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1. 发明授权

US09191284B2 Methods and apparatus for providing a media stream quality signal 有权
标题翻译：提供媒体流质量信号的方法和装置
公开(公告)号：US09191284B2
公开(公告)日：2015-11-17
申请号：US13283898
申请日：2011-10-28
申请人： Roman Kordasiewicz , Anthony Joch , Kevin Goertz , Michael Gallant
发明人： Roman Kordasiewicz , Anthony Joch , Kevin Goertz , Michael Gallant
IPC分类号： G06F15/173 , H04L12/24 , H04L12/26 , H04N17/00 , H04N21/44 , H04N21/442 , H04L29/06
CPC分类号： H04L41/5025 , H04L41/145 , H04L43/0894 , H04L65/1083 , H04L65/80 , H04N17/004 , H04N21/44004 , H04N21/44209
摘要： Systems, methods and apparatus are provided for computing quality scores for a media session delivered using an adaptive streaming protocol, where the quality score may be an estimate of a mean opinion score. The quality score reflects the impact of network delivery on a viewer's quality of experience (QoE). In particular, the quality score is generally based on the effects of stream switch events, as stream switches may be the result of impaired network delivery. Other network events, such as re-buffering events may also be incorporated in the score.
摘要翻译：提供了用于计算使用自适应流传输协议传递的媒体会话的质量得分的系统，方法和装置，其中质量得分可以是平均意见分数的估计。质量得分反映了网络传递对观众体验质量（QoE）的影响。特别地，质量得分通常基于流切换事件的影响，因为流切换可能是网络传送受损的结果。其他网络事件，如重新缓冲事件也可以纳入评分。

2. 发明申请

US20120117225A1 METHODS AND APPARATUS FOR PROVIDING A MEDIA STREAM QUALITY SIGNAL 有权
标题翻译：提供媒体流质量信号的方法和装置
公开(公告)号：US20120117225A1
公开(公告)日：2012-05-10
申请号：US13283898
申请日：2011-10-28
申请人： Roman Kordasiewicz , Anthony Joch , Kevin Goertz , Michael Gallant
发明人： Roman Kordasiewicz , Anthony Joch , Kevin Goertz , Michael Gallant
IPC分类号： G06F15/173
CPC分类号： H04L41/5025 , H04L41/145 , H04L43/0894 , H04L65/1083 , H04L65/80 , H04N17/004 , H04N21/44004 , H04N21/44209
摘要： Systems, methods and apparatus are provided for computing quality scores for a media session delivered using an adaptive streaming protocol, where the quality score may be an estimate of a mean opinion score. The quality score reflects the impact of network delivery on a viewer's quality of experience (QoE). In particular, the quality score is generally based on the effects of stream switch events, as stream switches may be the result of impaired network delivery. Other network events, such as re-buffering events may also be incorporated in the score.
摘要翻译：提供了用于计算使用自适应流传输协议传递的媒体会话的质量得分的系统，方法和装置，其中质量得分可以是平均意见分数的估计。质量得分反映了网络传递对观众体验质量（QoE）的影响。特别地，质量得分通常基于流切换事件的影响，因为流切换可能是网络传送受损的结果。其他网络事件，如重新缓冲事件也可以纳入评分。

3. 发明申请

US20060104349A1 Low-complexity deblocking filter 有权
标题翻译：低复杂度去块滤波器
公开(公告)号：US20060104349A1
公开(公告)日：2006-05-18
申请号：US10300849
申请日：2002-11-21
申请人： Anthony Joch , James Au , Yu-sheng Lin
发明人： Anthony Joch , James Au , Yu-sheng Lin
IPC分类号： H04N7/12
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/159 , H04N19/176
摘要： A method of filtering to remove coding artifacts introduced at block edges in a block-based video coder, the method having the steps of: checking the content activity on every line of samples belonging to a boundary to be filtered and where content activity is based on a set of adaptively selected thresholds determined using Variable-Shift Table Indexing (VSTI); determining whether the filtering process will modify the sample values on that particular line based on said content activity; and selecting a filtering mode between at least two filtering modes to apply on a block boundary basis, implying that there would be no switching between the two primary modes on a line by line basis along a given block boundary. The two filtering modes include a default mode based on a non-recursive filter, and a strong filtering mode which features two strong filtering sub-modes and a new selection criterion that is one-sided with respect to the block boundary to determine which of the two strong filtering sub-modes to use. The two strong filtering sub-modes include a new 3-tap filter sub-mode and a 5-tap filter sub-mode that permits a more efficient implementation of the filter.
摘要翻译：一种过滤以消除在基于块的视频编码器中在块边缘处引入的编码伪像的方法，该方法具有以下步骤：检查属于要被滤波的边界的样本的每行上的内容活动，并且其中内容活动基于使用变换表索引（VSTI）确定的一组自适应选择的阈值; 确定所述过滤过程是否将基于所述内容活动修改所述特定行上的样本值; 并且在至少两个滤波模式之间选择滤波模式以在块边界基础上应用，这意味着沿给定块边界逐行地在两个主模式之间不会有切换。两种滤波模式包括基于非递归滤波器的默认模式，以及强滤波模式，其具有两个强滤波子模式和相对于块边界单侧的新选择标准，以确定哪个两个强大的过滤子模式使用。两个强滤波子模式包括新的3抽头滤波器子模式和5抽头滤波器子模式，允许更有效地实现滤波器。

