公开(公告)号：US09877024B2

公开(公告)日：2018-01-23

申请号：US14856192

申请日：2015-09-16

Applicant: QUALCOMM Incorporated

Inventor： In Suk Chong ,  Geert Van der Auwera ,  Chengjie Tu ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N11/02 ,  H04N19/117 ,  H04N19/176 ,  H04N19/61 ,  H04N19/82

CPC classification number: H04N19/117 ,  H04N19/176 ,  H04N19/61 ,  H04N19/82

Abstract: A device for encoding video data may be configured to encode video data according to a set of sample adaptive offset (SAO) types; perform a plurality of coding passes to test a subset of the SAO types for a first block of video data, wherein the subset is smaller than the set; select from the subset of SAO types an SAO type for the first block of video data; and generate for inclusion in an encoded bitstream, information for identifying the selected SAO type for the first block.

公开(公告)号：US09762921B2

公开(公告)日：2017-09-12

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 ,  H04N19/423 ,  H04N19/80 ,  H04N19/82

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.

公开(公告)号：US09538200B2

公开(公告)日：2017-01-03

申请号：US13743592

申请日：2013-01-17

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：US20160261874A1

公开(公告)日：2016-09-08

申请号：US14856192

申请日：2015-09-16

Applicant: QUALCOMM Incorporated

Inventor： In Suk Chong ,  Geert Van der Auwera ,  Chengjie Tu ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N19/174 ,  H04N19/157 ,  H04N19/91 ,  H04N19/117 ,  H04N19/182 ,  H04N19/186

CPC classification number: H04N19/117 ,  H04N19/176 ,  H04N19/61 ,  H04N19/82

Abstract: A device for encoding video data may be configured to encode video data according to a set of sample adaptive offset (SAO) types; perform a plurality of coding passes to test a subset of the SAO types for a first block of video data, wherein the subset is smaller than the set; select from the subset of SAO types an SAO type for the first block of video data; and generate for inclusion in an encoded bitstream, information for identifying the selected SAO type for the first block.

Abstract translation: 用于编码视频数据的设备可以被配置为根据一组采样自适应偏移（SAO）类型对视频数据进行编码; 执行多个编码遍以测试第一视频数据块的SAO类型的子集，其中所述子集小于所述集合; 从SAO类型的子集中选择第一个视频数据块的SAO类型; 并且生成用于包括在编码比特流中，用于识别用于第一块的所选择的SAO类型的信息。

公开(公告)号：US09426466B2

公开(公告)日：2016-08-23

申请号：US13922851

申请日：2013-06-20

Applicant: Qualcomm Incorporated

Inventor： Geert Van der Auwera ,  Marta Karczewicz

IPC: H04N19/122 ,  H04N19/60 ,  H04N19/176 ,  H04N19/12 ,  H04N19/186 ,  H04N19/157 ,  H04N19/46

CPC classification number: H04N19/60 ,  H04N19/12 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

Abstract: A device for coding video data includes a video coder configured to: determine for a chroma transform block (TB) a sub-sampling format for the chroma TB; based on the sub-sampling format for the chroma TB, identify one or more corresponding luma TBs; determine, for each of the one or more corresponding luma TBs, if the corresponding luma TB is coded using a transform skip mode; and, based on a number of the one or more corresponding luma TBs coded using the transform skip mode being greater than or equal to a threshold value, determine that the chroma TB is coded in the transform skip mode.

Abstract translation: 用于编码视频数据的设备包括视频编码器，其被配置为：为色度变换块（TB）确定色度TB的子采样格式; 基于色度TB的子采样格式，识别一个或多个对应的亮度TB; 对于一个或多个对应亮度TB中的每一个，确定如果使用变换跳过模式对相应亮度TB进行编码; 并且基于使用变换跳过模式编码的一个或多个相应亮度TB的数量大于或等于阈值的数量，确定色变TB以变换跳过模式被编码。

公开(公告)号：US20160050443A1

公开(公告)日：2016-02-18

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 ,  H04N19/157 ,  H04N19/176 ,  H04N19/117 ,  H04N19/12 ,  H04N19/182 ,  H04N19/61 ,  H04N19/82

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.

