公开(公告)号：CA3074931A1

公开(公告)日：2019-04-18

申请号：CA3074931

申请日：2018-10-10

Applicant: QUALCOMM INC

Inventor： ZHANG KAI ,  CHEN JIANLE ,  ZHAO XIN ,  KARCZEWICZ MARTA

IPC: H04N19/54 ,  H04N19/109 ,  H04N19/147 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

Abstract: A device for video decoding can be configured to obtain, from a syntax structure in a bitstream comprising an encoded representation of the video data, a syntax element indicating whether 6-parameter affine prediction is enabled for blocks corresponding to the syntax structure, wherein the blocks corresponding to the syntax structure comprise a first block; based on the syntax element indicating that the 6-parameter affine prediction is enabled for the blocks corresponding to the syntax structure, use the 6-parameter affine prediction to generate a predictive block for the first block; and use the predictive block and residual data to reconstruct the first block.

公开(公告)号：CA3064441A1

公开(公告)日：2019-01-03

申请号：CA3064441

申请日：2018-06-28

Applicant: QUALCOMM INC

Inventor： ZHANG KAI ,  CHEN JIANLE ,  ZHAO XIN ,  KARCZEWICZ MARTA

IPC: H04N19/593

Abstract: An apparatus configured to encode or decode video data that includes a memory configured to store at least one reconstructed sample of video data and at least one processor, in communication with the memory, that is configured to identify at least one reconstructed sample, determine at least one extended angular intra prediction mode to use for intra prediction of at least one sample of a current block, intra predict, using the at least one extended angular intra prediction mode, at least one sample of the current block based on the at least one reconstructed sample, extended angular intra prediction modes including angular intra prediction modes other than angular prediction modes between horizontal -45 degrees and vertical -45 degrees, and encode or decode the current block based on the at least one predicted sample.

公开(公告)号：CL2020000873A1

公开(公告)日：2020-09-25

申请号：CL2020000873

申请日：2020-04-01

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  CHEN JIANLE ,  ZHAO XIN ,  ZHANG KAI

IPC: H04N19/109 ,  H04N19/147 ,  H04N19/174 ,  H04N19/176 ,  H04N19/54 ,  H04N19/70

Abstract: SE PUEDE CONFIGURAR UN DISPOSITIVO PARA LA DECODIFICACIÓN DE VIDEO PARA OBTENER, A PARTIR DE UNA ESTRUCTURA DE SINTAXIS EN UN FLUJO DE BITS QUE COMPRENDE UNA REPRESENTACIÓN CODIFICADA DE LOS DATOS DE VIDEO, UN ELEMENTO DE SINTAXIS QUE INDICA SI LA PREDICCIÓN AFÍN DE 6 PARÁMETROS ESTÁ HABILITADA PARA BLOQUES CORRESPONDIENTES A LA ESTRUCTURA DE SINTAXIS, EN DONDE LOS BLOQUES CORRESPONDIENTE A LA ESTRUCTURA DE SINTAXIS COMPRENDEN UN PRIMER BLOQUE; BASADO EN EL ELEMENTO DE SINTAXIS QUE INDICA QUE LA PREDICCIÓN AFÍN DE 6 PARÁMETROS ESTÁ HABILITADA PARA LOS BLOQUES CORRESPONDIENTES A LA ESTRUCTURA DE SINTAXIS, USAR LA PREDICCIÓN AFÍN DE 6 PARÁMETROS PARA GENERAR UN BLOQUE PREDICTIVO PARA EL PRIMER BLOQUE; Y USAR EL BLOQUE PREDICTIVO Y LOS DATOS RESIDUALES PARA RECONSTRUIR EL PRIMER BLOQUE.

公开(公告)号：SG11202006301YA

公开(公告)日：2020-08-28

申请号：SG11202006301Y

申请日：2019-02-07

Applicant: QUALCOMM INC

Inventor： ZHANG LI ,  ZHANG KAI ,  CHIEN WEI-JUNG ,  KARCZEWICZ MARTA

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/157 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/52

Abstract: This disclosure describes example techniques that a video coder (e.g., video encoder or video decoder) may utilize to determine a block vector for a chroma block where the partition trees for the chroma component and the luma component are different (e.g., decoupled partition trees).

公开(公告)号：SG11202001959XA

公开(公告)日：2020-04-29

申请号：SG11202001959X

申请日：2018-10-09

Applicant: QUALCOMM INC

Inventor： ZHAO XIN ,  SEREGIN VADIM ,  SAID AMIR ,  KARCZEWICZ MARTA ,  ZHANG KAI ,  THIRUMALAI VIJAYARAGHAVAN

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/182

Abstract: A video coder may generate a predictor block using an intra prediction mode. As part of generating the predictor block, the video coder may, for each respective sample in a set of samples in the predictor block, determine, based on an initial value of the first weight and a distance between the respective sample and a first boundary of the predictor block, a value of the first weight for the respective sample. Additionally, the video coder may determine, based on the initial value of the second weight and a distance between the respective sample and a second boundary of the predictor block, a value of the second weight for the respective sample. The video coder may also determine a primary value for the respective sample. The video coder may then determine a secondary value for the respective sample based on the first weight, second weight, and the primary value.

