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1. 发明申请

US20170142418A1 UNIFIED INTRA BLOCK COPY AND INTER PREDICTION MODES 审中-公开
公开(公告)号：US20170142418A1
公开(公告)日：2017-05-18
申请号：US15319797
申请日：2014-06-19
申请人： Bin LI , Ji-Zheng XU , Microsoft Technology Licensing, LLC
发明人： Bin Li , Ji-Zheng Xu
IPC分类号： H04N19/159 , H04N19/184 , H04N19/176 , H04N19/513 , H04N19/174
摘要： Innovations in unified intra block copy (“BC”) and inter prediction modes are presented. In some example implementations, bitstream syntax, semantics of syntax elements and many coding/decoding processes for inter prediction mode are reused or slightly modified to enable intra BC prediction for blocks of a frame. For example, to provide intra BC prediction for a current block of a current picture, a motion compensation process applies a motion vector that indicates a displacement within the current picture, with the current picture being used as a reference picture for the motion compensation process. With this unification of syntax, semantics and coding/decoding processes, various coding/decoding tools designed for inter prediction mode, such as advanced motion vector prediction, merge mode and skip mode, can also be applied when intra BC prediction is used, which simplifies implementation of intra BC prediction.

2. 发明申请

US20080123742A1 Selective Inter-Layer Prediction in Layered Video Coding 有权
标题翻译：分层视频编码中的选择性层间预测
公开(公告)号：US20080123742A1
公开(公告)日：2008-05-29
申请号：US11564088
申请日：2006-11-28
申请人： Ji-Zheng Xu , Kai Zhang , Feng Wu
发明人： Ji-Zheng Xu , Kai Zhang , Feng Wu
IPC分类号： H04N7/32
CPC分类号： H04N19/33 , H04N19/105 , H04N19/147 , H04N19/172 , H04N19/187 , H04N19/61
摘要： Systems and methods for using selective inter-layer prediction during layered video coding operations are described. In one aspect, a layered coded video structure is generated by selectively employing only objectively efficient inter-layer predictions between respective frames. Responsive to receiving a request for coded video data, one or more layers of the layered coded video structure are communicated to an application for decoding and presentation of video data to a user.
摘要翻译：描述了在分层视频编码操作期间使用选择性层间预测的系统和方法。在一个方面，通过选择性地仅在各个帧之间采用客观有效的层间预测来生成分层编码视频结构。响应于接收对编码视频数据的请求，将一层或多层分层编码视频结构传送给应用程序，以将视频数据解码和呈现给用户。

3. 发明授权

US08139880B2 Lifting-based directional lapped transforms 有权
标题翻译：基于提升的方向重叠变换
公开(公告)号：US08139880B2
公开(公告)日：2012-03-20
申请号：US12054043
申请日：2008-03-24
申请人： Ji-Zheng Xu , Feng Wu
发明人： Ji-Zheng Xu , Feng Wu
IPC分类号： G06K9/36
CPC分类号： H04N19/122 , G06F17/147 , H04N19/126 , H04N19/14 , H04N19/17 , H04N19/176 , H04N19/196 , H04N19/46 , H04N19/86
摘要： A “directional lapped transform coder” (“DLT Coder”) provides various techniques for designing directional lapped transforms. In general, lapped transforms are factorized into lifting steps. A “directional operator” is then introduced into each lifting step in order to construct the directional lapped transform by selecting data elements from a data signal along a path corresponding to the directional operator. The resulting directional lapped transform preserves the advantages of conventional lapped transforms while also providing more efficient representation directional signals. In various embodiments, the resulting directional lapped transform is used to enable an image/video coding scheme that provides significant improvement over conventional state-of-the-art image lapped transform based coding schemes for images with strong directional correlations.
摘要翻译： “定向重叠变换编码器”（“DLT编码器”）提供了用于设计方向重叠变换的各种技术。一般来说，重叠变换被分解为提升步骤。然后将“定向操作符”引入每个提升步骤，以便通过沿着与定向操作符相对应的路径的数据信号选择数据元素来构造方向重叠变换。所得到的定向重叠变换保留了常规重叠变换的优点，同时还提供更有效的表示方向信号。在各种实施例中，所得到的方向重叠变换用于实现对于具有强方向相关性的图像的传统的基于现有技术的基于图像重叠变换的编码方案的显着改进的图像/视频编码方案。

