专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08542726B2 Directional and motion-compensated discrete cosine transformation 有权
标题翻译：定向和运动补偿离散余弦变换
公开(公告)号：US08542726B2
公开(公告)日：2013-09-24
申请号：US11550251
申请日：2006-10-17
申请人： Jizheng Xu , Feng Wu , Hao Xu
发明人： Jizheng Xu , Feng Wu , Hao Xu
IPC分类号： H04N11/02
CPC分类号： G06F17/147 , H04N19/51
摘要： Systems and methods provide directional discrete cosine transformation (DCT) and motion compensated DCT. In one implementation, an exemplary system finds a directional property of an image, such as a visual trend, factorizes a DCT operation into primal operations, and applies the primal operations along a corresponding direction to perform the DCT. Motion compensated DCT applies the primal operations along a motion trajectory of a video sequence. When the directional DCT is applied blockwise, the directional coding modes for adjacent blocks can be optimized in view of each other using a weighted graph to represent the related coding mode decisions.
摘要翻译：系统和方法提供定向离散余弦变换（DCT）和运动补偿DCT。在一个实现中，示例性系统找到诸如视觉趋势的图像的方向属性将DCT运算分解为原始操作，并且沿着相应方向应用原始操作以执行DCT。运动补偿DCT沿着视频序列的运动轨迹应用原始操作。当方向DCT被逐行应用时，相邻块的定向编码模式可以使用加权图来相互比较来优化，以表示相关的编码模式决定。

2. 发明申请

US20080089409A1 Directional And Motion-Compensated Discrete Cosine Transformation 有权
标题翻译：定向和运动补偿离散余弦变换
公开(公告)号：US20080089409A1
公开(公告)日：2008-04-17
申请号：US11550251
申请日：2006-10-17
申请人： Jizheng Xu , Feng Wu , Hao Xu
发明人： Jizheng Xu , Feng Wu , Hao Xu
IPC分类号： H04N11/04 , H04N7/12
CPC分类号： G06F17/147 , H04N19/51
摘要： Systems and methods provide directional discrete cosine transformation (DCT) and motion compensated DCT. In one implementation, an exemplary system finds a directional property of an image, such as a visual trend, factorizes a DCT operation into primal operations, and applies the primal operations along a corresponding direction to perform the DCT. Motion compensated DCT applies the primal operations along a motion trajectory of a video sequence. When the directional DCT is applied blockwise, the directional coding modes for adjacent blocks can be optimized in view of each other using a weighted graph to represent the related coding mode decisions.
摘要翻译：系统和方法提供定向离散余弦变换（DCT）和运动补偿DCT。在一个实现中，示例性系统找到诸如视觉趋势的图像的方向属性将DCT运算分解为原始操作，并且沿着相应方向应用原始操作以执行DCT。运动补偿DCT沿着视频序列的运动轨迹应用原始操作。当方向DCT被逐行应用时，相邻块的定向编码模式可以使用加权图来相互比较来优化，以表示相关的编码模式决定。

3. 发明授权

US10506254B2 Features of base color index map mode for video and image coding and decoding 有权
公开(公告)号：US10506254B2
公开(公告)日：2019-12-10
申请号：US15025134
申请日：2013-10-14
申请人： Microsoft Technology Licensing, LLC , Bin Li , Feng Wu , Jizheng Xu
发明人： Bin Li , Feng Wu , Jizheng Xu
IPC分类号： H04N19/593 , H04N19/70 , H04N19/126 , H04N19/61 , H04N19/176 , H04N19/11 , H04N19/154
CPC分类号： H04N19/593 , H04N19/126 , H04N19/70 , H04N19/11 , H04N19/154 , H04N19/176 , H04N19/61
摘要： Innovations in the use of base color index map (“BCIM”) mode during encoding and/or decoding simplify implementation by reducing the number of modifications made to support BCIM mode and/or improve coding efficiency of BCIM mode. For example, some of the innovations involve reuse of a syntax structure that is adapted for transform coefficients to instead signal data for elements of an index map in BCIM mode. Other innovations relate to mapping of index values in BCIM mode or prediction of elements of an index map in BCIM mode. Still other innovations relate to handling of exception values in BCIM mode.

