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71. 发明授权

US09197889B2 Method and system for multi-layer rate control for a multi-codec system 有权
标题翻译：用于多编解码系统的多层速率控制的方法和系统
公开(公告)号：US09197889B2
公开(公告)日：2015-11-24
申请号：US14186938
申请日：2014-02-21
申请人： BROADCOM CORPORATION
发明人： Gheorghe Berbecel , Xuemin Chen
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N5/14 , H04N9/64 , H04N7/01 , H04N11/20 , G06K9/32 , H04N19/115 , H04N21/2365 , H04N19/176 , H04N19/172 , H04N19/61 , H04N19/124 , H04N19/146 , H04N19/152 , H04N19/187
CPC分类号： H04N19/0006 , H04N19/115 , H04N19/124 , H04N19/146 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/187 , H04N19/61 , H04N21/2365
摘要： A video transmitter comprising a plurality of encoders may be operable to determine, for a transport stream, a constant overall number of bits per time interval corresponding to a frame in the transport stream. For each time interval corresponding to a start and an end of encoding of each of frames using each of the encoders, the video transmitter may allocate a target number of bits to each of the frames to achieve the constant overall number of bits. The allocation of the target number of bits may be based on frame types of the frames and CODEC types of the encoders, where the allocated target number of bits for each of the frames meets buffer overflow/underflow requirements associated with each of the encoders. A quantization parameter (QP) may be calculated and adjusted at each of one or more layers for generating an actual number of bits during encoding.
摘要翻译：包括多个编码器的视频发射器可以用于为传输流确定对应于传输流中的帧的每个时间间隔的恒定总体位数。对于使用每个编码器的每个帧的编码的开始和结束的每个时间间隔，视频发送器可以向每个帧分配目标比特数以实现恒定的总比特数。目标位数的分配可以基于编码器的帧和CODEC类型的帧类型，其中每个帧的分配的目标位数满足与每个编码器相关联的缓冲器溢出/下溢要求。可以在一个或多个层中的每一个处计算和调整量化参数（QP），以在编码期间生成实际的位数。

72. 发明授权

US09191675B2 Adaptive rate control for encoding of variable frame rate video sources 有权
标题翻译：用于编码可变帧率视频源的自适应速率控制
公开(公告)号：US09191675B2
公开(公告)日：2015-11-17
申请号：US13618931
申请日：2012-09-14
申请人： Wenqing Jiang , Weiping Pan
发明人： Wenqing Jiang , Weiping Pan
IPC分类号： H04N19/124 , H04N19/152 , H04N19/63 , H04N19/61 , H04N19/50
CPC分类号： H04N19/152 , H04N19/115 , H04N19/124 , H04N19/50 , H04N19/61 , H04N19/63
摘要： Techniques for performing rate control for encoding of video frames are provided. A first timestamp that indicates a prior video frame capture time and a second timestamp that indicates a current video frame capture time are received. A time difference between these timestamps is determined. An average video data bit encoding rate is multiplied by the determined time difference to calculate a bit budget. An indication of a number of encoded video data bits of the prior video frame and of any further video frames encoded subsequent to the prior video frame and prior to the current video frame is received. A virtual buffer fill level is adjusted based on a difference between the indicated number of encoded video bits and the calculated bit budget. A quantizer parameter is adjusted based on the adjusted virtual buffer fill level. The current video frame is encoded according to the adjusted quantizer parameter.
摘要翻译：提供了执行视频帧编码速率控制的技术。接收指示先前的视频帧捕获时间的第一时间戳和指示当前视频帧捕获时间的第二时间戳。确定这些时间戳之间的时间差。将平均视频数据比特编码率乘以确定的时间差以计算比特预算。接收先前视频帧的编码视频数据位数以及在先前视频帧之后和当前视频帧之前编码的任何另外的视频帧的指示。基于所指示的编码视频位数与计算的位预算之间的差异来调整虚拟缓冲器填充电平。基于调整后的虚拟缓冲区填充级别调整量化参数。当前视频帧根据调整后的量化参数进行编码。

