公开(公告)号：BR112021025719A2

公开(公告)日：2022-02-08

申请号：BR112021025719

申请日：2020-06-26

Applicant: QUALCOMM INC

Inventor： NALCI ALICAN ,  GEERT VAN DER AUWERA ,  KARCZEWICZ MARTA ,  MUHAMMED ZEYD COBAN ,  CHIEN WEI-JUNG ,  HAN YU ,  CHAO YUNG-HSUAN

IPC: H04N19/124 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

Abstract: parâmetro de quantização de delta de croma em codificação de vídeo. um decodificador de vídeo pode ser configurado para determinar um parâmetro de quantização (qp) de luma predito para um componente de luma de uma unidade de codificação; receber, no fluxo de bits de dados de vídeo codificados, a primeira sintaxe indicando um valor de qp de delta de luma para o componente de luma; determinar um valor de qp para o componente de luma com base no qp de luma predito e no valor de qp de delta de luma; determinar um qp de croma predito para um componente de croma da unidade de codificação; receber, no fluxo de bits de dados de vídeo codificados, a segunda sintaxe indicando um valor de qp de delta de croma para o componente de croma da unidade de codificação; e determinar um valor de qp para o componente de croma da unidade de codificação com base no qp de croma predito e no valor de qp de delta de croma.

公开(公告)号：CL2021001351A1

公开(公告)日：2021-12-17

申请号：CL2021001351

申请日：2021-05-25

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  CHIEN WEI-JUNG ,  HUANG HAN ,  HAN YU

IPC: H04N19/513 ,  H04N19/52

Abstract: Un método para codificar datos de video, incluyendo construir una tabla de historial de candidatos de predicción de vector de movimiento basada en historial (HMVP) que incluye información de vector de movimiento de bloques previamente codificados que se extienden más allá de los bloques vecinos adyacentes de un bloque actual, construir una lista de predictores de vector de movimiento, y agregar uno o más candidatos HMVP de la tabla de historial de candidatos HMVP a la lista de predictores de vector de movimiento; la adición de uno o más candidatos HMVP de la tabla de historial de candidatos HMVP comprende comparar un primer candidato HMVP en la tabla de historial de candidatos HMVP con dos entradas en la lista de predictores de vector de movimiento y ninguna otra entrada, y agregar el primer candidato HMVP a la lista de predictores de vector de movimiento cuando el primer candidato HMVP es diferente de las dos entradas en la lista de predictores de vector de movimiento; el método también incluye codificar el bloque actual de datos de video utilizando lista de predictores de vector de movimiento.

公开(公告)号：SG11202007843YA

公开(公告)日：2020-10-29

申请号：SG11202007843Y

申请日：2018-03-19

Applicant: QUALCOMM INC

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

IPC: H04N19/51

Abstract: Methods and devices for decoding including a processor configured to determine which picture is a collocated picture, and determine a location of an associated block of the video data in the collocated picture that corresponds to the current block of video data in the current coding picture, based on using previously decoded blocks in the current coding picture to find an initial motion vector between the associated block in the collocated picture and the current block in the current coding picture, where the associated block of the video data includes at least one first derived motion vector. The processor configured to determine at least one second derived motion vector associated with the current block in the current coding picture, when the initial motion vector points to the collocated picture, based on the at least on first derived motion vector associated with the associated block in the collocated picture.

公开(公告)号：BR112021024588A2

公开(公告)日：2022-01-18

申请号：BR112021024588

申请日：2020-06-19

Applicant: QUALCOMM INC

Inventor： WANG HONGTAO ,  KARCZEWICZ MARTA ,  MUHAMMED ZEYD COBAN ,  CHIEN WEI-JUNG ,  HAN YU

IPC: H04N19/12 ,  H04N19/122 ,  H04N19/176 ,  H04N19/70

Abstract: tamanho de bloco máximo permitido para o modo bdpcm. um dispositivo para decodificação de dados de vídeo pode ser configurado para receber um elemento de sintaxe indicando um tamanho de bloco máximo para um modo de salto de transformada; determinar um tamanho de bloco máximo para um modo de modulação de código de pulso delta baseado em bloco (bdpcm) baseado no elemento de sintaxe; e decodificar um bloco de dados de vídeo baseado no tamanho de bloco máximo determinado para o modo bdpcm.

公开(公告)号：PH12021550507A1

公开(公告)日：2021-11-08

申请号：PH12021550507

申请日：2021-03-08

Applicant: QUALCOMM INC

Inventor： HAN YU ,  CHIEN WEI-JUNG ,  HUANG HAN ,  HUNG CHAO-HSIUNG ,  KARCZEWICZ MARTA

IPC: H04N19/132 ,  H04N19/157 ,  H04N19/176 ,  H04N19/423 ,  H04N19/513 ,  H04N19/52 ,  H04N19/577

Abstract: Systems and techniques for processing video data include a history-based motion vector predictor (HMVP) table with two or more HMVP candidates, where a first entry of the HMVP table associated with a first index value includes a first HMVP candidate and a second entry of the HMVP table associated with a second index value includes a second HMVP candidate, the first index value being lower than the second index value. For an advanced motion vector prediction (AMVP) candidate list, one or more HMVP candidates from the HMVP table are selected in a reverse order, where the second HMVP candidate is selected before the first HMVP candidate according to the reverse order. The selected one or more HMVP candidates are added to the AMVP candidate list. The AMVP candidate list can be used to perform AMVP for the one or more blocks of video data.