4. 发明申请

US20160277761A1 ENCODER-SIDE DECISIONS FOR BLOCK FLIPPING AND SKIP MODE IN INTRA BLOCK COPY PREDICTION 审中-公开
标题翻译：用于块内移动的编码器决策和内部块复制预测中的跳过模式
公开(公告)号：US20160277761A1
公开(公告)日：2016-09-22
申请号：US15029585
申请日：2014-03-04
申请人： Bin LI , Jizheng XU , Feng WU , MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： Bin Li , Jizheng Xu , Feng Wu
IPC分类号： H04N19/593 , H04N19/126 , H04N19/61 , H04N19/105 , H04N19/176
CPC分类号： H04N19/593 , H04N19/105 , H04N19/124 , H04N19/126 , H04N19/132 , H04N19/176 , H04N19/61
摘要： Innovations in the area of encoding blocks using hash-based block matching improve coding efficiency in many situations. For example, some of the innovations relate to encoder-side decisions about when to use block flipping during prediction. Other innovations relate to encoder-side decisions about when to use skip mode for a block predicted using intra block copy (“BC”) prediction.
摘要翻译：使用基于散列的块匹配的编码块区域的创新在许多情况下提高了编码效率。例如，一些创新与编码器方面的决策有关何时在预测期间使用块翻转。其他创新涉及关于何时使用跳过模式对使用块内复制（“BC”）预测预测的块的编码器方面的决策。

5. 发明申请

US20160277733A1 HASH TABLE CONSTRUCTION AND AVAILABILITY CHECKING FOR HASH-BASED BLOCK MATCHING 审中-公开
标题翻译：用于基于HASH的块匹配的HASH表结构和可用性检查
公开(公告)号：US20160277733A1
公开(公告)日：2016-09-22
申请号：US15029589
申请日：2014-03-04
申请人： Bin LI , Jizheng XU , Feng WU , MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： Bin Li , Jizheng Xu , Feng Wu
IPC分类号： H04N19/105 , H04N19/96 , H04N19/593 , H04N19/176 , H04N19/91
摘要： Innovations in the areas of hash table construction and availability checking reduce computational complexity of hash-based block matching. For example, some of the innovations speed up the process of constructing a hash table or reduce the size of a hash table. This can speed up and reduce memory usage for hash-based block matching within a picture (for block vector estimation) or between different pictures (for motion estimation). Other innovations relate to availability checking during block vector estimation that uses a hash table.
摘要翻译：哈希表构建和可用性检查领域的创新降低了基于哈希的块匹配的计算复杂性。例如，一些创新加快构建散列表的过程或减少散列表的大小。这可以加快和减少图像内的基于散列的块匹配（用于块向量估计）或不同图像之间（用于运动估计）的存储器使用。其他创新涉及使用哈希表的块向量估计期间的可用性检查。

6. 发明授权

US09031129B2 Joint spatio-temporal prediction for video coding 有权
标题翻译：视频编码的联合时空预测
公开(公告)号：US09031129B2
公开(公告)日：2015-05-12
申请号：US11763955
申请日：2007-06-15
申请人： Jizheng Xu , Feng Wu
发明人： Jizheng Xu , Feng Wu
IPC分类号： H04B1/66 , H04N11/02 , H04N19/577 , H04N19/63 , H04N19/61 , H04N19/593
CPC分类号： H04N19/577 , H04N19/593 , H04N19/61 , H04N19/63
摘要： Systems and methods are described for joint spatio-temporal prediction (JSTP) during video coding. A given block of pixels is simultaneously predicted via inter frame prediction and intra frame prediction. The joint spatio-temporal prediction provides a new JSTP coding mode besides inter and intra modes in coding schemata such as the H.264/AVC video coding standard. In one implementation, subband decomposition obtains a high-pass component of inter frame prediction of a block and a low-pass component of intra frame prediction of the same block. The high-pass component of the inter prediction and the low-pass component of the intra prediction are combined to produce the joint spatio-temporal prediction. In one implementation, a difference between the original block and the JSTP prediction is coded in a bitstream to represent the block.
摘要翻译：在视频编码期间描述了联合时空预测（JSTP）的系统和方法。通过帧间预测和帧内预测同时预测给定的像素块。联合时空预测除H.264 / AVC视频编码标准等编码模式之外，还提供了除了帧内和模式之外的新的JSTP编码模式。在一个实现中，子带分解获得块的帧间预测的高通分量和同一块的帧内预测的低通分量。帧内预测的高通分量和帧内预测的低通分量被组合以产生联合时空预测。在一个实现中，原始块和JSTP预测之间的差异被编码在比特流中以表示块。

