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1. 发明授权

US08819525B1 Error concealment guided robustness 有权
标题翻译：错误隐藏引导鲁棒性
公开(公告)号：US08819525B1
公开(公告)日：2014-08-26
申请号：US13523072
申请日：2012-06-14
申请人： Stefan Holmer
发明人： Stefan Holmer
IPC分类号： H03M13/00 , H03M13/03 , H03M13/33 , H04L1/00 , H03M13/45
CPC分类号： H03M13/33 , H03M13/35 , H03M13/45 , H04L1/0041 , H04L1/0045 , H04L1/007 , H04N19/67 , H04N19/895 , H04N21/23418 , H04N21/2383
摘要： Error concealment guided robustness may include identifying a current portion of a current video stream. Identifying the current portion may include identifying a feature, or a vector of features, for the current portion. An estimated vulnerability metric may be identified based on the feature and an associated learned feature weight. An error correction code for the current portion may be generated based on the estimated vulnerability metric. Error concealment guided robustness may include generating learned feature weights based on one or more training videos by generating vulnerability metrics for the training videos and identifying relationships between features of the training videos and the vulnerability metrics generated for the training videos.
摘要翻译：错误隐藏引导的鲁棒性可以包括识别当前视频流的当前部分。识别当前部分可以包括识别当前部分的特征或特征向量。可以基于特征和相关联的学习特征权重来识别估计的漏洞度量。可以基于估计的漏洞度量来生成当前部分的纠错码。错误隐藏引导的鲁棒性可以包括通过为训练视频生成漏洞指标并且识别训练视频的特征与针对训练视频产生的脆弱性度量之间的关系来生成基于一个或多个训练视频的学习特征权重。

2. 发明授权

US09106787B1 Apparatus and method for media transmission bandwidth control using bandwidth estimation 有权
标题翻译：使用带宽估计的媒体传输带宽控制的装置和方法
公开(公告)号：US09106787B1
公开(公告)日：2015-08-11
申请号：US13103181
申请日：2011-05-09
申请人： Stefan Holmer , Henrik Fahlberg Lundin
发明人： Stefan Holmer , Henrik Fahlberg Lundin
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04B1/66 , G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04L12/26 , H04N19/172 , H04N19/61 , H04N19/115 , H04N21/2662 , H04N19/70 , H04N19/80 , H04L12/801 , H04L12/807 , H04L12/853 , H04L12/861 , H04L1/00 , H04L29/06
CPC分类号： H04N7/12 , H04L1/005 , H04L43/087 , H04L43/0888 , H04L43/106 , H04L47/10 , H04L47/2416 , H04L47/25 , H04L47/27 , H04L47/28 , H04L49/90 , H04L69/16 , H04N19/115 , H04N19/172 , H04N19/61 , H04N19/70 , H04N19/80 , H04N21/2662
摘要： A system, apparatus, and method for estimating available bandwidth for transmitting a media stream over a network, the media stream having a plurality of frames. One method includes receiving some of the plurality of frames, each frame of the plurality of frames having a inter-frame size differential and an inter-arrival time differential, detecting whether at least some of the inter-arrival time differentials are outside of a steady-state range using at least some of the inter-frame size differentials, and estimating an available bandwidth based on the detected change and using a processor.
摘要翻译：一种用于估计可用带宽以用于通过网络发送媒体流的系统，装置和方法，所述媒体流具有多个帧。一种方法包括：接收多个帧中的一些帧，多个帧中的每一帧具有帧间尺寸差分和到达之间时间差，检测到达到达间时间差中的至少一些是否在稳定之外 - 使用至少一些帧间尺寸差异的状态范围，以及基于检测到的改变来估计可用带宽并使用处理器。

