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1. 发明授权

US07388521B2 Request bits estimation for a Wyner-Ziv codec 有权
标题翻译：为Wyner-Ziv编解码器请求比特估计
公开(公告)号：US07388521B2
公开(公告)日：2008-06-17
申请号：US11537947
申请日：2006-10-02
申请人： Yan Lu , Mei Guo , Feng Wu , Shipeng Li
发明人： Yan Lu , Mei Guo , Feng Wu , Shipeng Li
IPC分类号： H03M7/34
CPC分类号： H03M7/30 , H04N19/395
摘要： Request bits estimation for a Wyner-Ziv codec is described. In one aspect, and prior to communicating Wyner-Ziv parity bits to a Wyner-Ziv decoder, an estimated total number of parity bits to send to the Wyner-Ziv decoder are determined. This estimated number of parity bits allows the Wyner-Ziv decoder to reconstruct a frame of different coded content using the Wyner-Ziv parity bits such that the reconstructed frame will meet particular quality criteria. This estimated number of parity bits is determined independent of a request-bits feedback loop between the Wyner-Ziv coder and the Wyner-Ziv decoder. The estimated number of parity bits is communicated to the Wyner-Ziv decoder for reconstruction and presentation of the frame to a user.
摘要翻译：描述了Wyner-Ziv编解码器的请求比特估计。在一个方面中，并且在将Wyner-Ziv奇偶校验位传送到Wyner-Ziv解码器之前，确定发送到Wyner-Ziv解码器的估计的奇偶校验位数。该估计的奇偶校验位数允许Wyner-Ziv解码器使用Wyner-Ziv奇偶校验位来重建不同编码内容的帧，使得重建的帧将满足特定的质量标准。独立于Wyner-Ziv编码器和Wyner-Ziv解码器之间的请求位反馈环路来确定该估计的奇偶校验位数。将估计的奇偶校验位数传送给Wyner-Ziv解码器，以重构并向用户呈现帧。

2. 发明授权

US08340192B2 Wyner-Ziv coding with multiple side information 有权
标题翻译： Wyner-Ziv编码与多方信息
公开(公告)号：US08340192B2
公开(公告)日：2012-12-25
申请号：US12047317
申请日：2008-03-12
申请人： Yan Lu , Feng Wu , Mei Guo , Shipeng Li
发明人： Yan Lu , Feng Wu , Mei Guo , Shipeng Li
IPC分类号： H04N11/04
CPC分类号： H03M7/30 , H03M13/2957 , H03M13/6312
摘要： A Wyner-Ziv coding scheme jointly utilizes multiple side information at the decoder is described. A new probability model is introduced based on an extended turbo decoding trellis, so that the transitional probability is calculated from the probabilities conditioned on multiple side information. The proposed scheme handles multiple side information in a multi-dimensional manner to potentially achieve coding performance better than either selecting one side information or generating a single side information by averaging several side information. When the decoder receives multiple streams of parity bits, the conditional probabilities on the parity bits from the multiple streams all contribute in turbo decoding. The errors existing in some of the streams can be automatically eliminated during the decoding process.
摘要翻译：描述了在解码器处共同利用多边信息的Wyner-Ziv编码方案。基于扩展turbo解码网格引入新的概率模型，从而根据多边信息的概率计算过渡概率。所提出的方案以多维方式处理多个侧面信息，以便比选择一个侧面信息或通过平均多个边缘信息来生成单个侧面信息来潜在地实现编码性能。当解码器接收到多个奇偶校验位流时，来自多个流的奇偶校验位的条件概率在turbo解码中都有贡献。在解码过程中可以自动消除一些流中存在的错误。

