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公开(公告)号:CA3028469A1
公开(公告)日:2018-02-08
申请号:CA3028469
申请日:2017-08-02
Applicant: QUALCOMM INC
Inventor: ZHANG LI , CHIEN WEI-JUNG , ZHAO XIN , CHEN YI-WEN , KARCZEWICZ MARTA
IPC: H04N19/117 , H04N19/136 , H04N19/157 , H04N19/176 , H04N19/186 , H04N19/82
Abstract: The present disclosure provides various techniques related to adaptive loop filtering (ALF), and particular to geometry transformation-based ALF (GALF). In an aspect, a method for decoding video data includes receiving an encoded bitstream having coded video data from which reconstructed video units are generated, identifying multiple filter supports for the reconstructed video units, and filtering the reconstructed video units using the respective multiple filter supports to produce a decoded video output. Another method includes enabling block-level control of ALF of chroma components for the reconstructed video units, performing, for the reconstructed video units, the block-level ALF for the chroma components when ALF is enabled for one video block and skip performing the block-level ALF for the chroma components when ALF is disabled for another video block, and generating, based on the enabled block-level control of ALF, a decoded video output. Related devices, means, and computer-readable medium are also described.
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公开(公告)号:CO2017009676A2
公开(公告)日:2017-12-15
申请号:CO2017009676
申请日:2017-09-25
Applicant: QUALCOMM INC
Inventor: KARCZEWICZ MARTA , CHEN YING , CHEN JIANLE , LI XIANG , ZHANG LI , LIU HONGBIN
IPC: H04N19/513 , H04N19/109 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/56 , H04N19/57 , H04N19/96
Abstract: RESUMEN En un ejemplo, un método para procesar datos de video incluye dividir un bloque actual de datos de video en una pluralidad de subbloques para derivar información de movimiento del bloque actual, en donde la información de movimiento indica el movimiento del bloque actual con respecto a los datos de video de referencia. El método también incluye derivar, en forma separada a cada subbloque respectivo de la pluralidad de subbloques, información de movimiento que comprende realizar una búsqueda de movimiento para un primer conjunto de datos de referencia que corresponde a un segundo conjunto de datos de referencia fuera de cada subbloque respectivo. El método también incluye decodificar la pluralidad de subbloques en función de la información de movimiento derivada y sin decodificar los elementos sintácticos representativos de la información de movimiento.
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公开(公告)号:CO2017009675A2
公开(公告)日:2017-12-15
申请号:CO2017009675
申请日:2017-09-25
Applicant: QUALCOMM INC
Inventor: KARCZEWICZ MARTA , CHEN YING , CHEN JIANLE , LI XIANG , ZHANG LI , LIU HONGBIN
IPC: H04N19/513 , H04N19/109 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/56 , H04N19/57 , H04N19/70 , H04N19/96
Abstract: RESUMEN En un ejemplo, un método para procesar datos de video incluye determinar un vector de movimiento candidato para derivar la información de movimiento de un bloque actual de datos de video, en donde la información de movimiento indica el movimiento del bloque actual con respecto a los datos de video de referencia; y El método también incluye determinar un vector de movimiento derivado para el bloque actual en función del vector de movimiento candidato determinado, en donde la determinación del vector de movimiento derivado comprende realizar una búsqueda de movimiento para un primer conjunto de datos de referencia que corresponde a un segundo conjunto de datos de referencia fuera del bloque actual.
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公开(公告)号:AU2016278991A1
公开(公告)日:2017-11-30
申请号:AU2016278991
申请日:2016-06-17
Applicant: QUALCOMM INC
Inventor: ZHAO XIN , CHEN JIANLE , ZHANG LI , KARCZEWICZ MARTA
IPC: H04N19/176 , H04N19/11 , H04N19/136 , H04N19/463 , H04N19/59 , H04N19/593 , H04N19/80
Abstract: A device for decoding video data includes one or more processors configured to decode syntax information that indicates a selected intra prediction mode for a block of video data from among a plurality of intra prediction modes. The plurality of intra prediction modes includes greater than 33 angular intra prediction modes. The angular intra prediction modes defined such that interpolation is performed in 1/32 pel accuracy. The one or more processors reconstruct the block of video data based on the selected intra prediction mode.
