专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08270498B2 Dynamic dithering for video compression 有权
标题翻译：用于视频压缩的动态抖动
公开(公告)号：US08270498B2
公开(公告)日：2012-09-18
申请号：US12463859
申请日：2009-05-11
申请人： Gianluca Filippini , Hsi-Jung Wu , James Oliver Normile , Xiaojin Shi , Xiaosong Zhou , Ionut Hristodorescu
发明人： Gianluca Filippini , Hsi-Jung Wu , James Oliver Normile , Xiaojin Shi , Xiaosong Zhou , Ionut Hristodorescu
IPC分类号： H04N7/12 , G06K9/40
CPC分类号： H04N19/90 , H04N19/124 , H04N19/136 , H04N19/154 , H04N19/86
摘要： A method and device for dithering video from a decoder. The method and device provide: selecting a segment of video frames from the video; computing a noise map for the segment of the video, the noise map computed from differences among pixels selected from spatially-distributed sampling patterns in the segment; determining contours of quantization artifacts within the video frame based on the noise map and a histogram of pixel values in the video frame; computing a gradient measurement of pixel values along the contours; identifying regions along the contours of quantization artifacts to apply dithering based on the noise map and the gradient measurement; determining a dithering strength based on the noise map and the gradient measurement; and applying dithering noise to the identified regions at the determined dithering strength.
摘要翻译：一种从解码器抖动视频的方法和装置。该方法和设备提供：从视频中选择一段视频帧; 计算视频段的噪声映射，根据从片段中的空间分布采样模式中选择的像素之间的差异计算的噪声图; 基于噪声图和视频帧中的像素值的直方图确定视频帧内的量化伪像的轮廓; 计算沿着轮廓的像素值的梯度测量; 识别沿着量化伪影轮廓的区域，以基于噪声图和梯度测量应用抖动; 基于噪声图和梯度测量确定抖动强度; 并以确定的抖动强度对所识别的区域施加抖动噪声。

2. 发明授权

US08855213B2 Restore filter for restoring preprocessed video image 有权
标题翻译：恢复预处理视频图像的过滤器
公开(公告)号：US08855213B2
公开(公告)日：2014-10-07
申请号：US12463913
申请日：2009-05-11
申请人： Gianluca Filippini , Xiaosong Zhou , Hsi-Jung Wu , James Oliver Normile , Xiaojin Shi , Ionut Hristodorescu
发明人： Gianluca Filippini , Xiaosong Zhou , Hsi-Jung Wu , James Oliver Normile , Xiaojin Shi , Ionut Hristodorescu
IPC分类号： H04N7/12 , H04N11/02 , H04N5/14 , G06K9/36 , H04N19/122 , H04N19/91 , H04N19/176 , H04N19/154 , H04N19/124 , H04N19/103 , H04N19/61
CPC分类号： H04N19/00084 , H04N19/103 , H04N19/122 , H04N19/124 , H04N19/154 , H04N19/176 , H04N19/61 , H04N19/91
摘要： Embodiments of the present invention provides a method and device for processing a source video. The method and device may provide computing an artifact estimation from differences among pixels selected from spatially-distributed sampling patterns in the source video; filtering the source video to produce a filtered version of the source video, computing a blending factor based on the artifact estimation in the source video, and computing an output video by blending the source video and the filtered version of the source video based on the blending factor.
摘要翻译：本发明的实施例提供了一种用于处理源视频的方法和设备。该方法和装置可以提供从源视频中从空间分布的采样模式中选择的像素之间的差异来计算伪像估计; 过滤源视频以产生源视频的过滤版本，基于源视频中的伪像估计来计算混合因子，以及基于混合来混合源视频和源视频的过滤版本来计算输出视频因子。

3. 发明授权

US08743178B2 Multi-view video format control 有权
标题翻译：多视图视频格式控制
公开(公告)号：US08743178B2
公开(公告)日：2014-06-03
申请号：US12984593
申请日：2011-01-04
申请人： Gianluca Filippini , Reinhard Steffens , James Dougherty , Thomas Zato
发明人： Gianluca Filippini , Reinhard Steffens , James Dougherty , Thomas Zato
IPC分类号： H04N13/00
CPC分类号： H04N13/139 , H04N11/02 , H04N13/00 , H04N13/161 , H04N13/172 , H04N13/189 , H04N13/194
摘要： Techniques for multi-view video format control are provided. In some embodiments, a display video format supported by a display panel is determined. A video format code is extracted from a coded bitstream in which a plurality of images is encoded in two or more source video formats. The video format code identifies a source video format in which a set of images in the plurality of images is encoded. A video format filter is selected to modify the set of images encoded in the source video format to generate another set of images encoded in the display video format. The other set of images encoded in the display video format is sent to the display panel.
摘要翻译：提供了多视图视频格式控制技术。在一些实施例中，确定由显示面板支持的显示视频格式。从编码比特流中提取视频格式代码，其中多个图像以两个或更多个源视频格式被编码。视频格式代码识别其中对多个图像中的一组图像进行编码的源视频格式。选择视频格式滤波器来修改以源视频格式编码的图像集，以生成以显示视频格式编码的另一组图像。以显示视频格式编码的另一组图像被发送到显示面板。

