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公开(公告)号：US08396256B2
公开(公告)日：2013-03-12
申请号：US12731579
申请日：2010-03-25
CPC分类号： G06T17/05 , G06T1/20 , G06T2200/28 , G06T2210/52
摘要： Techniques are disclosed for parallel computing of a line of sight (LoS) map (e.g., view-shed) in a parallel computing system. For example, a method for computing an LoS map comprises the following steps. Data representing at least one image is obtained. An observation point in the at least one image is identified. A portion of the data that is associated with a given area in the image is partitioned into a plurality of sub-areas. The plurality of sub-areas are assigned to a plurality of processor elements of a parallel computing system, respectively, such that the data associated with each one of the plurality of sub-areas is processed independent from the data associated with each other of the plurality of sub-areas, wherein results of the processing by the processor elements represents the LoS map. The parallel computing system may be a multicore processor.
摘要翻译： 公开了用于并行计算并行计算系统中的视线（LoS）映射（例如，视图）的技术。 例如，用于计算LoS映射的方法包括以下步骤。 获得表示至少一个图像的数据。 识别至少一个图像中的观察点。 与图像中的给定区域相关联的数据的一部分被划分为多个子区域。 多个子区域分别被分配给并行计算系统的多个处理器元件，使得与多个子区域中的每一个子区域相关联的数据被独立于与多个子区段中的彼此相关联的数据进行处理 的子区域，其中由处理器元件处理的结果表示LoS映射。 并行计算系统可以是多核处理器。
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2.发明申请METHOD AND SYSTEM FOR INTEGRATING NOISE FILTERING IN PREDICTIVE VIDEO CODING 审中-公开用于在预测视频编码中集成噪声滤波的方法和系统公开(公告)号：US20090268818A1
公开(公告)日：2009-10-29
申请号：US12111677
申请日：2008-04-29
申请人： Ligang Lu , Vadim Sheinin
发明人： Ligang Lu , Vadim Sheinin
CPC分类号： H04N19/85 , H04N19/117 , H04N19/137 , H04N19/61 , H04N19/82
摘要： A method and system are disclosed for coding and filtering video data. The method comprises the steps of using a predictive coding technique to compress a stream of video data, integrating a noise filtering process into said predictive coding technique, and using said noise filtering process to noise filter said stream of video data while compressing said stream of video data. In the preferred embodiment of the invention, the stream of video data is comprised of a series of macroblocks, including a current macroblock and at least one reference macroblock. Also, in this preferred embodiment, the step of using a predictive coding technique includes the step of calculating the difference between the current macroblock and the at least one reference macroblock, and the step of integrating the noise filtering process includes the step of integrating the noise filtering process into said step of calculating. The invention may be used with a forward predictive code mode and with a bi-directional predictive mode.
摘要翻译： 公开了用于编码和过滤视频数据的方法和系统。 该方法包括以下步骤：使用预测编码技术来压缩视频数据流，将噪声滤波处理整合到所述预测编码技术中，以及使用所述噪声滤波处理对所述视频数据流进行噪声滤波，同时压缩所述视频流 数据。 在本发明的优选实施例中，视频数据流由包括当前宏块和至少一个参考宏块的一系列宏块构成。 此外，在本实施方式中，使用预测编码技术的步骤包括计算当前宏块与至少一个参考宏块之间的差的步骤，并且对噪声滤波处理进行积分的步骤包括对噪声进行积分的步骤 过滤进入所述计算步骤。 本发明可以与前向预测码模式和双向预测模式一起使用。
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公开(公告)号：US20070160144A1
公开(公告)日：2007-07-12
申请号：US11327072
申请日：2006-01-06
申请人： Ligang Lu , Vadim Sheinin
发明人： Ligang Lu , Vadim Sheinin
CPC分类号： H04N19/521 , H04N19/40 , H04N19/51 , H04N19/513 , H04N19/553 , H04N19/56 , H04N19/577 , H04N19/895
摘要： The present invention relates to computer-based systems and methods for visual signal extrapolation or interpolation based on statistic similarity estimation. Specifically, a first and a second reference pictures are provided, and motion estimation is conducted on the first and second reference pictures to generate motion vectors indicative of movement of at least one of the first and second reference pictures in relation to the other. Subsequently, an estimate picture is generated by extrapolation or interpolation from the first and/or the second reference picture using the motion vectors, followed by optional refinement of the estimate picture. Statistic similarity estimation is used either in motion estimation or in refining the estimate picture, or a combination of both, so as to provide improved visual signals.