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公开(公告)号:AU2016271140A1
公开(公告)日:2017-11-16
申请号:AU2016271140
申请日:2016-05-27
Applicant: QUALCOMM INC
Inventor: ZHANG LI , KARCZEWICZ MARTA , CHEN JIANLE
IPC: H04N19/13 , H04N19/17 , H04N19/176 , H04N19/436
Abstract: A video coding device includes a memory configured to store video data and processor(s) configured to process at least a portion of the stored video data. The processor(s) are configured to identify a coefficient group (CG) that includes a current transform coefficient of the video data, the CG representing a subset of transform coefficients within a transform unit. The processor(s) are further configured to determine a size of the CG based on a combination of a transform size and one or both of (i) a coding mode associated with the transform unit, or (ii) a transform matrix associated with the transform unit.
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公开(公告)号:AU2016271137A1
公开(公告)日:2017-11-16
申请号:AU2016271137
申请日:2016-05-27
Applicant: QUALCOMM INC
Inventor: ZHANG LI , KARCZEWICZ MARTA , CHEN JIANLE
IPC: H04N19/91 , H04N19/436
Abstract: Context adaptive binary arithmetic coding (CABAC) techniques are generally described. Aspects of the techniques are generally directed to inheritance-based context initialization. An example video coding device includes a memory configured to store video data, and one or more processors. The processor(s) are configured to initialize context information for a current slice of a current picture by inheriting context information of a previously-coded block of a previously-coded picture of the stored video data as initialized context information for the current slice of the current picture. The processor(s) are further configured to code data of the current slice using the initialized context information.
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公开(公告)号:HUE032219T2
公开(公告)日:2017-09-28
申请号:HUE13802489
申请日:2013-11-20
Applicant: QUALCOMM INC
Inventor: CHEN YING , KANG JEWON , ZHANG LI
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公开(公告)号:AR105057A1
公开(公告)日:2017-09-06
申请号:ARP160100821
申请日:2016-03-28
Applicant: QUALCOMM INC
Inventor: MARTA KARCZEWICZ , JIANLE CHEN , HONGBIN LIU , ZHANG LI , YING CHEN , XIANG LI
Abstract: Un método para procesar datos de video incluye dividir un bloque actual de datos de video en una pluralidad de subbloques para derivar información de movimiento del bloque actual, en donde la información de movimiento indica el movimiento del bloque actual con respecto a los datos de video de referencia. El método también incluye derivar, en forma separada a cada subbloque respectivo de la pluralidad de subbloques, información de movimiento que comprende realizar una búsqueda de movimiento para un primer conjunto de datos de referencia que corresponde a un segundo conjunto de datos de referencia fuera de cada subbloque respectivo. El método también incluye decodificar la pluralidad de subbloques en función de la información de movimiento derivada y sin decodificar los elementos sintácticos representativos de la información de movimiento.
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公开(公告)号:AU2016243520A1
公开(公告)日:2017-08-31
申请号:AU2016243520
申请日:2016-03-25
Applicant: QUALCOMM INC
Inventor: LI XIANG , CHEN YING , ZHANG LI , LIU HONGBIN , CHEN JIANLE , KARCZEWICZ MARTA
IPC: H04N19/513 , H04N19/109 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/56 , H04N19/57 , H04N19/70 , H04N19/96
Abstract: In an example, a method of processing video data includes determining a candidate motion vector for deriving motion information of a current block of video data, where the motion information indicates motion of the current block relative to reference video data. The method also includes determining a derived motion vector for the current block based on the determined candidate motion vector, where determining the derived motion vector comprises performing a motion search for a first set of reference data that corresponds to a second set of reference data outside of the current block.
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公开(公告)号:CA3012051A1
公开(公告)日:2017-08-24
申请号:CA3012051
申请日:2017-02-15
Applicant: QUALCOMM INC
Inventor: KARCZEWICZ MARTA , CHIEN WEI-JUNG , ZHANG LI
IPC: H04N19/117 , H04N19/136 , H04N19/176 , H04N19/70 , H04N19/82
Abstract: In one example, a device includes a memory configured to store video data, and one or more processing units implemented in circuitry configured to construct a plurality of filters for classes of blocks of a current picture of the video data, wherein to construct the plurality of filters, the one or more processing units are configured to generate a plurality of sets of filter coefficients, and for a subset of the plurality of filters, determine respective indexes that identify one of the sets of filter coefficients for the corresponding filter of the subset; decode a current block of the current picture, determine a class for the current block, select a filter of the plurality of filters that corresponds to the class for the current block, and filter at least one pixel of the current block using the selected filter.
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