4. 发明申请

US20080123983A1 NON-DYADIC SPATIAL SCALABLE WAVELET TRANSFORM 有权
标题翻译：非二维空间可扩展小波变换
公开(公告)号：US20080123983A1
公开(公告)日：2008-05-29
申请号：US11563629
申请日：2006-11-27
申请人： Ruiqin Xiong , Ji-Zheng Xu , Feng Wu
发明人： Ruiqin Xiong , Ji-Zheng Xu , Feng Wu
IPC分类号： G06K9/36
CPC分类号： H04N19/635
摘要： A non-dyadic spatial scalable wavelet transform may scale an original digital video frame or digital image at a non-dyadic ratio. The digital video frame or digital image is quantized to create a set of data representing the digital video frame or digital image. The set of data is then input to the non-dyadic spatial scalable wavelet transform. The non-dyadic spatial scalable wavelet transform may then transform the data associated with a first pixel to a high-pass coefficient and use the high-pass coefficient to transform the data associated with a second and third pixel to low-pass coefficients. The low-pass coefficients may then be converted to a digital image for viewing.
摘要翻译：非二元空间可缩放小波变换可以以非二进制比例缩放原始数字视频帧或数字图像。量化数字视频帧或数字图像以创建表示数字视频帧或数字图像的一组数据。然后将该组数据输入到非二进制空间可缩放小波变换。然后，非二元空间可缩放小波变换可以将与第一像素相关联的数据变换为高通系数，并使用高通系数将与第二和第三像素相关联的数据变换为低通系数。然后可以将低通系数转换为数字图像以供观看。

5. 发明申请

US20080008252A1 Spatially-scalable video coding 有权
标题翻译：空间可缩放视频编码
公开(公告)号：US20080008252A1
公开(公告)日：2008-01-10
申请号：US11483150
申请日：2006-07-07
申请人： Ji-Zheng Xu , Ruiqin Xiong , Feng Wu
发明人： Ji-Zheng Xu , Ruiqin Xiong , Feng Wu
IPC分类号： H04B1/66
CPC分类号： H04N19/59 , H04N19/33 , H04N19/61
摘要： Video data for a high resolution image unit is coded with regard to both a low resolution reference image unit and a high resolution reference image unit. In an example encoding implementation, both low pass information and high pass information of residue data for a current image are generated. In an example decoding implementation, a current image is reconstructed by synthesizing both low pass information and high pass information for the reconstructed image.
摘要翻译：关于低分辨率参考图像单元和高分辨率参考图像单元的高分辨率图像单元的视频数据被编码。在编码实现的示例中，生成当前图像的残差数据的低通信息和高通信息。在解码实现的示例中，通过合成重建图像的低通信息和高通信息来重建当前图像。

6. 发明授权

US09332274B2 Spatially scalable video coding 有权
标题翻译：空间可分级视频编码
公开(公告)号：US09332274B2
公开(公告)日：2016-05-03
申请号：US11483150
申请日：2006-07-07
申请人： Ji-Zheng Xu , Ruiqin Xiong , Feng Wu
发明人： Ji-Zheng Xu , Ruiqin Xiong , Feng Wu
IPC分类号： H04N19/59 , H04N19/61 , H04N19/33
CPC分类号： H04N19/59 , H04N19/33 , H04N19/61
摘要： Video data for a high resolution image unit is coded with regard to both a low resolution reference image unit and a high resolution reference image unit. In an example encoding implementation, both low pass information and high pass information of residue data for a current image are generated. In an example decoding implementation, a current image is reconstructed by synthesizing both low pass information and high pass information for the reconstructed image.
摘要翻译：关于低分辨率参考图像单元和高分辨率参考图像单元的高分辨率图像单元的视频数据被编码。在编码实现的示例中，生成当前图像的残差数据的低通信息和高通信息。在解码实现的示例中，通过合成重建图像的低通信息和高通信息来重建当前图像。

7. 发明授权

US08244071B2 Non-dyadic spatial scalable wavelet transform 有权
标题翻译：非二元空间可缩放小波变换
公开(公告)号：US08244071B2
公开(公告)日：2012-08-14
申请号：US11563629
申请日：2006-11-27
申请人： Ruiqin Xiong , Ji-Zheng Xu , Feng Wu
发明人： Ruiqin Xiong , Ji-Zheng Xu , Feng Wu
IPC分类号： G06K9/32 , G06K9/36
CPC分类号： H04N19/635
摘要： A non-dyadic spatial scalable wavelet transform may scale an original digital video frame or digital image at a non-dyadic ratio. The digital video frame or digital image is quantized to create a set of data representing the digital video frame or digital image. The set of data is then input to the non-dyadic spatial scalable wavelet transform. The non-dyadic spatial scalable wavelet transform may then transform the data associated with a first pixel to a high-pass coefficient and use the high-pass coefficient to transform the data associated with a second and third pixel to low-pass coefficients. The low-pass coefficients may then be converted to a digital image for viewing.
摘要翻译：非二元空间可缩放小波变换可以以非二进制比例缩放原始数字视频帧或数字图像。量化数字视频帧或数字图像以创建表示数字视频帧或数字图像的一组数据。然后将该组数据输入到非二进制空间可缩放小波变换。然后，非二元空间可缩放小波变换可以将与第一像素相关联的数据变换为高通系数，并使用高通系数将与第二和第三像素相关联的数据变换为低通系数。然后可以将低通系数转换为数字图像以供观看。

