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1. 发明授权

US07088774B1 Media stream synchronization 有权
标题翻译：媒体流同步
公开(公告)号：US07088774B1
公开(公告)日：2006-08-08
申请号：US10158536
申请日：2002-05-29
申请人： Shankar Moni , Ankur Varma , John Allen Tardif
发明人： Shankar Moni , Ankur Varma , John Allen Tardif
IPC分类号： H04N7/12
CPC分类号： H04N21/44004 , H04N21/4307 , H04N21/4788
摘要： A system and method of synchronizing a media stream involves determining urgency measures and favorability measures. An urgency measure relates to a degree by which a media stream is currently out of synchronization. A favorability measure indicates the disruptiveness or likely noticeability altering the media stream at a particular temporal point. As a media stream becomes more and more out of synchronization, the urgency factor increases, and the system looks for places in the media stream at which units such as video frames or audio samples can be added or subtracted to re-achieve synchronization. When the urgency measure is at lower values, the system selects only points in the media stream having relatively high favorability measures. When the urgency measure increases, the system selects points having relatively lower favorability measures.
摘要翻译：一种同步媒体流的系统和方法包括确定紧急措施和有利度量措施。紧急措施涉及媒体流当前不同步的程度。优惠措施表明在特定时间点上的媒体流的破坏性或可能的注意力改变。随着媒体流变得越来越不同步，紧急因素增加，并且系统寻找媒体流中可以添加或减少诸如视频帧或音频样本的单元以重新实现同步的位置。当紧急措施处于较低值时，系统仅选择媒体流中具有较高适应度度量的点。当紧急措施增加时，系统选择具有较低优惠措施的点。

2. 发明授权

US07660351B2 Video deblocking 失效
标题翻译：视频解锁
公开(公告)号：US07660351B2
公开(公告)日：2010-02-09
申请号：US11191204
申请日：2005-07-27
申请人： Ankur Varma , Shankar Moni
发明人： Ankur Varma , Shankar Moni
IPC分类号： H04N7/12 , G06K9/48
CPC分类号： H04N19/86
摘要： Video deblocking can be implemented in video content processing and delivery environments when displaying decompressed/decoded video information. Discontinuities are identified and smoothed to reduce blockiness, for example at macroblock boundaries in conjunction with Moving Picture Expert Group (MPEG)-based schemes. In exemplary implementation(s), a client device detects discontinuities at or near block boundaries, determines which discontinuities are artificial, and smooths at least those discontinuities that are determined to be artificial. These actions may be accomplished using (i) one or more Laplacian of Gaussian (LoG) operations as applied to both an image and a quantization matrix and (ii) windowed comparisons between values and a threshold resulting from the LoG operations. Alternatively, these actions may be accomplished using a spatio-temporally varying filter. Additionally, in an MPEG context, intra image units may be deblocked using the former approach while non-intra image units may be deblocked using the latter approach.
摘要翻译：当显示解压缩/解码的视频信息时，视频解锁可以在视频内容处理和传送环境中实现。不连续性被识别和平滑以减少块效应，例如在与基于运动图像专家组（MPEG）的方案的宏块边界处。在示例性实现中，客户端设备在块边界处或附近检测不连续性，确定哪些不连续性是人为的，并且平滑至少那些被确定为人为的不连续性。可以使用（i）应用于图像和量化矩阵的一个或多个拉普拉斯高斯（LoG）操作来实现这些动作，以及（ii）值之间的窗口比较和由LoG操作产生的阈值。或者，可以使用时空变化滤波器来实现这些动作。另外，在MPEG上下文中，可以使用前一种方法去除帧内图像单元，而使用后一种方法可以解除非帧内图像单元。

3. 发明授权

US07567618B2 Video deblocking 有权
公开(公告)号：US07567618B2
公开(公告)日：2009-07-28
申请号：US11191131
申请日：2005-07-27
申请人： Ankur Varma , Shankar Moni
发明人： Ankur Varma , Shankar Moni
IPC分类号： H04N7/12
CPC分类号： H04N19/86
摘要： Video deblocking can be implemented in video content processing and delivery environments when displaying decompressed/decoded video information. Discontinuities are identified and smoothed to reduce blockiness, for example at macroblock boundaries in conjunction with Moving Picture Expert Group (MPEG)-based schemes. In exemplary implementation(s), a client device detects discontinuities at or near block boundaries, determines which discontinuities are artificial, and smooths at least those discontinuities that are determined to be artificial. These actions may be accomplished using (i) one or more Laplacian of Gaussian (LoG) operations as applied to both an image and a quantization matrix and (ii) windowed comparisons between values and a threshold resulting from the LoG operations. Alternatively, these actions may be accomplished using a spatio-temporally varying filter. Additionally, in an MPEG context, intra image units may be deblocked using the former approach while non-intra image units may be deblocked using the latter approach.

