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1. 发明授权

US09374592B2 Mode estimation in pipelined architectures 有权
标题翻译：流水线架构中的模式估计
公开(公告)号：US09374592B2
公开(公告)日：2016-06-21
申请号：US13607716
申请日：2012-09-08
申请人： Manu Mathew , Ranga Ramanujam Srinivasan
发明人： Manu Mathew , Ranga Ramanujam Srinivasan
IPC分类号： H04N7/32 , H04N19/42 , H04N19/176 , H04N19/11 , H04N19/107 , H04N11/04 , H04N7/12 , H04N11/02
CPC分类号： H04N19/42 , H04N19/107 , H04N19/11 , H04N19/176
摘要： A video system includes an encoder for generating a compressed bit stream in response to a received video signal. The encoder includes a mode decision processor that is arranged to determine whether the mode of a first pixel block in a first row is an “intra-mode” or an “inter-mode.” The encoder also includes a mode estimation processor that is arranged to estimate the mode of a left pixel block in a second row that is received after the first row in response to the determined mode of the first pixel block in the first row. The encoder also includes a pixel block processor that is arranged to process a pixel block in the second row that is to the right of the left pixel block in response to the estimated mode of the left pixel block.
摘要翻译：视频系统包括用于响应于接收到的视频信号而产生压缩比特流的编码器。编码器包括：模式决定处理器，被配置为确定第一行中的第一像素块的模式是“帧内模式”还是“帧间模式”。编码器还包括布置的模式估计处理器以响应于第一行中的第一像素块的确定模式来估计在第一行之后接收的第二行中的左像素块的模式。编码器还包括像素块处理器，其被配置为响应于左像素块的估计模式来处理在左像素块的右侧的第二行中的像素块。

2. 发明申请

US20140072040A1 MODE ESTIMATION IN PIPELINED ARCHITECTURES 有权
标题翻译：管道建筑模式估计
公开(公告)号：US20140072040A1
公开(公告)日：2014-03-13
申请号：US13607716
申请日：2012-09-08
申请人： Manu Mathew , Ranga Ramanujam Srinivasan
发明人： Manu Mathew , Ranga Ramanujam Srinivasan
IPC分类号： H04N7/32
CPC分类号： H04N19/42 , H04N19/107 , H04N19/11 , H04N19/176
摘要： A video system includes an encoder for generating a compressed bit stream in response to a received video signal. The encoder includes a mode decision processor that is arranged to determine whether the mode of a first pixel block in a first row is an “intra-mode” or an “inter-mode.” The encoder also includes a mode estimation processor that is arranged to estimate the mode of a left pixel block in a second row that is received after the first row in response to the determined mode of the first pixel block in the first row. The encoder also includes a pixel block processor that is arranged to process a pixel block in the second row that is to the right of the left pixel block in response to the estimated mode of the left pixel block.
摘要翻译：视频系统包括用于响应于接收到的视频信号而产生压缩比特流的编码器。编码器包括：模式决定处理器，被配置为确定第一行中的第一像素块的模式是“帧内模式”还是“帧间模式”。编码器还包括模式估计处理器，其被配置为响应于第一行中的第一像素块的确定模式来估计在第一行之后接收的第二行中的左像素块的模式。编码器还包括像素块处理器，其被配置为响应于左像素块的估计模式来处理在左像素块的右侧的第二行中的像素块。