8. 发明授权

US08116581B2 Efficient image representation by edges and low-resolution signal 有权
标题翻译：通过边缘和低分辨率信号的高效图像表示
公开(公告)号：US08116581B2
公开(公告)日：2012-02-14
申请号：US11770154
申请日：2007-06-28
申请人： Tiantian Sun , Ji-Zheng Xu , Feng Wu
发明人： Tiantian Sun , Ji-Zheng Xu , Feng Wu
IPC分类号： G06K9/48
CPC分类号： H04N1/41 , G06T9/20 , H04N19/147 , H04N19/30 , H04N19/59 , H04N19/625 , H04N19/96
摘要： An exemplary method for encoding an image includes receiving image data, detecting edges in the image data, selecting at least some of the detected edges, encoding the selected edges as selected edge information, down-sampling the image data, encoding the down-sampled image as down-sampled image information and multiplexing the selected edges information and the down-sampled image information. In such a method, the selected edges information and the down-sampled image information can be stored as an encoded image file. Other exemplary methods, devices, systems are also disclosed.
摘要翻译：用于对图像进行编码的示例性方法包括接收图像数据，检测图像数据中的边缘，选择检测到的边缘中的至少一些，将所选择的边缘编码为所选择的边缘信息，对图像数据进行下采样，对下采样图像进行编码作为下采样图像信息并多路复用所选择的边缘信息和下采样图像信息。在这种方法中，所选择的边缘信息和下采样图像信息可以被存储为编码图像文件。还公开了其它示例性方法，装置，系统。

9. 发明授权

US08081680B2 Selective inter-layer prediction in layered video coding 有权
标题翻译：分层视频编码中的选择性层间预测
公开(公告)号：US08081680B2
公开(公告)日：2011-12-20
申请号：US11564088
申请日：2006-11-28
申请人： Ji-Zheng Xu , Kai Zhang , Feng Wu
发明人： Ji-Zheng Xu , Kai Zhang , Feng Wu
IPC分类号： H04N7/46 , H04N7/34 , H04N7/36 , H04N7/48 , H04N7/32
CPC分类号： H04N19/33 , H04N19/105 , H04N19/147 , H04N19/172 , H04N19/187 , H04N19/61
摘要： Systems and methods for using selective inter-layer prediction during layered video coding operations are described. In one aspect, a layered coded video structure is generated by selectively employing only objectively efficient inter-layer predictions between respective frames. Responsive to receiving a request for coded video data, one or more layers of the layered coded video structure are communicated to an application for decoding and presentation of video data to a user.
摘要翻译：描述了在分层视频编码操作期间使用选择性层间预测的系统和方法。在一个方面，通过选择性地仅在各个帧之间采用客观有效的层间预测来生成分层编码视频结构。响应于接收对编码视频数据的请求，将一层或多层分层编码视频结构传送给应用程序，以将视频数据解码和呈现给用户。

10. 发明申请

US20090238484A1 LIFTING-BASED DIRECTIONAL LAPPED TRANSFORMS 有权
标题翻译：基于LIFTING的方向快速变换
公开(公告)号：US20090238484A1
公开(公告)日：2009-09-24
申请号：US12054043
申请日：2008-03-24
申请人： Ji-Zheng Xu , Feng Wu
发明人： Ji-Zheng Xu , Feng Wu
IPC分类号： G06K9/36
CPC分类号： H04N19/122 , G06F17/147 , H04N19/126 , H04N19/14 , H04N19/17 , H04N19/176 , H04N19/196 , H04N19/46 , H04N19/86
摘要： A “directional lapped transform coder” (“DLT Coder”) provides various techniques for designing directional lapped transforms. In general, lapped transforms are factorized into lifting steps. A “directional operator” is then introduced into each lifting step in order to construct the directional lapped transform by selecting data elements from a data signal along a path corresponding to the directional operator. The resulting directional lapped transform preserves the advantages of conventional lapped transforms while also providing more efficient representation directional signals. In various embodiments, the resulting directional lapped transform is used to enable an image/video coding scheme that provides significant improvement over conventional state-of-the-art image lapped transform based coding schemes for images with strong directional correlations.
摘要翻译： “定向重叠变换编码器”（“DLT编码器”）提供了用于设计方向重叠变换的各种技术。一般来说，重叠变换被分解为提升步骤。然后将“定向操作符”引入每个提升步骤，以便通过沿着与定向操作符相对应的路径的数据信号选择数据元素来构造方向重叠变换。所得到的定向重叠变换保留了常规重叠变换的优点，同时还提供更有效的表示方向信号。在各种实施例中，所得到的方向重叠变换用于实现对于具有强方向相关性的图像的传统的基于现有技术的基于图像重叠变换的编码方案的显着改进的图像/视频编码方案。

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