73. 发明授权

US09191664B2 Adaptive bitrate management for streaming media over packet networks 有权
标题翻译：通过分组网络对流媒体进行自适应比特率管理
公开(公告)号：US09191664B2
公开(公告)日：2015-11-17
申请号：US14077139
申请日：2013-11-11
申请人： Citrix Systems, Inc.
发明人： Miguel A. Melnyk , Nicholas J. Stavrakos , Fabian Breg , Andrew Penner
IPC分类号： H04N19/152 , H04L12/801 , H04L12/853 , H04L12/825 , H04L12/841 , H04L12/823 , H04N21/234 , H04N21/2343 , H04N21/24 , H04N21/2662 , H04N21/44 , H04N21/6377 , H04N21/6437 , H04N21/658 , H04N19/196 , H04N19/115
CPC分类号： H04N19/00193 , H04L47/10 , H04L47/2416 , H04L47/25 , H04L47/263 , H04L47/283 , H04L47/32 , H04N19/115 , H04N19/152 , H04N19/197 , H04N21/23406 , H04N21/2343 , H04N21/234381 , H04N21/2402 , H04N21/2662 , H04N21/44004 , H04N21/6377 , H04N21/6437 , H04N21/658 , H04N21/6582
摘要： A method including receiving a receiver report from a terminal; estimating one or more network conditions of a media network based at least in part on the receiver report; determining an optimal session bitrate based on the estimated one or more network conditions; and providing media data to the terminal based on the optimal session bitrate.
摘要翻译：一种方法，包括从终端接收接收机报告; 至少部分地基于所述接收机报告来估计媒体网络的一个或多个网络条件; 基于估计的一个或多个网络条件确定最佳会话比特率; 以及基于最佳会话比特率向终端提供媒体数据。

74. 发明授权

US09189806B2 Streaming playback and dynamic ad insertion 有权
公开(公告)号：US09189806B2
公开(公告)日：2015-11-17
申请号：US14675099
申请日：2015-03-31
申请人： Disney Enterprises, Inc.
发明人： Giuseppe Manzari , Robert Longwell , Chang Liu , Andrew Bauch , David Brueck
IPC分类号： G06F15/16 , G06Q30/02 , H04L29/06 , H04L29/08 , H04N19/127 , H04N19/152 , H04N19/187 , H04N19/196 , H04N21/81
CPC分类号： H04N21/23424 , G06Q30/02 , G06Q30/0277 , H04L29/06027 , H04L65/4084 , H04L65/602 , H04L65/604 , H04L65/607 , H04L67/02 , H04N19/127 , H04N19/152 , H04N19/187 , H04N19/196 , H04N21/2662 , H04N21/812
摘要： There is provided a system and method for dynamically generated client side streaming playlists. There is provided a method comprising receiving a request to stream a video asset for playback, retrieving, from a network, a video asset playlist corresponding to the video asset and an ad campaign playlist, generating a consolidated video playlist including the video asset playlist and the ad campaign playlist, and processing the consolidated video playlist using a media playback framework to stream a plurality of video files from the network for decoding and output to a display. Discontinuity tags within the video asset playlist may be utilized as insertion points for portions of the ad campaign playlist. The consolidated video playlist may be accessed through a local HTTP web server, advantageously allowing the use of commonly installed media playback framework models such as QuickTime X to trigger adaptive bitrate support through HTTP Live Streaming.

75. 发明授权

US09137551B2 Dynamic bit rate adaptation over bandwidth varying connection 有权
标题翻译：动态比特率适应带宽变化连接
公开(公告)号：US09137551B2
公开(公告)日：2015-09-15
申请号：US13210652
申请日：2011-08-16
申请人： Sébastien Côté , Jean-Noël Krause
发明人： Sébastien Côté , Jean-Noël Krause
IPC分类号： H04N7/12 , H04N21/234 , H04N19/152 , H04N21/2343 , H04N21/24 , H04N21/2662 , H04N21/414 , H04N21/643 , H04N21/845 , H04N19/146 , H04N19/40
CPC分类号： H04N19/40 , H04L65/607 , H04N19/146 , H04N19/152 , H04N21/23406 , H04N21/2343 , H04N21/2402 , H04N21/2662 , H04N21/41407 , H04N21/64322 , H04N21/8456
摘要： Audio and video streams of a media file are transcoded just-in-time by keeping the transcoding process synchronized to a wall clock. The transcoding is initially configured slightly faster than real-time. The transcoded frames are pushed from the transcoder through a variable bandwidth connection as soon as they are transcoded. Transcoding is then monitored periodically to assess the bandwidth that was available during the transmission of a transcoded buffer. Two time intervals are measured: a buffer interval which is the difference in the transcoded buffer timestamps of the previous two transmissions, and a clock interval corresponding to the real time transmission time of the last transcoded buffer. If a significant difference is observed, the transcoder bit rate is adjusted by a factor that is derived from that difference.
摘要翻译：媒体文件的音频和视频流通过保持代码转换过程与挂钟同步而及时转码。初始配置的转码速度比实时速度快。一旦代码转码器被代码转换，代码转换器就可以通过可变带宽连接被推送。然后定期监测代码转换，以评估在代码转换的缓冲区传输期间可用的带宽。测量两个时间间隔：作为先前两次传输的代码转换的缓冲器时间戳中的差的缓冲区间隔，以及对应于最后的转码缓冲器的实时传输时间的时钟间隔。如果观察到显着的差异，则通过从该差异导出的因子来调整代码转换器比特率。

