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1. 发明申请

WO0225950A3 LOAD BALANCING AND MODE SELECTION IN A MULTI-PROCESSOR VIDEO TRANSCODER 审中-公开
标题翻译：多处理器视频转换器中的负载平衡和模式选择
公开(公告)号：WO0225950A3
公开(公告)日：2003-08-28
申请号：PCT/US0125878
申请日：2001-08-20
申请人： GEN INSTRUMENT CORP , LIU VINCENT , NEMIROFF ROBERT S , WU SIU-WAI , LUTHRA AJAY , WANG LIMIN
发明人： LIU VINCENT , NEMIROFF ROBERT S , WU SIU-WAI , LUTHRA AJAY , WANG LIMIN
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/40 , H04N19/156 , H04N19/42 , H04N19/436 , H04N19/61
摘要： An efficient processing system, such as for transcoding video data. In an embodiment that is suitable for single or multiple processor embodiments, a processing mode is set for each input video frame, e.g., as a full transcode mode (740), which uses motion compensation, a requantization mode (755), which avoids motion compensation, or a bypass mode (750). The processing mode selection is based on a number or processing cycles that are available to process a frame, and an expected processing requirement of the frame. The bypass or requantization modes are selected to avoid a buffer overflow of the processor.
摘要翻译：一种高效的处理系统，例如用于对视频数据进行代码转换。在适用于单个或多个处理器实施例的实施例中，为每个输入视频帧设置处理模式，例如，使用运动补偿的全代码转换模式（740），避免运动的重新排序模式（755）补偿或旁路模式（750）。处理模式选择基于可用于处理帧的数量或处理周期以及帧的预期处理要求。选择旁路或再量化模式以避免处理器的缓冲区溢出。

2. 发明申请

WO02084911A3 MULTI-RATE TRANSCODER FOR DIGITAL STREAMS 审中-公开
标题翻译：用于数字流的多速度传输器
公开(公告)号：WO02084911A3
公开(公告)日：2003-03-27
申请号：PCT/US0207772
申请日：2002-03-15
申请人： GEN INSTRUMENT CORP , WANG LIMIN , LUTHRA AJAY
发明人： WANG LIMIN , LUTHRA AJAY
IPC分类号： H03M7/30 , H04J3/00 , H04L12/20 , H04N7/26 , H04N21/2343 , H04N21/236 , H04N21/24 , H04N21/258 , H04N21/2662 , H04N21/6373 , H04N7/24
CPC分类号： H04N21/2405 , H04N19/156 , H04N19/20 , H04N19/40 , H04N21/234354 , H04N21/23439 , H04N21/236 , H04N21/25833 , H04N21/2662 , H04N21/6373
摘要： Methods and apparatus are provided to produce a plurality of different rate output bitstreams from a common input bit stream. Overhead data (30) is extracted from the input bit stream. The input bit stream is partially decoded (62). Thereafter, the at least partially decoded bit stream is re-encoded at different rates (64A, 64B... 64N), to produce multiple re-encoded bit streams (STREAM 1, STREAM 2... STREAM N) having different rates. The overhead data (30) is combined (60) with each re-encoded bit stream, thereby providing multiple versions of said encoded bit stream at different rates.
摘要翻译：提供方法和装置以从公共输入比特流产生多个不同速率的输出比特流。从输入比特流中提取开销数据（30）。输入比特流被部分解码（62）。此后，至少部分解码的比特流以不同的速率（64A，64B ... 64N）进行重新编码，以产生具有不同速率的多个重编码比特流（STREAM 1，STREAM 2 ... STREAM N）。开销数据（30）与每个重新编码的比特流组合（60），从而以不同的速率提供所述编码比特流的多个版本。

3. 发明申请

WO2013032576A2 QUANTIZATION PARAMETER DERIVATION FROM QP PREDICTOR 审中-公开
标题翻译：量子参数从QP PREDICTOR衍生
公开(公告)号：WO2013032576A2
公开(公告)日：2013-03-07
申请号：PCT/US2012045299
申请日：2012-07-02
申请人： GEN INSTRUMENT CORP , PANUSOPONE KRIT , LUTHRA AJAY , WANG LIMIN , FANG XUE , KIM JAE HOON
发明人： PANUSOPONE KRIT , LUTHRA AJAY , WANG LIMIN , FANG XUE , KIM JAE HOON
CPC分类号： H04N19/124 , H04N19/136 , H04N19/159 , H04N19/176 , H04N19/463
摘要： A method for determining quantization parameters is provided. The method includes determining one or more first units of video content in a grouping of units and analyzing whether the one or more first units of video content within a region in the grouping of units have coefficients for the video content that are zero. The method then determines whether a quantization parameter for one or more second units of video content different from the one or more first units of video content is to be used to derive the quantization parameter for the one or more first units of video content. When the quantization parameter for the one or more second units of video content is to be used, the quantization parameter for the one or more first units of video content is derived from the quantization parameter for the one or more second units of video content.
摘要翻译：提供了一种用于确定量化参数的方法。该方法包括确定单元分组中的一个或多个视频内容的第一单元，并且分析单元分组内的区域内的视频内容的一个或多个第一单元是否具有为零的视频内容的系数。该方法然后确定用于与视频内容的一个或多个第一单元不同的视频内容的一个或多个第二单元的量化参数是否将用于导出视频内容的一个或多个第一单元的量化参数。当要使用视频内容的一个或多个第二单元的量化参数时，从视频内容的一个或多个第二单元的量化参数导出视频内容的一个或多个第一单元的量化参数。

