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71. 发明申请

US20070211798A1 Method And Apparatus For Complexity Scalable Video Decoder 有权
标题翻译：复杂度可视化解码器的方法和装置
公开(公告)号：US20070211798A1
公开(公告)日：2007-09-13
申请号：US10593915
申请日：2005-03-31
申请人： Jill Boyce , Alexandros Tourapis
发明人： Jill Boyce , Alexandros Tourapis
IPC分类号： H04N11/02 , H04N7/12
CPC分类号： H04N19/59 , H04N19/33 , H04N19/523 , H04N19/61
摘要： A video decoder, a video decoding method, a video encoder and a video encoding method are disclosed. A video decoder for decoding a video bitstream for an image block includes a motion vector resolution reducer and a motion compensator. The motion vector resolution reducer is for receiving decoded high resolution motion vectors included in the video bitstream and for reducing an accuracy of the high resolution motion vectors to correspond to a low resolution. The motion compensator, in signal communication with the motion vector resolution reducer, is for forming a motion compensated high resolution prediction using the reduced accuracy motion vectors. The video encoder for encoding scalable video comprises a motion compensator for forming a motion compensated full resolution prediction and combining the motion compensated full resolution prediction from an image block to form a prediction residual. The prediction residual is downsampled to form a low resolution downsampled prediction residual and then coded.
摘要翻译：公开了视频解码器，视频解码方法，视频编码器和视频编码方法。用于解码用于图像块的视频位流的视频解码器包括运动矢量分辨率降低器和运动补偿器。运动矢量分辨率降低器用于接收包括在视频比特流中的解码的高分辨率运动矢量，并且用于降低高分辨率运动矢量的精度以对应于低分辨率。与运动矢量分辨率降低器进行信号通信的运动补偿器用于使用精度较低的运动矢量形成运动补偿的高分辨率预测。用于编码可伸缩视频的视频编码器包括运动补偿器，用于形成运动补偿全分辨率预测，并组合来自图像块的运动补偿全分辨率预测以形成预测残差。预测残差被下采样以形成低分辨率下采样预测残差，然后被编码。

72. 发明申请

US20070189392A1 Reduced resolution update mode for advanced video coding 审中-公开
标题翻译：降低分辨率更新模式，用于高级视频编码
公开(公告)号：US20070189392A1
公开(公告)日：2007-08-16
申请号：US10591939
申请日：2005-03-01
申请人： Alexandros Tourapis , Jill Macdonald Boyce
发明人： Alexandros Tourapis , Jill Macdonald Boyce
IPC分类号： H04N11/02 , H04B1/66
CPC分类号： H04N19/59 , H04N19/117 , H04N19/129 , H04N19/132 , H04N19/136 , H04N19/16 , H04N19/174 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/51 , H04N19/61 , H04N19/70 , H04N19/82 , H04N19/86
摘要： There is provided a video encoder, video decoder and corresponding encoding and decoding methods for respectively encoding and decoding video signal data for an image slice. The video encoder includes a slice prediction residual downsampler for downsampling a prediction residual of at least a portion of the image slice prior to transformation and quantization of the prediction residual. The video decoder includes a prediction residual upsampler for upsampling a prediction residual of the image slice.
摘要翻译：提供了一种用于分别对图像切片的视频信号数据进行编码和解码的视频编码器，视频解码器和相应的编码和解码方法。视频编码器包括用于在变换和预测残差的量化之前对图像片段的至少一部分的预测残差进行下采样的片预测残差下采样器。视频解码器包括用于对图像切片的预测残差进行上采样的预测残差上采样器。

