公开(公告)号：US08634300B2

公开(公告)日：2014-01-21

申请号：US13386633

申请日：2009-08-31

申请人： Wai-Tian Tan ,  Andrew J. Patti

发明人： Wai-Tian Tan ,  Andrew J. Patti

IPC分类号： H04N7/24 ,  H04N17/00

CPC分类号： H04N21/23805 ,  H04L65/1083 ,  H04L65/608 ,  H04L65/80 ,  H04N21/6437 ,  H04N21/64723 ,  H04N21/64761

摘要： According to one embodiment, video data from a video transmitter (110) is received (420) at a network buffer (130). Information that pertains to a network buffer drain rate (14) of the network buffer (1q3) is monitored (430). The network buffer drain rate (140) is a rate that the video data is removed from the network buffer (130). The network buffer drain rate (140) is estimated (440) based on the monitored information. A transmission rate (120) that the video transmitter (110) transmits future video data is adjusted (450) to not exceed an allowed transmission rate (ATR) that is calculated based on the estimation of the network buffer drain rate (140).

摘要翻译： 根据一个实施例，来自视频发射器（110）的视频数据在网络缓冲器（130）处被接收（420）。 监视与网络缓冲器（1q3）的网络缓冲器排出速率（14）有关的信息（430）。 网络缓冲器排出速率（140）是从网络缓冲器（130）移除视频数据的速率。 基于监视的信息估计（440）网络缓冲器排出速率（140）。 将视频发送器（110）发送未来视频数据的传输速率（120）（450）调整为不超过基于网络缓冲器排出速率（140）的估计而计算的允许传输速率（ATR）。

公开(公告)号：US08411743B2

公开(公告)日：2013-04-02

申请号：US12771554

申请日：2010-04-30

申请人： Debargha Mukherjee ,  Wai-Tian Tan ,  Andrew J. Patti

发明人： Debargha Mukherjee ,  Wai-Tian Tan ,  Andrew J. Patti

IPC分类号： H04N7/12

CPC分类号： H04N19/395 ,  H04N19/12 ,  H04N19/132 ,  H04N19/14 ,  H04N19/164 ,  H04N19/187 ,  H04N19/61

摘要： A computer-implemented method for encoding using feedback. A base layer of a current frame is encoded. The residue of the current frame is generated. The residue of the current frame is encoded. Also, in response to feedback from a receiver, a coding strategy for each block of the current frame is determined and coding is performed according to one or more of source coding and Wyner-Ziv coding. The feedback is based on the base layer of the current frame and previous correctly received enhancement frames.

摘要翻译： 一种用计算机实现的使用反馈进行编码的方法。 编码当前帧的基本层。 生成当前帧的残差。 当前帧的残差被编码。 此外，响应于来自接收机的反馈，确定当前帧的每个块的编码策略，并且根据源编码和Wyner-Ziv编码中的一个或多个来执行编码。 反馈基于当前帧的基本层和先前正确接收到的增强帧。

公开(公告)号：US20120195500A1

公开(公告)日：2012-08-02

申请号：US13018090

申请日：2011-01-31

申请人： Andrew J. PATTI

发明人： Andrew J. PATTI

IPC分类号： G06K9/34

CPC分类号： G06K9/00765

摘要： A motion-based, multi-stage segmentation of a video frame is provided. A first segmentation stage identifies motion boundaries in a plurality of sub-blocks of the video frame. The motion boundaries are identified by computing an occlusion-insensitive localized motion cost and minimizing a MAP-MRF energy based on the localized motion cost. A second segmentation stage refines the motion boundaries by adding a color cost to the localized motion cost in the MAP-MRF energy.

摘要翻译： 提供视频帧的基于运动的多级分段。 第一分段级识别视频帧的多个子块中的运动边界。 运动边界通过计算阻塞不敏感的局部运动成本并基于局部运动成本最小化MAP-MRF能量来识别。 第二分段阶段通过向MAP-MRF能量中的局部运动成本添加颜色成本来优化运动边界。

公开(公告)号：US20120106625A1

公开(公告)日：2012-05-03

申请号：US13011480

申请日：2011-01-21

申请人： Wai-Tian TAN ,  Andrew J. Patti ,  Mitchell Trott ,  Cagdas Bilen

发明人： Wai-Tian TAN ,  Andrew J. Patti ,  Mitchell Trott ,  Cagdas Bilen

IPC分类号： H04N7/26

CPC分类号： H04N19/40 ,  H04N19/58

摘要： Adapting characteristics of a video stream. A video stream is received, at a video adaptation device, which employs a first reference frame. A determination is made, at a video adaptation device, to splice the video stream to employ a second reference frame in place of the first reference frame. The video stream is spliced, at a video adaptation device, to create a spliced video stream that employs the second reference frame.

