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21. 发明申请

US20100125768A1 ERROR RESILIENCE IN VIDEO COMMUNICATION BY RETRANSMISSION OF PACKETS OF DESIGNATED REFERENCE FRAMES 审中-公开
标题翻译：通过指定参考框架的分组重新生成视频通信中的错误恢复
公开(公告)号：US20100125768A1
公开(公告)日：2010-05-20
申请号：US12272331
申请日：2008-11-17
申请人： J. William Mauchly , Joseph T. Friel , Dihong Tian
发明人： J. William Mauchly , Joseph T. Friel , Dihong Tian
IPC分类号： H04L1/18 , G06F11/14
CPC分类号： H04L1/1829 , G06F11/1443 , H04L1/1867 , H04L2001/0093 , H04N19/89 , H04N21/6375
摘要： Techniques are provided for video communication between multiple devices. Each of a plurality of video packets is designated as being part of a required reference frame that is subsequently to be used for a repair process. A stream of video packets that includes the packets for the required reference frame is transmitted from a source device over a communication medium for reception by a plurality of destination devices. A determination is made that at least one of the plurality of destination devices did not receive at least one packet of the required reference frame, and the at least one packet is retransmitted the at least one of the plurality of destination devices. When the retransmitted packet is received at the at least one destination device, it is decoded and stored without using it for generating a picture for display at the time that the at least one packet is received.
摘要翻译：为多个设备之间的视频通信提供技术。多个视频分组中的每一个被指定为随后被用于修复处理的所需参考帧的一部分。通过通信介质从源设备发送包括所需参考帧的分组的视频分组流，以便由多个目的设备接收。确定多个目的地设备中的至少一个没有接收到所需参考帧的至少一个分组，并且重传多个目的设备中的至少一个分组。当在至少一个目的地设备处接收到重传的分组时，它被解码和存储，而不使用它来生成在接收至少一个分组时的显示图像。

22. 发明申请

US20080240571A1 REAL-TIME FACE DETECTION USING TEMPORAL DIFFERENCES 有权
标题翻译：使用时间差异的实时表面检测
公开(公告)号：US20080240571A1
公开(公告)日：2008-10-02
申请号：US12031590
申请日：2008-02-14
申请人： Dihong Tian , Joseph T. Friel , J. William Mauchly , Wen-hsiung Chen
发明人： Dihong Tian , Joseph T. Friel , J. William Mauchly , Wen-hsiung Chen
IPC分类号： G06K9/46
CPC分类号： G06T9/001 , G06K9/00234 , G06K9/00986 , G06T9/20 , H04N19/124 , H04N19/136 , H04N19/137 , H04N19/14 , H04N19/17 , H04N19/176 , H04N19/186 , H04N19/436 , H04N19/503
摘要： An apparatus, a method, and a computer-readable medium having instructions encoded thereon that when executed cause a method to be carried out. The method includes dividing at least a portion of a picture of a video stream into parts of blocks, and processing the parts in parallel by a plurality of interconnected processors. The processing of a respective part by its respective processor includes determining block-level temporal difference features. Each processor also performs coding functions on its respective part of the picture. The method also includes block-level processing using the block-level temporal difference features to determine which blocks in the picture are likely to be that of a face, the block-level processing being at the granularity of at least a block. In one version, the processing in each processor includes edge detection and color segmentation to determine block-level edge features including block-level color-segmented edge features that are then used in the block level processing.
摘要翻译：一种装置，方法和计算机可读介质，其具有在其上编码的指令，当执行时，导致执行方法。该方法包括将视频流的图像的至少一部分划分为块的部分，以及由多个互连的处理器并行处理这些部分。通过其相应处理器对相应部分的处理包括确定块级时间差特征。每个处理器还对其图像的相应部分执行编码功能。该方法还包括使用块级时间差特征的块级处理，以确定图片中哪些块可能是面的块，块级处理至少是至少一个块的粒度。在一个版本中，每个处理器中的处理包括边缘检测和颜色分割，以确定块级边缘特征，包括块级颜色分割的边缘特征，然后在块级处理中使用。

