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1. 发明申请

US20070237224A1 Method of reducing computations in intra-prediction and mode decision processes in a digital video encoder 有权
标题翻译：减少数字视频编码器内帧内预测和模式决策过程中的计算的方法
公开(公告)号：US20070237224A1
公开(公告)日：2007-10-11
申请号：US11391801
申请日：2006-03-28
申请人： Rathish Krishnan
发明人： Rathish Krishnan
IPC分类号： H04N7/12
CPC分类号： H04N19/593 , H04N19/42 , H04N19/61
摘要： A method of improving the computation speed of the sum of absolute transformed distances (SATD) for different intra-prediction modes is described. Determining the SATD quicker provides the benefits of better coding performance without suffering the drawbacks of longer computation times. The method of reducing intra-prediction and mode decision processes in a video encoder, implements Hadamard transforms with improvements. Hadamard transforms are performed on an original block and predicted blocks and calculations are only performed where coefficients are non-zero thus skipping the coefficients that are zero. Using such an approach, the calculations required for the Vertical Prediction, Horizontal Prediction and DC Prediction are reduced significantly. Thus, the best intra-prediction mode is able to be determined very efficiently.
摘要翻译：描述了一种提高不同帧内预测模式的绝对变换距离（SATD）之和的计算速度的方法。更快地确定SATD提供了更好的编码性能的好处，而不会带来更长的计算时间的缺点。减少视频编码器中的帧内预测和模式决策过程的方法，具有改进的Hadamard变换。在原始块上执行Hadamard变换，并且仅在系数不为零的情况下执行预测块和计算，从而跳过为零的系数。使用这种方法，垂直预测，水平预测和直流预测所需的计算显着减少。因此，能够非常有效地确定最佳的帧内预测模式。

2. 发明申请

US20140087877A1 COMPOSITING INTERACTIVE VIDEO GAME GRAPHICS WITH PRE-RECORDED BACKGROUND VIDEO CONTENT 审中-公开
标题翻译：具有预先记录的背景视频内容的组合交互式视频游戏图形
公开(公告)号：US20140087877A1
公开(公告)日：2014-03-27
申请号：US13629522
申请日：2012-09-27
申请人： Rathish Krishnan
发明人： Rathish Krishnan
IPC分类号： A63F13/02
CPC分类号： A63F13/525 , A63F13/65 , G06T11/00
摘要： A method for compositing realistic video game graphics for video games is disclosed. The method includes rendering images of interactive game objects based on the current gameplay and virtual game camera parameters such as a pan angle, tilt angle, roll angle, and zoom data. The rendered images constitute the foreground of a game's display, which is superimposed on prerecorded video content. The prerecorded video content constitutes the background of the game display and may include one or more real live videos or animation transformed from a prerecorded panoramic video based on the virtual game camera parameters and the gameplay. The generation and superimposition of the foreground images and background videos can be performed repeatedly using synchronization methods to dynamically reflect the user actions within the virtual game environment.
摘要翻译：公开了一种用于合成视频游戏的逼真视频游戏图形的方法。该方法包括基于当前的游戏和虚拟游戏相机参数（诸如摇摄角度，倾斜角度，滚动角度和缩放数据）来渲染交互式游戏对象的图像。渲染的图像构成游戏显示的前景，其叠加在预先记录的视频内容上。预先记录的视频内容构成游戏显示的背景，并且可以包括基于虚拟游戏相机参数和游戏玩法的从预先记录的全景视频转换的一个或多个真实实况视频或动画。可以使用同步方法重复地执行前景图像和背景视频的生成和叠加，以动态地反映虚拟游戏环境内的用户动作。

3. 发明授权

US08184699B2 Method of reducing computations in intra-prediction and mode decision processes in a digital video encoder 有权
标题翻译：减少数字视频编码器内帧内预测和模式决策过程中的计算的方法
公开(公告)号：US08184699B2
公开(公告)日：2012-05-22
申请号：US13044280
申请日：2011-03-09
申请人： Rathish Krishnan
发明人： Rathish Krishnan
IPC分类号： H04B1/66
CPC分类号： H04N19/593 , H04N19/42 , H04N19/61
摘要： A method of improving the computation speed of the sum of absolute transformed distances (SATD) for different intra-prediction modes is described. Determining the SATD quicker provides the benefits of better coding performance without suffering the drawbacks of longer computation times. The method of reducing intra-prediction and mode decision processes in a video encoder, implements Hadamard transforms with improvements. Hadamard transforms are performed on an original block and predicted blocks and calculations are only performed where coefficients are non-zero thus skipping the coefficients that are zero. Using such an approach, the calculations required for the Vertical Prediction, Horizontal Prediction and DC Prediction are reduced significantly. Thus, the best intra-prediction mode is able to be determined very efficiently.
摘要翻译：描述了一种提高不同帧内预测模式的绝对变换距离（SATD）之和的计算速度的方法。更快地确定SATD提供了更好的编码性能的好处，而不会带来更长的计算时间的缺点。减少视频编码器中的帧内预测和模式决策过程的方法，具有改进的Hadamard变换。在原始块上执行Hadamard变换，并且仅在系数不为零的情况下执行预测块和计算，从而跳过为零的系数。使用这种方法，垂直预测，水平预测和直流预测所需的计算显着减少。因此，能够非常有效地确定最佳的帧内预测模式。

