公开(公告)号：CO2021007864A2

公开(公告)日：2021-06-21

申请号：CO2021007864

申请日：2021-06-16

Applicant: QUALCOMM INC

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

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/70

Abstract: RESUMEN Un decodificador de video puede recibir, en un flujo de bits que comprende una representación codificada de datos de video, información que indica si un bloque residual está particionado e información que indica un tipo de árbol de partición para el bloque residual basado en el bloque residual que está siendo particionado, en donde el bloque residual es indicativo de una diferencia entre un bloque actual y un bloque de predicción. El decodificador de video puede determinar, basándose en la información recibida, que el bloque residual está particionado y el tipo de árbol de partición para el bloque residual, una pluralidad de subbloques residuales en los que el bloque residual está dividido de acuerdo con el tipo de árbol de partición. El decodificador de video puede producir los datos residuales para el bloque actual basándose al menos en parte en el bloque residual que se está dividiendo de acuerdo con el tipo de árbol de partición en la pluralidad de subbloques residuales y puede decodificar el bloque actual utilizando los datos residuales.

公开(公告)号：CL2020003251A1

公开(公告)日：2021-06-18

申请号：CL2020003251

申请日：2020-12-16

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  SAID AMIR ,  EGILMEZ HILMI ENES

IPC: H04N19/13 ,  H04N19/91

Abstract: Un ejemplo de dispositivo de codificación, como un dispositivo de codificación (codificación o decodificación) de vídeo, está configurado para determinar una pluralidad de funciones de estimador que se utilizarán para calcular una probabilidad de que un símbolo tenga un valor particular, en el que el símbolo se codificará por aritmética binaria de acuerdo a la probabilidad, y donde las funciones de estimador no incluyen operaciones de división; determinar una pluralidad de ponderaciones para la pluralidad de funciones de estimador de modo que cuando se apliquen las ponderaciones respectivas a las funciones de estimador, una suma resultante de salidas de la pluralidad de funciones de estimador produzca la probabilidad; calcular la probabilidad de que el símbolo tenga el valor particular, incluyendo: ejecutar las funciones del estimador sin usar las operaciones de división para determinar las salidas; y calcular una suma de las salidas como probabilidad; y codificar por aritmética binaria el símbolo de acuerdo con la probabilidad de que el símbolo tenga el valor particular.

公开(公告)号：AU2019402886A1

公开(公告)日：2021-06-10

申请号：AU2019402886

申请日：2019-12-17

Applicant: QUALCOMM INC

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

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/70

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：AU2017238084B2

公开(公告)日：2021-03-11

申请号：AU2017238084

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：CO2020012311A2

公开(公告)日：2020-10-30

申请号：CO2020012311

申请日：2020-09-30

Applicant: QUALCOMM INC

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

IPC: H04N19/593 ,  H04N19/11

Abstract: RESUMEN Se describen técnicas de uso de la combinación de intrapredicción dependiente de la posición (PDPC). Un codificador de video, tal como un codificador de video o un decodificador de video, utiliza PDPC en casos en que un bloque actual se predice en intramodo usando un modo de intrapredicción angular.

公开(公告)号：AU2019249440A1

公开(公告)日：2020-10-01

申请号：AU2019249440

申请日：2019-04-02

Applicant: QUALCOMM INC

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

IPC: H04N19/593 ,  H04N19/11

Abstract: Techniques are described of using Position Dependent Intra Prediction Combination (PDPC). A video coder such as a video encoder or a video decoder utilizes PDPC in cases where a current block intra mode predicted using an angular intra prediction mode.

公开(公告)号：CA3131886A1

公开(公告)日：2020-09-17

申请号：CA3131886

申请日：2020-03-12

Applicant: QUALCOMM INC

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

IPC: H04N19/12 ,  H04N19/157 ,  H04N19/176 ,  H04N19/625

Abstract: An example method includes inferring, for a current transform block of a current video block, a transform type from a plurality of transform types that includes one or more discrete cosine transforms (DCTs) and one or more discrete sine transforms (DSTs), wherein inferring the transform type comprises: determining a size of the current transform block; determining whether the current video block is partitioned using intra-subblock partitioning (ISP); and responsive to determining that the size of the current transform block is less than a threshold and that the current video block is partitioned using ISP, selecting a particular DST of the one or more DSTs as the selected transform type; transforming, using the selected transform type, the current transform block to obtain a block of reconstructed residual data for the video block; and reconstructing, based on the reconstructed residual data for the video block, the video block.

公开(公告)号：CA3131883A1

公开(公告)日：2020-09-17

申请号：CA3131883

申请日：2020-03-12

Applicant: QUALCOMM INC

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

IPC: H04N19/91 ,  H04N19/70

Abstract: An example method for entropy decoding of video data includes retrieving a pre-defined initialization value for a context of a plurality of contexts used in a context-adaptive entropy coding process to entropy code a value for a syntax element for an independently codable unit of video data; determining, based on the pre-defined initialization value and in a linear domain, an initial probability state of the context; and entropy decoding, from a bitstream and based on the initial probability state of the context, a bin of the value for the syntax element.

公开(公告)号：CA3120045A1

公开(公告)日：2020-06-25

申请号：CA3120045

申请日：2019-12-17

Applicant: QUALCOMM INC

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

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/70

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：AU2018291156A1

公开(公告)日：2019-12-05

申请号：AU2018291156

申请日：2018-06-28

Applicant: QUALCOMM INC

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

IPC: H04N19/159 ,  H04N19/12 ,  H04N19/176 ,  H04N19/18 ,  H04N19/60

Abstract: Techniques are described in which a decoder is configured to receive an input data block and apply an inverse non-separable transform to at least part of the input data block to generate an inverse non-separable transform output coefficient block. The applying the inverse non-separable transform comprises assigning a window, assigning a weight for each position inside the assigned window, and determining the inverse non-separable transform output coefficient block based on the assigned weights. The decoder is further configured to forming a decoded video block based on the determined inverse non-separable transform output coefficient block, wherein forming the decoded video block comprises summing the residual video block with one or more predictive blocks.