4. 发明申请

WO2012178178A3 SELECTION OF PHASE OFFSETS FOR INTERPOLATION FILTERS FOR MOTION COMPENSATION 审中-公开
标题翻译：选择用于运动补偿的插值过滤器的相位偏移
公开(公告)号：WO2012178178A3
公开(公告)日：2013-02-21
申请号：PCT/US2012044039
申请日：2012-06-25
申请人： GEN INSTRUMENT CORP , MINOO KOOHYAR , BAYLON DAVID M , LOU JIAN , LUTHRA AJAY , PANUSOPONE KRIT , WANG LIMIN
发明人： MINOO KOOHYAR , BAYLON DAVID M , LOU JIAN , LUTHRA AJAY , PANUSOPONE KRIT , WANG LIMIN
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/132 , H04N19/139 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/46 , H04N19/51 , H04N19/523 , H04N19/82
摘要： In one embodiment, a method for encoding or decoding video content is provided. The method determines a plurality of sets of interpolation filters for use in interpolating sub-pel pixel values for a temporal prediction process of video content. Different sets of interpolation filters include different phase offset characteristics. A unit of video content is received. The method then selects one of the set of interpolation filters to interpolate a set of sub-pel pixel values for use in the temporal prediction process for the unit of video content based on characteristics associated with the encoding or decoding of the video content. The one of the set of interpolation filters is selected based on the phase offset characteristic of the one of the set of interpolation filters and the characteristics associated with the encoding or decoding.
摘要翻译：在一个实施例中，提供了一种用于编码或解码视频内容的方法。该方法确定用于内插用于视频内容的时间预测处理的子像素像素值的多组插值滤波器。不同的插值滤波器组包括不同的相位偏移特性。收到视频内容的单位。该方法然后基于与视频内容的编码或解码相关联的特征，选择一组插值滤波器来插值用于视频内容单元的时间预测处理中的一组子像素像素值。基于内插滤波器组中的一个的相位偏移特性和与编码或解码相关联的特性来选择该组内插滤波器中的一个。

5. 发明申请

WO2008045630A4 METHOD AND APPARATUS FOR PROVIDING RATE CONTROL FOR PANEL-BASED REAL-TIME VIDEO ENCODER 审中-公开
标题翻译：用于基于面板的实时视频编码器提供速率控制的方法和装置
公开(公告)号：WO2008045630A4
公开(公告)日：2009-01-08
申请号：PCT/US2007077177
申请日：2007-08-30
申请人： GEN INSTRUMENT CORP , WANG LIMIN , ZHOU JIAN
发明人： WANG LIMIN , ZHOU JIAN
IPC分类号： H04N7/18
CPC分类号： H04N19/174 , H04N19/124 , H04N19/14 , H04N19/146 , H04N19/172 , H04N19/177
摘要： A method and apparatus for providing multi-panel rate control of real-time video digital encoders such as an MPEG or H series including the steps of bit allocation, rate control and adaptive quantization. Bit allocation assigns a target number of bits per group of pictures, and per picture of each type. Rate control adjusts the quantization parameter at the MB level to achieve that target number of bits per picture. Adaptive quantization further modulates the parameter per MB using local activity measure. Bit allocation and rate control can be implemented through a central control unit, or a central digital signal processor (DSP) while adaptive quantization can be implemented at the local panel.
摘要翻译：一种用于提供诸如MPEG或H系列的实时视频数字编码器的多面板速率控制的方法和装置，包括比特分配，速率控制和自适应量化的步骤。位分配分配每组图像的目标位数，以及每种类型的每张图像。速率控制调整MB级别的量化参数，以实现每个图像的目标位数。自适应量化使用局部活动度量进一步调整每MB的参数。位分配和速率控制可以通过中央控制单元或中央数字信号处理器（DSP）来实现，而自适应量化可以在本地面板上实现。