23. 发明申请

US20120057636A1 SYSTEM AND METHOD FOR SKIP CODING DURING VIDEO CONFERENCING IN A NETWORK ENVIRONMENT 有权
标题翻译：在网络环境中视频会议期间进行跳码编码的系统和方法
公开(公告)号：US20120057636A1
公开(公告)日：2012-03-08
申请号：US12877833
申请日：2010-09-08
申请人： Dihong Tian , Joseph T. Friel , Andrew P. Weir
发明人： Dihong Tian , Joseph T. Friel , Andrew P. Weir
IPC分类号： H04N7/68 , H04N7/26
CPC分类号： H04N7/147 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/176
摘要： A method is provided in one example and includes receiving an input video, and identifying values of pixels from noise associated with a current video image within the video input. The method also includes creating a skip-reference video image associated with the identified pixel values, and comparing a portion of the current video image to the skip-reference video image. The method also includes determining a macroblock associated with the current video image to be skipped before an encoding operation occurs.
摘要翻译：在一个示例中提供了一种方法，包括接收输入视频，以及从与视频输入内的当前视频图像相关联的噪声中识别像素的值。该方法还包括创建与识别的像素值相关联的跳过参考视频图像，以及将当前视频图像的一部分与跳过参考视频图像进行比较。该方法还包括在编码操作发生之前确定与要跳过的当前视频图像相关联的宏块。

24. 发明授权

US08599934B2 System and method for skip coding during video conferencing in a network environment 有权
标题翻译：网络环境中视频会议过程中跳过编码的系统和方法
公开(公告)号：US08599934B2
公开(公告)日：2013-12-03
申请号：US12877833
申请日：2010-09-08
申请人： Dihong Tian , Joseph T. Friel , Andrew P. Weir
发明人： Dihong Tian , Joseph T. Friel , Andrew P. Weir
IPC分类号： H04N7/12
CPC分类号： H04N7/147 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/176
摘要： A method is provided in one example and includes receiving an input video, and identifying values of pixels from noise associated with a current video image within the video input. The method also includes creating a skip-reference video image associated with the identified pixel values, and comparing a portion of the current video image to the skip-reference video image. The method also includes determining a macroblock associated with the current video image to be skipped before an encoding operation occurs.
摘要翻译：在一个示例中提供了一种方法，包括接收输入视频，以及从与视频输入内的当前视频图像相关联的噪声中识别像素的值。该方法还包括创建与识别的像素值相关联的跳过参考视频图像，以及将当前视频图像的一部分与跳过参考视频图像进行比较。该方法还包括在编码操作发生之前确定与要跳过的当前视频图像相关联的宏块。

25. 发明授权

US08861598B2 Video compression using search techniques of long-term reference memory 有权
标题翻译：视频压缩使用长期参考记忆的搜索技术
公开(公告)号：US08861598B2
公开(公告)日：2014-10-14
申请号：US12051185
申请日：2008-03-19
申请人： William Mauchly , Joseph T. Friel , Alan MacDonald , Dihong Tian , Wen-Hsiung Chen , Michael A. Arnao
发明人： William Mauchly , Joseph T. Friel , Alan MacDonald , Dihong Tian , Wen-Hsiung Chen , Michael A. Arnao
IPC分类号： H04N7/12 , H04N19/176 , H04N19/189 , H04N19/61 , H04N19/58 , G06T7/20 , H04N19/17 , G06F17/30
CPC分类号： H04N7/367 , G06F17/30781 , G06T7/246 , G06T2207/10016 , G06T2207/30196 , H04N19/17 , H04N19/176 , H04N19/46 , H04N19/58 , H04N19/61
摘要： Particular embodiments generally relate to video compression. In one embodiment, a store of reference frames is provided in memory. The reference frames may be classified based on a plurality of classifiers. The classifiers may correspond to features that are found in the reference frame. A frame to encode is then received. The frame is analyzed to determine features found in the frame. As macroblocks in the frame are encoded, a macroblock is analyzed to determine which feature may be included in the macroblock. The feature is used to determine a classifier, which is used to determine a subset of the reference frames. The subset is then searched to determine a reference frame for the macroblock.
摘要翻译：具体实施方案通常涉及视频压缩。在一个实施例中，在存储器中提供参考帧存储。可以基于多个分类器对参考帧进行分类。分类器可以对应于在参考帧中找到的特征。然后接收要编码的帧。分析帧以确定帧中发现的特征。当帧中的宏块被编码时，分析宏块以确定哪个特征可以被包括在宏块中。该特征用于确定分类器，其用于确定参考帧的子集。然后搜索子集以确定宏块的参考帧。