公开(公告)号：SG11201910399PA

公开(公告)日：2020-01-30

申请号：SG11201910399P

申请日：2018-06-22

Applicant: QUALCOMM INC

Inventor： CHUANG HSIAO-CHIANG ,  CHEN JIANLE ,  ZHANG KAI ,  LI XIANG ,  KARCZEWICZ MARTA ,  CHEN YI-WEN ,  CHIEN WEI-JUNG

IPC: H04N19/577 ,  H04N19/523 ,  H04N19/57 ,  H04N19/59

Abstract: A device for decoding video data is configured to perform interpolation filtering using an N-tap filter to generate an interpolated search space for a first block of video data; obtain a first predictive block in the interpolated search space; determine that a second block of video data is encoded using a bi-directional inter prediction mode and a bi-directional optical flow (BIO) process; perform an inter prediction process for the second block of video data using the bi-directional inter prediction mode to determine a second predictive block; perform the BIO process on the second predictive block to determine a BIO-refined version of the second predictive block, wherein a number of reference samples used for calculating intermediate values for BIO offsets is limited to a region of (W+N−1)×(H+N−1) integer samples, wherein W and H correspond to a width and height of the second block in integer samples.

公开(公告)号：CL2019003724A1

公开(公告)日：2020-07-10

申请号：CL2019003724

申请日：2019-12-18

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  CHEN JIANLE ,  ZHAO XIN ,  ZHANG KAI

IPC: H04N19/593

Abstract: UN APARATO CONFIGURADO PARA CODIFICAR O DECODIFICAR DATOS DE VIDEO QUE INCLUYE UNA MEMORIA CONFIGURADA PARA ALMACENAR AL MENOS UNA MUESTRA RECONSTRUIDA DE DATOS DE VIDEO Y AL MENOS UN PROCESADOR, EN COMUNICACIÓN CON LA MEMORIA, QUE ESTÁ CONFIGURADO PARA IDENTIFICAR AL MENOS UNA MUESTRA RECONSTRUIDA, DETERMINA AL MENOS UN MODO DE PREDICCIÓN INTRA ANGULAR EXTENDIDA PARA USAR PARA LA PREDICCIÓN INTRA DE AL MENOS UNA MUESTRA DE UN BLOQUE ACTUAL, PREDICCIÓN INTRA, UTILIZANDO EL AL MENOS UN MODO DE PREDICCIÓN ANGULAR EXTENDIDA, AL MENOS UNA MUESTRA DEL BLOQUE ACTUAL BASADO EN AL MENOS UNA MUESTRA RECONSTRUIDA, MODOS DE PREDICCIÓN INTRA ANGULAR EXTENDIDOS, INCLUIDOS LOS MODOS DE PREDICCIÓN ANGULAR DISTINTOS DE LOS MODOS DE PREDICCIÓN ANGULAR ENTRE HORIZONTAL -45 GRADOS Y VERTICAL -45 GRADOS, Y CODIFICAR O DECODIFICAR EL BLOQUE ACTUAL EN FUNCIÓN DE AL MENOS UNA MUESTRA PREDICHA.

公开(公告)号：CO2020004110A2

公开(公告)日：2020-04-24

申请号：CO2020004110

申请日：2020-04-01

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  CHIEN WEI-JUNG ,  ZHANG LI ,  ZHANG KAI ,  CHEN JIANLE ,  LI XIANG ,  CHEN YI-WEN

IPC: H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/52 ,  H04N19/54

Abstract: RESUMEN Un dispositivo de ejemplo para codificar datos de video incluye una memoria configurada para almacenar datos de video, y uno o más procesadores implementados en circuito y configurados para codificar una primera diferencia de vectores de movimiento (MVD) que representa una diferencia entre un primer vector de movimiento de un bloque actual de datos de video predicho usando predicción afín y un primer predictor de vectores de movimiento (MVP) para el primer vector de movimiento, predecir una segunda MVD de la primera MVD para un segundo vector de movimiento del bloque actual, y codificar el bloque actual usando predicción afín de acuerdo con el primer vector de movimiento y el segundo vector de movimiento. La predicción de la segunda MVD de la primera MVD de esta forma puede reducir la tasa de bits de una corriente de bits que incluye datos de video codificados, así como mejorar la eficacia de procesamiento.

公开(公告)号：AU2018345741A1

公开(公告)日：2020-03-19

申请号：AU2018345741

申请日：2018-10-02

Applicant: QUALCOMM INC

Inventor： ZHANG KAI ,  CHEN JIANLE ,  LI XIANG ,  CHIEN WEI-JUNG ,  CHEN YI-WEN ,  ZHANG LI ,  KARCZEWICZ MARTA

IPC: H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/52 ,  H04N19/54

Abstract: An example device for coding video data includes a memory configured to store video data, and one or more processors implemented in circuitry and configured to code a first motion vector difference (MVD) representing a difference between a first motion vector of a current block of video data predicted using affine prediction and a first motion vector predictor (MVP) for the first motion vector, predict a second MVD from the first MVD for a second motion vector of the current block, and code the current block using affine prediction according to the first motion vector and the second motion vector. Predicting the second MVD from the first MVD in this may reduce bitrate of a bitstream including coded video data, as well as improve processing efficiency.

公开(公告)号：SG11201910916RA

公开(公告)日：2020-01-30

申请号：SG11201910916R

申请日：2018-07-02

Applicant: QUALCOMM INC

Inventor： LI XIANG ,  HSIEH CHENG-TEH ,  CHEN JIANLE ,  ZHANG KAI ,  CHUANG HSIAO-CHIANG ,  KARCZEWICZ MARTA

IPC: H04N19/583 ,  H04N19/55 ,  H04N19/593

Abstract: A method of decoding video data includes determining, by a video decoder, a neighboring block in a current frame is inter coded. The method includes, in response to determining the neighboring block is inter coded, determining, by the video decoder, a template for a current block in the current frame based on a partial reconstruction of the neighboring block. The method includes determining, by the video decoder, a reference block in a reference frame corresponding to the template for the current block and determining, by the video decoder, motion vector information for the current frame based on the reference block and the template. The method includes generating, by the video decoder, a predictive block for the current block of video data based on the motion vector information and decoding, by the video decoder, the current block of video data based on the predictive block.