6. 发明申请

WO2006073579A3 METHODS AND APPARATUS FOR PROVIDING A RATE CONTROL 审中-公开
标题翻译：提供速率控制的方法和装置
公开(公告)号：WO2006073579A3
公开(公告)日：2007-01-18
申请号：PCT/US2005041643
申请日：2005-11-17
申请人： GEN INSTRUMENT CORP , WANG LIMIN , FANG XUE
发明人： WANG LIMIN , FANG XUE
IPC分类号： H04N7/12
CPC分类号： H04N19/174 , H04N19/115 , H04N19/126 , H04N19/14 , H04N19/149 , H04N19/172 , H04N19/176 , H04N19/61
摘要： The present invention discloses a system and method for providing a rate control to an encoder, e.g., a H.264/MPEG-4 AVC compliant encoder (1). Specifically, the rate control method computes a target rate for a segment, where the segment comprises at least one slice of macroblocks (130). In turn, a target rate is computed for the at least one slice of macroblocks from the target rate for the segment (130). In turn, a quantization parameter (QP j ) is computed for a macroblock (j) of the macroblocks from the target rate for the at least one slice (170). Finally, the macroblock (j) is encoded (180) in accordance with said quantization parameter (QP j ).
摘要翻译：本发明公开了一种用于向编码器（例如H.264 / MPEG-4AVC兼容编码器（1））提供速率控制的系统和方法。具体地，速率控制方法计算段的目标速率，其中段包括至少一个宏块片段（130）。反过来，根据片段（130）的目标速率为至少一个宏块片段计算目标速率。反过来，针对至少一个切片（170）的目标速率，针对宏块（j）的宏块（j）计算量化参数（QP N j）。最后，宏块（j）根据所述量化参数（QP＆lt; j＆gt;）编码（180）。

7. 发明申请

WO0184905A3 STATISTICAL MULTIPLEXER AND REMULTIPLEXER THAT ACCOMMODATES CHANGES IN STRUCTURE OF GOP 审中-公开
标题翻译：统计多普勒和补偿器，可以调整GOP结构的变化
公开(公告)号：WO0184905A3
公开(公告)日：2003-03-13
申请号：PCT/US0114096
申请日：2001-05-02
申请人： GEN INSTRUMENT CORP , WANG LIMIN
发明人： WANG LIMIN
IPC分类号： H04N7/26 , H04N7/50 , H04N21/2365 , H04N7/58
CPC分类号： H04N21/23655 , H04N19/115 , H04N19/124 , H04N19/152 , H04N19/159 , H04N19/162 , H04N19/172 , H04N19/177 , H04N19/179 , H04N19/40 , H04N19/625
摘要： A system for rate control during transcoding and encoding of digital video data in a multi-program transmission environment accommodates changes in the GOP structure of any of the programs, e.g., due to a commercial insertion or the like. A hierarchical bit allocation scheme is used, where bits are allocated on a super group of pictures (GOP) level (106), i.e., a grouping of multiple GOPs, a super frame level (104), and an individual frame level (102). The bit allocation for the super GOP and each picture is adjusted when a change in the structure of a group of pictures (GOP) is detected for any of the pre-compressed programs. The super GOP length may also be adjusted if required to maintain an integer number of GOPs therein. A change in the GOP structure is detected based on a change in the GOP length or sub GOP length (distance between P pictures). For pre-compressed data, initial GOP lengths and sub GOP lengths can be assumed and adjusted as required based on actual measurements. For a current I or P picture, the sub GOP length is calculated based on temporal references of the current picture and a previous I or P picture. For a current B picture, the same calculation is used, plus one picture.
摘要翻译：用于在多节目传输环境中的数字视频数据的代码转换和编码期间的速率控制的系统适应任何节目的GOP结构的改变，例如由于商业插入等。使用分层比特分配方案，其中比特分配在超组图像（GOP）级（106）上，即，多个GOP的分组，超帧级（104）和单个帧级（102）。当对于任何预压缩的程序检测到一组图像（GOP）的结构的变化时，调整超级GOP和每个图像的比特分配。如果需要，也可以调整超级GOP长度以在其中维持整数个GOP。基于GOP长度或子GOP长度（P画面之间的距离）的变化来检测GOP结构的变化。对于预压缩数据，可以根据实际测量的需要假设和调整初始GOP长度和子GOP长度。对于当前的I或P图像，基于当前图像和先前的I或P图像的时间参考来计算子GOP长度。对于当前的B图像，使用相同的计算，加上一个图像。