4. 发明申请

US20060039473A1 Method for transcoding compressed video signals, related apparatus and computer program product therefor 有权
标题翻译：用于对压缩视频信号进行转码的方法，相关装置及其计算机程序产品
公开(公告)号：US20060039473A1
公开(公告)日：2006-02-23
申请号：US11206644
申请日：2005-08-17
申请人： Gianluca Filippini , Emiliano Piccinelli , Fabrizio Rovati
发明人： Gianluca Filippini , Emiliano Piccinelli , Fabrizio Rovati
IPC分类号： H04N11/02 , H04N11/04 , H04N7/12 , H04B1/66
CPC分类号： H04N19/40 , H04N19/103 , H04N19/139 , H04N19/157 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/46 , H04N19/56
摘要： Transcoder apparatus for transcoding an input video bit-stream having a first encoding profile (e.g., MPEG-2) into an output video bit-stream having a second encoding profile (e.g., H.264), the first encoding profile including motion estimation information, the apparatus including: a front-end for extracting the motion estimation information from the input video bit-stream, and a back-end for constructing the output bit-stream. The front-end and the back-end of the apparatus are interconnected (e.g., via a buffer) to pass the motion estimation information from the front-end to the back-end, thereby avoiding motion estimation in constructing the output bit-stream at the apparatus back-end.
摘要翻译：用于将具有第一编码简档（例如，MPEG-2）的输入视频比特流进行代码转换为具有第二编码简档（例如，H.264）的输出视频比特流的转码器装置，所述第一编码简档包括运动估计信息该装置包括：用于从输入视频比特流中提取运动估计信息的前端，以及用于构造输出比特流的后端。装置的前端和后端互连（例如，经由缓冲器），以将运动估计信息从前端传递到后端，从而避免在构造输出比特流时的运动估计设备后端。

5. 发明申请

US20060018378A1 Method and system for delivery of coded information streams, related network and computer program product therefor 审中-公开
标题翻译：用于传送编码信息流的方法和系统，相关网络和计算机程序产品
公开(公告)号：US20060018378A1
公开(公告)日：2006-01-26
申请号：US11179012
申请日：2005-07-11
申请人： Emiliano Piccinelli , Gianluca Filippini , Fabrizio Rovati
发明人： Emiliano Piccinelli , Gianluca Filippini , Fabrizio Rovati
IPC分类号： H04N11/04 , H04B1/66 , H04N11/02 , H04N7/12
CPC分类号： H04N19/59 , H04N19/124 , H04N19/132 , H04N19/137 , H04N19/15 , H04N19/152 , H04N19/164 , H04N19/172 , H04N19/40 , H04N19/61
摘要： A method controls operation of a network wherein at least one coded information stream is delivered to at least one user via at least one link exposed to variable operating conditions. The method includes the steps of: monitoring the operating conditions of the at least one link, and selectively transcoding the at least one coded information stream by selectively varying at least one transcoding parameter as a function of the operating conditions monitored. The monitoring operating conditions of the at least one link includes evaluating a set of cost functions related to an available bit rate and to complexity of said coded information stream and the selective variation of at least one transcoding parameter includes selecting among a plurality of transcoding levels associated to different values of quantization, resolution and frame rate.
摘要翻译：一种方法控制网络的操作，其中至少一个已编码的信息流通过暴露于可变操作条件的至少一个链路传递给至少一个用户。该方法包括以下步骤：监视所述至少一个链路的操作条件，以及通过根据所监视的操作条件选择性地改变至少一个转码参数来选择性地对所述至少一个编码信息流进行代码转换。所述至少一个链路的监视操作条件包括评估与可用比特率相关的一组成本函数以及所述编码信息流的复杂度，并且至少一个转码参数的选择性变化包括在相关联的多个转码水平之间进行选择到量化，分辨率和帧速率的不同值。