26. 发明申请

US20090238278A1 VIDEO COMPRESSION USING SEARCH TECHNIQUES OF LONG-TERM REFERENCE MEMORY 有权
标题翻译：视频压缩使用长期参考存储器的搜索技术
公开(公告)号：US20090238278A1
公开(公告)日：2009-09-24
申请号：US12051185
申请日：2008-03-19
申请人： William Mauchly , Joseph T. Friel , Alan MacDonald , Dihong Tian , Wen-Hsiung Chen , Michael A. Arnao
发明人： William Mauchly , Joseph T. Friel , Alan MacDonald , Dihong Tian , Wen-Hsiung Chen , Michael A. Arnao
IPC分类号： H04N7/34
CPC分类号： H04N7/367 , G06F17/30781 , G06T7/246 , G06T2207/10016 , G06T2207/30196 , H04N19/17 , H04N19/176 , H04N19/46 , H04N19/58 , H04N19/61
摘要： Particular embodiments generally relate to video compression. In one embodiment, a store of reference frames is provided in memory. The reference frames may be classified based on a plurality of classifiers. The classifiers may correspond to features that are found in the reference frame. A frame to encode is then received. The frame is analyzed to determine features found in the frame. As macroblocks in the frame are encoded, a macroblock is analyzed to determine which feature may be included in the macroblock. The feature is used to determine a classifier, which is used to determine a subset of the reference frames. The subset is then searched to determine a reference frame for the macroblock.
摘要翻译：具体实施方案通常涉及视频压缩。在一个实施例中，在存储器中提供参考帧存储。可以基于多个分类器对参考帧进行分类。分类器可以对应于在参考帧中找到的特征。然后接收要编码的帧。分析帧以确定帧中发现的特征。当帧中的宏块被编码时，分析宏块以确定哪个特征可以被包括在宏块中。该特征用于确定分类器，其用于确定参考帧的子集。然后搜索子集以确定宏块的参考帧。

27. 发明授权

US08934026B2 System and method for video coding in a dynamic environment 有权
标题翻译：在动态环境中进行视频编码的系统和方法
公开(公告)号：US08934026B2
公开(公告)日：2015-01-13
申请号：US13106002
申请日：2011-05-12
申请人： Dihong Tian , Wen-Hsiung Chen
发明人： Dihong Tian , Wen-Hsiung Chen
IPC分类号： H04N5/228 , H04N7/18 , H04N7/14 , H04N21/4223 , H04N21/61 , H04N21/6547 , H04N19/82 , H04N5/232
CPC分类号： H04N21/4223 , H04N5/23206 , H04N19/82 , H04N21/6125 , H04N21/6547
摘要： A method is provided in one example embodiment and includes receiving a camera dynamic parameter; determining a reference transform parameter based on the camera dynamic parameter; applying the reference transform parameter to generate a video image; and encoding the reference transform parameter in a bitstream for transmission with the video image. In other more specific instances, the method may include decoding a particular video image; decoding a particular reference transform parameter; and applying a particular reference transform parameter to the particular video image. The entropy-decoded data can undergo inverse quantization and transformation such that reference transformed data is combined with the entropy-decoded data. Additionally, the entropy-decoded data can be subjected to filtering before decoded video images are rendered on a display.
摘要翻译：在一个示例实施例中提供了一种方法，并且包括接收相机动态参数; 基于相机动态参数确定参考变换参数; 应用参考变换参数来生成视频图像; 以及在比特流中对参考变换参数进行编码以与视频图像一起传输。在其他更具体的实例中，该方法可以包括对特定视频图像进行解码; 解码特定参考变换参数; 以及将特定参考变换参数应用于特定视频图像。熵解码数据可以进行逆量化和变换，使得参考变换数据与熵解码数据组合。此外，在解码的视频图像被呈现在显示器上之前，可以对熵解码的数据进行滤波。

28. 发明授权

US08144784B2 Position coding for context-based adaptive variable length coding 有权
标题翻译：基于上下文的自适应可变长度编码的位置编码
公开(公告)号：US08144784B2
公开(公告)日：2012-03-27
申请号：US11774745
申请日：2007-07-09
申请人： Dihong Tian , Wen-hsiung Chen , Pi Sheng Chang
发明人： Dihong Tian , Wen-hsiung Chen , Pi Sheng Chang
IPC分类号： H04N7/26 , H04N11/02 , G06K9/46
CPC分类号： H04N19/13
摘要： Particular embodiments include a method, an apparatus, and logic embodied in tangible computer-readable medium that when executed carries out a method of encoding an ordered sequence of quantized transform coefficients of a block of image data. One embodiment is a context adaptive variable length coding method that includes position coding the positions of zero-valued and non-zero valued coefficients by either a mixed method that encodes either the run length of zeroes preceding a non-zero coefficient or the run length of nonzero-valued coefficients preceding a zero-valued coefficients. Another includes position coding that uses a variable length code for two parameters respectively indicating the number of zero-valued coefficient positions and nonzero-valued coefficient positions still to be coded.
摘要翻译：具体实施例包括体现在有形计算机可读介质中的方法，装置和逻辑，其在执行时执行编码图像数据块的量化变换系数的有序序列的方法。一个实施例是上下文自适应可变长度编码方法，其包括通过混合方法对零值和非零值系数的位置进行编码，该混合方法编码非零系数之前的零的游程长度或零值系数之前的非零值系数。另一种包括位置编码，其使用分别指示零值系数位置的数量和尚未编码的非零值系数位置的两个参数的可变长度代码。

