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51. 发明授权

US08625669B2 Predicting motion vectors for fields of forward-predicted interlaced video frames 有权
标题翻译：预测前向预测隔行视频帧的场的运动矢量
公开(公告)号：US08625669B2
公开(公告)日：2014-01-07
申请号：US12401831
申请日：2009-03-11
申请人： Thomas W. Holcomb
发明人： Thomas W. Holcomb
IPC分类号： H04N7/12
CPC分类号： H04N19/16 , H04N19/102 , H04N19/109 , H04N19/11 , H04N19/112 , H04N19/117 , H04N19/129 , H04N19/13 , H04N19/137 , H04N19/146 , H04N19/147 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/184 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/51 , H04N19/52 , H04N19/523 , H04N19/593 , H04N19/61 , H04N19/63 , H04N19/70 , H04N19/82 , H04N19/86 , H04N19/93
摘要： Techniques and tools for encoding and decoding predicted images in interlaced video are described. For example, a video encoder or decoder computes a motion vector predictor for a motion vector for a portion (e.g., a block or macroblock) of an interlaced P-field, including selecting between using a same polarity or opposite polarity motion vector predictor for the portion. The encoder/decoder processes the motion vector based at least in part on the motion vector predictor computed for the motion vector. The processing can comprise computing a motion vector differential between the motion vector and the motion vector predictor during encoding and reconstructing the motion vector from a motion vector differential and the motion vector predictor during decoding. The selecting can be based at least in part on a count of opposite polarity motion vectors for a neighborhood around the portion and/or a count of same polarity motion vectors.
摘要翻译：描述了用于对隔行视频中的预测图像进行编码和解码的技术和工具。例如，视频编码器或解码器计算用于隔行P场的一部分（例如，块或宏块）的运动矢量的运动矢量预测器，包括在使用相同极性或相反极性的运动矢量预测器之间进行选择一部分。编码器/解码器至少部分地基于为运动矢量计算的运动矢量预测器来处理运动矢量。处理可以包括在编码期间计算运动矢量和运动矢量预测器之间的运动矢量差分，并且在解码期间重建来自运动矢量差分的运动矢量和运动矢量预测器。该选择可以至少部分地基于对于该部分周围的邻域的相反极性运动矢量的计数和/或相同极性运动矢量的计数。

52. 发明授权

US08379851B2 Optimized client side rate control and indexed file layout for streaming media 有权
标题翻译：针对流媒体优化客户端速率控制和索引文件布局
公开(公告)号：US08379851B2
公开(公告)日：2013-02-19
申请号：US12119364
申请日：2008-05-12
申请人： Sanjeev Mehrotra , Kishore Kotteri , Bharath Siravara , Thomas W. Holcomb , Hui Gao , Serge Smirnov
发明人： Sanjeev Mehrotra , Kishore Kotteri , Bharath Siravara , Thomas W. Holcomb , Hui Gao , Serge Smirnov
IPC分类号： H04N7/167 , G06F15/16
CPC分类号： H04L65/607 , H04L65/608 , H04N21/00
摘要： An indexed file layout, comprising index information, is defined for segmented streaming of multimedia content. The index information can comprise program description information and streaming segment index information. In addition, the layout can comprise files containing streaming segments of the program, where the streaming segments are each encoded at one or more bitrates independently of other streaming segments of the program. The layout supports client switching between different bitrates at segment boundaries. Optimized client-side rate control of streaming content can be provided by defining a plurality of states, selecting available paths based on constraint conditions, and selecting a best path through the states (e.g., based on a distortion measure). In one client-side rate control solution states correspond to a specific bitrate of a specific streaming segment, and in another client-side rate control solution states correspond to a measure of client buffer fullness.
摘要翻译：包括索引信息的索引文件布局被定义用于多媒体内容的分段流。索引信息可以包括节目描述信息和流分片索引信息。此外，布局可以包括包含程序的流片段的文件，其中流片段每个以独立于节目的其他流片段的一个或多个比特率进行编码。该布局支持在段边界处的不同比特率之间的客户端切换。可以通过定义多个状态，基于约束条件选择可用路径以及选择通过状态的最佳路径（例如，基于失真度量）来提供流内容的优化客户端速率控制。在一个客户端速率控制解决方案中，状态对应于特定流分段的特定比特率，并且在另一客户端速率控制解决方案状态对应于客户端缓冲区充满度的度量。