3. 发明授权

US08170356B2 Linear temporal reference scheme having non-reference predictive frames 有权
标题翻译：具有非参考预测帧的线性时间参考方案
公开(公告)号：US08170356B2
公开(公告)日：2012-05-01
申请号：US12060887
申请日：2008-04-02
申请人： Manu Mathew , Soyeb Nagori , Pramod Kumar Swami
发明人： Manu Mathew , Soyeb Nagori , Pramod Kumar Swami
IPC分类号： G06K9/36
CPC分类号： H04N19/31 , H04N19/107 , H04N19/114 , H04N19/124 , H04N19/139 , H04N19/142 , H04N19/159 , H04N19/164 , H04N19/172 , H04N19/177 , H04N19/56 , H04N19/61
摘要： The method, system, and apparatus of linear temporal reference scheme having non-reference predictive frames is disclosed. In one embodiment, a method of a temporal reference scheme includes creating a non-reference predictive frame and a reference predictive frame from a reference frame, increasing a quantization factor of the non-reference predictive frame by a threshold value, and decreasing the quantization factor of the reference predictive frame by the threshold value. The method may include toggling between the temporal reference scheme and another temporal reference scheme in which there may be no non-reference predictive frames and only reference predictive frames based on a scenario. The method may also include calculating a target bit rate across a communication channel through a bit rate calculation algorithm that considers a bandwidth capacity across the communication channel.
摘要翻译：公开了具有非参考预测帧的线性时间参考方案的方法，系统和装置。在一个实施例中，时间参考方案的方法包括从参考帧创建非参考预测帧和参考预测帧，将非参考预测帧的量化因子增加阈值，并且减小量化因子的参考预测帧的阈值。该方法可以包括在时间参考方案和另一个时间参考方案之间切换，其中可以不存在基于场景的非参考预测帧和仅参考预测帧。该方法还可以包括通过考虑跨通信信道的带宽容量的比特率计算算法来计算跨通信信道的目标比特率。

4. 发明申请

US20100315557A1 REDUCING FLICKER IN THE DISPLAY OF VIDEO STREAMS 有权
标题翻译：在视频流的显示中减少闪光
公开(公告)号：US20100315557A1
公开(公告)日：2010-12-16
申请号：US12794942
申请日：2010-06-07
申请人： Manu Mathew , Soyeb Nagori , Akira Osamoto
发明人： Manu Mathew , Soyeb Nagori , Akira Osamoto
IPC分类号： H04N5/00
CPC分类号： H04N19/198 , H04N19/126 , H04N19/132 , H04N19/14 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/61
摘要： Image frames of a video stream are encoded with the aim of reducing flicker in the video stream when displayed. In one embodiment, the quantization parameter used to quantize an image frame is capped to be not greater than a quantization parameter used to quantize an immediately previous image frame. In another embodiment, the quantization step size used to quantize a macro-block of an image frame is computed based on the value of a quantization error of a co-located macro-block in an immediately previous image frame. In yet another embodiment, macro-block transform coefficients corresponding to high-frequency components are quantized using relatively higher quantization parameter values if the image frame is deemed to contain high activity. In yet another embodiment, flicker-prone macro-blocks of a source frame are replaced by corresponding best-match macro-blocks of a previous reconstructed frame, prior to being encoded.
摘要翻译：视频流的图像帧被编码，目的是在显示时减少视频流中的闪烁。在一个实施例中，用于量化图像帧的量化参数被限制为不大于用于量化紧接在前的图像帧的量化参数。在另一个实施例中，用于量化图像帧的宏块的量化步长基于紧邻的前一图像帧中的同位置宏块的量化误差的值来计算。在另一个实施例中，如果图像帧被认为包含高活动性，则使用相对较高的量化参数值来量化对应于高频分量的宏块变换系数。在另一个实施例中，在被编码之前，源帧的闪烁容易的宏块被先前重建帧的对应的最佳匹配宏块替代。

