公开(公告)号：US09723331B2

公开(公告)日：2017-08-01

申请号：US15353367

申请日：2016-11-16

Applicant: QUALCOMM Incorporated

Inventor： Geert Van der Auwera ,  Ye-Kui Wang ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N19/86 ,  H04N19/117 ,  H04N19/61 ,  H04N19/124 ,  H04N19/13 ,  H04N19/105 ,  H04N19/159 ,  H04N19/43 ,  H04N19/176 ,  H04N19/174 ,  H04N19/172 ,  H04N19/184

CPC classification number: H04N19/86 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/43 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

Abstract: This disclosure describes techniques for signaling deblocking filter parameters for a current slice of video data with reduced bitstream overhead. Deblocking filter parameters may be coded in one or more of a picture layer parameter set and a slice header. The techniques reduce a number of bits used to signal the deblocking filter parameters by coding a first syntax element that indicates whether deblocking filter parameters are present in both the picture layer parameter set and the slice header, and only coding a second syntax element in the slice header when both sets of deblocking filter parameters are present. Coding the second syntax element is eliminated when deblocking filter parameters are present in only one of the picture layer parameter set or the slice header. The second syntax element indicates which set of deblocking filter parameters to use to define a deblocking filter applied to a current slice.

公开(公告)号：US09667996B2

公开(公告)日：2017-05-30

申请号：US14496991

申请日：2014-09-25

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Geert Van der Auwera ,  Li Zhang ,  Hongbin Liu

IPC: H04N19/597 ,  H04N19/53 ,  H04N19/56 ,  H04N19/196 ,  H04N19/52

CPC classification number: H04N19/597 ,  H04N19/197 ,  H04N19/52 ,  H04N19/53 ,  H04N19/56

Abstract: Techniques are described for sub-prediction unit (PU) based motion prediction for video coding in HEVC and 3D-HEVC. In one example, the techniques include an advanced temporal motion vector prediction (TMVP) mode to predict sub-PUs of a PU in single layer coding for which motion vector refinement may be allowed. The advanced TMVP mode includes determining motion vectors for the PU in at least two stages to derive motion information for the PU that includes different motion vectors and reference indices for each of the sub-PUs of the PU. In another example, the techniques include storing separate motion information derived for each sub-PU of a current PU predicted using a sub-PU backward view synthesis prediction (BVSP) mode even after motion compensation is performed. The additional motion information stored for the current PU may be used to predict subsequent PUs for which the current PU is a neighboring block.

公开(公告)号：US20170064339A1

公开(公告)日：2017-03-02

申请号：US15353367

申请日：2016-11-16

Applicant: QUALCOMM Incorporated

Inventor： Geert Van der Auwera ,  Ye-Kui Wang ,  Marta Karczewicz

IPC: H04N19/86 ,  H04N19/61 ,  H04N19/43 ,  H04N19/13 ,  H04N19/105 ,  H04N19/159 ,  H04N19/117 ,  H04N19/124

CPC classification number: H04N19/86 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/43 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

Abstract: This disclosure describes techniques for signaling deblocking filter parameters for a current slice of video data with reduced bitstream overhead. Deblocking filter parameters may be coded in one or more of a picture layer parameter set and a slice header. The techniques reduce a number of bits used to signal the deblocking filter parameters by coding a first syntax element that indicates whether deblocking filter parameters are present in both the picture layer parameter set and the slice header, and only coding a second syntax element in the slice header when both sets of deblocking filter parameters are present. Coding the second syntax element is eliminated when deblocking filter parameters are present in only one of the picture layer parameter set or the slice header. The second syntax element indicates which set of deblocking filter parameters to use to define a deblocking filter applied to a current slice.

Abstract translation: 本公开描述了用于以减少的比特流开销为视频数据的当前切片信令去块滤波器参数的信号的技术。 去块滤波器参数可以在图像层参数集和片头中的一个或多个中被编码。 这些技术通过编码表示去块滤波器参数是否存在于图像层参数集和片头中的第一语法元素来减少用于通知去块滤波器参数的位数，并且仅对切片中的第二语法元素进行编码 当存在两组去块滤波器参数时，头部。 当去块滤波器参数仅存在于图像层参数集或片头中的一个时，消除了第二语法元素的编码。 第二个语法元素指出哪一组去块滤波器参数用于定义应用于当前片的去块滤波器。

公开(公告)号：US09560383B2

公开(公告)日：2017-01-31

申请号：US14927150

申请日：2015-10-29

Applicant: QUALCOMM Incorporated

Inventor： Geert Van der Auwera ,  Marta Karczewicz ,  Xianglin Wang

IPC: H04N19/86 ,  H04N19/117 ,  H04N19/82 ,  H04N19/176 ,  H04N19/70 ,  H04N19/157 ,  H04N19/182 ,  H04N19/12 ,  H04N19/61

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/12 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82

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.