76. 发明授权

US09137548B2 Networked image/video processing system and network site therefor 有权
标题翻译：网络图像/视频处理系统及网站
公开(公告)号：US09137548B2
公开(公告)日：2015-09-15
申请号：US13327684
申请日：2011-12-15
申请人： Wei Li , Bill Reckwerdt
发明人： Wei Li , Bill Reckwerdt
IPC分类号： H04N7/12 , H04N19/86 , H04N19/115 , H04N19/117 , H04N19/152 , H04N19/164 , H04N19/61
CPC分类号： H04N19/86 , H04N19/115 , H04N19/117 , H04N19/152 , H04N19/164 , H04N19/61
摘要： A distributed image/video processing system is disclosed herein wherein one or more of digital image/video recorders (e.g., a digital cameras, video recorders, or smart phones, etc.) are in network communication with central network site for transmitting image or video data thereto. The recorders process their image/video data dependent upon an estimate of a measurement of network bandwidth that is available for transmitting image or video data to the central network site.
摘要翻译：本文公开了一种分布式图像/视频处理系统，其中数字图像/视频记录器（例如，数字照相机，视频记录器或智能电话等）中的一个或多个与中央网络站点进行网络通信，用于传输图像或视频数据。记录器根据可用于将图像或视频数据传输到中央网络站点的网络带宽测量值的估计来处理其图像/视频数据。

77. 发明授权

US09106723B2 Fast-start streaming and buffering of streaming content for personal media player 有权
标题翻译：为个人媒体播放器快速启动流媒体和缓冲流媒体内容
公开(公告)号：US09106723B2
公开(公告)日：2015-08-11
申请号：US14144225
申请日：2013-12-30
申请人： SLING MEDIA INC.
发明人： Jason Gary Krikorian , Blake Gary Krikorian , Bhupendra Natwerlal Shah , Alexander Gurzhi , Satish Iyer
IPC分类号： H04L29/06 , H04N21/234 , H04N21/258 , H04N21/432 , H04N21/433 , H04N21/436 , H04N21/438 , H04N21/44 , H04N21/4402 , H04N21/63 , H04N21/6587 , H04N21/472 , H04N19/172 , H04N19/102 , H04N19/115 , H04N19/61 , H04N19/107 , H04N19/117 , H04N19/132 , H04N19/14 , H04N19/137 , H04N19/152 , H04N19/162 , H04N19/164 , H04N19/182 , H04N19/80 , H04N19/85 , H04N19/40 , H04N19/169 , H04L12/801 , H04H60/80
CPC分类号： H04N21/44004 , H04H60/80 , H04L29/06027 , H04L47/12 , H04L65/4069 , H04L65/4076 , H04L65/4092 , H04L65/602 , H04L65/607 , H04N19/102 , H04N19/107 , H04N19/115 , H04N19/117 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/152 , H04N19/162 , H04N19/164 , H04N19/172 , H04N19/182 , H04N19/188 , H04N19/40 , H04N19/61 , H04N19/80 , H04N19/85 , H04N21/23406 , H04N21/25891 , H04N21/4325 , H04N21/4331 , H04N21/43615 , H04N21/4383 , H04N21/4384 , H04N21/4398 , H04N21/4402 , H04N21/440263 , H04N21/47202 , H04N21/47217 , H04N21/632 , H04N21/6587
摘要： Systems and methods allow playback of a placeshifted media stream received via a network. The placeshifted media stream is received and stored in a buffer prior to playback. Responsive to receiving the user command to change the content of the media stream, the buffer is flushed prior to receiving the changed content in the placeshifted media stream.
摘要翻译：系统和方法允许播放经由网络接收的地点移动的媒体流。在播放之前接收并存储放置的媒体流并将其存储在缓冲器中。响应于接收用户命令来改变媒体流的内容，缓冲器在接收到位置转换的媒体流中的改变的内容之前被刷新。