7. 发明申请

US20120287999A1 SYNTAX ELEMENT PREDICTION IN ERROR CORRECTION 审中-公开
标题翻译：误差校正中的语音元素预测
公开(公告)号：US20120287999A1
公开(公告)日：2012-11-15
申请号：US13104990
申请日：2011-05-11
申请人： Bin Li , Jizheng Xu , Feng Wu
发明人： Bin Li , Jizheng Xu , Feng Wu
IPC分类号： H04N7/68 , H04N7/26
CPC分类号： H04N19/895 , H04N19/46 , H04N19/52 , H04N19/89
摘要： Architecture that improves error robustness in video coding and decoding. In particular, this can apply to motion vector prediction (MVP) such as a temporal MVP (TMVP). Flags can be used to indicate the use or non-use of a feature, such as to indicate whether the current slice uses or does not use TMVP, and to indicate in the slice header whether list prediction is allowed or not allowed. A flag can be signaled in sequence parameter set (SPS) or picture parameter set (PPS) as a way to enable an entire sequence to use or not use TMVP. TVMP can also be used to copy all the reference motion information to the current block. To address possible error problems, the full index of the TMVP can be recorded, and temporal information decoding refresh (TIDR) can be inserted into slices periodically.
摘要翻译：提高视频编码和解码中的错误鲁棒性的体系结构。特别地，这可以应用于诸如时间MVP（TMVP）的运动矢量预测（MVP）。标志可用于指示特征的使用或不使用，例如指示当前切片是使用还是不使用TMVP，以及在切片报头中指示允许还是不允许列表预测。可以在序列参数集（SPS）或图片参数集（PPS）中用信号通知标志，以使整个序列能够使用或不使用TMVP。 TVMP也可用于将所有参考运动信息复制到当前块。为了解决可能的错误问题，可以记录TMVP的完整索引，并且周期性地将时间信息解码刷新（TIDR）插入片中。

8. 发明授权

US08130830B2 Enhancement layer switching for scalable video coding 有权
标题翻译：用于可扩展视频编码的增强层交换
公开(公告)号：US08130830B2
公开(公告)日：2012-03-06
申请号：US12112821
申请日：2008-04-30
申请人： Jizheng Xu , Feng Wu , Shipeng Li
发明人： Jizheng Xu , Feng Wu , Shipeng Li
IPC分类号： H04N7/12 , H04N11/02
CPC分类号： H04N21/2662 , H04N19/115 , H04N19/164 , H04N19/187 , H04N19/34 , H04N19/37 , H04N19/61 , H04N19/70 , H04N21/234327 , H04N21/2402 , H04N21/8451
摘要： An exemplary system includes a data encoder generating a base layer bitstream encoded at a base bit-rate, and a plurality of enhancement layer bitstreams encoded at different enhancement layer bit-rates, and a bitstream selection module selecting one of the enhancement layer bitstreams every video frame based on available channel bandwidth. A method includes transmitting a first enhancement layer bitstream encoded at a first bit-rate, detecting a transition in network bandwidth through a switching bit-rate, and transmitting a second enhancement layer bitstream encoded at a second bit-rate based on the transition in network bandwidth.
摘要翻译：一个示例性系统包括产生以基本比特率编码的基本层比特流的数据编码器和以不同增强层比特率编码的多个增强层比特流，以及比特流选择模块，每个视频选择增强层比特流之一基于可用信道带宽的帧。一种方法包括发送以第一比特率编码的第一增强层比特流，通过切换比特率检测网络带宽中的转换，以及基于网络中的转换来发送以第二比特率编码的第二增强层比特流带宽。