4. 发明申请

US20110158317A1 METHOD OF REDUCING COMPUTATIONS IN INTRA-PREDICTION AND MODE DECISION PROCESSES IN A DIGITAL VIDEO ENCODER 有权
标题翻译：降低数字视频编码器内部预测和模式决策过程中的计算的方法
公开(公告)号：US20110158317A1
公开(公告)日：2011-06-30
申请号：US13044280
申请日：2011-03-09
申请人： Rathish Krishnan
发明人： Rathish Krishnan
IPC分类号： H04N7/32
CPC分类号： H04N19/593 , H04N19/42 , H04N19/61
摘要： A method of improving the computation speed of the sum of absolute transformed distances (SATD) for different intra-prediction modes is described. Determining the SATD quicker provides the benefits of better coding performance without suffering the drawbacks of longer computation times. The method of reducing intra-prediction and mode decision processes in a video encoder, implements Hadamard transforms with improvements. Hadamard transforms are performed on an original block and predicted blocks and calculations are only performed where coefficients are non-zero thus skipping the coefficients that are zero. Using such an approach, the calculations required for the Vertical Prediction, Horizontal Prediction and DC Prediction are reduced significantly. Thus, the best intra-prediction mode is able to be determined very efficiently.
摘要翻译：描述了一种提高不同帧内预测模式的绝对变换距离（SATD）之和的计算速度的方法。更快地确定SATD提供了更好的编码性能的好处，而不会带来更长的计算时间的缺点。减少视频编码器中的帧内预测和模式决策过程的方法，具有改进的Hadamard变换。在原始块上执行Hadamard变换，并且仅在系数不为零的情况下执行预测块和计算，从而跳过为零的系数。使用这种方法，垂直预测，水平预测和直流预测所需的计算显着减少。因此，能够非常有效地确定最佳的帧内预测模式。

5. 发明申请

US20070237235A1 Method of reducing computations in transform and scaling processes in a digital video encoder using a threshold-based approach 有权
标题翻译：使用基于阈值的方法减少数字视频编码器中的变换和缩放过程中的计算的方法
公开(公告)号：US20070237235A1
公开(公告)日：2007-10-11
申请号：US11392320
申请日：2006-03-28
申请人： Rathish Krishnan
发明人： Rathish Krishnan
IPC分类号： H04N11/04 , H04N7/12
CPC分类号： H04N19/59 , H04N19/132 , H04N19/176 , H04N19/18 , H04N19/42 , H04N19/61
摘要： A method of reducing computations utilizing a threshold to increase efficiency and speed of a video encoder is described. Computations of transform and scaling processes of a video encoder are able to be streamlined by utilizing one or more thresholds stored within one or more lookup tables. A selected threshold is compared with a value before scaling. If the value before scaling is less than the threshold, it is known that the coefficient will be zero and thus no further computations are required. Furthermore, the coefficient is set to zero. If the value before scaling is greater than the threshold, then further calculations are performed. The method is able to be extended to eliminate computations in forward transform as well. By skipping computations when the coefficient is zero, the method eliminates wasted computation power and time.
摘要翻译：描述了使用阈值来减少计算以提高视频编码器的效率和速度的方法。视频编码器的变换和缩放过程的计算能够通过利用存储在一个或多个查找表中的一个或多个阈值来简化。将选定的阈值与缩放之前的值进行比较。如果缩放之前的值小于阈值，则已知系数将为零，因此不需要进一步的计算。此外，系数设置为零。如果缩放之前的值大于阈值，则进行进一步的计算。该方法能够扩展，以消除正向变换中的计算。通过在系数为零时跳过计算，该方法消除了浪费的计算能力和时间。