78. 发明授权

US09094684B2 Method for dual pass rate control video encoding 有权
标题翻译：双通速率控制视频编码方法
公开(公告)号：US09094684B2
公开(公告)日：2015-07-28
申请号：US13330137
申请日：2011-12-19
申请人： Mayer D. Schwartz , Peter A. Borgwardt , Shiv Saxena , Brenda L. Van Veldhuisen
发明人： Mayer D. Schwartz , Peter A. Borgwardt , Shiv Saxena , Brenda L. Van Veldhuisen
IPC分类号： H04N7/26 , H04N7/12 , H04N11/02 , H04N11/04 , H04N19/194 , H04N19/172 , H04N19/15 , H04N19/115 , H04N19/142 , H04N19/103 , H04N19/107 , H04N19/124 , H04N19/152 , H04N19/179
CPC分类号： H04N19/124 , H04N19/103 , H04N19/107 , H04N19/114 , H04N19/115 , H04N19/117 , H04N19/142 , H04N19/146 , H04N19/15 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/179 , H04N19/184 , H04N19/186 , H04N19/194
摘要： A method of dual-pass rate control video encoding and an encoder are disclosed. Uncompressed input video is received with a video encoder. First pass encoding is performed, and a second pass encoding is performed with the video encoder at a delay relative to the first pass. The first pass encoding detects scene changes within the input video, assigns macroblocks to a pre-determined number of activity classes, and determines a complexity of each picture within the sequence of pictures. Information from the first pass encoding concerning the scene changes, the activity classes, and the complexity are used for rate control determined in second pass encoding for producing and outputting a bit stream of compressed video. During at least one of the first pass and second pass encoding, boundaries of at least some of the GOPs are adjusted to be aligned with the scene changes.
摘要翻译：公开了一种双通速率控制视频编码方法和编码器。视频编码器接收未压缩的输入视频。执行第一遍编码，并且与视频编码器相对于第一遍延迟执行第二遍编码。第一遍编码检测输入视频内的场景变化，将宏块分配给预定数量的活动类别，并且确定图像序列内的每个图像的复杂度。来自关于场景变化的第一遍编码的信息，活动类别和复杂度被用于在用于产生和输出压缩视频的比特流的第二遍编码中确定的速率控制。在第一遍和第二遍编码中的至少一个编码期间，至少一些GOP的边界被调整为与场景变化对准。

79. 发明授权

US09077968B2 Image processing apparatus and method, and program 有权
标题翻译：图像处理装置及方法及程序
公开(公告)号：US09077968B2
公开(公告)日：2015-07-07
申请号：US13843024
申请日：2013-03-15
申请人： Sony Corporation
发明人： Kazushi Sato , Junichi Tanaka , Yiwen Zhu , Yoichi Yagasaki
IPC分类号： H04N7/12 , H04N19/50 , H04N19/176 , H04N19/172 , H04N19/11 , H04N19/109 , H04N19/124 , H04N19/152 , H04N19/61
CPC分类号： H04N19/50 , H04N19/109 , H04N19/11 , H04N19/124 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/61
摘要： An image processing apparatus, a method, and a program that enable an amount of code to be suppressed below a desired value with more reliability. An emergency mode determining section determines that the amount of code of a next picture is likely to exceed an upper limit if a target bit calculated by a rate controlling section exceeds a predetermined upper limit. If it is determined that the amount of code of the next picture is likely to exceed the upper limit, the code amount controlling section controls an orthogonal transducing section to replace a transform coefficient of a predetermined frequency component with zero, controls an intra predicting section to restrict intra prediction modes to be applied, and controls a mode determining section to restrict inter prediction modes to be applied. The prevent invention can be applied to an encoding apparatus.
摘要翻译：一种图像处理装置，方法和程序，其能够将代码量抑制到具有更高可靠性的期望值以下。如果由速率控制部分计算的目标比特超过预定的上限，则紧急模式确定部分确定下一个图片的代码量可能超过上限。如果确定下一图像的代码量可能超过上限，则代码量控制部分控制正交转换部分以将零预定频率分量的变换系数替换为0，将帧内预测部分控制为限制要应用的帧内预测模式，并且控制模式确定部分来限制要应用的帧间预测模式。防止发明可以应用于编码装置。

80. 发明授权

US08982945B2 Apparatus, method, and computer program for encoding video information using a variable bit-rate 有权
标题翻译：用于使用可变比特率对视频信息进行编码的装置，方法和计算机程序
公开(公告)号：US08982945B2
公开(公告)日：2015-03-17
申请号：US10700877
申请日：2003-11-04
申请人： Lucas Y. W. Hui
发明人： Lucas Y. W. Hui
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/114 , H04N19/124 , H04N19/136 , H04N19/152 , H04N19/172 , H04N19/179 , H04N19/46
CPC分类号： H04N19/179 , H04N19/114 , H04N19/124 , H04N19/136 , H04N19/152 , H04N19/172 , H04N19/46
摘要： An apparatus, method, and computer program encode video information. The apparatus, method, and computer program use a global deviation for previously encoded video information to encode additional video information. The global deviation represents a difference between (1) at least one expected characteristic of the previously encoded video information if encoded at a target bit-rate and (2) at least one actual characteristic of the previously encoded video information. The apparatus, method, and computer program use the global deviation to adjust at least one encoding parameter, which is then used to encode the additional video information.
摘要翻译：设备，方法和计算机程序对视频信息进行编码。装置，方法和计算机程序使用先前编码的视频信息的全局偏差来编码附加视频信息。全局偏差表示（1）以目标比特率编码的先前编码的视频信息的至少一个期望特征和（2）先前编码的视频信息的至少一个实际特性之间的差异。装置，方法和计算机程序使用全局偏差来调整至少一个编码参数，然后将其用于编码附加视频信息。

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