5. 发明申请

US20130230095A1 Drift Reduction for Quality Scalable Video Coding 有权
标题翻译：用于质量可缩放视频编码的漂移减少
公开(公告)号：US20130230095A1
公开(公告)日：2013-09-05
申请号：US13005665
申请日：2011-01-13
申请人： Manu Mathew , Sumit Kandpal
发明人： Manu Mathew , Sumit Kandpal
IPC分类号： H04N7/26
CPC分类号： H04N19/36 , H04N19/31 , H04N19/33 , H04N19/66
摘要： This invention is a method of scalable video encoding and decoding. The scalable video encoding codes both a base layer and an enhanced layer having greater resolution and/or refresh rate. Upon decoding some enhanced layer pictures may be dropped to reach a best resolution and refresh rate within a target data rate. Upon encoding a key picture in at least one group of pictures forming the video is a combined base layer/enhanced layer key picture. Such a combined base layer/enhanced layer key picture cannot be dropped on decoding. This technique reduces drift in the decoder.
摘要翻译：本发明是一种可分级视频编码和解码的方法。可分级视频编码对基本层和具有更高分辨率和/或刷新率的增强层进行编码。在解码时，可以丢弃一些增强层图像以达到目标数据速率内的最佳分辨率和刷新率。一旦对形成视频的至少一组图像中的关键画面进行编码，就是组合的基本层/增强层关键画面。这样的组合基层/增强层密钥图像在解码时不能丢弃。该技术减少了解码器中的漂移。

6. 发明授权

US08406294B2 Method of assigning priority for controlling bit rate of bitstream, method of controlling bit rate of bitstream, video decoding method, and apparatus using the same 有权
标题翻译：分配用于控制比特流比特率的优先级的方法，控制比特流的比特率的方法，视频解码方法以及使用该比特率的装置
公开(公告)号：US08406294B2
公开(公告)日：2013-03-26
申请号：US11708336
申请日：2007-02-21
申请人： Manu Mathew , Kyo-hyuk Lee , Woo-jin Han
发明人： Manu Mathew , Kyo-hyuk Lee , Woo-jin Han
IPC分类号： H04N7/12
CPC分类号： H04N19/36 , H04N19/187 , H04N19/19 , H04N19/34
摘要： A method of assigning a priority for controlling a bit rate of a bitstream having a plurality of quality layers is provided. The method includes composing first quality layers for a reference picture, composing second quality layers for a current picture that is encoded with reference to the reference picture, and assigning a priority each of the first and second quality layers, wherein a low priority is assigned to a quality layer having a small influence on a video quality reduction of the current picture when the quality layer is truncated.
摘要翻译：提供了一种分配用于控制具有多个质量层的比特流的比特率的优先级的方法。该方法包括：为参考图像组合第一质量层，为参照参考图像编码的当前图像构成第二质量层，以及分配第一和第二质量层的优先级，其中低优先级被分配给质量层在质量层被截断时对当前图像的视频质量降低具有小的影响。

7. 发明申请

US20060159283A1 Method and apparatus for audio bass enhancement 审中-公开
标题翻译：用于音频低音增强的方法和装置
公开(公告)号：US20060159283A1
公开(公告)日：2006-07-20
申请号：US11257123
申请日：2005-10-25
申请人： Manu Mathew , Manish Arora
发明人： Manu Mathew , Manish Arora
IPC分类号： H03G5/00 , H03G3/00
CPC分类号： H04R3/04
摘要： A method and apparatus for audio bass enhancement is provided. The method includes band-pass filtering an input signal; generating at least one even and odd harmonics of the band-pass filtered input signal; and synthesizing the harmonics and the band-pass filtered input signal to be output.
摘要翻译：提供了用于音频低音增强的方法和装置。该方法包括对输入信号进行带通滤波; 产生带通滤波的输入信号的至少一个偶次和奇数谐波; 并合成要输出的谐波和带通滤波的输入信号。