73. 发明申请

US20070127577A1 Device and method for fast sub sample block-matching motion estimation in video encoders 有权
标题翻译：视频编码器中快速子采样块匹配运动估计的装置和方法
公开(公告)号：US20070127577A1
公开(公告)日：2007-06-07
申请号：US11598976
申请日：2006-11-14
申请人： Alexandros Tourapis , Pankaj Topiwala
发明人： Alexandros Tourapis , Pankaj Topiwala
IPC分类号： H04N11/02 , H04N11/04
CPC分类号： H04N19/557 , H04N19/523 , H04N19/53 , H04N19/533 , H04N19/56 , H04N19/61
摘要： Motion Estimation is one of the most computationally complex processes within a video encoding system. Several Fast Integer Sample Motion Estimation schemes are introduced to reduce complexity of considering integer positions during motion estimation. However, after making such considerations fractional sample motion vector refinement becomes instead the greatest bottleneck for video encoding. Accordingly, algorithms that can reduce such complexity, with little impact in quality, are required and are also disclosed herein.
摘要翻译：运动估计是视频编码系统中计算量最大的过程之一。引入几个快速整数采样运动估计方案，以降低在运动估计过程中考虑整数位置的复杂性。然而，在做出这样的考虑之后，分数样本运动矢量细化成为视频编码的最大瓶颈。因此，需要能够降低这种复杂性，质量影响很小的算法，并且也在此公开。

74. 发明申请

US20070058866A1 Technique for bit-accurate comfort noise addition 有权
标题翻译：比特精确的舒适噪音加法技术
公开(公告)号：US20070058866A1
公开(公告)日：2007-03-15
申请号：US10575501
申请日：2004-10-12
申请人： Jill Boyce , Cristina Gomila , Joan Llach , Alexandros Tourapis , Jeffrey Cooper , Peng Yin
发明人： Jill Boyce , Cristina Gomila , Joan Llach , Alexandros Tourapis , Jeffrey Cooper , Peng Yin
IPC分类号： G06K9/00
CPC分类号： H04N5/262 , G06T5/002 , G06T5/20 , G06T2207/10016 , G06T2207/20204 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/46 , H04N19/85 , H04N19/86
摘要： The addition of comfort noise to an image serves to hide compression artifacts. To facilitate comfort noise addition, supplemental information accompanying a video image contains at least one parameter that specifies an attribute regarding comfort noise. Typically, the supplemental information includes parameters that function to turn the comfort noise on and off, as well as to indicate the level of noise to add, based on the expected level of compression artifacts.
摘要翻译：向图像添加舒适噪声用于隐藏压缩伪影。为了促进舒适噪声添加，附带视频图像的补充信息包含至少一个指定关于舒适噪声的属性的参数。通常，补充信息包括用于打开和关闭舒适噪声的参数，以及基于预期的压缩伪像水平来指示要添加的噪声的水平。

75. 发明申请

US20070014358A1 Spatiotemporal prediction for bidirectionally predictive(B) pictures and motion vector prediction for multi-picture reference motion compensation 有权
标题翻译：用于双向参考运动补偿的双向预测（B）图像和运动矢量预测的时空预测
公开(公告)号：US20070014358A1
公开(公告)日：2007-01-18
申请号：US11525059
申请日：2006-09-20
申请人： Alexandros Tourapis , Shipeng Li , Feng Wu
发明人： Alexandros Tourapis , Shipeng Li , Feng Wu
IPC分类号： H04N11/04 , H04N11/02
CPC分类号： H04N19/577 , H04N19/102 , H04N19/105 , H04N19/107 , H04N19/137 , H04N19/142 , H04N19/176 , H04N19/51 , H04N19/513 , H04N19/52 , H04N19/56 , H04N19/573 , H04N19/58 , H04N19/593 , H04N19/61 , H04N19/87
摘要： Several improvements for use with Bidirectionally Predictive (B) pictures within a video sequence are provided. In certain improvements Direct Mode encoding and/or Motion Vector Prediction are enhanced using spatial prediction techniques. In other improvements Motion Vector prediction includes temporal distance and subblock information, for example, for more accurate prediction. Such improvements and other presented herein significantly improve the performance of any applicable video coding system/logic.
摘要翻译：提供了一些与视频序列中的双向预测（B）图像一起使用的改进。在某些改进中，使用空间预测技术来增强直接模式编码和/或运动矢量预测。在其他改进中，运动矢量预测包括时间距离和子块信息，例如用于更准确的预测。这样的改进和其它呈现显着改善了任何适用的视频编码系统/逻辑的性能。