摘要翻译： 本发明涉及基于计算机的系统和方法，用于基于统计相似度估计的视觉信号外插或插值。 具体地，提供第一和第二参考图片，并且对第一和第二参考图片进行运动估计，以产生指示第一和第二参考图片中的至少一个相对于另一参考图片的移动的运动矢量。 随后，使用运动矢量从第一参考图像和/或第二参考图像进行外推或内插生成估计图像，随后可选地细化估计图像。 统计学相似度估计用于运动估计或精简估计图像，或两者的组合，以便提供改进的视觉信号。
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公开(公告)号：US20110164682A1
公开(公告)日：2011-07-07
申请号：US13046264
申请日：2011-03-11
申请人： Ligang Lu , Vadim Sheinin
发明人： Ligang Lu , Vadim Sheinin
IPC分类号： H04N7/12
CPC分类号： H04N19/521 , H04N19/40 , H04N19/51 , H04N19/513 , H04N19/553 , H04N19/56 , H04N19/577 , H04N19/895
摘要： The present invention relates to computer-based systems and methods for visual signal extrapolation or interpolation based on statistic similarity estimation. Specifically, a first and a second reference pictures are provided, and motion estimation is conducted on the first and second reference pictures to generate motion vectors indicative of movement of at least one of the first and second reference pictures in relation to the other. Subsequently, an estimate picture is generated by extrapolation or interpolation from the first and/or the second reference picture using the motion vectors, followed by optional refinement of the estimate picture. Statistic similarity estimation is used either in motion estimation or in refining the estimate picture, or a combination of both, so as to provide improved visual signals.
摘要翻译： 本发明涉及基于计算机的系统和方法，用于基于统计相似度估计的视觉信号外插或插值。 具体地，提供第一和第二参考图片，并且对第一和第二参考图片进行运动估计，以产生指示第一和第二参考图片中的至少一个相对于另一参考图片的移动的运动矢量。 随后，使用运动矢量从第一参考图像和/或第二参考图像进行外推或内插生成估计图像，随后可选地细化估计图像。 统计学相似度估计用于运动估计或精简估计图像，或两者的组合，以便提供改进的视觉信号。
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公开(公告)号：US07715479B2
公开(公告)日：2010-05-11
申请号：US10624428
申请日：2003-07-21
申请人： Ligang Lu , Krishna C Ratakonda , Vadim Sheinin
发明人： Ligang Lu , Krishna C Ratakonda , Vadim Sheinin
CPC分类号： H04N19/433 , H04N19/423 , H04N19/44
摘要： A decoding power aware encoding method for generating a predictively encoded data stream, in which predictions, that result in a reduction in the amount of data transferred from the secondary memory to primary memory during the decoding process, are favored, said method for favoring certain predictions comprising: a model for transfer of data from secondary memory to primary memory in the decoding process; a scheme for weighting the relative merits of favoring a certain prediction and the associated loss in compression gain; and based on said weighting scheme, choosing a particular prediction from the candidates allowed by the compression scheme.
摘要翻译： 一种用于产生预测编码的数据流的解码功率感知编码方法，其中有助于某些预测的方法，其中导致减少从辅助存储器传送到主存储器的数据的预测 包括：用于在解码过程中将数据从次要存储器传送到主存储器的模型; 用于加权有利于某种预测的相对优点和相关联的压缩增益损失的方案; 并且基于所述加权方案，从由压缩方案允许的候选中选择特定预测。
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公开(公告)号：US07408984B2
公开(公告)日：2008-08-05
申请号：US10665228
申请日：2003-09-17
申请人： Ligang Lu , Vadim Sheinin
发明人： Ligang Lu , Vadim Sheinin
CPC分类号： H04N19/194 , H04N19/102 , H04N19/15 , H04N19/61
摘要： A real-time MPEG video coding system with information look-ahead for constant bit rate (CBR) applications, such as, for example, Video-on-Demand (VoD) over ADSL. This scheme employs two MPEG encoders. The second encoder has a buffer to delay the input by an amount of time relative to the first encoder to create a look-ahead window. In encoding, the first encoder collects the information of statistics and rate-quality characteristics. An on-line information processor then uses the collected information to derive the best coding strategy for the second encoder to encode the incoming frames in the look-ahead window. The second encoder uses the encoding parameters from the processor as the coding guide to execute the coding strategy and generate the final bitstream.
摘要翻译： 一种实时MPEG视频编码系统，其具有针对恒定比特率（CBR）应用的信息，例如通过ADSL的视频点播（VoD）。 该方案采用两个MPEG编码器。 第二编码器具有缓冲器，用于将输入延迟相对于第一编码器的时间量以创建预览窗口。 在编码中，第一编码器收集统计信息和速率质量特征。 然后，在线信息处理器使用所收集的信息来导出用于第二编码器的最佳编码策略，以对前进窗口中的输入帧进行编码。 第二编码器使用来自处理器的编码参数作为编码指南来执行编码策略并生成最终比特流。
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公开(公告)号：US20050058200A1
公开(公告)日：2005-03-17
申请号：US10665228
申请日：2003-09-17
申请人： Ligang Lu , Vadim Sheinin
发明人： Ligang Lu , Vadim Sheinin
CPC分类号： H04N19/194 , H04N19/102 , H04N19/15 , H04N19/61
摘要： A real-time MPEG video coding system with information look-ahead for constant bit rate (CBR) applications, such as, for example, Video-on-Demand (VoD) over ADSL. This scheme employs two MPEG encoders. The second encoder has a buffer to delay the input by an amount of time relative to the first encoder to create a look-ahead window. In encoding, the first encoder collects the information of statistics and rate-quality characteristics. An on-line information processor then uses the collected information to derive the best coding strategy for the second encoder to encode the incoming frames in the look-ahead window. The second encoder uses the encoding parameters from the processor as the coding guide to execute the coding strategy and generate the final bitstream.