4. 发明授权

US08711937B2 Low-complexity motion vector prediction systems and methods 有权
标题翻译：低复杂度运动矢量预测系统和方法
公开(公告)号：US08711937B2
公开(公告)日：2014-04-29
申请号：US12172790
申请日：2008-07-14
申请人： Anthony Joch , Faouzi Kossentini
发明人： Anthony Joch , Faouzi Kossentini
IPC分类号： H04N7/36
CPC分类号： H04N19/51 , H04N19/573
摘要： A method of motion vector prediction for use in differential motion vector coding within a block motion-compensation-based video coder. The video coder employs a generalized multiple reference picture buffer which may contain multiple reference pictures in both the forward and backward temporal direction from the current picture. For the purpose of coding selections of reference pictures within the buffer, the pictures are organized into two, potentially overlapping, lists of reference pictures. The prediction of a motion vector that selects a reference picture using a given reference picture list is not dependent upon any motion vectors that select their reference pictures using the other reference picture list. The values of spatially neighboring motion vectors that use the same list of reference pictures as the motion vector being predicted are used for prediction, regardless of the relative temporal direction of the current and neighboring motion vectors.
摘要翻译：一种运动矢量预测方法，用于基于块运动补偿的视频编码器中的差分运动矢量编码。视频编码器采用广义多参考图像缓冲器，其可以在当前图像的前后时间方向上包含多个参考图像。为了对缓冲器内的参考图像的选择进行编码，将图像组织成参考图片的两个可能重叠的列表。使用给定参考图片列表来选择参考图片的运动矢量的预测不依赖于使用另一参考图片列表选择它们的参考图片的任何运动矢量。使用与所预测的运动矢量相同的参考图像列表的空间相邻运动矢量的值被用于预测，而不管当前和相邻运动矢量的相对时间方向如何。

5. 发明授权

US07869523B2 Low complexity deblocking filter 有权
标题翻译：低复杂度去块滤波器
公开(公告)号：US07869523B2
公开(公告)日：2011-01-11
申请号：US11275921
申请日：2006-02-03
申请人： Anthony Joch , James Au , Yu-Sheng Brandon Lin
发明人： Anthony Joch , James Au , Yu-Sheng Brandon Lin
IPC分类号： H04N7/18
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/159 , H04N19/176
摘要： A method of filtering to remove coding artifacts introduced at block edges in a block-based video coder, the method having the steps of: checking the content activity on every line of samples belonging to a boundary to be filtered and where content activity is based on a set of adaptively selected thresholds determined using Variable-Shift Table Indexing (VSTI); determining whether the filtering process will modify the sample values on that particular line based on said content activity; and selecting a filtering mode between at least two filtering modes to apply on a block boundary basis, implying that there would be no switching between the two primary modes on a line by line basis along a given block boundary. The two filtering modes include a default mode based on a non-recursive filter, and a strong filtering mode which features two strong filtering sub-modes and a new selection criterion that is one-sided with respect to the block boundary to determine which of the two strong filtering sub-modes to use. The two strong filtering sub-modes include a new 3-tap filter sub-mode and a 5-tap filter sub-mode that permits a more efficient implementation of the filter.
摘要翻译：一种过滤以消除在基于块的视频编码器中在块边缘处引入的编码伪像的方法，该方法具有以下步骤：检查属于要过滤的边界的每一行样本上的内容活动，并且其中内容活动基于使用变换表索引（VSTI）确定的一组自适应选择的阈值; 确定所述过滤过程是否将基于所述内容活动修改所述特定行上的样本值; 并且在至少两个滤波模式之间选择滤波模式以在块边界基础上应用，这意味着沿给定块边界逐行地在两个主模式之间不会有切换。两种滤波模式包括基于非递归滤波器的默认模式，以及强滤波模式，其具有两个强滤波子模式和相对于块边界单侧的新选择标准，以确定哪个两个强大的过滤子模式使用。两个强滤波子模式包括新的3抽头滤波器子模式和5抽头滤波器子模式，允许更有效地实现滤波器。