8. 发明申请

WO2013012819A3 CONTEXT MODELING TECHNIQUES FOR TRANSFORM COEFFICIENT LEVEL CODING 审中-公开
标题翻译：用于变换系数级编码的上下文建模技术
公开(公告)号：WO2013012819A3
公开(公告)日：2013-06-20
申请号：PCT/US2012046960
申请日：2012-07-16
申请人： GEN INSTRUMENT CORP , LOU JIAN , HOON KIM JAE , WANG LIMIN
发明人： LOU JIAN , HOON KIM JAE , WANG LIMIN
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/184 , H04N19/129 , H04N19/13 , H04N19/176 , H04N19/18 , H04N19/61 , H04N19/70 , H04N19/91
摘要： In one embodiment, a method for encoding video data is provided that includes receiving a transform unit comprising a two-dimensional array of transform coefficients and processing the transform coefficients of the two-dimensional array along a single-level scan order. The processing includes selecting, for each non-zero transform coefficient along the single-level scan order, one or more context models for encoding an absolute level of the non-zero transform coefficient, where the selecting is based on one or more transform coefficients previously encoded along the single-level scan order.
摘要翻译：在一个实施例中，提供了一种用于对视频数据进行编码的方法，该方法包括：接收包括变换系数的二维阵列的变换单元，并且沿着单级扫描顺序处理二维阵列的变换系数。该处理包括为沿着单级扫描顺序的每个非零变换系数选择用于编码非零变换系数的绝对级别的一个或多个上下文模型，其中该选择基于先前的一个或多个变换系数沿单级扫描顺序编码。

9. 发明申请

WO2006074043A3 METHOD AND APPARATUS FOR PROVIDING MOTION ESTIMATION WITH WEIGHT PREDICTION 审中-公开
标题翻译：用重量预测提供运动估计的方法和设备
公开(公告)号：WO2006074043A3
公开(公告)日：2006-10-26
申请号：PCT/US2005047369
申请日：2005-12-28
申请人： GEN INSTRUMENT CORP , PANUSOPONE KRIT , FANG XUE , WANG LIMIN
发明人： PANUSOPONE KRIT , FANG XUE , WANG LIMIN
IPC分类号： H04N7/36
CPC分类号： H04N19/523 , H04N19/117 , H04N19/182 , H04N19/61
摘要： The present invention discloses an apparatus and method for providing a motion estimation method with weight prediction that requires less memory and computation cycles. In one embodiment, the weight is applied to pixels of a current slice or picture instead of the reference picture. In doing so, the number of processing cycles is significantly reduced while retaining the benefits of implementing a motion estimation method with weight prediction.
摘要翻译：本发明公开了一种用于提供具有需要较少存储器和计算周期的权重预测的运动估计方法的设备和方法。在一个实施例中，权重被应用于当前切片或图片的像素而不是参考图片。在此过程中，处理周期的数量显着减少，同时保留了利用权重预测实现运动估计方法的好处。

10. 发明申请

WO2008045630A3 METHOD AND APPARATUS FOR PROVIDING RATE CONTROL FOR PANEL-BASED REAL-TIME VIDEO ENCODER 审中-公开
标题翻译：用于基于面板的实时视频编码器提供速率控制的方法和装置
公开(公告)号：WO2008045630A3
公开(公告)日：2008-11-13
申请号：PCT/US2007077177
申请日：2007-08-30
申请人： GEN INSTRUMENT CORP , WANG LIMIN , ZHOU JIAN
发明人： WANG LIMIN , ZHOU JIAN
IPC分类号： H04N7/18
CPC分类号： H04N19/174 , H04N19/124 , H04N19/14 , H04N19/146 , H04N19/172 , H04N19/177
摘要： A method and apparatus for providing multi-panel rate control of real-time video digital encoders such as an MPEG or H series including the steps of bit allocation, rate control and adaptive quantization. Bit allocation assigns a target number of bits per group of pictures, and per picture of each type. Rate control adjusts the quantization parameter at the MB level to achieve that target number of bits per picture. Adaptive quantization further modulates the parameter per MB using local activity measure. Bit allocation and rate control can be implemented through a central control unit, or a central digital signal processor (DSP) while adaptive quantization can be implemented at the local panel.
摘要翻译：一种用于提供诸如MPEG或H系列的实时视频数字编码器的多面板速率控制的方法和装置，包括比特分配，速率控制和自适应量化的步骤。位分配分配每组图像的目标位数，以及每种类型的每张图像。速率控制调整MB级别的量化参数，以实现每个图像的目标位数。自适应量化使用局部活动度量进一步调整每MB的参数。位分配和速率控制可以通过中央控制单元或中央数字信号处理器（DSP）来实现，而自适应量化可以在本地面板上实现。

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