6. 发明申请

US20120236939A1 Sub-band video coding architecture for packet based transmission 有权
标题翻译：用于基于分组的传输的子带视频编码架构
公开(公告)号：US20120236939A1
公开(公告)日：2012-09-20
申请号：US13420703
申请日：2012-03-15
申请人： Gianluca Filippini , James F. Dougherty, III , William S. Bunch
发明人： Gianluca Filippini , James F. Dougherty, III , William S. Bunch
IPC分类号： H04N7/26 , H04N7/34
CPC分类号： H04N19/59 , H04N19/30 , H04N19/61 , H04N19/63 , H04N19/70
摘要： Sub-band video coding architecture for packet based transmission. Video processing includes converting of a frame or picture of a video signal into a number of respective sub-bands or sub-frames (e.g., such that each respective one is a respective subsampled version of an original frame or picture) and subsequent assembly thereof into a reconstructed frame or picture. The reconstructed frame or picture then undergoes video encoding to generate an output bitstream that may subsequently undergo appropriate processing (e.g., packetization, continuous time signal generation, etc.) to generate a signal for transmission via one or more communication the links. Characteristics associated with each respective sub-band or sub-frame may be similar (e.g., similar characteristics) or different (e.g., two or more sub-bands or sub-frames have different characteristics, such as different respective number of pixels, aspect ratios, etc.). Respective sub-frames may undergo video encoding and transmission.
摘要翻译：用于基于分组的传输的子带视频编码架构。视频处理包括将视频信号的帧或图像转换成多个相应子带或子帧（例如，使得每个相应的一个是原始帧或图像的相应子采样版本），并将其后续组合成重建帧或图片。然后，经重构的帧或图像经历视频编码以产生可以随后经历适当处理（例如，分组化，连续时间信号生成等）的输出比特流，以生成用于经由一个或多个通信链路传输的信号。与每个相应的子带或子帧相关联的特征可以是相似的（例如，类似的特征）或不同的（例如，两个或多个子带或子帧具有不同的特征，诸如不同的相应数量的像素，宽高比等）。各个子帧可以进行视频编码和传输。

7. 发明授权

US09071848B2 Sub-band video coding architecture for packet based transmission 有权
标题翻译：用于基于分组的传输的子带视频编码架构
公开(公告)号：US09071848B2
公开(公告)日：2015-06-30
申请号：US13420703
申请日：2012-03-15
申请人： Gianluca Filippini , James F. Dougherty, III , William S. Bunch
发明人： Gianluca Filippini , James F. Dougherty, III , William S. Bunch
IPC分类号： H04N7/12 , H04N19/59 , H04N19/70 , H04N19/30 , H04N19/63 , H04N19/61
CPC分类号： H04N19/59 , H04N19/30 , H04N19/61 , H04N19/63 , H04N19/70
摘要： Sub-band video coding architecture for packet based transmission. Video processing includes converting of a frame or picture of a video signal into a number of respective sub-bands or sub-frames (e.g., such that each respective one is a respective subsampled version of an original frame or picture) and subsequent assembly thereof into a reconstructed frame or picture. The reconstructed frame or picture then undergoes video encoding to generate an output bitstream that may subsequently undergo appropriate processing (e.g., packetization, continuous time signal generation, etc.) to generate a signal for transmission via one or more communication the links. Characteristics associated with each respective sub-band or sub-frame may be similar (e.g., similar characteristics) or different (e.g., two or more sub-bands or sub-frames have different characteristics, such as different respective number of pixels, aspect ratios, etc.). Respective sub-frames may undergo video encoding and transmission.
摘要翻译：用于基于分组的传输的子带视频编码架构。视频处理包括将视频信号的帧或图像转换成多个相应子带或子帧（例如，使得每个相应的一个是原始帧或图像的相应子采样版本），并将其后续组合成重建帧或图片。然后，经重构的帧或图像经历视频编码以产生可以随后经历适当处理（例如，分组化，连续时间信号生成等）的输出比特流，以生成用于经由一个或多个通信链路传输的信号。与每个相应的子带或子帧相关联的特征可以是相似的（例如，类似的特征）或不同的（例如，两个或多个子带或子帧具有不同的特征，诸如不同的相应数量的像素，宽高比等）。各个子帧可以进行视频编码和传输。

