公开(公告)号：US09807398B2

公开(公告)日：2017-10-31

申请号：US14547280

申请日：2014-11-19

Applicant: Broadcom Corporation

Inventor： Minhua Zhou ,  Wade Keith Wan ,  Zhijie Yang ,  Peisong Chen

IPC: H04N19/50 ,  H04N19/176 ,  H04N19/147 ,  H04N19/124 ,  H04N19/127 ,  H04N19/19

CPC classification number: H04N19/176 ,  H04N19/124 ,  H04N19/127 ,  H04N19/147 ,  H04N19/19

Abstract: A system may receive an input stream for a coding operation. The system may determine available coding modes for the coding operation. The system may include coding selection logic that may determine a coding mode in response to the based on the available selection of coding modes. The coding selection logic may use the selected coding mode to determine a coding strategy. The selection logic may send an indication of the selected coding mode and coding strategy to coding logic to support execution of the coding operation, which may use the selected coding mode and coding strategy.

公开(公告)号：US20160173870A1

公开(公告)日：2016-06-16

申请号：US15053304

申请日：2016-02-25

Applicant: BROADCOM CORPORATION

Inventor： Peisong Chen ,  Wade K. Wan

IPC: H04N19/10 ,  H04N19/86 ,  H04N19/82

Abstract: Sample adaptive offset (SAO) in accordance with video coding. SAO filtering may be performed before de-blocking processing (e.g., in accordance with video signal decoding and/or encoding). For example, a receiver and/or decoder communication device may receive signaling from a transmitter and/or encoder communication device that includes various band offsets. Corresponding band indices may be determined via analysis of the received video signal (e.g., received from the transmitter and/or encoder communication device), inferentially without requiring signaling of such band indices from the transmitter and/or encoder communication device. Upon appropriate analysis of one or more largest coding units (LCUs) generated from the video signal to determine a pixel value distribution (e.g., which may be using a histogram in one instance), then based on that pixel value distribution, the band indices are identified and the band offsets applied thereto.

Abstract translation: 根据视频编码采样自适应偏移（SAO）。 可以在去块处理（例如，根据视频信号解码和/或编码）之前执行SAO滤波。 例如，接收机和/或解码器通信设备可以从包括各种频带偏移的发射机和/或编码器通信设备接收信令。 可以通过分析接收的视频信号（例如，从发射机和/或编码器通信设备接收）来确定相应的频带索引，而不需要来自发射机和/或编码器通信设备的这种频带索引的信令。 在从视频信号产生的一个或多个最大编码单元（LCU）进行适当分析以确定像素值分布（例如，其可以在一个实例中使用直方图）时，则基于该像素值分布，带索引是 识别并施加带偏移。

公开(公告)号：US20130235926A1

公开(公告)日：2013-09-12

申请号：US13781075

申请日：2013-02-28

Applicant: BROADCOM CORPORATION

Inventor： Wade K. Wan ,  Peisong Chen

IPC: H04N7/26

CPC classification number: H04N19/46 ,  H04N19/103

Abstract: Memory efficient video parameter processing. A communication system including at least two respective devices, namely, a transmitter device and a receiver device, operates with significant reduction in the amount of signaling provided between those respective devices. Such devices may be transceiver devices. Considering such a transmitter device that includes an encoder, such as a video encoder, and a receiver device that includes a decoder, such as a video decoder, and output bitstream corresponding to an encoded video signal may be provided from the transmitter device and received by the receiver device. Such an output bitstream may be generated by a video encoder within the transmitter device and may subsequently undergo appropriate processing by a video decoder within the receiver device. One or more frame-based signals, corresponding respectively to the number of blocks, may be communicated as being respectively limited to at most one step of recursion among the various blocks.

Abstract translation: 内存高效的视频参数处理。 包括至少两个相应设备（即，发射机设备和接收机设备）的通信系统以显着降低在各个设备之间提供的信令量的方式进行操作。 这样的设备可以是收发器设备。 考虑到包括诸如视频编码器的编码器和包括解码器（例如视频解码器）和与编码视频信号相对应的输出比特流的接收机设备的这种发射机设备可以从发射机设备提供并由 接收机设备。 这样的输出比特流可以由发射机设备内的视频编码器生成，并且随后可以由接收机设备内的视频解码器进行适当的处​​理。 可以将分别对应于块的数量的一个或多个基于帧的信号分别限制为在各个块之间至多一个递归步骤。

公开(公告)号：US09571837B2

公开(公告)日：2017-02-14

申请号：US14148623

申请日：2014-01-06

Applicant: BROADCOM CORPORATION

Inventor： Minhua Zhou ,  Peisong Chen

IPC: H04N11/02 ,  H04N19/103 ,  H04N19/186 ,  H04N19/176 ,  H04N19/132 ,  H04N19/154 ,  H04N19/194

CPC classification number: H04N19/103 ,  H04N19/132 ,  H04N19/154 ,  H04N19/176 ,  H04N19/186 ,  H04N19/194

Abstract: A method for color blending prevention in video coding may include selecting, in a mode decision phase of an encoding of a current video frame, to encode an output bitstream in skip mode, wherein the skip mode includes altering encoding of the coding unit by setting luma component transform coefficients for the coding unit to zero, revaluating the selection of the skip mode based on quantized chroma coefficients, the quantized chroma coefficients generated from transformed and quantized residual chroma components, confirming the selection of the skip mode when there are no non-zero quantized chroma coefficients, and revoking the selection of the skip mode when there are non-zero quantized chroma coefficients, wherein the non-zero quantized chroma coefficients are transmitted when the selection of the skip mode is revoked.