3. 发明授权

US08665745B2 Method and device for determining a jitter buffer level 有权
标题翻译：用于确定抖动缓冲器电平的方法和设备
公开(公告)号：US08665745B2
公开(公告)日：2014-03-04
申请号：US13497625
申请日：2010-09-20
申请人： Henrik Fahlberg Lundin , Stefan Holmer
发明人： Henrik Fahlberg Lundin , Stefan Holmer
IPC分类号： H04L12/26 , H04L12/28
CPC分类号： H04L43/087 , H04L43/0852 , H04L43/106 , H04L49/90 , H04L49/9005
摘要： It is disclosed a method for determining a buffer level of a jitter data buffer (203) comprised in a receiver (200) adapted to sequentially receive data packets from a communications network (202), wherein frames are encoded into the data packets. Each frame may comprise timestamp information and payload size information. The buffer level is determined on the basis of a first part of frame arrival delay related to payload size variation between frames and a second part related to the amount of crosstraffic in the communications network (202). It is further disclosed a receiver (200) adapted to sequentially receive data packets from a communications network (202), wherein frames are encoded into the data packets, the receiver (200) comprising a data jitter buffer (203) and being adapted to perform the method.
摘要翻译：公开了一种用于确定包括在接收器（200）中的抖动数据缓冲器（203）的缓冲器电平的方法，该接收机适于顺序地从通信网络（202）接收数据分组，其中帧被编码到数据分组中。每个帧可以包括时间戳信息和有效载荷大小信息。基于与帧之间的有效负载大小变化相关的帧到达延迟的第一部分和与通信网络（202）中的交叉量相关的第二部分，确定缓冲器电平。还公开了一种适于从通信网络（202）顺序地接收数据分组的接收机（200），其中帧被编码为数据分组，所述接收机（200）包括数据抖动缓冲器（203）并且适于执行方法。

4. 发明申请

US20120281562A1 APPARATUS AND METHOD FOR RENDERING VIDEO WITH RETRANSMISSION DELAY 有权
标题翻译：用于渲染视频延迟延迟的装置和方法
公开(公告)号：US20120281562A1
公开(公告)日：2012-11-08
申请号：US13144586
申请日：2011-05-06
申请人： Stefan Holmer
发明人： Stefan Holmer
IPC分类号： H04L1/00
CPC分类号： H04L29/06448 , H04L1/16 , H04L29/06455 , H04L29/06462 , H04N7/24 , H04N21/242 , H04N21/4302 , H04N21/44004 , H04N21/6375 , H04N21/64776
摘要： A system, apparatus, and method for rendering a video stream, the video stream having a plurality of frames. One method includes receiving the plurality of frames via a network, each frame having an estimated arrival time, determining a retransmission rendering delay, based on a round-trip delay and a round-trip delay constant, for a current frame of the plurality of frames using a processor, determining a render time for the current frame using a sum of the current frame's estimated arrival time and the retransmission rendering delay, and rendering the current frame at the render time.
摘要翻译：一种用于渲染视频流的系统，装置和方法，该视频流具有多个帧。一种方法包括经由网络接收多个帧，每帧具有估计的到达时间，基于往返延迟和往返延迟常数确定多个帧中的当前帧的重传呈现延迟使用处理器，使用当前帧的估计到达时间和重发渲染延迟的和确定当前帧的渲染时间，并在渲染时渲染当前帧。

5. 发明授权

US09210302B1 System, method and apparatus for multipoint video transmission 有权
标题翻译：用于多点视频传输的系统，方法和装置
公开(公告)号：US09210302B1
公开(公告)日：2015-12-08
申请号：US13206791
申请日：2011-08-10
申请人： Stefan Holmer , Henrik Fahlberg Lundin , Patrik Westin
发明人： Stefan Holmer , Henrik Fahlberg Lundin , Patrik Westin
IPC分类号： H04N7/50 , H04N5/14 , H04N19/10 , H04N19/102 , H04N19/103 , H04N19/30 , H04N19/37 , H04N19/63
CPC分类号： H04N5/147 , H04N19/10 , H04N19/102 , H04N19/103 , H04N19/115 , H04N19/12 , H04N19/124 , H04N19/146 , H04N19/154 , H04N19/187 , H04N19/30 , H04N19/37 , H04N19/63
摘要： Disclosed herein is a method of transmitting a video bitstream to a first and at least a second endpoint with varying bandwidth capacities including identifying bandwidth capacities of the first and second endpoints, the second endpoint having less bandwidth capacity than the first endpoint, encoding at least a portion of the video bitstream to generate at least one version of a first data partition and a plurality of versions of at least a second data partition, the plurality of versions of the second data partition including at least one high quality version and at least one low quality version of the second data partition, transmitting the at least one version of the first partition and the at least one high quality version of the second partition to the first endpoint and transmitting the at least one low quality version of the second partition to the second endpoint.
摘要翻译：本文公开了一种将视频比特流发送到具有变化带宽容量的第一和至少第二端点的方法，包括识别第一和第二端点的带宽容量，第二端点具有比第一端点更小的带宽容量，至少编码视频比特流的一部分以产生至少一个版本的第一数据分区和至少第二数据分区的多个版本，所述第二数据分区的多个版本包括至少一个高质量版本和至少一个低将所述第二数据分区的质量版本传送到所述第一分区的所述第一分区的所述至少一个版本和所述至少一个高质量版本，并将所述第二分区的所述至少一个低质量版本发送到所述第二分区端点。