摘要翻译： 适应视频流的特征。 在采用第一参考帧的视频适配装置处接收视频流。 在视频适配装置处确定代替第一参考帧来拼接视频流以采用第二参考帧。 视频流在视频适配装置处被拼接，以创建采用第二参考帧的拼接视频流。

公开(公告)号：US5602654A

公开(公告)日：1997-02-11

申请号：US369847

申请日：1995-01-06

申请人： Andrew J. Patti ,  Jonathan K. Riek ,  M. Ibrahim Sezan

发明人： Andrew J. Patti ,  Jonathan K. Riek ,  M. Ibrahim Sezan

IPC分类号： H04N5/44 ,  H04N1/40 ,  G06K9/40 ,  H04N7/01

CPC分类号： H04N7/012

摘要： The present invention is a two-step, contour-sensitive deinterlacing technique. The first step of the technique determines for each missing pixel of an interlaced frame of image pixels whether the absolute difference between the pixels above and below the missing pixel is greater than a preselected threshold value. If it is decided that the missing pixel lies at a low-vertical frequency location, its value is estimated via vertical interpolation. Otherwise, the second step is carried out. The goal of the second step is to determine whether or not there is a well-defined contour passing through the missing pixel, and to determine its direction if there is one. In the presence of a well-defined contour, the missing pixel is obtained by averaging the intensity values along the direction of the contour in the field lines immediately above and below the missing field line. Otherwise the process effectively falls back to vertical interpolation. The presence of a well-defined contour is detected by comparing the summed absolute differences (SAD) of blocks of pixels along a predetermined set of candidate directions, including the vertical direction, and selecting the direction associated with the least SAD. The fall-back to vertical interpolation in the absence of a well-defined contour is implicit due to the weighting of the SAD corresponding to the vertical direction.

摘要翻译： 本发明是两步轮廓敏感的去隔行技术。 该技术的第一步确定图像像素的隔行帧的每个丢失像素，无论丢失像素之上和之下的像素之间的绝对差是否大于预先选择的阈值。 如果确定丢失的像素位于低垂直频率位置，则通过垂直插值估计其值。 否则，执行第二步。 第二步的目标是确定是否存在通过缺失像素的明确定义的轮廓，并确定其方向是否存在。 在存在明确定义的轮廓的情况下，通过在紧邻失踪场线上方和下方的场线中对沿着轮廓方向的强度值进行平均来获得缺失像素。 否则，该过程有效地回到垂直内插。 通过比较沿着包括垂直方向的预定候选方向集合的像素块的总和绝对差（SAD）以及选择与最小SAD相关联的方向来检测明确定义的轮廓的存在。 由于对应于垂直方向的SAD的加权，在没有明确定义的轮廓的情况下，回退到垂直内插是隐含的。

公开(公告)号：US5521644A

公开(公告)日：1996-05-28

申请号：US268363

申请日：1994-06-30

申请人： M. Ibrahim Sezan ,  Andrew J. Patti

发明人： M. Ibrahim Sezan ,  Andrew J. Patti

IPC分类号： H04N11/22 ,  H04N5/44 ,  H04N7/01

CPC分类号： H04N7/012

摘要： A hybrid deinterlace mechanism employs motion detection as a precursor to select the value for each missing pixel of a deinterlaced frame, which is generated by using four consecutive fields to produce a motion detection map that is subsequently coupled to a deinterlacer, together with a selected two of the four consecutive fields. These two selected fields and the motion map are sufficient for the deinterlacer to completely characterize the resulting deinterlaced frame. The deinterlacer switches between vertical interpolation and merging based upon motion. Motion is detected by applying a logic OR operation to respective even and odd field binary motion detection signals. In the absence of motion, the pixel values of an odd field and its immediately succeeding even field are merged. On the other hand, if motion is detected, vertical interpolation is carried out for the even field, by a linear combination of immediately adjacent pixels, respectively above and below the pixel of interest.

摘要翻译： 混合去隔行机构采用运动检测作为前兆，为去隔行帧的每个丢失像素选择值，其通过使用四个连续的场来产生运动检测图，随后与选择的两个 的四个连续的领域。 这两个所选择的场和运动图足以使去隔行扫描器完全表征所得到的去隔行帧。 去隔行扫描器基于运动在垂直内插和合并之间切换。 通过对相应的偶场和奇数二进制运动检测信号应用逻辑“或”运算来检测运动。 在不存在运动的情况下，合并奇数场及其紧随其后的偶数场的像素值。 另一方面，如果检测到运动，则通过分别在感兴趣像素的上方和下方的直接相邻像素的线性组合对偶数场执行垂直内插。

公开(公告)号：US09264939B2

公开(公告)日：2016-02-16

申请号：US14345268

申请日：2011-10-07

申请人： Andrew J. Patti ,  Wai-Tian Tan

发明人： Andrew J. Patti ,  Wai-Tian Tan

IPC分类号： H04W28/06 ,  H04L1/18

CPC分类号： H04W28/06 ,  H04L1/1867

摘要： Data transmission over a wireless connection is improved by determining whether packets include a packet containing an end of a data frame, and if the packets are determined to include such a packet, transmitting the packets together over the wireless connection.