3. 发明申请

US20080079612A1 Request Bits Estimation for a Wyner-Ziv Codec 有权
标题翻译： Wyner-Ziv编解码器的请求位估计
公开(公告)号：US20080079612A1
公开(公告)日：2008-04-03
申请号：US11537947
申请日：2006-10-02
申请人： Yan Lu , Mei Guo , Feng Wu , Shipeng Li
发明人： Yan Lu , Mei Guo , Feng Wu , Shipeng Li
IPC分类号： H03M7/00
CPC分类号： H03M7/30 , H04N19/395
摘要： Request bits estimation for a Wyner-Ziv codec is described. In one aspect, and prior to communicating Wyner-Ziv parity bits to a Wyner-Ziv decoder, an estimated total number of parity bits to send to the Wyner-Ziv decoder are determined. This estimated number of parity bits allows the Wyner-Ziv decoder to reconstruct a frame of different coded content using the Wyner-Ziv parity bits such that the reconstructed frame will meet particular quality criteria. This estimated number of parity bits is determined independent of a request-bits feedback loop between the Wyner-Ziv coder and the Wyner-Ziv decoder. The estimated number of parity bits is communicated to the Wyner-Ziv decoder for reconstruction and presentation of the frame to a user.
摘要翻译：描述了Wyner-Ziv编解码器的请求比特估计。在一个方面中，并且在将Wyner-Ziv奇偶校验位传送到Wyner-Ziv解码器之前，确定发送到Wyner-Ziv解码器的估计的奇偶校验位数。该估计的奇偶校验位数允许Wyner-Ziv解码器使用Wyner-Ziv奇偶校验位来重建不同编码内容的帧，使得重建的帧将满足特定的质量标准。独立于Wyner-Ziv编码器和Wyner-Ziv解码器之间的请求位反馈环路来确定该估计的奇偶校验位数。将估计的奇偶校验位数传送给Wyner-Ziv解码器，以重构并向用户呈现帧。

4. 发明申请

US20090103606A1 Progressive Distributed Video Coding 审中-公开
标题翻译：逐行分布式视频编码
公开(公告)号：US20090103606A1
公开(公告)日：2009-04-23
申请号：US11874092
申请日：2007-10-17
申请人： Yan Lu , Feng Wu , Shipeng Li , Mei Guo
发明人： Yan Lu , Feng Wu , Shipeng Li , Mei Guo
IPC分类号： H04N7/12
CPC分类号： H04N19/63 , H03M7/30
摘要： Progressive distributed video coding is described. In one implementation, video data maybe encoded by arranging the data into bit-planes. The arrangement of bit-planes is adapted by shifting the first non-zero bit-plane left by one place in the binary digits and moving the sign bit immediately in the place vacated by the shifted non-zero bit-plane. The adapted bit-planes are then encoded using an asymmetric Slepian-Wolf encoder.
摘要翻译：描述逐行分布式视频编码。在一个实现中，视频数据可以通过将数据排列成位平面来进行编码。位平面的布置通过将第一个非零位平面向左移位一位置二进制数字并将符号位立即移动到移位的非零位平面放置的位置来进行。然后使用非对称Slepian-Wolf编码器对适配的位平面进行编码。

5. 发明申请

US20080291065A1 Wyner-Ziv Coding with Multiple Side Information 有权
标题翻译： Wyner-Ziv编码与多边信息
公开(公告)号：US20080291065A1
公开(公告)日：2008-11-27
申请号：US12047317
申请日：2008-03-12
申请人： Yan Lu , Feng Wu , Mei Guo , Shipeng Li
发明人： Yan Lu , Feng Wu , Mei Guo , Shipeng Li
IPC分类号： H03M7/00
CPC分类号： H03M7/30 , H03M13/2957 , H03M13/6312
摘要： A Wyner-Ziv coding scheme jointly utilizes multiple side information at the decoder is described. A new probability model is introduced based on an extended turbo decoding trellis, so that the transitional probability is calculated from the probabilities conditioned on multiple side information. The proposed scheme handles multiple side information in a multi-dimensional manner to potentially achieve coding performance better than either selecting one side information or generating a single side information by averaging several side information. When the decoder receives multiple streams of parity bits, the conditional probabilities on the parity bits from the multiple streams all contribute in turbo decoding. The errors existing in some of the streams can be automatically eliminated during the decoding process.
摘要翻译：描述了在解码器处共同利用多边信息的Wyner-Ziv编码方案。基于扩展turbo解码网格引入新的概率模型，从而根据多边信息的概率计算过渡概率。所提出的方案以多维方式处理多个侧面信息，以便比选择一个侧面信息或通过平均多个边缘信息来生成单个侧面信息来潜在地实现编码性能。当解码器接收到多个奇偶校验位流时，来自多个流的奇偶校验位的条件概率在turbo解码中都有贡献。在解码过程中可以自动消除一些流中存在的错误。