6. 发明授权

US09131073B1 Motion estimation aided noise reduction 有权
标题翻译：运动估计辅助降噪
公开(公告)号：US09131073B1
公开(公告)日：2015-09-08
申请号：US13410942
申请日：2012-03-02
申请人： James Bankoski , Stefan Holmer
发明人： James Bankoski , Stefan Holmer
IPC分类号： H04N11/02 , H04N7/00 , H04N19/61
CPC分类号： H04N7/00 , H04N19/117 , H04N19/147 , H04N19/176 , H04N19/196 , H04N19/56 , H04N19/567 , H04N19/61 , H04N19/86
摘要： A method and apparatus for performing motion estimation aided noise reduction encoding and decoding are provided. Motion estimation aided noise reduction encoding can include identifying a motion vector for encoding a current block in a video frame based on a reference block in a reference frame, identifying a noise reduction block for denoising the current block, aligning the noise reduction block with the current block, denoising the current block, identifying a motion vector for encoding the denoised block, generating a residual block for encoding the denoised block, and encoding the denoised block. Denoising the current block can include identifying a filter coefficient for a pixel in the current block based on a corresponding pixel in the noise reduction block, producing a denoised pixel based on the coefficient and the corresponding pixel, and determining whether to use the denoised pixel or the current pixel for encoding the block.
摘要翻译：提供了一种用于执行运动估计辅助降噪编码和解码的方法和装置。运动估计辅助噪声降低编码可以包括基于参考帧中的参考块识别用于对视频帧中的当前块进行编码的运动矢量，识别用于去噪当前块的噪声降低块，将噪声降低块与当前的对准块，去噪当前块，识别用于对去噪块进行编码的运动矢量，生成用于对去噪块进行编码的残差块，以及对去噪块进行编码。对当前块进行去噪可以包括基于噪声降低块中的对应像素识别当前块中的像素的滤波器系数，基于系数和相应像素产生去噪像素，以及确定是否使用去噪像素，用于编码块的当前像素。

7. 发明授权

US08908767B1 Temporal motion vector prediction 有权
标题翻译：时间运动矢量预测
公开(公告)号：US08908767B1
公开(公告)日：2014-12-09
申请号：US13369671
申请日：2012-02-09
申请人： Stefan Holmer
发明人： Stefan Holmer
IPC分类号： H04N11/04 , H04N11/02 , H04N19/583 , H04N19/51
CPC分类号： H04N19/00709 , H04N19/52 , H04N19/583
摘要： Taught herein are techniques to incorporate temporal motion vector prediction in encoding and decoding a video stream. Motion vectors are temporally predicted for blocks of a frame. An extrapolated position for at least one block of a first frame is predicted in a second frame using a respective motion vector of the at least one block. A temporal motion vector for a block of the second frame is calculated as a combination of respective motion vectors of blocks overlapping the block of the second frame if at least one of the overlapping blocks is an extrapolated block at the extrapolated position. The temporal motion vector is used in a motion estimation algorithm to select a motion vector for the block, and the block is encoded using the selected motion vector.
摘要翻译：这里教授的是将时间运动矢量预测并入视频流的编码和解码中的技术。运动矢量对帧的块进行时间预测。使用至少一个块的相应运动矢量在第二帧中预测第一帧的至少一个块的外推位置。如果重叠块中的至少一个是外插位置的外推块，则将第二帧的块的时间运动矢量计算为与第二帧的块重叠的块的各个运动矢量的组合。在运动估计算法中使用时间运动矢量来选择块的运动矢量，并且使用所选择的运动矢量对块进行编码。