53. 发明申请

US20120294355A1 VIDEO TRANSCODING WITH DYNAMICALLY MODIFIABLE SPATIAL RESOLUTION 有权
标题翻译：视频转换与动态可修改的空间分辨率
公开(公告)号：US20120294355A1
公开(公告)日：2012-11-22
申请号：US13109554
申请日：2011-05-17
申请人： Thomas W. Holcomb , Chih-Lung B. Lin
发明人： Thomas W. Holcomb , Chih-Lung B. Lin
IPC分类号： H04N7/26
CPC分类号： H04N19/40 , H04N19/132 , H04N19/14 , H04N19/15 , H04N19/157 , H04N19/172
摘要： An apparatus and method are disclosed for transcoding a compressed video stream. In one embodiment, a compressed video stream is decoded. A spatial resolution of the decoded video stream can then be dynamically modified. The video stream with the modified spatial resolution can be re-encoded and transmitted over a network for display on a client device. The spatial resolution can be dynamically modified based on a variety of techniques. For example, a current bitrate and quantization parameters associated with the frames can be used to determine the spatial resolution. Alternatively, the spatial and/or temporal complexity can be used to modify spatial resolution.
摘要翻译：公开了一种用于对压缩视频流进行代码转换的装置和方法。在一个实施例中，对压缩视频流进行解码。然后可以动态地修改解码的视频流的空间分辨率。具有修改的空间分辨率的视频流可以被重新编码并通过网络发送以在客户端设备上显示。可以基于各种技术来动态修改空间分辨率。例如，可以使用与帧相关联的当前比特率和量化参数来确定空间分辨率。或者，可以使用空间和/或时间复杂度来修改空间分辨率。

54. 发明授权

US08160132B2 Reducing key picture popping effects in video 有权
标题翻译：降低视频中的关键图片弹出效果
公开(公告)号：US08160132B2
公开(公告)日：2012-04-17
申请号：US12070181
申请日：2008-02-15
申请人： Thomas W. Holcomb
发明人： Thomas W. Holcomb
IPC分类号： H04N7/12
CPC分类号： H04N19/86 , H04N19/117 , H04N19/159 , H04N19/172 , H04N19/61 , H04N19/80
摘要： Techniques and tools are described for reducing key picture popping effects. In some embodiments, an encoding system filters a video picture that is to be encoded as a key picture using intra-picture compression. The filtering reduces detail in the picture relative to other video pictures that are to be encoded using inter-picture compression. In many cases, the filtering reduces key picture popping effects by selectively attenuating detail in the picture that is to be encoded as a key picture. The encoding tool can use a key picture filter strength parameter to control strength of the filtering. The tool encodes the filtered video picture using intra-picture compression and encodes the other video pictures using inter-picture compression.
摘要翻译：描述了技术和工具来减少关键图像弹出效果。在一些实施例中，编码系统使用图像内压缩对要编码为关键图像的视频图像进行滤波。该滤波可以减少图像中相对于使用图像间压缩进行编码的其他视频图像的细节。在许多情况下，滤波通过选择性地衰减要编码为关键图像的图像中的细节来减少关键图像弹出效果。编码工具可以使用关键图像滤波强度参数来控制滤波的强度。该工具使用图像内压缩对经滤波的视频图像进行编码，并使用图像间压缩对其他视频图像进行编码。