Abstract translation: 用于对视频数据进行编码的技术包括对多个视频数据块进行编码，其中使用作为帧内脉码调制（IPCM）编码模式和编码模式之一的编码模式来对多个视频数据块中的至少一个块进行编码 无损编码模式。 在一些示例中，无损编码模式可以使用预测。 所述技术还包括为使用编码模式编码的至少一个块分配非零量化参数（QP）值。 所述技术还包括：基于用于对所述至少一个块进行编码的编码模式和所述至少一个块的所分配的非零QP值，对所述多个视频数据块中的一个或多个块执行去块滤波。

公开(公告)号：US09363516B2

公开(公告)日：2016-06-07

申请号：US13744019

申请日：2013-01-17

Applicant: Qualcomm Incorporated

Inventor： Geert Van der Auwera ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/26 ,  H04N19/85 ,  H04N19/117 ,  H04N19/186 ,  H04N19/82

CPC classification number: H04N19/85 ,  H04N19/117 ,  H04N19/186 ,  H04N19/82

Abstract: A video coding device is configured to obtain an array of sample values. The sample values may be formatted according to a 4:2:0, 4:2:2, or 4:4:4 chroma format. The video coding device determines whether to apply a first filter to rows of chroma sample values associated with defined horizontal edges within the array. The video coding device determines whether to apply a second filter to columns of chroma sample values associated with defined vertical edges. The horizontal and vertical edges may be separated by a number of chroma samples according to a deblocking grid.

Abstract translation: 视频编码装置被配置为获得样本值的数组。 样本值可以根据4：2：0,4：2：2或4：4：4色度格式进行格式化。 视频编码装置确定是否将第一滤波器应用于与阵列内的限定水平边缘相关联的色度采样值的行。 视频编码装置确定是否对与定义的垂直边缘相关联的色度样本值的列应用第二滤波器。 根据解块栅格，水平和垂直边缘可以被多个色度样本分开。

公开(公告)号：US09282344B2

公开(公告)日：2016-03-08

申请号：US13666610

申请日：2012-11-01

Applicant: Qualcomm Incorporated

Inventor： Geert Van der Auwera ,  Marta Karczewicz

IPC: H04N7/12 ,  G06F13/00 ,  H04N19/82 ,  H04N19/176 ,  H04N19/593 ,  H04N19/117 ,  H04N19/136

CPC classification number: H04N19/82 ,  H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/593

Abstract: In one example, a video coding device is configured to intra-predict a block of video data, using values of pixels along a primary boundary of the block, to form a predicted block, determine whether to filter the predicted block using data of a secondary boundary of the block, and filter the predicted block using data of the secondary boundary in response to determining to filter the predicted block. The video coding device may determine whether to filter the predicted block based on a comparison of a Laplacian value or a gradient difference value to a threshold. The determination of whether to filter the predicted block may be based at least in part on a boundary relationship, e.g., the relationship of one boundary to another, or of a boundary to pixel values of the predicted block.

Abstract translation: 在一个示例中，视频编码设备被配置为使用沿着该块的主边界的像素的值来预测视频数据块，以形成预测块，使用二次数据的数据来确定是否对预测块进行过滤 边界，并且响应于确定过滤所预测的块而使用次级边界的数据来过滤所预测的块。 视频编码装置可以基于拉普拉斯算子或梯度差值与阈值的比较来确定是否对预测块进行过滤。 是否过滤预测块的确定可以至少部分地基于边界关系，例如一个边界与另一个边界的关系，或预测块的边界到像素值。

公开(公告)号：US09137547B2

公开(公告)日：2015-09-15

申请号：US14473897

申请日：2014-08-29

Applicant: QUALCOMM Incorporated

Inventor： Geert Van der Auwera ,  Ye-Kui Wang ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N19/70 ,  H04N19/46 ,  H04N19/117 ,  H04N19/174 ,  H04N19/86

CPC classification number: H04N19/86 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/43 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

Abstract: This disclosure describes techniques for signaling deblocking filter parameters for a current slice of video data with reduced bitstream overhead. Deblocking filter parameters may be coded in one or more of a picture layer parameter set and a slice header. The techniques reduce a number of bits used to signal the deblocking filter parameters by coding a first syntax element that indicates whether deblocking filter parameters are present in both the picture layer parameter set and the slice header, and only coding a second syntax element in the slice header when both sets of deblocking filter parameters are present. Coding the second syntax element is eliminated when deblocking filter parameters are present in only one of the picture layer parameter set or the slice header. The second syntax element indicates which set of deblocking filter parameters to use to define a deblocking filter applied to a current slice.