9. 发明申请

US20060153465A1 In-band wavelet video coding with spatial scalability 有权
标题翻译：具有空间可扩展性的带内小波视频编码
公开(公告)号：US20060153465A1
公开(公告)日：2006-07-13
申请号：US11203817
申请日：2005-08-15
申请人： Dongdong Zhang , Feng Wu , Jizheng Xu
发明人： Dongdong Zhang , Feng Wu , Jizheng Xu
IPC分类号： G06K9/46 , G06K9/36
CPC分类号： H04N19/615 , H04N19/105 , H04N19/13 , H04N19/147 , H04N19/523 , H04N19/61 , H04N19/63
摘要： Exemplary improvements for in-band wavelet video coding with spatial scalability are described. In one implementation an encoder uses leaky prediction to balance a trade-off between reducing drifting errors at lower resolutions while maintaining coding performance at higher resolutions. In an alternative implementation, a trade-off technique defines two coding modes at the macroblock level. The first mode includes predictions employed at a low quality reference while the second mode includes predictions employed at a high quality reference. The method then adaptively selects the proper coding mode for each macroblock according to a rate-distortion criterion.
摘要翻译：描述了具有空间可伸缩性的带内小波视频编码的示例性改进。在一个实现中，编码器使用泄漏预测来平衡在较低分辨率下减少漂移误差之间的折衷，同时保持较高分辨率下的编码性能。在替代实现中，权衡技术定义了宏块级的两种编码模式。第一模式包括在低质量参考下使用的预测，而第二模式包括在高质量参考下使用的预测。然后，该方法根据速率失真准则自适应地选择每个宏块的适当编码模式。

10. 发明申请

US20060008003A1 Embedded base layer codec for 3D sub-band coding 有权
标题翻译：用于3D子带编码的嵌入式基层编解码器
公开(公告)号：US20060008003A1
公开(公告)日：2006-01-12
申请号：US11126650
申请日：2005-05-10
申请人： Xiangyang Ji , Jizheng Xu , Feng Wu
发明人： Xiangyang Ji , Jizheng Xu , Feng Wu
IPC分类号： H04B1/66 , H04N11/02 , H04N11/04 , H04N7/12
CPC分类号： H04N19/61 , H04N19/13 , H04N19/615 , H04N19/619 , H04N19/62 , H04N19/63
摘要： Techniques and tools are described for scalable video coding and decoding. For example, a 3D sub-band video encoder includes an embedded base layer codec as well as temporal sub-band transforms and spatial sub-band transforms. The placement of the base layer codec among the sub-band transforms and the role of the base layer codec in scalable video coding vary depending on implementation. In general, the base layer codec provides efficient compression at low bit rates and produces a base layer compressed video bit stream compatible with existing decoders. At the same time, the 3D sub-band video encoder provides spatial and temporal scalability options at higher bit rates, refining the base layer video. A corresponding 3D sub-band video decoder includes an embedded base layer decoder.
摘要翻译：描述了可扩展视频编码和解码的技术和工具。例如，3D子带视频编码器包括嵌入式基层编解码器以及时间子带变换和空间子带变换。基带编解码器在子带变换中的布置以及基础层编解码器在可伸缩视频编码中的作用根据实现而有所不同。通常，基层编解码器以低比特率提供有效的压缩，并产生与现有解码器兼容的基本层压缩视频比特流。同时，3D子带视频编码器以更高的比特率提供空间和时间的可扩展性选项，从而改善基本层视频。相应的3D子带视频解码器包括嵌入式基本层解码器。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式