公开(公告)号：US20160037125A1

公开(公告)日：2016-02-04

申请号：US14811569

申请日：2015-07-28

Applicant: QUALCOMM Incorporated

Inventor： Geert Van der Auwera ,  Muhammed Zeyd Coban ,  Marta Karczewicz ,  Nikolai Konrad Leung

IPC: H04N7/14

CPC classification number: H04N7/147 ,  H04L43/0852 ,  H04L43/0864 ,  H04L43/0894 ,  H04L43/106 ,  H04L43/16 ,  H04L47/12 ,  H04L47/2416 ,  H04L47/263 ,  H04L47/283 ,  H04N7/148 ,  H04N7/15 ,  H04N7/152 ,  H04N19/40 ,  H04N19/61 ,  H04N21/2365 ,  H04N21/23655 ,  H04N21/2662 ,  H04N21/4347 ,  Y02D50/10

Abstract: In an example, a method of processing data includes determining, by a receiver device, an allowable excess delay parameter based on a difference between a time at which received data is received by the receiver device and a time at which the received data is scheduled to be played out, where the allowable excess delay parameter indicates an amount of delay that is supportable by a channel between a sender device and the receiver device. The method also includes determining, by the receiver device, a sender bit rate increase for increasing a bit rate at which data is to be sent from the sender device to the receiver device based on the determined allowable excess delay parameter, and transmitting an indication of the sender bit rate increase to the sender device.

Abstract translation: 在一个示例中，处理数据的方法包括：基于接收机设备接收到的数据的时间与所接收的数据被调度的时间之间的差异，由接收机设备确定允许的超时延迟参数 播放，其中允许的超额延迟参数指示可由发送器设备和接收器设备之间的通道支持的延迟量。 该方法还包括由接收机设备确定发送器比特率增加，用于基于所确定的允许超额延迟参数来增加要从发送方设备向接收方设备发送数据的比特率，并发送 发送方比特率增加到发送方设备。

公开(公告)号：US20140241417A1

公开(公告)日：2014-08-28

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 ,  H04N19/196 ,  H04N19/70 ,  H04N19/167

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：US20130259120A1

公开(公告)日：2013-10-03

申请号：US13793942

申请日：2013-03-11

Applicant: QUALCOMM INCORPORATED

Inventor： Geert Van der Auwera ,  Rajan Laxman Joshi ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/126 ,  H04N19/117 ,  H04N19/157 ,  H04N19/176 ,  H04N19/86

Abstract: A device may include a video coder configured to determine an equivalent quantization parameter (QP) for a decoded block of video data using a quantization matrix for the decoded block of video data, determine deblocking parameters based on the determined equivalent QP, and deblock an edge of the decoded block based on the determined deblocking parameters. In particular, the video coder may determine equivalent QPs for two neighboring blocks defining a common edge, and deblock the common edge based on the equivalent QPs. The video coder may determine deblocking parameters, such as β and tc values, based on the equivalent QPs. The video coder may then deblock the common edge based on the deblocking parameters, e.g., determine whether to deblock the common edge, determine whether to apply a strong or a weak filter to the common edge, and determine a width (in number of pixels) for a weak filter.

Abstract translation: 设备可以包括视频编码器，其被配置为使用用于解码的视频数据块的量化矩阵来确定解码的视频数据块的等效量化参数（QP），基于所确定的等效QP来确定解块参数，并且去边缘 基于所确定的去块参数。 特别地，视频编码器可以确定定义公共边缘的两个相邻块的等效QP，并且基于等效QP去除公共边缘。 视频编码器可以基于等效的QP来确定去块参数，诸如β和tc值。 然后，视频编码器可以基于去块参数去除公共边缘，例如，确定是否去除公共边缘，确定是否对公共边缘应用强或弱滤波器，以及确定宽度（以像素数量计） 用于弱过滤器。

公开(公告)号：US20130114708A1

公开(公告)日：2013-05-09

申请号：US13666610

申请日：2012-11-01

Applicant: Qualcomm Incorporated

Inventor： Geert Van der Auwera ,  Marta Karczewicz

IPC: H04N7/32

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。