4. 发明申请

US20050281340A1 Video deblocking 有权
标题翻译：视频解锁
公开(公告)号：US20050281340A1
公开(公告)日：2005-12-22
申请号：US11191220
申请日：2005-07-27
申请人： Ankur Varma , Shankar Moni
发明人： Ankur Varma , Shankar Moni
IPC分类号： H04N7/26 , H04N7/30 , H04N7/12
CPC分类号： H04N19/86
摘要： Video deblocking can be implemented in video content processing and delivery environments when displaying decompressed/decoded video information. Discontinuities are identified and smoothed to reduce blockiness, for example at macroblock boundaries in conjunction with Moving Picture Expert Group (MPEG)-based schemes. In exemplary implementation(s), a client device detects discontinuities at or near block boundaries, determines which discontinuities are artificial, and smooths at least those discontinuities that are determined to be artificial. These actions may be accomplished using (i) one or more Laplacian of Gaussian (LoG) operations as applied to both an image and a quantization matrix it and (ii) windowed comparisons between values and a threshold resulting from the LoG operations. Alternatively, these actions may be accomplished using a spatio-temporally varying filter. Additionally, in an MPEG context, intra image units may be deblocked using the former approach while non-intra image units may be deblocked using the latter approach.
摘要翻译：当显示解压缩/解码的视频信息时，视频解锁可以在视频内容处理和传送环境中实现。不连续性被识别和平滑以减少块效应，例如在与基于运动图像专家组（MPEG）的方案的宏块边界处。在示例性实现中，客户端设备在块边界处或附近检测不连续性，确定哪些不连续性是人为的，并且平滑至少那些被确定为人为的不连续性。这些动作可以使用（i）应用于图像和量化矩阵的一个或多个拉普拉斯高斯（LoG）操作来实现，以及（ii）值之间的窗口比较和由LoG操作产生的阈值。或者，可以使用时空变化滤波器来实现这些动作。另外，在MPEG上下文中，可以使用前一种方法去除帧内图像单元，而使用后一种方法可以解除非帧内图像单元。

5. 发明申请

US20050262531A1 Video deblocking 失效
标题翻译：视频解锁
公开(公告)号：US20050262531A1
公开(公告)日：2005-11-24
申请号：US11191204
申请日：2005-07-27
申请人： Ankur Varma , Shankar Moni
发明人： Ankur Varma , Shankar Moni
IPC分类号： H04N7/26 , H04N7/30 , H04N7/025 , G06F13/00 , H04N5/445 , H04N7/10
CPC分类号： H04N19/86
摘要： Video deblocking can be implemented in video content processing and delivery environments when displaying decompressed/decoded video information. Discontinuities are identified and smoothed to reduce blockiness, for example at macroblock boundaries in conjunction with Moving Picture Expert Group (MPEG)-based schemes. In exemplary implementation(s), a client device detects discontinuities at or near block boundaries, determines which discontinuities are artificial, and smooths at least those discontinuities that are determined to be artificial. These actions may be accomplished using (i) one or more Laplacian of Gaussian (LoG) operations as applied to both an image and a quantization matrix and (ii) windowed comparisons between values and a threshold resulting from the LoG operations. Alternatively, these actions may be accomplished using a spatio-temporally varying filter. Additionally, in an MPEG context, intra image units may be deblocked using the former approach while non-intra image units may be deblocked using the latter approach.
摘要翻译：当显示解压缩/解码的视频信息时，视频解锁可以在视频内容处理和传送环境中实现。不连续性被识别和平滑以减少块效应，例如在与基于运动图像专家组（MPEG）的方案的宏块边界处。在示例性实现中，客户端设备在块边界处或附近检测不连续性，确定哪些不连续性是人为的，并且平滑至少那些被确定为人为的不连续性。可以使用（i）应用于图像和量化矩阵的一个或多个拉普拉斯高斯（LoG）操作来实现这些动作，以及（ii）值之间的窗口比较和由LoG操作产生的阈值。或者，可以使用时空变化滤波器来实现这些动作。另外，在MPEG上下文中，可以使用前一种方法去除帧内图像单元，而使用后一种方法可以解除非帧内图像单元。