6. 发明授权

US08848799B2 Utilizing thresholds and early termination to achieve fast motion estimation in a video encoder 有权
标题翻译：利用阈值和提前终止来实现视频编码器中的快速运动估计
公开(公告)号：US08848799B2
公开(公告)日：2014-09-30
申请号：US12553075
申请日：2009-09-02
申请人： Rathish Krishnan , Milan Mehta
发明人： Rathish Krishnan , Milan Mehta
IPC分类号： H04N11/02 , H04N19/61 , H04N19/557
CPC分类号： H04N7/26835 , H04N19/557 , H04N19/61
摘要： Fast motion estimation in video encoding may be implemented using early termination. One or more section sizes in a current video picture may be determined for which a portion of motion estimation can be skipped during encoding of the current video picture. The portion of motion estimation may be performed on the current video picture on a section-by-section basis only for one or more section sizes not skipped. The picture may be encoded using the motion estimation performed in b) to produce an encoded picture. The resulting encoded picture may be stored or transmitted. The speedup achieved by skipping part of motion estimation may be regulated by selection of a quality control value.
摘要翻译：可以使用提前终止来实现视频编码中的快速运动估计。可以确定当前视频图像中的一个或多个部分尺寸，在当前视频图像的编码期间可以跳过一部分运动估计。运动估计的部分可以仅对于不跳过的一个或多个截面尺寸在逐个部分的基础上对当前视频图像执行。可以使用在b）中执行的运动估计来编码图像以产生编码图像。所得到的编码图像可以被存储或发送。通过跳过运动估计的一部分实现的加速可以通过选择质量控制值来调节。

7. 发明授权

US07929608B2 Method of reducing computations in intra-prediction and mode decision processes in a digital video encoder 有权
标题翻译：减少数字视频编码器内帧内预测和模式决策过程中的计算的方法
公开(公告)号：US07929608B2
公开(公告)日：2011-04-19
申请号：US11391801
申请日：2006-03-28
申请人： Rathish Krishnan
发明人： Rathish Krishnan
IPC分类号： H04B1/66
CPC分类号： H04N19/593 , H04N19/42 , H04N19/61
摘要： A method of improving the computation speed of the sum of absolute transformed distances (SATD) for different intra-prediction modes is described. Determining the SATD quicker provides the benefits of better coding performance without suffering the drawbacks of longer computation times. The method of reducing intra-prediction and mode decision processes in a video encoder, implements Hadamard transforms with improvements. Hadamard transforms are performed on an original block and predicted blocks and calculations are only performed where coefficients are non-zero thus skipping the coefficients that are zero. Using such an approach, the calculations required for the Vertical Prediction, Horizontal Prediction and DC Prediction are reduced significantly. Thus, the best intra-prediction mode is able to be determined very efficiently.
摘要翻译：描述了一种提高不同帧内预测模式的绝对变换距离（SATD）之和的计算速度的方法。更快地确定SATD提供了更好的编码性能的好处，而不会带来更长的计算时间的缺点。减少视频编码器中的帧内预测和模式决策过程的方法，具有改进的Hadamard变换。在原始块上执行Hadamard变换，并且仅在系数不为零的情况下执行预测块和计算，从而跳过为零的系数。使用这种方法，垂直预测，水平预测和直流预测所需的计算显着减少。因此，能够非常有效地确定最佳的帧内预测模式。

8. 发明申请

US20110051813A1 UTILIZING THRESHOLDS AND EARLY TERMINATION TO ACHIEVE FAST MOTION ESTIMATION IN A VIDEO ENCODER 有权
标题翻译：使用阈值和早期终止在视频编码器中实现快速运动估计
公开(公告)号：US20110051813A1
公开(公告)日：2011-03-03
申请号：US12553075
申请日：2009-09-02
申请人： Rathish Krishnan , Milan Mehta
发明人： Rathish Krishnan , Milan Mehta
IPC分类号： H04N7/26
CPC分类号： H04N7/26835 , H04N19/557 , H04N19/61
摘要： Fast motion estimation in video encoding may be implemented using early termination. One or more section sizes in a current video picture may be determined for which a portion of motion estimation can be skipped during encoding of the current video picture. The portion of motion estimation may be performed on the current video picture on a section-by-section basis only for one or more section sizes not skipped. The picture may be encoded using the motion estimation performed in b) to produce an encoded picture. The resulting encoded picture may be stored or transmitted. The speedup achieved by skipping part of motion estimation may be regulated by selection of a quality control value.
摘要翻译：可以使用提前终止来实现视频编码中的快速运动估计。可以确定当前视频图像中的一个或多个部分尺寸，在当前视频图像的编码期间可以跳过一部分运动估计。运动估计的部分可以仅对于不跳过的一个或多个截面尺寸在逐个部分的基础上对当前视频图像执行。可以使用在b）中执行的运动估计来编码图像以产生编码图像。所得到的编码图像可以被存储或发送。通过跳过运动估计的一部分实现的加速可以通过选择质量控制值来调节。