6. 发明授权

US08498476B2 High dynamic range texture compression 有权
标题翻译：高动态范围纹理压缩
公开(公告)号：US08498476B2
公开(公告)日：2013-07-30
申请号：US13429208
申请日：2012-03-23
申请人： Yan Lu , Wen Sun , Feng Wu , Shipeng Li
发明人： Yan Lu , Wen Sun , Feng Wu , Shipeng Li
IPC分类号： G06K9/00
CPC分类号： G06T9/00
摘要： A method for compressing a high dynamic range (HDR) texture. A first block of texels of the HDR texture in a red-green-blue (RGB) space may be transformed to a second block of texels in a luminance-chrominance space. The first block may have red values, green values and blue values. The second block may have luminance values and chrominance values. The chrominance values may be based on a sum of the red values, a sum of the green values and a sum of the blue values. The luminance values and the chrominance values may be converted to an 8-bit integer format. The luminance values may be modified to restore a local linearity property to the second block. The second block may be compressed.
摘要翻译：一种用于压缩高动态范围（HDR）纹理的方法。红 - 绿 - 蓝（RGB）空间中的HDR纹理的纹素的第一块可以被变换为亮度 - 色度空间中的第二纹理纹理块。第一个块可能具有红色值，绿色值和蓝色值。第二块可以具有亮度值和色度值。色度值可以基于红色值的总和，绿色值的和与蓝色值的和。亮度值和色度值可以被转换成8位整数格式。可以修改亮度值以恢复与第二块的局部线性特性。第二个块可能被压缩。

7. 发明申请

US20110170801A1 RESIZING OF DIGITAL IMAGES 有权
标题翻译：数字图像的调整
公开(公告)号：US20110170801A1
公开(公告)日：2011-07-14
申请号：US12684925
申请日：2010-01-09
申请人： Yan Lu , Wen Sun , Feng wu , Shipeng Li
发明人： Yan Lu , Wen Sun , Feng wu , Shipeng Li
IPC分类号： G06K9/32
CPC分类号： G06T3/4007 , G06F3/14 , G09G2320/0613 , G09G2320/0626 , G09G2340/0407
摘要： Digital images are resized according to a prescribed image scaling factor. An original image is re-sampled according to the scaling factor, resulting in an initial resized image. A probability of text (POT) map is generated for the initial resized image, where the POT map specifies a smoothed POT value for each pixel in the initial resized image. A weighting factor (WF) map is generated which maps each different smoothed POT value to a particular WF value. The WF map is used to calculate an adjusted luminance value for each pixel in the initial resized image, resulting in a final resized image.
摘要翻译：数字图像根据规定的图像缩放因子调整大小。根据缩放因子重新采样原始图像，导致初始调整大小的图像。为初始调整大小的图像生成文本（POT）图的概率，其中POT映射指定初始调整大小的图像中每个像素的平滑POT值。生成加权因子（WF）图，其将每个不同的平滑POT值映射到特定的WF值。 WF图用于计算初始调整大小的图像中每个像素的调整亮度值，得到最终调整大小的图像。

8. 发明授权

US07903873B2 Textual image coding 有权
标题翻译：文字图像编码
公开(公告)号：US07903873B2
公开(公告)日：2011-03-08
申请号：US11855075
申请日：2007-09-13
申请人： Yan Lu , Feng Wu , Wenpeng Ding , Shipeng Li
发明人： Yan Lu , Feng Wu , Wenpeng Ding , Shipeng Li
IPC分类号： G06K9/36
CPC分类号： G06T9/00 , H04N1/644 , H04N19/12 , H04N19/124 , H04N19/136 , H04N19/176 , H04N19/186 , H04N19/61 , H04N19/91
摘要： Textual image coding involves coding textual portions of an image. In an example embodiment, a textual block of an image is decomposed into multiple base colors and an index map, with the index map having index values that each reference a base color so as to represent the textual block. A set of neighbor index values are ascertained for a particular index of the index map. A context that matches the neighbor index values is generated from among multiple contexts. The matching context includes a set of symbols. At least one symbol-to-value mapping is determined based on the matching context and a symbol to which the particular index corresponds. The particular index is remapped to a particular value in accordance with the symbol-to-value mapping and the symbol to which the particular index corresponds.
摘要翻译：文本图像编码涉及对图像的文本部分进行编码。在示例实施例中，图像的文本块被分解为多个基色和索引图，索引图具有每个引用基色以便表示文本块的索引值。确定索引图的特定索引的一组邻近索引值。从多个上下文中生成匹配邻居索引值的上下文。匹配的上下文包括一组符号。基于匹配上下文和特定索引对应的符号来确定至少一个符号到值映射。根据符号对值映射和特定索引对应的符号将特定索引重新映射到特定值。