76. 发明申请

US20060294171A1 Method and apparatus for video encoding and decoding using adaptive interpolation 有权
标题翻译：使用自适应插值的视频编码和解码方法和装置
公开(公告)号：US20060294171A1
公开(公告)日：2006-12-28
申请号：US11452043
申请日：2006-06-12
申请人： Frank Bossen , Alexandros Tourapis
发明人： Frank Bossen , Alexandros Tourapis
IPC分类号： G06F17/10
CPC分类号： H04N19/577 , H04N19/117 , H04N19/139 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/33 , H04N19/463 , H04N19/523 , H04N19/59
摘要： A method and apparatus is disclosed herein for video encoding and/or decoding using adaptive interpolation is described. In one embodiment, the decoding method comprises decoding a reference index; decoding a motion vector; selecting a reference frame according to the reference index; selecting a filter according to the reference index; and filtering a set of samples of the reference frame using the filter to obtain the predicted block, wherein the set of samples of the reference frame is determined by the motion vector.
摘要翻译：本文公开了一种用于使用自适应插值的视频编码和/或解码的方法和装置。在一个实施例中，解码方法包括解码参考索引; 解码运动矢量; 根据参考索引选择参考帧; 根据参考索引选择一个过滤器; 以及使用所述滤波器对所述参考帧的一组样本进行滤波以获得所述预测块，其中，所述参考帧的样本集由所述运动矢量确定。

77. 发明申请

US20060291557A1 Adaptive reference picture generation 有权
标题翻译：自适应参考图像生成
公开(公告)号：US20060291557A1
公开(公告)日：2006-12-28
申请号：US10569695
申请日：2004-09-02
申请人： Alexandros Tourapis
发明人： Alexandros Tourapis
IPC分类号： H04N7/12 , H04N11/04 , H04B1/66 , H04N11/02
CPC分类号： H04N19/85 , H04N19/46 , H04N19/61 , H04N19/82
摘要： A video encoder and corresponding method are provided for encoding an input picture or image block using a prediction from a reference-only picture, where the encoder includes a picture buffer for storing a previously coded picture, and a reference processing unit in signal communication with the picture buffer for generating the reference-only picture from a previously coded picture; and the corresponding method includes receiving a substantially uncompressed image block, filtering a previously coded picture to create an adaptive reference, motion compensating the adaptive reference, subtracting the motion compensated adaptive reference from the substantially uncompressed image block, and encoding the difference between the substantially uncompressed image block and the motion compensated adaptive reference. Video decoder and corresponding method are also disclosed.
摘要翻译：提供了一种视频编码器和相应的方法，用于使用来自参考图像的预测对输入图像或图像块进行编码，其中编码器包括用于存储先前编码的图像的图像缓冲器，以及参考处理单元，与基准处理单元进行信号通信图像缓冲器，用于从先前编码的图像生成仅参考图像; 并且相应的方法包括接收基本上未压缩的图像块，过滤先前编码的图像以创建自适应参考，补偿自适应参考的运动，从基本上未压缩的图像块中减去运动补偿的自适应参考，以及对基本上未压缩的图像块和运动补偿自适应参考。还公开了视频解码器和相应的方法。