6. 发明授权

US07567619B2 Video deblocking 有权
标题翻译：视频解锁
公开(公告)号：US07567619B2
公开(公告)日：2009-07-28
申请号：US11191220
申请日：2005-07-27
申请人： Ankur Varma , Shankar Moni
发明人： Ankur Varma , Shankar Moni
IPC分类号： H04N7/12
CPC分类号： H04N19/86
摘要： Video deblocking can be implemented in video content processing and delivery environments when displaying decompressed/decoded video information. Discontinuities are identified and smoothed to reduce blockiness, for example at macroblock boundaries in conjunction with Moving Picture Expert Group (MPEG)-based schemes. In exemplary implementation(s), a client device detects discontinuities at or near block boundaries, determines which discontinuities are artificial, and smooths at least those discontinuities that are determined to be artificial. These actions may be accomplished using (i) one or more Laplacian of Gaussian (LoG) operations as applied to both an image and a quantization matrix and (ii) windowed comparisons between values and a threshold resulting from the LoG operations. Alternatively, these actions may be accomplished using a spatio-temporally varying filter. Additionally, in an MPEG context, intra image units may be deblocked using the former approach while non-intra image units may be deblocked using the latter approach.
摘要翻译：当显示解压缩/解码的视频信息时，视频解锁可以在视频内容处理和传送环境中实现。不连续性被识别和平滑以减少块效应，例如在与基于运动图像专家组（MPEG）的方案的宏块边界处。在示例性实现中，客户端设备在块边界处或附近检测不连续性，确定哪些不连续性是人为的，并且平滑至少那些被确定为人为的不连续性。可以使用（i）应用于图像和量化矩阵的一个或多个拉普拉斯高斯（LoG）操作来实现这些动作，以及（ii）值之间的窗口比较和由LoG操作产生的阈值。或者，可以使用时空变化滤波器来实现这些动作。另外，在MPEG上下文中，可以使用前一种方法去除帧内图像单元，而使用后一种方法可以解除非帧内图像单元。

7. 发明申请

US20050259745A1 Video deblocking 有权
公开(公告)号：US20050259745A1
公开(公告)日：2005-11-24
申请号：US11191131
申请日：2005-07-27
申请人： Ankur Varma , Shankar Moni
发明人： Ankur Varma , Shankar Moni
IPC分类号： H04N7/26 , H04N7/30 , H04N5/217 , H04N5/21
CPC分类号： H04N19/86
摘要： Video deblocking can be implemented in video content processing and delivery environments when displaying decompressed/decoded video information. Discontinuities are identified and smoothed to reduce blockiness, for example at macroblock boundaries in conjunction with Moving Picture Expert Group (MPEG)-based schemes. In exemplary implementation(s), a client device detects discontinuities at or near block boundaries, determines which discontinuities are artificial, and smooths at least those discontinuities that are determined to be artificial. These actions may be accomplished using (i) one or more Laplacian of Gaussian (LoG) operations as applied to both an image and a quantization matrix and (ii) windowed comparisons between values and a threshold resulting from the LoG operations. Alternatively, these actions may be accomplished using a spatio-temporally varying filter. Additionally, in an MPEG context, intra image units may be deblocked using the former approach while non-intra image units may be deblocked using the latter approach.

8. 发明授权

US08705630B2 Adapting one type of encoder to another type of encoder 有权
标题翻译：将一种类型的编码器适配到另一种类型的编码器
公开(公告)号：US08705630B2
公开(公告)日：2014-04-22
申请号：US11636104
申请日：2006-12-08
申请人： Derek Pappas , Atul Garg , Shankar Moni , Harikrishna M. Reddy , Matthew R. Longnecker , Christopher L. Mills , Ignatius B. Tjandrasuwita
发明人： Derek Pappas , Atul Garg , Shankar Moni , Harikrishna M. Reddy , Matthew R. Longnecker , Christopher L. Mills , Ignatius B. Tjandrasuwita
IPC分类号： H04B1/66 , H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/196 , H04N19/436 , H04N19/51 , H04N19/513
摘要： Described are methods and systems for processing data. A motion estimator uses a block of an input frame of video data and a block of a reference frame of video data to generate motion vectors according to a first encoding scheme. A motion compensator produces half pel motion vectors from the motion vectors according to a second encoding scheme that is different from the first encoding scheme.
摘要翻译：描述了用于处理数据的方法和系统。运动估计器使用视频数据的输入帧的块和视频数据的参考帧的块来生成根据第一编码方案的运动矢量。运动补偿器根据与第一编码方案不同的第二编码方案从运动矢量产生半像素运动矢量。