55. 发明申请

US20100135383A1 ENCODER WITH MULTIPLE RE-ENTRY AND EXIT POINTS 有权
标题翻译：具有多个重新输入和退出点的编码器
公开(公告)号：US20100135383A1
公开(公告)日：2010-06-03
申请号：US12324987
申请日：2008-11-28
申请人： Weidong Zhao , Thomas W. Holcomb , Chih-Lung B. Lin , William R. Sanders , Shijun Sun
发明人： Weidong Zhao , Thomas W. Holcomb , Chih-Lung B. Lin , William R. Sanders , Shijun Sun
IPC分类号： H04N7/24
CPC分类号： G06F9/50 , H04N19/42 , H04N19/439
摘要： An encoder is disclosed that is partitioned into discrete hardware modules. The discrete modules include multiple re-entry and exit points that allow enhanced control by software. The software can control the discrete modules during the encoding process and make adjustments according to CPU bandwidth and/or user requirements allowing for enhanced quality control and seamless hardware/software operations. In one embodiment, a media stream is received into an encoder that includes a pipeline of multiple hardware stages for encoding. An intermediate result is provided from at least one of the hardware stages to an encoding control module that processes the intermediate result to determine configuration instructions for a next hardware stage in the pipeline. Thus, the encoding process can be modified dynamically through hardware and software interactions as the media stream progresses through the pipeline of the encoder.
摘要翻译：公开了一种被分割成离散硬件模块的编码器。离散模块包括多个重入点和出口点，可以通过软件进行增强的控制。该软件可以在编码过程中控制分立模块，并根据CPU带宽和/或用户要求进行调整，从而实现增强的质量控制和无缝的硬件/软件操作。在一个实施例中，将媒体流接收到包括用于编码的多个硬件级的流水线的编码器中。将中间结果从至少一个硬件级提供给编码控制模块，该编码控制模块处理中间结果以确定流水线中下一个硬件级的配置指令。因此，当媒体流通过编码器的流水线进行时，可以通过硬件和软件交互来动态地修改编码过程。

56. 发明申请

US20090279605A1 ENCODING STREAMING MEDIA AS A HIGH BIT RATE LAYER, A LOW BIT RATE LAYER, AND ONE OR MORE INTERMEDIATE BIT RATE LAYERS 有权
标题翻译：编码流媒体作为高比特率层，低比特率层，以及一个或多个中间比特速率层
公开(公告)号：US20090279605A1
公开(公告)日：2009-11-12
申请号：US12116878
申请日：2008-05-07
申请人： Thomas W. Holcomb , Sanjeev Mehrotra , Serge Smirnov , Bharath Siravara
发明人： Thomas W. Holcomb , Sanjeev Mehrotra , Serge Smirnov , Bharath Siravara
IPC分类号： H04N7/26
CPC分类号： H04N19/34 , H04N19/114 , H04N19/115 , H04N19/124 , H04N19/14 , H04N19/147 , H04N19/164 , H04N19/166 , H04N19/179 , H04N19/187
摘要： A method of encoding an input video stream comprising a video component and an audio component is disclosed. The input video stream is split into a plurality of segments, each comprising a plurality of frames. Each of the segments is encoded as a low bit rate layer, a high bit rate layer, and one or more intermediate bit rate layers. The bit rate of the low bit rate layer is selected such that a network streaming the segment will always be able to stream the segment encoded as the low bit rate layer. The bit rate of the high bit rate layer is selected such that the segment is able to be decoded and played back at or above a quality threshold. The bit rates of the intermediate bit rate layers are produced by applying a bit rate factor to another bit rate.
摘要翻译：公开了一种编码包括视频分量和音频分量的输入视频流的方法。输入视频流被分割成多个段，每个段包括多个帧。每个段被编码为低比特率层，高比特率层和一个或多个中间比特率层。选择低比特率层的比特率，使得流分段的网络将总是能够将编码为低比特率层的段流传输。选择高比特率层的比特率使得该片段能够在质量阈值以上或高于质量阈值时被解码和回放。中间比特率层的比特率通过将比特率因子应用于另一个比特率来产生。

57. 发明授权

US07577200B2 Extended range variable length coding/decoding of differential motion vector information 有权
标题翻译：差分运动矢量信息的扩展范围可变长度编码/解码
公开(公告)号：US07577200B2
公开(公告)日：2009-08-18
申请号：US10960373
申请日：2004-10-06
申请人： Thomas W. Holcomb , Sridhar Srinivasan
发明人： Thomas W. Holcomb , Sridhar Srinivasan
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04B1/66
CPC分类号： H04N19/16 , H04N19/137 , H04N19/196 , H04N19/46 , H04N19/51 , H04N19/61 , H04N19/70
摘要： Techniques and tools for extended range variable length coding and decoding of differential motion vector information are described. For example, a video decoder determines whether or not to use an extended range variable length decoding mode. When the extended range variable length decoding mode is used, the decoder decodes a differential motion vector in the extended range variable length decoding mode. Otherwise, the decoder decodes the differential motion vector in a default range variable length decoding mode. A video encoder performs corresponding processing.
摘要翻译：描述用于差分运动矢量信息的扩展范围可变长度编码和解码的技术和工具。例如，视频解码器确定是否使用扩展范围可变长度解码模式。当使用扩展范围可变长度解码模式时，解码器解码扩展范围可变长度解码模式中的差分运动矢量。否则，解码器以默认范围可变长度解码模式解码差分运动矢量。视频编码器执行相应的处理。