78. 发明申请

US20060140276A1 Encoding method and apparatus enabling fast channel change of compressed video 有权
标题翻译：能够实现压缩视频的快速通道改变的编码方法和装置
公开(公告)号：US20060140276A1
公开(公告)日：2006-06-29
申请号：US10560477
申请日：2004-06-15
申请人： Jill Boyce , Alexandros Tourapis , Jeffrey Cooper
发明人： Jill Boyce , Alexandros Tourapis , Jeffrey Cooper
IPC分类号： H04N11/02 , H04N7/12 , H04N11/04 , H04B1/66
CPC分类号： H04N19/44 , H04N5/4401 , H04N5/50 , H04N19/00 , H04N19/105 , H04N19/107 , H04N19/132 , H04N19/159 , H04N19/162 , H04N19/172 , H04N19/174 , H04N19/33 , H04N19/39 , H04N19/527 , H04N19/573 , H04N19/58 , H04N19/587 , H04N19/59 , H04N19/61 , H04N19/70 , H04N19/86 , H04N21/234363 , H04N21/234381 , H04N21/23439 , H04N21/2365 , H04N21/2662 , H04N21/4347 , H04N21/4384 , H04N21/440263 , H04N21/440281 , H04N21/4621 , H04N21/8451
摘要： A video encoder and corresponding method are described for enabling fast channel change of compressed video, where a video encoder for receiving input pictures and providing compressed stream data includes a normal encoding portion for receiving input pictures and providing normal stream data, a lower-quality encoding portion for receiving input pictures and providing channel change stream data, and a multiplexor in signal communication with each of the normal and lower-quality portions for receiving and combining the normal and channel change data streams.
摘要翻译：描述了用于实现压缩视频的快速通道改变的视频编码器和相应方法，其中用于接收输入图像并提供压缩流数据的视频编码器包括用于接收输入图像并提供正常流数据的正常编码部分，较低质量编码用于接收输入图像和提供频道改变流数据的部分，以及与正常和低质量部分中的每一个进行信号通信的多路复用器，用于接收和组合正常和频道改变数据流。

79. 发明授权

US06842483B1 Device, method and digital video encoder for block-matching motion estimation 失效
标题翻译：用于块匹配运动估计的装置，方法和数字视频编码器
公开(公告)号：US06842483B1
公开(公告)日：2005-01-11
申请号：US09659597
申请日：2000-09-11
申请人： Oscar Chi-Lim Au , Ming Lei Liou , Alexandros Tourapis , Guobin Shen
发明人： Oscar Chi-Lim Au , Ming Lei Liou , Alexandros Tourapis , Guobin Shen
IPC分类号： H04N7/12 , H04N7/26
CPC分类号： H04N19/57 , H04N19/533 , H04N19/557
摘要： A device or method for video compression uses a technique in which changes in the image are encoded by motions of block of the image and signals indicating evolutions in the block. To determine the motions of the blocks of a each frame, a search is performed for a similar block of a previous frame based on points of the previous frame which are arranged in successive diamond shaped zones. The diamond shaped zones may be centred on the position of the block in previous frame, or one or more predicted motions of the block. The method terminates according to criteria defined using thresholds.
摘要翻译：用于视频压缩的设备或方法使用这样一种技术，其中通过图像块的运动和指示块中的演化的信号对图像的改变进行编码。为了确定每帧的块的运动，基于布置在连续菱形区域中的先前帧的点，针对先前帧的相似块执行搜索。菱形区域可以在前一帧中的块的位置上居中，或者块的一个或多个预测的运动。该方法根据使用阈值定义的标准终止。

80. 发明授权

US09729888B2 Speedup techniques for rate distortion optimized quantization 有权
公开(公告)号：US09729888B2
公开(公告)日：2017-08-08
申请号：US13394793
申请日：2010-09-07
申请人： Yan Ye , Alexandros Tourapis
发明人： Yan Ye , Alexandros Tourapis
IPC分类号： H04N7/26 , H04N19/192 , H04N19/196 , H04N19/176 , H04N19/147 , H04N19/122 , H04N19/61 , H04N19/11 , H04N19/107 , H04N19/109 , H04N19/126 , H04N19/132 , H04N19/174 , H04N19/17 , H04N19/19
CPC分类号： H04N19/192 , H04N19/107 , H04N19/109 , H04N19/11 , H04N19/122 , H04N19/124 , H04N19/126 , H04N19/132 , H04N19/147 , H04N19/17 , H04N19/174 , H04N19/176 , H04N19/19 , H04N19/196 , H04N19/197 , H04N19/61
摘要： Techniques for selecting a coding mode for an image coding process are described. Coding modes can be selected through a coding mode transition state machine, a re-quantization process, selection of an optimal transform size, by skipping some quantization parameters, or by performing motion search.

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