6. 发明申请

US20070030902A1 Method and apparatus for VC-1 to MPEG-2 video transcoding 有权
标题翻译：用于VC-1到MPEG-2视频转码的方法和装置
公开(公告)号：US20070030902A1
公开(公告)日：2007-02-08
申请号：US11198448
申请日：2005-08-05
申请人： Lowell Winger , Guy Cote , Anthony Joch
发明人： Lowell Winger , Guy Cote , Anthony Joch
IPC分类号： H04N11/02 , H04N11/04
CPC分类号： H04N19/40 , H04N19/112 , H04N19/16 , H04N19/176 , H04N19/42 , H04N19/513 , H04N19/61
摘要： A method for transcoding from a VC-1 format to an MPEG-2 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the VC-1 format to generate a picture; (B) determining a first mode indicator for the picture; and (C) coding the picture into an output video stream in the MPEG-2 format using one of (i) an MPEG-2 field mode coding and (ii) an MPEG-2 frame mode coding as determined from the first mode indicator.
摘要翻译：公开了一种从VC-1格式转换为MPEG-2格式的方法。该方法通常包括以下步骤：（A）以VC-1格式解码输入视频流以产生图像; （B）确定图像的第一模式指示符; 以及（C）使用（i）从第一模式指示符确定的MPEG-2场模式编码和（ii）MPEG-2帧模式编码之一，将图像编码为MPEG-2格式的输出视频流。

7. 发明申请

US20070030901A1 H.264 to VC-1 and VC-1 to H.264 transcoding 有权
标题翻译： H.264到VC-1和VC-1到H.264的转码
公开(公告)号：US20070030901A1
公开(公告)日：2007-02-08
申请号：US11198435
申请日：2005-08-05
申请人： Anthony Joch , Lowell Winger
发明人： Anthony Joch , Lowell Winger
IPC分类号： H04N11/02 , H04N11/04
CPC分类号： H04N19/112 , H04N19/16 , H04N19/176 , H04N19/40 , H04N19/42 , H04N19/61
摘要： A method for transcoding from an H.264 format to a VC-1 format. The method generally comprises the steps of (A) decoding an input video stream in the H.264 format to generate a picture having a plurality of macroblock pairs that used an H.264 macroblock adaptive field/frame coding; (B) determining a mode indicator for each of the macroblock pairs; and (C) coding the macroblock pairs into an output video stream in the VC-1 format using one of (i) a VC-1 field motion compensation mode coding and (ii) a VC-1 frame motion compensation mode coding as determined from the mode indicator.
摘要翻译：一种从H.264格式转码为VC-1格式的方法。该方法通常包括以下步骤：（A）以H.264格式解码输入视频流，以产生具有使用H.264宏块自适应字段/帧编码的多个宏块对的图像; （B）确定每个宏块对的模式指示符; 以及（C）使用（i）VC-1场运动补偿模式编码和（ii）VC-1帧运动补偿模式编码中的一个将所述宏块对编码为VC-1格式的输出视频流，模式指示器。

8. 发明申请

US20050117646A1 Low-complexity motion vector prediction for video codec with two lists of reference pictures 有权
标题翻译：具有两个参考图片列表的视频编解码器的低复杂度运动矢量预测
公开(公告)号：US20050117646A1
公开(公告)日：2005-06-02
申请号：US10722474
申请日：2003-11-28
申请人： Anthony Joch , Faouzi Kossentini
发明人： Anthony Joch , Faouzi Kossentini
IPC分类号： H04N7/12 , H04N7/36
CPC分类号： H04N19/51 , H04N19/573
摘要： A method of motion vector prediction for use in differential motion vector coding within a block motion-compensation-based video coder. The video coder employs a generalized multiple reference picture buffer which may contain multiple reference pictures in both the forward and backward temporal direction from the current picture. For the purpose of coding selections of reference pictures within the buffer, the pictures are organized into two, potentially overlapping, lists of reference pictures. The prediction of a motion vector that selects a reference picture using a given reference picture list is not dependent upon any motion vectors that select their reference pictures using the other reference picture list. The values of spatially neighbouring motion vectors that use the same list of reference pictures as the notion vector being predicted are used for prediction, regardless of the relative temporal direction of the current and neighbouring motion vectors.
摘要翻译：一种运动矢量预测方法，用于基于块运动补偿的视频编码器中的差分运动矢量编码。视频编码器采用广义多参考图像缓冲器，其可以在当前图像的前后时间方向上包含多个参考图像。为了对缓冲器内的参考图像的选择进行编码，将图像组织成参考图片的两个可能重叠的列表。使用给定参考图片列表来选择参考图片的运动矢量的预测不依赖于使用另一参考图片列表选择它们的参考图片的任何运动矢量。使用与正在预测的概念向量相同的参考图像列表的空间相邻运动矢量的值被用于预测，而不管当前和相邻运动矢量的相对时间方向如何。