58. 发明授权

US07379496B2 Multi-resolution video coding and decoding 有权
标题翻译：多分辨率视频编解码
公开(公告)号：US07379496B2
公开(公告)日：2008-05-27
申请号：US10644258
申请日：2003-08-19
申请人： Thomas W. Holcomb , Shankar Regunathan , Chih-Lung Bruce Lin , Sridhar Srinivasan
发明人： Thomas W. Holcomb , Shankar Regunathan , Chih-Lung Bruce Lin , Sridhar Srinivasan
IPC分类号： H04N7/12
CPC分类号： H04N19/527 , H04N19/59 , H04N19/86
摘要： A video encoder performs multi-resolution video coding. For example, the encoder adaptively changes frame sizes to reduce blocking artifacts at low bitrates. A video decoder performs corresponding multi-resolution decoding.
摘要翻译：视频编码器执行多分辨率视频编码。例如，编码器自适应地改变帧大小以减少低比特率下的块伪影。视频解码器执行相应的多分辨率解码。

59. 发明授权

US07852919B2 Field start code for entry point frames with predicted first field 有权
标题翻译：具有预测第一个字段的入口点帧的现场起始码
公开(公告)号：US07852919B2
公开(公告)日：2010-12-14
申请号：US10989596
申请日：2004-11-15
申请人： Regis J. Crinon , Thomas W. Holcomb , Shankar Regunathan , Sridhar Srinivasan
发明人： Regis J. Crinon , Thomas W. Holcomb , Shankar Regunathan , Sridhar Srinivasan
IPC分类号： H04N7/32 , H04N3/10
CPC分类号： H04N19/44 , H04N19/70
摘要： A decoder receives a field start code for an entry point key frame. The field start code indicates a second coded interlaced video field in the entry point key frame following a first coded interlaced video field in the entry point key frame and indicates a point to begin decoding of the second coded interlaced video field. The first coded interlaced video field is a predicted field, and the second coded interlaced video field is an intra-coded field. The decoder decodes the second field without decoding the first field. The field start code can be followed by a field header. The decoder can receive a frame header for the entry point key frame. The frame header may comprise a syntax element indicating a frame coding mode for the entry point key frame and/or a syntax element indicating field types for the first and second coded interlaced video fields.
摘要翻译：解码器接收入口点关键帧的场起始码。场起始码指示入口点关键帧中的第一编码隔行扫描视频字段之后的入口点关键帧中的第二编码隔行扫描视频字段，并且指示开始对第二编码交错视频字段进行解码的点。第一编码隔行视频字段是预测字段，第二编码隔行视频字段是帧内编码字段。解码器解码第二场而不解码第一场。字段起始码可以后跟一个字段标题。解码器可以接收入口点关键帧的帧头。帧头可以包括指示用于入口点关键帧的帧编码模式的语法元素和/或指示第一和第二编码隔行视频字段的字段类型的语法元素。

60. 发明授权

US07733962B2 Reconstructed frame caching 失效
标题翻译：重构帧缓存
公开(公告)号：US07733962B2
公开(公告)日：2010-06-08
申请号：US10730534
申请日：2003-12-08
申请人： Rebecca C. Weiss , Geoffrey T. Dunbar , Niranjan S. Nayak , Sohail Baig Mohammed , Thomas W. Holcomb , Chih-lung Bruce Lin , Olivier Colle , Gareth Alan Howell
发明人： Rebecca C. Weiss , Geoffrey T. Dunbar , Niranjan S. Nayak , Sohail Baig Mohammed , Thomas W. Holcomb , Chih-lung Bruce Lin , Olivier Colle , Gareth Alan Howell
IPC分类号： H04N7/12 , H04N7/26
CPC分类号： G11B27/34 , G11B27/105
摘要： Systems and methods for processing input media in a computing device are described. In one aspect, a reconstructed frame is cached according to a set of criteria. A request to scrub to a predictive frame of input media is received. Responsive to receiving the request, the predictive frame is decoded starting with the reconstructed frame.
摘要翻译：描述了用于在计算设备中处理输入介质的系统和方法。在一个方面，根据一组标准来缓存重建的帧。接收到擦除输入媒体的预测帧的请求。响应于接收请求，从重构帧开始解码预测帧。

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