公开(公告)号：PH12014502365B1

公开(公告)日：2015-01-12

申请号：PH12014502365

申请日：2014-10-22

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  WANG XIANGLIN

IPC: H04N19/124 ,  H04N19/126 ,  H04N19/61 ,  H04N19/70

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：PH12014502045B1

公开(公告)日：2014-12-10

申请号：PH12014502045

申请日：2014-09-15

Applicant: QUALCOMM INC

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

IPC: H04N1/409 ,  H04N19/117 ,  H04N19/14 ,  H04N19/174 ,  H04N19/186 ,  H04N19/82 ,  H04N19/86

Abstract: In one example, an apparatus for processing video data comprises a video coder configured to, for each of the one or more chrominance components, calculate a chrominance quantization parameter for a common edge between two blocks of video data based on a first luminance quantization parameter for the first block of video data, a second luminance quantization parameter for the second block of video data, and a chrominance quantization parameter offset value for the chrominance component. The video coder is further configured to determine a strength for a deblocking filter for the common edge based on the chrominance quantization parameter for the chrominance component, and apply the deblocking filter according to the determined strength to deblock the common edge.

公开(公告)号：SG11201406585SA

公开(公告)日：2014-11-27

申请号：SG11201406585S

申请日：2013-04-26

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  WANG XIANGLIN

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：AU2013251390A1

公开(公告)日：2014-11-13

申请号：AU2013251390

申请日：2013-04-26

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  WANG XIANGLIN

IPC: H04N19/00 ,  H04N19/61

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：AU2013246275A1

公开(公告)日：2014-10-23

申请号：AU2013246275

申请日：2013-04-02

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  SEREGIN VADIM ,  WANG XIANGLIN ,  COBAN MUHAMMED ZEYD

IPC: H04N19/00

Abstract: In an example, aspects of this disclosure relate to a method for decoding a reference index syntax element in a video decoding process that includes decoding at least one bin of a reference index value with a context coding mode of a context-adaptive binary arithmetic coding (CABAC) process. The method also includes decoding, when the reference index value comprises more bins than the at least one bin coded with the context coded mode, at least another bin of the reference index value with a bypass coding mode of the CABAC process, and binarizing the reference index value.

公开(公告)号：MX2014000760A

公开(公告)日：2014-05-07

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：MX2013014710A

公开(公告)日：2014-02-27

申请号：MX2013014710

申请日：2012-06-19

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  ZHENG YUNFEI ,  WANG XIANGLIN

IPC: H04N19/593

Abstract: Esta divulgación presenta métodos y sistemas para codificar video en modo de fusión de un proceso de predicción de vector de movimiento; un método para codificar datos de video puede determinar un conjunto de candidatos de fusión para una unidad de predicción actual de una unidad de codificación actual, en donde el conjunto de candidatos de fusión es determinado sin comparar la información de movimiento de un candidato de fusión en el conjunto de candidatos de fusión con información de movimiento de cualesquiera otras unidades de predicción, y ejecutar un proceso de predicción de vector de movimiento de fusión para la unidad de predicción actual utilizando el conjunto de candidatos de fusión; el método además puede comprender, excluir candidatos de fusión del conjunto de candidatos de fusión que están dentro de otra unidad de predicción de la unidad de codificación actual.

公开(公告)号：AU2012273109A1

公开(公告)日：2014-01-09

申请号：AU2012273109

申请日：2012-06-19

Applicant: QUALCOMM INC

Inventor： ZHENG YUNFEI ,  WANG XIANGLIN ,  KARCZEWICZ MARTA

IPC: H04N7/26 ,  H04N7/36 ,  H04N7/46 ,  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：SG195213A1

公开(公告)日：2013-12-30

申请号：SG2013088299

申请日：2012-06-05

Applicant: QUALCOMM INC

Inventor： ZHENG YUNFEI ,  WANG XIANGLIN ,  KARCZEWICZ MARTA

Abstract: A unified candidate block set for both adaptive motion vector prediction (AMVP) mode and merge mode for use in inter-prediction is proposed. In general, the same candidate block set is used regardless of which motion vector prediction mode (e.g., merge mode or AMVP mode) is used. In other examples of this disclosure, one candidate block in a set of candidate blocks is designated as an additional candidate block. The additional candidate block is used if one of the other candidate blocks is unavailable. Also, the disclosure proposes a checking pattern where the left candidate block is checked before the below left candidate block. Also, the above candidate block is checked before the right above candidate block.

公开(公告)号：SG191201A1

公开(公告)日：2013-07-31

申请号：SG2013046545

申请日：2012-01-05

Applicant: QUALCOMM INC

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

IPC: H04N19/593

Abstract: For a block of video data, a video encoder can signal to a video decoder, using a context-based adaptive binary arithmetic coding (CABAC) process, a selected intra-prediction mode using a codeword that is mapped to a modified intra-prediction mode index. The video decoder can perform a context-based adaptive binary arithmetic coding (CABAC) process to determine the codeword signaled by the video encoder, determine the modified intra-prediction mode index corresponding to the codeword, determine most probable modes based on a context, map the modified intra-prediction mode index to an intra-prediction mode index by comparing the modified intra-prediction mode index to the mode indexes of the most probable modes, and determine the selected intra-prediction mode used to encode the block of video data based on the intra-prediction mode index.