chroma blocks are partitioned independently of the luma blocks, determining a respective coding mode corresponding to the respective partitioned luma blocks, decoding the respective partitioned luma blocks according to the determined respective coding modes, decoding a first syntax element indicating that the respective coding modes associated with the respective partitioned luma blocks are to be used for decoding a first partitioned chroma block, wherein the first partitioned chroma block is aligned with two or more partitioned luma blocks, determining a chroma coding mode for the first partitioned chroma block according to a function of the respective coding modes of the two or more partitioned luma blocks, and decoding the first partitioned chroma block in accordance with the determined chroma coding mode.

公开(公告)号：CA3000373A1

公开(公告)日：2017-04-06

申请号：CA3000373

申请日：2016-09-22

Applicant: QUALCOMM INC

Inventor： SAID AMIR ,  ZHAO XIN ,  CHEN JIANLE ,  KARCZEWICZ MARTA

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/146 ,  H04N19/176 ,  H04N19/182

Abstract: Techniques are described to improved video intra prediction using position-dependent prediction combination in video coding. In High Efficiency Video Encoding a set of 35 linear predictors are used for doing intra coding and prediction can be computed from either a nonfiltered or a filtered set of neighboring "reference" pixels, depending on the selected predictor mode and block size. Techniques of this disclosure may use a weighted combination of both the nonfiltered and filtered set of reference pixels to achieve better compression via improved prediction and therefore small residual, enable effective parallel computation of all sets of prediction values, and maintain low complexity via applying filtering only to a set of reference pixels and not to predicted values themselves.

公开(公告)号：ZA202105022B

公开(公告)日：2025-04-30

申请号：ZA202105022

申请日：2021-07-16

Applicant: QUALCOMM INC

Inventor： EGILMEZ HILMI ENES ,  SEREGIN VADIM ,  SAID AMIR ,  KARCZEWICZ MARTA

Abstract: A video decoder may receive, in a bitstream that comprises an encoded representation of video data, information indicating whether a residual block is partitioned and information indicating a partition tree type for the residual block based on the residual block being partitioned, wherein the residual block is indicative of a difference between a current block and a prediction block. The video decoder may determine, based on the received information that the residual block is partitioned and the partition tree type for the residual block, a plurality of residual sub-blocks into which the residual block is partitioned according to the partition tree type. The video decoder may produce the residual data for the current block based at least in part on the residual block being partitioned according to the partition tree type into the plurality of residual sub-blocks and may decode the current block using the residual data.

公开(公告)号：AR118337A1

公开(公告)日：2021-09-29

申请号：ARP200100689

申请日：2020-03-12

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  SEREGIN VADIM ,  SAID AMIR ,  DONG JIE

IPC: H04N19/124 ,  H04N19/13 ,  H04N19/44 ,  H04N19/70 ,  H04N19/91

Abstract: Un método para la decodificación de entropía de datos de video incluye recuperar un valor de inicialización predefinido para un contexto de una pluralidad de contextos utilizados en un proceso de codificación de entropía adaptable al contexto para codificar por entropía un valor para un elemento de sintaxis para una unidad codificable independientemente de datos de video; determinar, basándose en el valor de inicialización predefinido y en un dominio lineal, un estado de probabilidad inicial del contexto; y decodificar por entropía, a partir de un flujo de bits y basándose en el estado de probabilidad inicial del contexto, un bin del valor para el elemento de sintaxis.

公开(公告)号：NZ745047A

公开(公告)日：2021-07-30

申请号：NZ74504717

申请日：2017-03-21

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  SAID AMIR ,  ZHAO XIN ,  SEREGIN VADIM

IPC: H04N19/11 ,  H04N19/593 ,  H04N19/167 ,  H04N19/176

Abstract: Methods and apparatus for encoding and decoding video data comprising receiving a block of video data encoded using a position dependent intra prediction combination (PDPC) mode, the block of video data having a non-square shape defined by a width and a height, determining one or more horizontally-related PDPC parameters from a second lookup table using a first index retrieved from a first lookup table based on the width of the block and determining one or more vertically-related PDPC parameters from the second lookup table using a second index retrieved from the first lookup table based on the height of the block, and encoding or decoding the block of video data using the PDPC mode and the determined PDPC parameters.