9. 发明申请

US20110051811A1 PARALLEL DIGITAL PICTURE ENCODING 有权
标题翻译：并行数字图像编码
公开(公告)号：US20110051811A1
公开(公告)日：2011-03-03
申请号：US12553073
申请日：2009-09-02
申请人： Jason N. Wang , Rathish Krishnan , Michael Kutner , Milan Mehta , Cheng Huang , Yi Luo , Jon Brelin
发明人： Jason N. Wang , Rathish Krishnan , Michael Kutner , Milan Mehta , Cheng Huang , Yi Luo , Jon Brelin
IPC分类号： H04N7/26 , H04N7/32
CPC分类号： H04N19/50 , H04N19/103 , H04N19/109 , H04N19/11 , H04N19/147 , H04N19/174 , H04N19/176 , H04N19/436 , H04N19/61 , H04N19/86
摘要： Apparatus and Method for parallel digital picture encoding are disclosed. A digital picture is partitioned into two or more vertical sections. An encoder unit is selected to serve as a master and one or more encoder units are selected to serve as slaves. The total number of encoder units used equals the number of vertical sections. A mode search is performed on the two or more vertical sections on a row-by-row basis. Entropy coding is performed on the two or more vertical sections on a row-by-row basis. The entropy coding of each vertical section is performed in parallel such that each encoder unit performs entropy coding on its respective vertical section. De-blocking is performed on the two or more vertical sections in parallel on a row-by-row basis.
摘要翻译：公开了并行数字图像编码的装置和方法。数字图像被分割成两个或更多个垂直部分。选择编码器单元作为主机，并选择一个或多个编码器单元作为从机。使用的编码器单位总数等于垂直段的数量。在逐行的基础上对两个或更多个垂直部分执行模式搜索。在逐行的基础上对两个或多个垂直部分执行熵编码。并行地执行每个垂直部分的熵编码，使得每个编码器单元在其各自的垂直部分上执行熵编码。在逐行的基础上并行地对两个或更多个垂直部分执行解块。

10. 发明申请

US20130156103A1 MODE SEARCHING AND EARLY TERMINATION OF A VIDEO PICTURE AND FAST COMPRESSION OF VARIABLE LENGTH SYMBOLS 有权
标题翻译：视频图像的模式搜索和早期终止和可变长度符号的快速压缩
公开(公告)号：US20130156103A1
公开(公告)日：2013-06-20
申请号：US13769735
申请日：2013-02-18
申请人： Jason N. Wang , Rathish Krishnan , Michael Kutner , Milan Mehta , Cheng Huang , Yi Luo , Jon Brelin
发明人： Jason N. Wang , Rathish Krishnan , Michael Kutner , Milan Mehta , Cheng Huang , Yi Luo , Jon Brelin
IPC分类号： H04N7/26
CPC分类号： H04N19/50 , H04N19/103 , H04N19/109 , H04N19/11 , H04N19/147 , H04N19/174 , H04N19/176 , H04N19/436 , H04N19/61 , H04N19/86
摘要： Mode searching and early termination of a video picture may include determining the cost value of a simple intra-mode prediction of the video picture; determining the cost value of an inter-mode prediction of the video picture; determining a threshold value based on a given quantization parameter (QP); comparing the cost value of the simple intra-mode prediction to the sum of the cost value of the inter-mode prediction and the threshold value; and performing a mode-prediction of the video picture in accordance with the result obtained. Fast compression of variable length symbols may include receiving a variable length symbol with one or more tokens; combining the one or more tokens in the variable length symbol to form a token combination; and determining a bit representation of the token combination in correspondence to a probability threshold associated with the token combination.
摘要翻译：视频图像的模式搜索和提前终止可以包括确定视频图像的简单帧内模式预测的成本值; 确定视频图像的模式间预测的成本值; 基于给定的量化参数（QP）确定阈值; 将简单帧内预测的成本值与帧间模式预测的成本值和阈值的和进行比较; 以及根据获得的结果执行视频图像的模式预测。可变长度符号的快速压缩可以包括用一个或多个令牌接收可变长度符号; 组合可变长度符号中的一个或多个令牌以形成令牌组合; 以及根据与所述令牌组合相关联的概率阈值确定所述令牌组合的比特表示。

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