公开(公告)号：HK1216273A1

公开(公告)日：2016-10-28

申请号：HK16104244

申请日：2015-02-04

Applicant: QUALCOMM INC

Inventor： WANG XIANGLIN ,  SEREGIN VADIM ,  KARCZEWICZ MARTA

IPC: H04N20060101

公开(公告)号：CA2812307C

公开(公告)日：2016-06-28

申请号：CA2812307

申请日：2011-09-30

Applicant: QUALCOMM INC

Inventor： VAN DER AUWERA GEERT ,  WANG XIANGLIN ,  COBAN MUHAMMED ZEYD ,  KARCZEWICZ MARTA ,  ZHENG YUNFEI

IPC: H04N19/159 ,  H04N19/117 ,  H04N19/176 ,  H04N19/593

Abstract: This disclosure relates to techniques for reducing the amount of additional data encoded with a block encoded using intra-predictive coding. Particularly, the techniques provide apparatus and methods of applying a smoothing filter to prediction samples used in intra-predictive coding. For example, in fixed mode-dependent intra- predictive coding, a video encoder may determine the type of smoothing filter applied to prediction samples based on block size and intra-prediction mode combination associated with the current block, where the combination is used to look up a filter in a first filter table. In adaptive mode-dependent intra-predictive coding, the encoder uses two filters, one from the first filter table and another from a second filter table, applies both filters, and determines which yields better results. When the second filter table filter yields better results, the encoder encodes a filtering indication. When a filter from the first filter table is used, no filtering indication is encoded.

公开(公告)号：MX338116B

公开(公告)日：2016-04-01

申请号：MX2014000760

申请日：2012-07-17

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  ZHENG YUNFEI ,  CHIEN WEI-JUNG ,  WANG XIANGLIN ,  GUO LIWEI

IPC: H04N19/593

Abstract: En un ejemplo, aspectos de esta divulgación se refieren a un método para codificar datos de video que generalmente incluye determinar información de predicción para un bloque de datos de video, donde el bloque está incluido en una unidad codificada de datos de video y colocado debajo de una fila superior de bloques vecinos de arriba en la unidad codificada, y donde la información de predicción para el bloque está basada en la información de predicción de uno o más bloques diferentes en la unidad codificada pero no está basada en información de predicción de ninguno de la fila superior de bloques en la unidad codificada; el método generalmente también incluye codificar el bloque con base en la información de predicción determinada.

公开(公告)号：AU2012284123B2

公开(公告)日：2016-01-14

申请号：AU2012284123

申请日：2012-07-17

Applicant: QUALCOMM INC

Inventor： CHIEN WEI-JUNG ,  ZHENG YUNFEI ,  WANG XIANGLIN ,  KARCZEWICZ MARTA ,  GUO LIWEI

IPC: H04N19/00 ,  H04N19/593

Abstract: In an example, aspects of this disclosure relate to a method of coding video data that generally includes determining prediction information for a block of video data, where the block is included in a coded unit of video data and positioned below a top row of above-neighboring blocks in the coded unit, and where the prediction information for the block is based on prediction information from one or more other blocks in the coded unit but not based on prediction information from any of the top row of blocks in the coded unit. The method also generally includes coding the block based on the determined prediction information.

公开(公告)号：AU2012267737B2

公开(公告)日：2015-12-03

申请号：AU2012267737

申请日：2012-06-08

Applicant: QUALCOMM INC

Inventor： CHIEN WEI-JUNG ,  KARCZEWICZ MARTA ,  WANG XIANGLIN

IPC: H04N19/103 ,  H04N19/593

Abstract: This disclosure describes techniques for intra-prediction mode signaling for video coding. In one example, a video coder is configured to determine, for a block of video data, a set of most probable intra-prediction modes such that the set of most probable intraprediction modes has a size that is equal to a predetermined number that is greater than or equal to two. The video coder is also configured to code a value representative of an actual intra-prediction mode for the block based at least in part on the set of most probable intraprediction modes and code the block using the actual intra-prediction mode. The video coder may further be configured to code the block using the actual intra-prediction mode, e.g., to encode or decode the block. Video encoders and video decoders may implement these techniques.

