公开(公告)号：US20140098857A1

公开(公告)日：2014-04-10

申请号：US14044627

申请日：2013-10-02

Applicant: Broadcom Corporation

Inventor： Alexander Garland MacInnis ,  Frederick George Walls

IPC: H04N7/26

CPC classification number: H04N19/44 ,  H04N19/124 ,  H04N19/14 ,  H04N19/149 ,  H04N19/15 ,  H04N19/152 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196 ,  H04N19/46

Abstract: A system adjusts the quantization parameter used to encode an image sample (e.g., pixel component). The system accesses a quantization parameter for encoding a current image pixel from an implicit rate control and obtains a measure of another image sample within a particular distance from the sample. When the measure meets a predetermined criterion, the system adjusts the quantization parameter, encodes the pixel after adjusting the quantization parameter, and explicitly indicates the adjusting of the quantization parameter to a decoding system.

Abstract translation: 系统调整用于编码图像样本（例如，像素分量）的量化参数。 该系统从隐式速率控制中访问用于对当前图像像素进行编码的量化参数，并且获得与样本特定距离内的另一图像样本的度量。 当测量满足预定标准时，系统调整量化参数，在调整量化参数之后对像素进行编码，并且明确地指示将量化参数调整到解码系统。

公开(公告)号：US09906817B2

公开(公告)日：2018-02-27

申请号：US15164222

申请日：2016-05-25

Applicant: Broadcom Corporation

Inventor： Alexander Garland MacInnis ,  Frederick George Walls

IPC: G06K9/00 ,  H04N19/94 ,  H04N19/593 ,  H04N19/103 ,  H04N19/154 ,  H04N19/182

CPC classification number: H04N19/94 ,  H04N19/103 ,  H04N19/154 ,  H04N19/182 ,  H04N19/593

Abstract: Coding circuitry may implement an indexed set of color values that stores color values for a neighbor pixel group. The coding circuitry may obtain a current pixel group for coding. The coding circuitry may code the current pixel group using the indexed set of color values when an indication that there is a compression advantage to coding using the indexed set of color values is present within an input stream. When the indication is not present, the coding circuitry may code the current pixel group using another coding technique.

公开(公告)号：US09883180B2

公开(公告)日：2018-01-30

申请号：US14044627

申请日：2013-10-02

Applicant: Broadcom Corporation

Inventor： Alexander Garland MacInnis ,  Frederick George Walls

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/124 ,  H04N19/46 ,  H04N19/196 ,  H04N19/15 ,  H04N19/14 ,  H04N19/182 ,  H04N19/176 ,  H04N19/149 ,  H04N19/44 ,  H04N19/152

CPC classification number: H04N19/44 ,  H04N19/124 ,  H04N19/14 ,  H04N19/149 ,  H04N19/15 ,  H04N19/152 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196 ,  H04N19/46

Abstract: A system adjusts the quantization parameter used to encode an image sample (e.g., pixel component). The system accesses a quantization parameter for encoding a current image pixel from an implicit rate control and obtains a measure of another image sample within a particular distance from the sample. When the measure meets a predetermined criterion, the system adjusts the quantization parameter, encodes the pixel after adjusting the quantization parameter, and explicitly indicates the adjusting of the quantization parameter to a decoding system.

公开(公告)号：US09805442B2

公开(公告)日：2017-10-31

申请号：US14180226

申请日：2014-02-13

Applicant: Broadcom Corporation

Inventor： Alexander Garland MacInnis ,  Frederick George Walls

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  G06T1/60 ,  H04N19/46 ,  H04N19/124 ,  H04N19/14 ,  H04N19/152 ,  H04N19/182

CPC classification number: G06T1/60 ,  H04N19/124 ,  H04N19/14 ,  H04N19/152 ,  H04N19/182 ,  H04N19/46

Abstract: A system implements rate control for encoding and decoding operations, for example, operations performed on slices of data such as image data. The system implements fine-grained bit rate control allowing for non-integer bit rates to be specified for the system. The non-integer values may allow the system to more accurately characterize a data rate of a communication link between a source and sink. The more accurate characterization may facilitate improved utilization of the communication link capacity.

公开(公告)号：US20140160139A1

公开(公告)日：2014-06-12

申请号：US14180226

申请日：2014-02-13

Applicant: Broadcom Corporation

Inventor： Alexander Garland MacInnis ,  Frederick George Walls

IPC: G06T1/60

CPC classification number: G06T1/60 ,  H04N19/124 ,  H04N19/14 ,  H04N19/152 ,  H04N19/182 ,  H04N19/46

Abstract: A system implements rate control for encoding and decoding operations, for example, operations performed on slices of data such as image data. The system implements fine-grained bit rate control allowing for non-integer bit rates to be specified for the system. The non-integer values may allow the system to more accurately characterize a data rate of a communication link between a source and sink. The more accurate characterization may facilitate improved utilization of the communication link capacity.

Abstract translation: 系统实现用于编码和解码操作的速率控制，例如对诸如图像数据的数据片执行的操作。 该系统实现细粒度比特率控制，允许为系统指定非整数比特率。 非整数值可以允许系统更准确地表征源和汇之间的通信链路的数据速率。 更准确的表征可以有助于改善通信链路容量的利用。

公开(公告)号：US20140092960A1

公开(公告)日：2014-04-03

申请号：US14044612

申请日：2013-10-02

Applicant: Broadcom Corporation

Inventor： Alexander Garland MacInnis ,  Frederick George Walls

IPC: H04N7/26

CPC classification number: H04N19/152 ,  H04N19/124 ,  H04N19/149 ,  H04N19/174

Abstract: A system implements rate control for encoding and decoding operations, for example, operations performed on slices of data such as image data. The system implements a transformation from actual buffer fullness to rate controlled fullness. With the rate controlled fullness model, the encoders and decoders adapt bit allocation responsive to rate controlled fullness, instead of the actual fullness.

Abstract translation: 系统实现用于编码和解码操作的速率控制，例如对诸如图像数据的数据片执行的操作。 系统实现从实际缓冲区丰满度到速率控制丰度的转换。 利用速率控制丰度模型，编码器和解码器可以根据速率控制的丰满度来适应位分配，而不是实际的丰满度。