公开(公告)号：PH12018501710A1

公开(公告)日：2019-05-20

申请号：PH12018501710

申请日：2018-08-13

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：PH12018501883A1

公开(公告)日：2019-01-28

申请号：PH12018501883

申请日：2018-09-04

Applicant: QUALCOMM INC

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

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

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：SG11201806738PA

公开(公告)日：2018-10-30

申请号：SG11201806738P

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：CO2018009859A2

公开(公告)日：2018-09-28

申请号：CO2018009859

申请日：2018-09-19

Applicant: QUALCOMM INC

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

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

Abstract: RESUMEN Un método para decodificar datos de video comprende recibir un flujo de bits de datos de video codificados, donde los datos de video codificados representan bloques de luminancia particionados y bloques de crominancia particionados, donde los bloques de crominancia se particionan de forma independiente de los bloques de luminancia, determinar un modo de codificación respectivo que corresponde a los respectivos bloques de luminancia particionados, decodificar los respectivos bloques de luminancia particionados de acuerdo con los respectivos modos de codificación determinados, decodificar un primer elemento de sintaxis que indica que los respectivos modos de codificación asociados con los respectivos bloques de luminancia particionados se van a utilizar para decodificar un primer bloque de crominancia particionado, donde el primer bloque de crominancia particionado está alineado con dos o más bloques de luminancia particionados, determinar un modo de codificación de crominancia para el primer bloque de crominancia particionado de acuerdo con una función de los modos de codificación respectivos de los dos o más bloques de luminancia particionados, y decodificar el primer bloque de crominancia particionado de acuerdo con el modo de codificación de crominancia determinado.

公开(公告)号：CA3020516A1

公开(公告)日：2017-11-16

申请号：CA3020516

申请日：2017-05-10

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  ZHAO XIN ,  SAID AMIR ,  KARCZEWICZ MARTA ,  HU NAN ,  CHIEN WEI-JUNG ,  THIRUMALAI VIJAYARAGHAVAN

IPC: H04N19/91 ,  H04N19/11 ,  H04N19/157 ,  H04N19/176 ,  H04N19/463

Abstract: A device for coding video data is configured to determine that a current block of video data is coded using an intra prediction mode; add an intra prediction mode of a first neighboring block of the current block to a most probable mode candidate list for the current block; add an intra prediction mode for a second neighboring block of the current block to the most probable mode candidate list for the current block; add an intra prediction mode for a third neighboring block of the current block to the most probable mode candidate list for the current block; and code the current block of video data using an intra prediction mode.

公开(公告)号：CA3018197A1

公开(公告)日：2017-11-09

申请号：CA3018197

申请日：2017-05-03

Applicant: QUALCOMM INC

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

IPC: H04N19/44 ,  H04N19/12 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/60 ,  H04N19/70 ,  H04N19/91

Abstract: An example device for decoding video data includes a memory configured to store video data and one or more processors implemented in circuitry and configured to determine a maximum possible value for a secondary transform syntax element for a block of video data, entropy decode a value for the secondary transform syntax element of the block to form a binarized value representative of the secondary transform for the block, reverse binarize the value for the secondary transform syntax element using a common binarization scheme regardless of the maximum possible value to determine the secondary transform for the block, and inverse-transform transform coefficients of the block using the determined secondary transform.

公开(公告)号：CA3011388A1

公开(公告)日：2017-08-24

申请号：CA3011388

申请日：2017-02-15

Applicant: QUALCOMM INC

Inventor： SAID AMIR ,  ZHAO XIN ,  KARCZEWICZ MARTA

IPC: H04N19/60 ,  H04N19/42

Abstract: As part of a video encoding or decoding process, a device applies a transformation to input data elements to derive output data elements for a current block. The transformation comprises a sequence of vector transformations. For each respective vector transformation of the sequence of vector transformations other than a first vector transformation of the sequence of vector transformations, input values for the respective vector transformation comprise output values of the respective previous vector transformation of the sequence of vector transformations. Each respective vector transformation of the sequence of vector transformations further takes, as input, a respective parameter vector for the respective vector transformation, the respective parameter vector for the respective vector transformation comprising one or more parameters.

公开(公告)号：AU2020235621B2

公开(公告)日：2024-11-28

申请号：AU2020235621

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：ZA202006816B

公开(公告)日：2023-07-26

申请号：ZA202006816

申请日：2020-10-30

Applicant: QUALCOMM INC

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

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：CL2021002385A1

公开(公告)日：2022-06-17

申请号：CL2021002385

申请日：2021-09-13

Applicant: QUALCOMM INC

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

IPC: H04N19/70 ,  H04N19/91

Abstract: Un método ejemplar para decodificar por entropía datos de video incluye recuperar un valor de inicialización predefinido para un contexto de una pluralidad de contextos utilizados en un proceso de codificación entrópica adaptable al contexto para codificar por entropía un valor para un elemento de sintaxis para una unidad independientemente codificable de datos de video; determinar, con base en el valor de inicialización predefinido y en un dominio lineal, un estado de probabilidad inicial del contexto; y decodificar por entropía, desde una corriente de bits y con base en el estado de probabilidad inicial del contexto, un bin del valor para el elemento de sintaxis.