公开(公告)号：AU2011308653B2

公开(公告)日：2015-11-19

申请号：AU2011308653

申请日：2011-09-30

Applicant: QUALCOMM INC

Inventor： VAN DER AUWERA GEERT ,  WANG XIANGLIN ,  COBAN MUHAMMED ZEYD ,  KARCZEWICZ MARTA ,  ZHENG YUNFEI

IPC: H04N19/00 ,  H04N19/593

Abstract: This disclosure relates to techniques for reducing the amount of additional data encoded with a block encoded using intra-predictive coding. Particularly, the techniques provide apparatus and methods of applying a smoothing filter to prediction samples used in intra-predictive coding. For example, in fixed mode-dependent intra- predictive coding, a video encoder may determine the type of smoothing filter applied to prediction samples based on block size and intra-prediction mode combination associated with the current block, where the combination is used to look up a filter in a first filter table. In adaptive mode-dependent intra-predictive coding, the encoder uses two filters, one from the first filter table and another from a second filter table, applies both filters, and determines which yields better results. When the second filter table filter yields better results, the encoder encodes a filtering indication. When a filter from the first filter table is used, no filtering indication is encoded.

公开(公告)号：AU2012273109B2

公开(公告)日：2015-10-22

申请号：AU2012273109

申请日：2012-06-19

Applicant: QUALCOMM INC

Inventor： ZHENG YUNFEI ,  WANG XIANGLIN ,  KARCZEWICZ MARTA

IPC: H04N19/00 ,  H04N19/503 ,  H04N19/587 ,  H04N19/593

Abstract: This disclosure presents methods and systems for coding video in merge mode of a motion vector prediction process. A method of coding video data may determining a merge candidate set for a current prediction unit of a current coding unit, wherein the merge candidate set is determined without comparing motion information of a merge candidate in the merge candidate set to motion information of any other prediction units, and performing a merge motion vector prediction process for the current prediction unit using the merge candidate set. The method may further comprise excluding merge candidates from the merge candidate set that are within another prediction unit of the current coding unit.

公开(公告)号：HK1201110A1

公开(公告)日：2015-08-21

申请号：HK15101559

申请日：2015-02-12

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  WANG XIANGLIN

IPC: H04N20060101

Abstract: A method of coding delta quantization parameter values is described. In one example a video decoder may receive a delta quantization parameter (dQP) value for a current quantization block of video data, wherein the dQP value is received whether or not there are non-zero transform coefficients in the current quantization block. In another example, a video decoder may receive the dQP value for the current quantization block of video data only in the case that the QP Predictor for the current quantization block has a value of zero, and infer the dQP value to be zero in the case that the QP Predictor for the current quantization block has a non-zero value, and there are no non-zero transform coefficients in the current quantization block.

公开(公告)号：HK1199994A1

公开(公告)日：2015-07-24

申请号：HK15100254

申请日：2015-01-09

Applicant: QUALCOMM INC

Inventor： ZHENG YUNFEI ,  WANG XIANGLIN ,  KARCZEWICZ MARTA

IPC: H04N20060101

Abstract: In generating a candidate list for inter prediction video coding, a video coder can perform pruning operations when adding spatial candidates and temporal candidates to a candidate list while not performing pruning operations when adding an artificially generated candidate to the candidate list. The artificially generated candidate can have motion information that is the same as motion information of a spatial candidate or temporal candidate already in the candidate list.

公开(公告)号：IN2628CHN2014A

公开(公告)日：2015-06-26

申请号：IN2628CHN2014

申请日：2014-04-07

Applicant: QUALCOMM INC

Inventor： DER AUWERA GEERT VAN ,  KARCZEWICZ MARTA ,  WANG XIANGLIN

Abstract: Techniques for coding video data include coding a plurality of blocks of video data wherein at least one block of the plurality of blocks of video data is coded using a coding mode that is one of an intra pulse code modulation (IPCM) coding mode and a lossless coding mode. In some examples the lossless coding mode may use prediction. The techniques further include assigning a non zero quantization parameter (QP) value for the at least one block coded using the coding mode. The techniques also include performing deblocking filtering on one or more of the plurality of blocks of video data based on the coding mode used to code the at least one block and the assigned non zero QP value for the at least one block.