Abstract translation: 视频编码中的防混色方法可以包括在当前视频帧的编码的模式判定阶段中选择以跳过模式编码输出比特流，其中跳过模式包括通过设置亮度来改变编码单元的编码 用于编码单元的分量变换系数为零，基于量化色度系数重新估计跳过模式的选择，从经变换和量化的残余色度分量产生的量化色度系数，确认当没有非零时选择跳跃模式 量化色度系数，并且当存在非零量化色度系数时，撤销跳过模式的选择，其中当跳过模式的选择被撤销时，发送非零量化色度系数。

公开(公告)号：US09332269B2

公开(公告)日：2016-05-03

申请号：US13648187

申请日：2012-10-09

Applicant: Broadcom Corporation

Inventor： Peisong Chen ,  Wade Wan

IPC: H04N19/463 ,  H04N19/70

CPC classification number: H04N19/463 ,  H04N19/70

Abstract: An example video coding system may include a processor and memory. The processor may determine sets of parameters for slices that correspond to a picture of a video sequence, and determine, and store in overhead information, the set of parameters that has the highest commonality. The processor may determine for each slice whether the set of parameters determined for the slice is equivalent to the set of parameters stored in overhead information. If the set of parameters for the slice is equivalent to the set of parameters stored in overhead information, the processor may store an indication in a slice header of the slice that indicates that the set of parameters stored in overhead information applies to the slice, otherwise the processor may store in the slice header of the slice the determined set of parameters for the slice. The processor may transmit the overhead information and the slices.

Abstract translation: 示例性视频编码系统可以包括处理器和存储器。 处理器可以确定与视频序列的图片相对应的片段的参数集合，并且确定和存储开销信息中具有最高共同性的参数集合。 处理器可以针对每个切片确定针对切片确定的参数集是否等于存储在开销信息中的参数集合。 如果切片的参数集合等效于存储在开销信息中的参数集合，则处理器可以在切片的片标题中存储指示，其指示存储在开销信息中的参数集合适用于片，否则 处理器可以在片的片头中存储用于片的所确定的参数集合。 处理器可以传输开销信息和片。

公开(公告)号：US20160094855A1

公开(公告)日：2016-03-31

申请号：US14547280

申请日：2014-11-19

Applicant: Broadcom Corporation

Inventor： Minhua Zhou ,  Wade Keith Wan ,  Zhijie Yang ,  Peisong Chen

IPC: H04N19/50 ,  H04N19/184 ,  H04N19/593 ,  H04N19/176

CPC classification number: H04N19/176 ,  H04N19/124 ,  H04N19/127 ,  H04N19/147 ,  H04N19/19

Abstract: A system may receive an input stream for a coding operation. The system may determine available coding modes for the coding operation. The system may include coding selection logic that may determine a coding mode in response to the based on the available selection of coding modes. The coding selection logic may use the selected coding mode to determine a coding strategy. The selection logic may send an indication of the selected coding mode and coding strategy to coding logic to support execution of the coding operation, which may use the selected coding mode and coding strategy.

Abstract translation: 系统可以接收用于编码操作的输入流。 系统可以确定用于编码操作的可用编码模式。 系统可以包括可以基于编码模式的可用选择来响应于确定编码模式的编码选择逻辑。 编码选择逻辑可以使用选择的编码模式来确定编码策略。 选择逻辑可以将所选择的编码模式和编码策略的指示发送到编码逻辑，以支持编码操作的执行，其可以使用所选择的编码模式和编码策略。

公开(公告)号：US20130208810A1

公开(公告)日：2013-08-15

申请号：US13623765

申请日：2012-09-20

Applicant: Broadcom Corporation

Inventor： Ba-Zhong Shen ,  Wade K. Wan ,  Peisong Chen

IPC: H04N7/24 ,  H04N9/67

CPC classification number: H04N19/86 ,  H04N19/48 ,  H04N19/82

Abstract: Frequency domain sample adaptive offset (SAO). Video processing of a first signal operates to generate a second video signal such that at least one characteristic of a first portion of video information of the first video signal is replicated in generating a second portion of video information, such that the first portion of video information and the second portion of video information undergo combination to generate the second video signal. Such use of the first video signal may involve replication and scaling of the first video information to generate the second portion of video information. One possible characteristic of the first portion of video information may correspond to an energy profile as a function of frequency. One or more portions of the first video signal may be employed to generate different respective portions of the second signal. Such video processing operations may be performed on a block by block basis.

Abstract translation: 频域采样自适应偏移（SAO）。 第一信号的视频处理操作以产生第二视频信号，使得在生成视频信息的第二部分时复制第一视频信号的视频信息的第一部分的至少一个特征，使得视频信息的第一部分 并且视频信息的第二部分经过组合以产生第二视频信号。 第一视频信号的这种使用可能涉及复制和缩放第一视频信息以产生视频信息的第二部分。 视频信息的第一部分的一个可能的特征可以对应于作为频率的函数的能量分布。 可以采用第一视频信号的一个或多个部分来产生第二信号的不同的相应部分。 这样的视频处理操作可以逐个块地执行。