Abstract translation: 本公开描述了用于以减少的比特流开销为视频数据的当前切片信令去块滤波器参数的信号的技术。 去块滤波器参数可以在图像层参数集和片头中的一个或多个中被编码。 这些技术通过编码表示去块滤波器参数是否存在于图像层参数集和片头中的第一语法元素来减少用于通知去块滤波器参数的位数，并且仅对切片中的第二语法元素进行编码 当存在两组去块滤波器参数时，头部。 当去块滤波器参数仅存在于图像层参数集或片头中的一个时，消除了第二语法元素的编码。 第二个语法元素指出哪一组去块滤波器参数用于定义应用于当前片的去块滤波器。

公开(公告)号：US20150085935A1

公开(公告)日：2015-03-26

申请号：US14496991

申请日：2014-09-25

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Geert Van der Auwera ,  Li Zhang ,  Hongbin Liu

IPC: H04N19/597 ,  H04N19/583 ,  H04N19/51

CPC classification number: H04N19/597 ,  H04N19/197 ,  H04N19/52 ,  H04N19/53 ,  H04N19/56

Abstract: Techniques are described for sub-prediction unit (PU) based motion prediction for video coding in HEVC and 3D-HEVC. In one example, the techniques include an advanced temporal motion vector prediction (TMVP) mode to predict sub-PUs of a PU in single layer coding for which motion vector refinement may be allowed. The advanced TMVP mode includes determining motion vectors for the PU in at least two stages to derive motion information for the PU that includes different motion vectors and reference indices for each of the sub-PUs of the PU. In another example, the techniques include storing separate motion information derived for each sub-PU of a current PU predicted using a sub-PU backward view synthesis prediction (BVSP) mode even after motion compensation is performed. The additional motion information stored for the current PU may be used to predict subsequent PUs for which the current PU is a neighboring block.

公开(公告)号：US08964832B2

公开(公告)日：2015-02-24

申请号：US14270155

申请日：2014-05-05

Applicant: QUALCOMM Incorporated

Inventor： In Suk Chong ,  Geert Van der Auwera ,  Marta Karczewicz

IPC: H04N19/105 ,  H04N19/463 ,  H04N19/117 ,  H04N19/167 ,  H04N19/196 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/117 ,  H04N19/14 ,  H04N19/167 ,  H04N19/176 ,  H04N19/196 ,  H04N19/463 ,  H04N19/70

Abstract: This disclosure describes techniques for performing sample adaptive offset signaling and coding in a video coding process. Techniques of the disclosure include both a merge-based and prediction-based signaling process for sample adaptive offset information (i.e., offset values and offset type). The techniques includes determining offset information for a current partition, comparing the offset information of the current partition with offset information of one or more neighbor partitions, coding a merge instruction in the case that the offset information of one of the one or more neighbor partitions is the same as the offset information of the current partition, and coding one of a plurality of prediction instructions in the case that the offset information of the one or more neighbor partitions is not the same as the offset information of the current partition.

Abstract translation: 本公开描述了在视频编码过程中执行采样自适应偏移信令和编码的技术。 本公开的技术包括用于样本自适应偏移信息（即，偏移值和偏移类型）的基于合并和基于预测的信令过程。 所述技术包括确定当前分区的偏移信息，将当前分区的偏移信息与一个或多个相邻分区的偏移信息进行比较，在一个或多个相邻分区之一的偏移信息为 与当前分区的偏移信息相同，并且在一个或多个相邻分区的偏移信息与当前分区的偏移信息不相同的情况下编码多个预测指令之一。

公开(公告)号：US20140169483A1

公开(公告)日：2014-06-19

申请号：US13720499

申请日：2012-12-19

Applicant: QUALCOMM INCORPORATED

Inventor： Sanjeev Kumar ,  Geert Van der Auwera ,  Kai Wang ,  Shu Xiao ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/423 ,  H04N19/80 ,  H04N19/82

Abstract: An apparatus configured to filter video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores video information comprising at least two adjacent video blocks, each video block comprising a plurality of video samples, and each video sample having a bit depth. The processor determines a filtered video sample based at least in part on a video sample and an adjustment value. The processor determines the adjustment value at least in part from an input with a limited bit depth. The input is determined from a set of one or more video samples, and its bit depth is limited such that it is less than the bit depth of the one or more video samples.

Abstract translation: 被配置为根据某些方面对视频信息进行滤波的装置包括存储器单元和与存储器单元通信的处理器。 存储单元存储包括至少两个相邻视频块的视频信息，每个视频块包括多个视频样本，并且每个视频样本具有位深度。 处理器至少部分地基于视频样本和调整值来确定经滤波的视频样本。 处理器至少部分地从具有有限位深度的输入端确定调整值。 输入是从一组一个或多个视频样本确定的，并且其位深度受到限制，使得它小于一个或多个视频采样的位深度。