公开(公告)号：AU2020219239A1

公开(公告)日：2021-08-12

申请号：AU2020219239

申请日：2020-02-06

Applicant: QUALCOMM INC

Inventor： HAN YU ,  CHIEN WEI-JUNG ,  KARCZEWICZ MARTA

IPC: H04N19/52 ,  H04N19/107 ,  H04N19/109

Abstract: In one example, a method of coding video data includes responsive to determining to predict a current block of a current picture of video data using intra block copy (IBC), generating a motion vector (MV) candidate list for the current block, wherein generating the MV candidate list comprises: determining one or more history-based motion vector prediction (HMVP) candidates; and including, as a last candidate in the MV candidate list, an HMVP candidate of the one or more HMVP candidates; selecting, from the MV candidate list, a particular MV candidate that identifies a predictor block in the current picture; and reconstructing pixels of the current block based on pixels of the predictor block.

公开(公告)号：SG11202103959QA

公开(公告)日：2021-06-29

申请号：SG11202103959Q

申请日：2019-11-27

Applicant: QUALCOMM INC

Inventor： HAN YU ,  CHIEN WEI-JUNG ,  HUANG HAN ,  KARCZEWICZ MARTA

IPC: H04N19/513 ,  H04N19/52

Abstract: A method of coding video data, including constructing a history-based motion vector prediction (HMVP) candidate history table that includes motion vector information of previously coded blocks that extend beyond adjacent neighboring blocks of a current block, constructing a motion vector predictor list, and adding one or more HMVP candidates from the HMVP candidate history table to the motion vector predictor list. Adding the one or more HMVP candidates from the HMVP candidate history table comprises comparing a first HMVP candidate in the HMVP candidate history table to two entries in the motion vector predictor list and no other entries, and adding the first HMVP candidate to the motion vector predictor list when the first HMVP candidate is different than both of the two entries in the motion vector predictor list. The method also includes coding the current block of video data using the motion vector predictor list.

公开(公告)号：CO2021004169A2

公开(公告)日：2021-04-30

申请号：CO2021004169

申请日：2021-04-06

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  CHIEN WEI-JUNG ,  HUANG HAN ,  HAN YU ,  HUNG CHAO-HSIUNG

IPC: H04N19/132 ,  H04N19/157 ,  H04N19/176 ,  H04N19/423 ,  H04N19/513 ,  H04N19/52 ,  H04N19/577

Abstract: RESUMEN Los sistemas y técnicas para procesar datos de video incluyen una tabla de predicción de vector de movimiento basada en historial (HMVP) con dos o más candidatos de HMVP, donde una primera entrada de la tabla de HMVP asociada con un primer valor de índice incluye un primer candidato de HMVP y una segunda entrada de la tabla de HMVP asociada con un segundo valor de índice incluye un segundo candidato de HMVP, siendo el primer valor de índice menor que el segundo valor de índice. Para una lista de candidatos de predicción de vector de movimiento avanzado (AMVP), se seleccionan uno o más candidatos de HMVP de la tabla de HMVP en orden inverso, donde el segundo candidato de HMVP se selecciona antes que el primer candidato de HMVP según el orden inverso. Los uno o más candidatos de HMVP seleccionados se agregan a la lista de candidatos de AMVP. La lista de candidatos de AMVP se puede utilizar para realizar AMVP para uno o más bloques de datos de video.

公开(公告)号：AU2019356483A1

公开(公告)日：2021-04-15

申请号：AU2019356483

申请日：2019-10-07

Applicant: QUALCOMM INC

Inventor： HAN YU ,  CHIEN WEI-JUNG ,  HUANG HAN ,  HUNG CHAO-HSIUNG ,  KARCZEWICZ MARTA

IPC: H04N19/132 ,  H04N19/157 ,  H04N19/176 ,  H04N19/423 ,  H04N19/513 ,  H04N19/52 ,  H04N19/577

Abstract: Systems and techniques for processing video data include a history-based motion vector predictor (HMVP) table with two or more HMVP candidates, where a first entry of the HMVP table associated with a first index value includes a first HMVP candidate and a second entry of the HMVP table associated with a second index value includes a second HMVP candidate, the first index value being lower than the second index value. For an advanced motion vector prediction (AMVP) candidate list, one or more HMVP candidates from the HMVP table are selected in a reverse order, where the second HMVP candidate is selected before the first HMVP candidate according to the reverse order. The selected one or more HMVP candidates are added to the AMVP candidate list. The AMVP candidate list can be used to perform AMVP for the one or more blocks of video data.