9. 发明申请

US20100111410A1 REMOTE COMPUTING PLATFORMS PROVIDING HIGH-FIDELITY DISPLAY AND INTERACTIVITY FOR CLIENTS 有权
标题翻译：远程计算平台为客户提供高清显示和互动性
公开(公告)号：US20100111410A1
公开(公告)日：2010-05-06
申请号：US12408611
申请日：2009-03-20
申请人： Yan Lu , Huifeng Shen , Feng Wu , Shipeng Li
发明人： Yan Lu , Huifeng Shen , Feng Wu , Shipeng Li
IPC分类号： G06K9/36 , G06F15/16
CPC分类号： G09G5/14 , G06F3/1415 , G06F3/1462 , G09G2340/02 , G09G2350/00 , G09G2360/122 , G09G2360/18 , H04N19/107 , H04N19/136 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/61 , H04N19/625
摘要： A “Remote Display Generator,” as described herein, provides various techniques for providing high-fidelity displays with highly responsive interactive application experiences to clients across a wide range of network bandwidths for remotely hosted applications. In general, the Remote Display Generator uses a compression-friendly remote display architecture as a core. With this compression architecture, actual screen data from a remote server is read out from the display buffer frame by frame, and then compressed with a unified screen codec. Other technologies, including timer-driven screen update models and adaptive transmission mechanisms, are then integrated with various embodiments of the Remote Display Generator to improve overall user experience by improving display quality and responsiveness to user interaction with remotely hosted applications.
摘要翻译：如本文所述的“远程显示生成器”提供了用于向远程托管应用的广泛的网络带宽的客户端提供具有高响应的交互式应用体验的高保真显示器的各种技术。一般来说，远程显示生成器以压缩友好的远程显示架构为核心。利用这种压缩架构，从显示缓冲器逐帧读出来自远程服务器的实际屏幕数据，然后用统一的屏幕编解码器进行压缩。然后，其他技术（包括定时器驱动的屏幕更新模型和自适应传输机制）与远程显示生成器的各种实施例集成，以通过改善显示质量和响应用户与远程托管应用的交互来提高整体用户体验。

10. 发明授权

US08340193B2 Wyner-Ziv and wavelet video coding 有权
标题翻译： Wyner-Ziv和小波视频编码
公开(公告)号：US08340193B2
公开(公告)日：2012-12-25
申请号：US11462580
申请日：2006-08-04
申请人： Yan Lu , Xun Guo , Feng Wu , Shipeng Li
发明人： Yan Lu , Xun Guo , Feng Wu , Shipeng Li
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , G06K9/36 , G06K9/46
CPC分类号： H04N19/395 , H04N19/647
摘要： Wyner-Ziv and wavelet video coding is described. In one aspect, Wyner-Ziv frames from multiple frames of source video content are zero-tree entropy encoded to generate encoded Wyner-Ziv content. The zero-tree entropy encoding operations are based on high-order statistical correlations among wavelet transforms from the Wyner-Ziv frames. The encoded Wyner-Ziv content is communicated to a decoder for decoding to generate reconstructed Wyner-Ziv frames for presentation to a user.
摘要翻译：描述了Wyner-Ziv和小波视频编码。在一方面，来自多帧源视频内容的Wyner-Ziv帧是零树熵编码以生成编码的Wyner-Ziv内容。零树熵编码操作基于来自Wyner-Ziv帧的小波变换之间的高阶统计相关性。编码的Wyner-Ziv内容被传送到解码器以进行解码以产生重建的Wyner-Ziv帧以呈现给用户。

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