公开(公告)号：AU2017238088B2

公开(公告)日：2020-10-22

申请号：AU2017238088

申请日：2017-03-21

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  ZHAO XIN ,  SAID AMIR ,  KARCZEWICZ MARTA

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/167 ,  H04N19/176

Abstract: A method of decoding video data comprising receiving a block of video data encoded using a position dependent intra prediction combination (PDPC) mode, the block of video data having a non-square shape defined by a width and a height, determining one or more PDPC parameters based on one or more of the width or the height of the block of video data, and decoding the block of video data using the PDPC mode and the determined PDPC parameters.

公开(公告)号：MX2020010366A

公开(公告)日：2020-10-19

申请号：MX2020010366

申请日：2019-04-02

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  SAID AMIR ,  VAN DER AUWERA GEERT; ,  SEREGIN VADIM

IPC: H04N19/593 ,  H04N19/11

Abstract: Se describen técnicas de uso de Combinación de Intra Predicción que Depende de la Posición (PDPC); un codificador de video tal como un codificador de video o un decodificador de video utiliza PDPC en casos donde un intra-modo del bloque actual es predicho utilizando un modo de intra predicción angular.

公开(公告)号：ZA201806315B

公开(公告)日：2020-05-27

申请号：ZA201806315

申请日：2018-09-20

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  ZHAO XIN ,  SAID AMIR ,  KARCZEWICZ MARTA

Abstract: A method of decoding video data comprises receiving a bitstream of encoded video data, the encoded video data representing partitioned luma blocks and partitioned chroma blocks, wherein the chroma blocks are partitioned independently of the luma blocks, determining a respective coding mode corresponding to the respective partitioned luma blocks, decoding the respective partitioned luma blocks according to the determined respective coding modes, decoding a first syntax element indicating that the respective coding modes associated with the respective partitioned luma blocks are to be used for decoding a first partitioned chroma block, wherein the first partitioned chroma block is aligned with two or more partitioned luma blocks, determining a chroma coding mode for the first partitioned chroma block according to a function of the respective coding modes of the two or more partitioned luma blocks, and decoding the first partitioned chroma block in accordance with the determined chroma coding mode.

公开(公告)号：AU2018347343A1

公开(公告)日：2020-04-02

申请号：AU2018347343

申请日：2018-10-10

Applicant: QUALCOMM INC

Inventor： SAID AMIR ,  EGILMEZ HILMI ENES ,  KARCZEWICZ MARTA ,  SEREGIN VADIM ,  ZHANG LI ,  ZHAO XIN

IPC: H04N19/70 ,  H04N19/13 ,  H04N19/91

Abstract: A video decoder can be configured to generate a first bin stream by, for at least one bin of the first bin stream, determining a first probability estimation for the at least one bin of the first bin stream based on a first set of parameters and generate a second bin stream by, for at least one bin of the second bin stream, determining a second probability estimation for the at least one bin of the second bin stream based on a second set of parameters that are different parameters than the first set of parameters.

公开(公告)号：AU2018237342A1

公开(公告)日：2019-08-29

申请号：AU2018237342

申请日：2018-03-22

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  ZHANG LI ,  SAID AMIR

IPC: H04N19/13 ,  H04N19/184 ,  H04N19/192 ,  H04N19/91

Abstract: For at least one respective bin of the bin stream, a decoder may determine, based on a state for the respective bin, an interval for the respective bin, and the offset value, a value of the respective bin. Additionally, the decoder determines one or more Finite State Machine (FSM) parameters for a next bin of the bin stream. The one or more FSM parameters for the next bin controls how probability estimates for the next bin are computed from a state for the respective bin. The decoder determines using a parameterized state updating function that takes as input the state for the respective bin, the one or more FSM parameters for the next bin of the bin stream, and the value of the respective bin, a state for the next bin of the bin stream. The decoder may debinarize the bin stream to form a decoded syntax element.