9. 发明申请

US20090034621A1 Low-Complexity Motion Vector Prediction Systems and Methods 有权
标题翻译：低复杂度运动矢量预测系统和方法
公开(公告)号：US20090034621A1
公开(公告)日：2009-02-05
申请号：US12172790
申请日：2008-07-14
申请人： Anthony Joch , Faouzi Kossentini
发明人： Anthony Joch , Faouzi Kossentini
IPC分类号： H04N7/26
CPC分类号： H04N19/51 , H04N19/573
摘要： A method of motion vector prediction for use in differential motion vector coding within a block motion-compensation-based video coder. The video coder employs a generalized multiple reference picture buffer which may contain multiple reference pictures in both the forward and backward temporal direction from the current picture. For the purpose of coding selections of reference pictures within the buffer, the pictures are organized into two, potentially overlapping, lists of reference pictures. The prediction of a motion vector that selects a reference picture using a given reference picture list is not dependent upon any motion vectors that select their reference pictures using the other reference picture list. The values of spatially neighbouring motion vectors that use the same list of reference pictures as the motion vector being predicted are used for prediction, regardless of the relative temporal direction of the current and neighbouring motion vectors.
摘要翻译：一种运动矢量预测方法，用于基于块运动补偿的视频编码器中的差分运动矢量编码。视频编码器采用广义多参考图像缓冲器，其可以在当前图像的前后时间方向上包含多个参考图像。为了对缓冲器内的参考图像的选择进行编码，将图像组织成参考图片的两个可能重叠的列表。使用给定参考图片列表来选择参考图片的运动矢量的预测不依赖于使用另一参考图片列表选择它们的参考图片的任何运动矢量。使用与所预测的运动矢量相同的参考图像列表的空间相邻运动矢量的值被用于预测，而不管当前和相邻运动矢量的相对时间方向如何。

10. 发明授权

US07400681B2 Low-complexity motion vector prediction for video codec with two lists of reference pictures 有权
标题翻译：具有两个参考图片列表的视频编解码器的低复杂度运动矢量预测
公开(公告)号：US07400681B2
公开(公告)日：2008-07-15
申请号：US10722474
申请日：2003-11-28
申请人： Anthony Joch , Faouzi Kossentini
发明人： Anthony Joch , Faouzi Kossentini
IPC分类号： H04N7/18
CPC分类号： H04N19/51 , H04N19/573
摘要： A method of motion vector prediction for use in differential motion vector coding within a block motion-compensation-based video coder. The video coder employs a generalized multiple reference picture buffer which may contain multiple reference pictures in both the forward and backward temporal direction from the current picture. For the purpose of coding selections of reference pictures within the buffer, the pictures are organized into two, potentially overlapping, lists of reference pictures. The prediction of a motion vector that selects a reference picture using a given reference picture list is not dependent upon any motion vectors that select their reference pictures using the other reference picture list. The values of spatially neighbouring motion vectors that use the same list of reference pictures as the notion vector being predicted are used for prediction, regardless of the relative temporal direction of the current and neighbouring motion vectors.
摘要翻译：一种运动矢量预测方法，用于基于块运动补偿的视频编码器中的差分运动矢量编码。视频编码器采用广义多参考图像缓冲器，其可以在当前图像的前后时间方向上包含多个参考图像。为了对缓冲器内的参考图像的选择进行编码，将图像组织成参考图片的两个可能重叠的列表。使用给定参考图片列表来选择参考图片的运动矢量的预测不依赖于使用另一参考图片列表选择它们的参考图片的任何运动矢量。使用与正在预测的概念向量相同的参考图像列表的空间相邻运动矢量的值被用于预测，而不管当前和相邻运动矢量的相对时间方向如何。

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