9. 发明申请

US20100128788A1 SYSTEM AND METHOD FOR INTRA REFRESH IMPLEMENTATION WITH PSEUDO RANDOM NUMBER GENERATION 有权
标题翻译：用PSEUDO随机数生成进行内部实现的系统和方法
公开(公告)号：US20100128788A1
公开(公告)日：2010-05-27
申请号：US12650233
申请日：2009-12-30
申请人： Iole Moccagatta , Atul Garg , Shankar Moni , Dipankar Talukdar , Ignatius B. Tjandrasuwita , Sandeep Shyamsukha
发明人： Iole Moccagatta , Atul Garg , Shankar Moni , Dipankar Talukdar , Ignatius B. Tjandrasuwita , Sandeep Shyamsukha
IPC分类号： H04N7/32
CPC分类号： H04N19/17 , H04N19/107 , H04N19/136 , H04N19/176 , H04N19/61
摘要： Embodiments of the present invention include a method and system for encoding video data comprising accessing a picture to be encoded, wherein the picture comprises a plurality of macro-blocks. A plurality of programmable counters is associated with each macro-block to be encoded. A counter associated with a macro-block of the plurality of macro-blocks is accessed and a value of the counter is determined. The method further includes determining whether to encode the macro-block as an Intra or non-Intra based on the value of the counter. If the macro-block is encoded as Intra, its counter is reset. If the macro-block is encoded as non-Intra, its counter value is updated. The counter value may be reset with a random number. Counters can be programmed such that a region of interest is defined for updating associated macro-blocks with greater frequency.
摘要翻译：本发明的实施例包括一种用于对视频数据进行编码的方法和系统，包括访问要编码的图像，其中该图像包括多个宏块。多个可编程计数器与要编码的每个宏块相关联。访问与多个宏块中的宏块相关联的计数器，并且确定计数器的值。该方法还包括基于计数器的值来确定是否将宏块编码为Intra或非Intra。如果宏块被编码为Intra，则其计数器被复位。如果宏块被编码为非Intra，则其计数器值被更新。计数器值可以用随机数复位。可以对计数器进行编程，使得定义感兴趣区域以更新频率更新相关联的宏块。

10. 发明授权

US06950463B2 Non-compensated transcoding of a video stream 失效
标题翻译：视频流的非补偿转码
公开(公告)号：US06950463B2
公开(公告)日：2005-09-27
申请号：US09880243
申请日：2001-06-13
申请人： Shankar Moni , Andrew W. Walters , John A. Tardif , Padma Parthasarathy
发明人： Shankar Moni , Andrew W. Walters , John A. Tardif , Padma Parthasarathy
IPC分类号： G06T9/00 , H04N7/26 , H04N7/30 , H04N7/50 , H04N7/12
CPC分类号： H04N19/40 , H04N19/115 , H04N19/126 , H04N19/152 , H04N19/162 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/42 , H04N19/60 , H04N19/61
摘要： Systems and methods for transcoding a transport stream or a video stream. A video stream includes a quantization matrix and a quantization scale that define how DCT frequency coefficients are quantized. A transport stream is transcoded by updating the quantization matrix and/or the quantization scale such that a new set of DCT frequency coefficients may be generated. Typically the quantization scale and/or the quantization matrix are updated such that the DCT frequency coefficients are more coarsely quantized such that their encoding consumes fewer bits. The quantization matrix can be updated such that select frequency coefficients are affected. Transcoding can operate at any level of the video stream, such as the frame level, the slice level, or the macroblock level. The bit rate of the video stream can therefore be adjusted or altered according to a current quantization level and a current bit rate.
摘要翻译：用于对传输流或视频流进行代码转换的系统和方法。视频流包括定义DCT频率系数如何量化的量化矩阵和量化比例。通过更新量化矩阵和/或量化尺度来转码传输流，使得可以生成新的DCT频率系数集合。通常，量化尺度和/或量化矩阵被更新，使得DCT频率系数被更粗略量化，使得它们的编码消耗较少的位。可以更新量化矩阵，使得选择频率系数受到影响。转码可以在视频流的任何级别（例如帧级，片级或宏块级）上操作。因此，可以根据当前的量化级别和当前比特率来调整或改变视频流的比特率。

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