摘要翻译： 通过确定分组是否包括包含数据帧的结束的分组，并且如果分组被确定为包括这样的分组，则通过无线连接将分组发送到一起，来改进无线连接上的数据传输。

公开(公告)号：US08526674B2

公开(公告)日：2013-09-03

申请号：US13018090

申请日：2011-01-31

申请人： Andrew J Patti

发明人： Andrew J Patti

IPC分类号： G06K9/00

CPC分类号： G06K9/00765

摘要： A motion-based, multi-stage segmentation of a video frame is provided. A first segmentation stage identifies motion boundaries in a plurality of sub-blocks of the video frame. The motion boundaries are identified by computing an occlusion-insensitive localized motion cost and minimizing a MAP-MRF energy based on the localized motion cost. A second segmentation stage refines the motion boundaries by adding a color cost to the localized motion cost in the MAP-MRF energy.

摘要翻译： 提供视频帧的基于运动的多级分段。 第一分段级识别视频帧的多个子块中的运动边界。 运动边界通过计算阻塞不敏感的局部运动成本并基于局部运动成本最小化MAP-MRF能量来识别。 第二分段阶段通过向MAP-MRF能量中的局部运动成本添加颜色成本来优化运动边界。

公开(公告)号：US20130039410A1

公开(公告)日：2013-02-14

申请号：US13205389

申请日：2011-08-08

申请人： Wai-Tian Tan ,  Andrew J. Patti ,  Mitchell Trott

发明人： Wai-Tian Tan ,  Andrew J. Patti ,  Mitchell Trott

IPC分类号： H04N7/64 ,  H04N7/26 ,  H04B1/66

CPC分类号： H03M13/373 ,  H03M13/05 ,  H03M13/35 ,  H04N19/159 ,  H04N19/172 ,  H04N19/66 ,  H04N19/895

摘要： Methods for adapting the sliding window of sliding window-based error correcting codes based on the coding structure of a compressed media stream are disclosed. In one aspect, a sender packetizes each frame of a media stream to be sent to a receiver into a set of frame packets. The sender also determines compression dependence of each frame and adapts a sliding window of a sliding window-based error correcting code based on the compression dependence of the frame. The sender encodes the frame packets into at least one associated parity packet according to the error correcting code with the adapted sliding window, and sends the frame packets and the at least one associated parity packet to the receiver.

摘要翻译： 公开了基于压缩媒体流的编码结构来适应基于滑动窗口的纠错码的滑动窗口的方法。 在一个方面，发送方将要发送到接收机的媒体流的每个帧打包成一组帧分组。 发送者还确定每个帧的压缩依赖性，并且基于帧的压缩依赖性来适配基于滑动窗口的纠错码的滑动窗口。 发送者根据具有适应的滑动窗口的纠错码将帧分组编码成至少一个相关联的奇偶校验分组，并将帧分组和至少一个相关联的奇偶校验分组发送到接收机。

公开(公告)号：US20120047547A1

公开(公告)日：2012-02-23

申请号：US12858352

申请日：2010-08-17

申请人： Andrew J. PATTI ,  Wai-Tian Tan

发明人： Andrew J. PATTI ,  Wai-Tian Tan

IPC分类号： H04N7/173

CPC分类号： H04N21/2365 ,  H04N21/2402

摘要： A computer-implemented method for managing upstream bandwidth of a network including changing QoS settings, by a router, of a video device of a plurality of video devices in the network to a higher priority than other of the plurality of video devices. The plurality of video devices concurrently transmit video data. The computer-implemented method further includes estimating an overall upstream bandwidth by the higher priority video device and determining operating rates, by the router, for the plurality of video devices, such that said modem buffer is not backlogged.

摘要翻译： 一种用于管理网络的上行带宽的计算机实现的方法，包括将路由器中的网络中的多个视频设备的视频设备的QoS设置改变为比多个视频设备中的其他视频设备更高的优先级。 多个视频设备同时发送视频数据。 计算机实现的方法还包括通过较高优先级的视频设备估计整个上行带宽，并且由路由器确定多个视频设备的操作速率，使得所述调制解调器缓冲器不被积压。