8. 发明申请

US20130202036A1 Intra/Inter Mode Decision for Predictive Frame Encoding 有权
标题翻译：用于预测帧编码的帧内/帧间模式决定
公开(公告)号：US20130202036A1
公开(公告)日：2013-08-08
申请号：US12751211
申请日：2010-03-31
申请人： Soyeb Nagori , Manu Mathew , Pramod Kumar Swami
发明人： Soyeb Nagori , Manu Mathew , Pramod Kumar Swami
IPC分类号： H04N7/26
CPC分类号： H04N19/107 , H04N19/147 , H04N19/176 , H04N19/50
摘要： This invention predicts that intra mode prediction is more effective for the macroblocks where motion estimation in inter mode prediction fails. This failure is indicated by a large value of the inter mode SAD. This invention performs intra mode prediction for only macro blocks have larger inter mode SADs. The definition of a large inter mode SAD differs for different content. This invention compares the inter mode SAD of a current macroblock with an adaptive threshold. This adaptive threshold depends on the average and variance of the SADs of the previous predicted frame. An adaptive threshold is calculated for each new predictive frame.
摘要翻译：本发明预测帧模式预测对于帧间模式预测中的运动估计失败的宏块更有效。该故障由间隔模式SAD的大值指示。本发明仅对具有较大的帧间模式SAD的宏块执行帧内模式预测。大型inter模式SAD的定义因不同内容而异。本发明将当前宏块的帧间模式SAD与自适应阈值进行比较。该自适应阈值取决于先前预测帧的SAD的平均值和方差。为每个新的预测帧计算自适应阈值。

9. 发明申请

US20100316119A1 PRESERVING TEXT QUALITY IN VIDEO ENCODING 有权
标题翻译：保存视频编码中的文本质量
公开(公告)号：US20100316119A1
公开(公告)日：2010-12-16
申请号：US12777433
申请日：2010-05-11
申请人： Manu Mathew , Soyeb Nagori
发明人： Manu Mathew , Soyeb Nagori
IPC分类号： H04N7/26
CPC分类号： G06K9/3266 , H04N19/124 , H04N19/14 , H04N19/149 , H04N19/152 , H04N19/61
摘要： A video encoder receives a macro-block of an image frame, and determines whether the macro-block contains text. The video encoder computes a quantization parameter for quantizing the macro-block, with the quantization parameter computed to be smaller if the macro-block is determined to contain text. The video encoder encodes the macro-block using the quantization parameter. Text quality in the encoded macro-block is preserved.
摘要翻译：视频编码器接收图像帧的宏块，并且确定宏块是否包含文本。视频编码器计算用于量化宏块的量化参数，如果宏块被确定为包含文本，则计算的量化参数更小。视频编码器使用量化参数对宏块进行编码。编码宏块中的文本质量得以保留。

10. 发明申请

US20070280350A1 Method of assigning priority for controlling bit rate of bitstream, method of controlling bit rate of bitstream, video decoding method, and apparatus using the same 有权
标题翻译：分配用于控制比特流比特率的优先级的方法，控制比特流的比特率的方法，视频解码方法以及使用该比特率的装置
公开(公告)号：US20070280350A1
公开(公告)日：2007-12-06
申请号：US11708336
申请日：2007-02-21
申请人： Manu Mathew , Kyo-hyuk Lee , Woo-jin Han
发明人： Manu Mathew , Kyo-hyuk Lee , Woo-jin Han
IPC分类号： H04B1/66
CPC分类号： H04N19/36 , H04N19/187 , H04N19/19 , H04N19/34
摘要： A method of assigning a priority for controlling a bit rate of a bitstream having a plurality of quality layers is provided. The method includes composing first quality layers for a reference picture, composing second quality layers for a current picture that is encoded with reference to the reference picture, and assigning a priority each of the first and second quality layers, wherein a low priority is assigned to a quality layer having a small influence on a video quality reduction of the current picture when the quality layer is truncated.
摘要翻译：提供了一种分配用于控制具有多个质量层的比特流的比特率的优先级的方法。该方法包括：为参考图像组合第一质量层，为参照参考图像编码的当前图像构成第二质量层，以及分配第一和第二质量层的优先级，其中低优先级被分配给质量层在质量层被截断时对当前图像的视频质量降低具有小的影响。

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