8. 发明授权

US08054883B2 Method for transcoding compressed video signals, related apparatus and computer program product therefor 有权
标题翻译：用于对压缩视频信号进行转码的方法，相关装置及其计算机程序产品
公开(公告)号：US08054883B2
公开(公告)日：2011-11-08
申请号：US11206644
申请日：2005-08-17
申请人： Gianluca Filippini , Emiliano Mario Angelo Piccinelli , Fabrizio Simone Rovati
发明人： Gianluca Filippini , Emiliano Mario Angelo Piccinelli , Fabrizio Simone Rovati
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04B1/66
CPC分类号： H04N19/40 , H04N19/103 , H04N19/139 , H04N19/157 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/46 , H04N19/56
摘要： Transcoder apparatus for transcoding an input video bit-stream having a first encoding profile (e.g., MPEG-2) into an output video bit-stream having a second encoding profile (e.g., H.264), the first encoding profile including motion estimation information, the apparatus including: a front-end for extracting the motion estimation information from the input video bit-stream, and a back-end for constructing the output bit-stream. The front-end and the back-end of the apparatus are interconnected (e.g., via a buffer) to pass the motion estimation information from the front-end to the back-end, thereby avoiding motion estimation in constructing the output bit-stream at the apparatus back-end.
摘要翻译：用于将具有第一编码简档（例如，MPEG-2）的输入视频比特流进行代码转换为具有第二编码简档（例如，H.264）的输出视频比特流的转码器装置，所述第一编码简档包括运动估计信息该装置包括：用于从输入视频比特流中提取运动估计信息的前端，以及用于构造输出比特流的后端。装置的前端和后端互连（例如，经由缓冲器），以将运动估计信息从前端传递到后端，从而避免在构造输出比特流时的运动估计设备后端。

9. 发明申请

US20110216162A1 Multi-View Video Format Control 有权
标题翻译：多视图视频格式控制
公开(公告)号：US20110216162A1
公开(公告)日：2011-09-08
申请号：US12984593
申请日：2011-01-04
申请人： Gianluca Filippini , Reinhard Steffens , James Dougherty , Thomas Zato
发明人： Gianluca Filippini , Reinhard Steffens , James Dougherty , Thomas Zato
IPC分类号： H04N13/00 , H04N11/02
CPC分类号： H04N13/139 , H04N11/02 , H04N13/00 , H04N13/161 , H04N13/172 , H04N13/189 , H04N13/194
摘要： Techniques for multi-view video format control are provided. In some embodiments, a display video format supported by a display panel is determined. A video format code is extracted from a coded bitstream in which a plurality of images is encoded in two or more source video formats. The video format code identifies a source video format in which a set of images in the plurality of images is encoded. A video format filter is selected to modify the set of images encoded in the source video format to generate another set of images encoded in the display video format. The other set of images encoded in the display video format is sent to the display panel.
摘要翻译：提供了多视图视频格式控制技术。在一些实施例中，确定由显示面板支持的显示视频格式。从编码比特流中提取视频格式代码，其中多个图像以两个或更多个源视频格式被编码。视频格式代码识别其中对多个图像中的一组图像进行编码的源视频格式。选择视频格式滤波器来修改以源视频格式编码的图像集，以生成以显示视频格式编码的另一组图像。以显示视频格式编码的另一组图像被发送到显示面板。

10. 发明申请

US20060291567A1 Method and system for coding moving image signals, corresponding computer program product 有权
标题翻译：用于编码运动图像信号的方法和系统，相应的计算机程序产品
公开(公告)号：US20060291567A1
公开(公告)日：2006-12-28
申请号：US11448586
申请日：2006-06-06
申请人： Gianluca Filippini , Bruno Biffi , Fabrizio Rovati , Emiliano Piccinelli
发明人： Gianluca Filippini , Bruno Biffi , Fabrizio Rovati , Emiliano Piccinelli
IPC分类号： H04N11/04 , H04N7/12 , H04B1/66 , H04N11/02
CPC分类号： H04N19/61 , H04N19/51
摘要： A moving-image signal, such as typically a luminance signal organized in blocks of pixels is coded via a technique that envisages the steps of: comparing a block to be coded with a plurality of candidate prediction blocks; determining, for each candidate prediction block, a respective value of an index representing the difference between the block to be coded and each candidate prediction block; and choosing between the candidate prediction blocks, as a function of the respective value of the aforesaid index, a prediction block to be used for coding of the block to be coded. The signal is sampled pixel by pixel on the block to be coded and on the plurality of candidate prediction blocks, thus generating respective surfaces representing the pattern of the signal in the block to be coded and in the candidate prediction blocks. Chosen as an index is an index of the parallelism between the aforesaid respective surfaces.
摘要翻译：运动图像信号，例如典型地以像素块形式组织的亮度信号，通过设想以下步骤的技术进行编码：将待编码的块与多个候选预测块进行比较; 对于每个候选预测块，确定表示要编码的块与每个候选预测块之间的差的索引的相应值; 以及根据上述索引的相应值，在候选预测块之间选择要用于编码要编码的块的预测块。信号在要编码的块上逐像素地被采样，并且在多个候选预测块上进行采样，从而生成表示要编码的块中的信号的模式的表面和候选预测块中的各个表面。作为指标的选择是上述各个表面之间的平行度的指标。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式