8. 发明授权

US08797378B1 Distributed communications 有权
标题翻译：分布式通信
公开(公告)号：US08797378B1
公开(公告)日：2014-08-05
申请号：US13351944
申请日：2012-01-17
申请人： Stefan Holmer
发明人： Stefan Holmer
IPC分类号： H04N7/14
CPC分类号： H04N7/147
摘要： In one method for communicating, a server can receive a first encoded media stream from a first sending device and a second encoded media stream from a second sending device from a plurality of co-located sending devices. The server can determine spatial relationships between the plurality of co-located sending devices and a plurality of co-located receiving devices. The server can select a first receiving device as a destination for the first encoded media stream and a second receiving device as a destination for the second encoded media stream based on the sending and receiving spatial relationships. The server can send the first encoded media stream to the first receiving device and the second encoded media stream to the second receiving device to be decoded and rendered. The spatial relationships can be based on physical locations for the plurality of co-located sending and receiving devices.
摘要翻译：在一种用于通信的方法中，服务器可以从第一发送设备接收第一编码媒体流，以及从多个共址发送设备接收来自第二发送设备的第二编码媒体流。服务器可以确定多个同位发送设备和多个共处理接收设备之间的空间关系。基于发送和接收空间关系，服务器可以选择第一接收设备作为第一编码媒体流的目的地以及第二接收设备作为第二编码媒体流的目的地。服务器可以将第一编码媒体流发送到第一接收设备，并将第二编码媒体流发送到第二接收设备进行解码和呈现。空间关系可以基于多个同位发送和接收设备的物理位置。

9. 发明授权

US08750293B2 Apparatus and method for rendering video with retransmission delay 有权
标题翻译：用重播延迟渲染视频的装置和方法
公开(公告)号：US08750293B2
公开(公告)日：2014-06-10
申请号：US13144586
申请日：2011-05-06
申请人： Stefan Holmer
发明人： Stefan Holmer
IPC分类号： H04L12/66 , H04L29/06 , H04L1/16 , H04N21/6375 , H04N21/647 , H04N21/44
CPC分类号： H04L29/06448 , H04L1/16 , H04L29/06455 , H04L29/06462 , H04N7/24 , H04N21/242 , H04N21/4302 , H04N21/44004 , H04N21/6375 , H04N21/64776
摘要： A system, apparatus, and method for rendering a video stream, the video stream having a plurality of frames. One method includes receiving the plurality of frames via a network, each frame having an estimated arrival time, determining a retransmission rendering delay, based on a round-trip delay and a round-trip delay constant, for a current frame of the plurality of frames using a processor, determining a render time for the current frame using a sum of the current frame's estimated arrival time and the retransmission rendering delay, and rendering the current frame at the render time.
摘要翻译：一种用于渲染视频流的系统，装置和方法，该视频流具有多个帧。一种方法包括经由网络接收多个帧，每帧具有估计的到达时间，基于往返延迟和往返延迟常数确定多个帧中的当前帧的重传呈现延迟使用处理器，使用当前帧的估计到达时间和重发渲染延迟的和确定当前帧的渲染时间，并在渲染时渲染当前帧。

10. 发明申请

US20120281572A1 Method And Device For Determining A Jitter Buffer Level 有权
标题翻译：用于确定抖动缓冲区级别的方法和设备
公开(公告)号：US20120281572A1
公开(公告)日：2012-11-08
申请号：US13497625
申请日：2010-09-20
申请人： Henrik Fahlberg Lundin , Stefan Holmer
发明人： Henrik Fahlberg Lundin , Stefan Holmer
IPC分类号： H04L12/26
CPC分类号： H04L43/087 , H04L43/0852 , H04L43/106 , H04L49/90 , H04L49/9005
摘要： It is disclosed a method for determining a buffer level of a jitter data buffer (203) comprised in a receiver (200) adapted to sequentially receive data packets from a communications network (202), wherein frames are encoded into the data packets. Each frame may comprise timestamp information and payload size information. The buffer level is determined on the basis of a first part of frame arrival delay related to payload size variation between frames and a second part related to the amount of crosstraffic in the communications network (202). It is further disclosed a receiver (200) adapted to sequentially receive data packets from a communications network (202), wherein frames are encoded into the data packets, the receiver (200) comprising a data jitter buffer (203) and being adapted to perform the method.
摘要翻译：公开了一种用于确定包括在接收器（200）中的抖动数据缓冲器（203）的缓冲器电平的方法，该接收机适于顺序地从通信网络（202）接收数据分组，其中帧被编码到数据分组中。每个帧可以包括时间戳信息和有效载荷大小信息。基于与帧之间的有效负载大小变化相关的帧到达延迟的第一部分和与通信网络（202）中的交叉量相关的第二部分，确定缓冲器电平。还公开了一种适于从通信网络（202）顺序地接收数据分组的接收机（200），其中帧被编码为数据分组，所述接收机（200）包括数据抖动缓冲器（203）并且适于执行方法。

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