29. 发明申请

US20090154820A1 CONTEXT ADAPTIVE HYBRID VARIABLE LENGTH CODING 有权
标题翻译：上下文自适应混合长度编码
公开(公告)号：US20090154820A1
公开(公告)日：2009-06-18
申请号：US12336364
申请日：2008-12-16
申请人： Junlin Li , Ghassan AlRegib , Dihong Tian , Wen-hsiung Chen
发明人： Junlin Li , Ghassan AlRegib , Dihong Tian , Wen-hsiung Chen
IPC分类号： G06K9/36
CPC分类号： H04N19/91
摘要： A coding method for an ordered series of quantized transform coefficients of a block of image data, including a context adaptive position coding process to encode the position of clusters of non-zero-valued coefficients, e.g., a multidimensional position coder that uses one of a plurality of code mappings selected according to at least one criterion including at least one context-based criterion, and an amplitude encoding process to encode any amplitudes remaining to be coded, the amplitude coding using one or a plurality of amplitude code mappings selected according to at least one criterion, including a context-based criterion. A context-based selection criterion is meant a criterion that during encoding is known or derivable from one or more previously encoded items of information. Also a coding apparatus, a decoding apparatus, a computer readable medium configured with instructions that when executed implement a coding method, and another medium for a decoding method.
摘要翻译：一种用于图像数据块的有序序列量化变换系数的编码方法，包括用于对非零值系数的簇的位置进行编码的上下文自适应位置编码处理，例如，多维位置编码器，其使用根据包括至少一个基于上下文的标准的至少一个标准选择的多个代码映射，以及编码剩余的要被编码的任何幅度的幅度编码处理，使用根据以下所选择的一个或多个幅度码映射的幅度编码至少一个标准，包括基于上下文的标准。基于上下文的选择标准是指在编码期间已知或可从一个或多个先前编码的信息项导出的标准。还有一种编码装置，解码装置，配置有执行执行编码方法的指令的计算机可读介质和用于解码方法的另一种介质。

30. 发明申请

US20090087113A1 VARIABLE LENGTH CODING OF COEFFICIENT CLUSTERS FOR IMAGE AND VIDEO COMPRESSION 有权
标题翻译：用于图像和视频压缩的系数组合的可变长度编码
公开(公告)号：US20090087113A1
公开(公告)日：2009-04-02
申请号：US12030821
申请日：2008-02-13
申请人： Junlin Li , Ghassan AlRegib , Wen-hsiung Chen , Dihong Tian , Pi Sheng Chang
发明人： Junlin Li , Ghassan AlRegib , Wen-hsiung Chen , Dihong Tian , Pi Sheng Chang
IPC分类号： G06K9/36
CPC分类号： H04N19/649 , H04N19/136 , H04N19/18 , H04N19/61 , H04N19/62 , H04N19/91
摘要： A coding method, apparatus, and medium with software encoded thereon to implement a coding method. The coding method includes encoding cluster of consecutive non-zero-valued coefficients, the encoding of a cluster including jointly encoding joint events that each are defined by at least two parameters: the number of zero-valued coefficients preceding the cluster, and the number of non-zero-valued coefficients in the cluster. The encoding of the cluster also includes encoding a parameter indicative of the number of amplitude-1 trailing non-zero-valued coefficients in the cluster, in one version with the parameter indicative of the number of trailing amplitude-1 coefficients part of the joint events such that the coding is according to a 3-dimensional joint variable length coding table. The method further includes encoding the amplitudes of the non-zero-valued coefficients that are not encoded by the joint encoding, e.g., encoding the amplitudes of the other than the trailing amplitude-1 coefficients.
摘要翻译：一种编码方法，装置和介质，其上编码有软件以实现编码方法。编码方法包括对连续的非零值系数的簇进行编码，包括共同编码的联合事件的簇的编码，每个共同事件由至少两个参数定义：簇之前的零值系数的数量和集群中的非零值系数。簇的编码还包括在一个版本中编码指示簇中的幅度-1尾随非零值系数的参数，其中参数指示联合事件的一部分的后向幅度-1系数的数量使得编码根据3维关节可变长度编码表。该方法还包括编码非联合编码的非零值系数的幅度，例如编码除了后沿幅度-1系数之外的幅度。

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