摘要翻译： 一种实时MPEG视频编码系统，其具有针对恒定比特率（CBR）应用的信息，例如通过ADSL的视频点播（VoD）。 该方案采用两个MPEG编码器。 第二编码器具有缓冲器，用于将输入延迟相对于第一编码器的时间量以创建预览窗口。 在编码中，第一编码器收集统计信息和速率质量特征。 然后，在线信息处理器使用所收集的信息来导出用于第二编码器的最佳编码策略，以对前进窗口中的输入帧进行编码。 第二编码器使用来自处理器的编码参数作为编码指南来执行编码策略并生成最终比特流。
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公开(公告)号：US20050018909A1
公开(公告)日：2005-01-27
申请号：US10624428
申请日：2003-07-21
申请人： Ligang Lu , Krishna Ratakonda , Vadim Sheinin
发明人： Ligang Lu , Krishna Ratakonda , Vadim Sheinin
CPC分类号： H04N19/433 , H04N19/423 , H04N19/44
摘要： A decoding power aware encoding method for generating a predictively encoded data stream, in which predictions, that result in a reduction in the amount of data transferred from the secondary memory to primary memory during the decoding process, are favored, said method for favoring certain predictions comprising: a model for transfer of data from secondary memory to primary memory in the decoding process; a scheme for weighting the relative merits of favoring a certain prediction and the associated loss in compression gain; and based on said weighting scheme, choosing a particular prediction from the candidates allowed by the compression scheme.
摘要翻译： 一种用于产生预测编码的数据流的解码功率感知编码方法，其中有助于某些预测的方法，其中导致减少从辅助存储器传送到主存储器的数据的预测 包括：用于在解码过程中将数据从次要存储器传送到主存储器的模型; 用于加权有利于某种预测的相对优点和相关联的压缩增益损失的方案; 并且基于所述加权方案，从由压缩方案允许的候选中选择特定预测。
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公开(公告)号：US20110235869A1
公开(公告)日：2011-09-29
申请号：US12731579
申请日：2010-03-25
IPC分类号： G06K9/00
CPC分类号： G06T17/05 , G06T1/20 , G06T2200/28 , G06T2210/52
摘要： Techniques are disclosed for parallel computing of a line of sight (LoS) map (e.g., view-shed) in a parallel computing system. For example, a method for computing an LoS map comprises the following steps. Data representing at least one image is obtained. An observation point in the at least one image is identified. A portion of the data that is associated with a given area in the image is partitioned into a plurality of sub-areas. The plurality of sub-areas are assigned to a plurality of processor elements of a parallel computing system, respectively, such that the data associated with each one of the plurality of sub-areas is processed independent from the data associated with each other of the plurality of sub-areas, wherein results of the processing by the processor elements represents the LoS map. The parallel computing system may be a multicore processor.
摘要翻译： 公开了用于并行计算并行计算系统中的视线（LoS）映射（例如，视图）的技术。 例如，用于计算LoS映射的方法包括以下步骤。 获得表示至少一个图像的数据。 识别至少一个图像中的观察点。 与图像中的给定区域相关联的数据的一部分被划分为多个子区域。 多个子区域分别被分配给并行计算系统的多个处理器元件，使得与多个子区域中的每一个子区域相关联的数据被独立于与多个子区段中的彼此相关联的数据进行处理 的子区域，其中由处理器元件处理的结果表示LoS映射。 并行计算系统可以是多核处理器。
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公开(公告)号：US07844002B2
公开(公告)日：2010-11-30
申请号：US12131268
申请日：2008-06-02
申请人： Ligang Lu , Vadim Sheinin
发明人： Ligang Lu , Vadim Sheinin
CPC分类号： H04N19/194 , H04N19/102 , H04N19/15 , H04N19/61
摘要： A real-time MPEG video coding system with information look-ahead for constant bit rate (CBR) applications, such as, for example, Video-on-Demand (VoD) over ADSL. This scheme employs two MPEG encoders. The second encoder has a buffer to delay the input by an amount of time relative to the first encoder to create a look-ahead window. In encoding, the first encoder collects the information of statistics and rate-quality characteristics. An on-line information processor then uses the collected information to derive the best coding strategy for the second encoder to encode the incoming frames in the look-ahead window. The second encoder uses the encoding parameters from the processor as the coding guide to execute the coding strategy and generate the final bitstream.
摘要翻译： 一种实时MPEG视频编码系统，其具有针对恒定比特率（CBR）应用的信息，例如通过ADSL的视频点播（VoD）。 该方案采用两个MPEG编码器。 第二编码器具有缓冲器，用于将输入延迟相对于第一编码器的时间量以创建预览窗口。 在编码中，第一编码器收集统计信息和速率质量特征。 然后，在线信息处理器使用所收集的信息来导出用于第二编码器的最佳编码策略，以对前进窗口中的输入帧进行编码。 第二编码器使用来自处理器的编码参数作为编码指南来执行编码策略并生成最终比特流。
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