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    • 5. 发明申请
    • RECOVERING A PRUNED VERSION OF A PICTURE IN A VIDEO SEQUENCE FOR EXAMPLE - BASED DATA PRUNING USING INTRA- FRAME PATCH SIMILARITY
    • 恢复视频序列中的图像的修改版本,用于使用帧内匹配的基于示例的数据预处理相似度
    • WO2012033971A1
    • 2012-03-15
    • PCT/US2011/050924
    • 2011-09-09
    • THOMSON LICENSINGZHANG, Dong-QingBHAGAVATHY, SitaramHE, Shan
    • ZHANG, Dong-QingBHAGAVATHY, SitaramHE, Shan
    • H04N7/26H04N7/50
    • H04N19/85G06T5/001H04N19/132H04N19/14H04N19/176H04N19/196H04N19/44H04N19/46H04N19/463H04N19/587H04N19/59H04N19/593H04N19/61H04N19/97
    • Method and apparatus for recovering a pruned version of a picture in a video sequence are disclosed. The apparatus includes a divider (115) for dividing the pruned version of the picture into a plurality of non-overlapping blocks. The apparatus also includes a metadata decoder (125) for decoding metadata for use in recovering the pruned version of the picture. The apparatus further includes a patch library creator (130) for creating a patch library from a reconstructed version of the picture. The patch library includes a plurality of high resolution replacement patches for replacing the one or more pruned blocks during a recovery of the pruned version of the picture. The apparatus additionally includes a search and replacement device (120) for performing a searching process using the metadata to find a corresponding patch for a respective one of the one or more pruned blocks from among the plurality of non-overlapping blocks and replace the respective one of the one or more pruned blocks with the corresponding patch. The signature is respectively created for each of the one or more pruned blocks, and the pruned version of the picture is recovered by comparing respective distance metrics from signatures for each of the plurality of high resolution patches to signatures for each of the one or more pruned blocks, sorting the respective distance metrics to obtain a rank list for each of the one or more pruned blocks, wherein a rank number in the rank list for a particular one of the one or more pruned blocks is used to retrieve a corresponding one of the plurality of high resolution patches in the patch library to be used to replace the particular one of the one or more pruned blocks. A patch dependency graph having a plurality of nodes and a plurality of edges is used to recover the pruned version of the picture. Each of the plurality of nodes represents a respective one of the plurality of overlapping blocks, and each of the plurality of edges represents a respective dependency of at least the respective one of the plurality of overlapping blocks.
    • 公开了一种在视频序列中恢复图像的修剪版本的方法和装置。 该装置包括分割器(115),用于将图像的修剪版本划分成多个不重叠的块。 该装置还包括用于解码元数据的元数据解码器(125),用于恢复图像的修剪版本。 该装置还包括补丁库创建器(130),用于从图像的重建版本创建补丁库。 补丁库包括多个高分辨率替换补丁,用于在恢复修剪版本的图片期间替换一个或多个修剪的块。 所述装置还包括搜索和替换装置(120),用于使用所述元数据执行搜索处理,以从所述多个非重叠块中的所述一个或多个修剪块中的相应一个块寻找相应的补丁, 的一个或多个修剪块与相应的补丁。 分别为一个或多个修剪块中的每一个分别创建签名,并且通过将针对多个高分辨率补丁中的每一个的签名的相应距离度量与针对所述一个或多个被修剪的块中的每一个的签名进行比较来恢复图像的修剪版本 块,对各个距离度量进行排序以获得一个或多个修剪块中的每一个的等级列表,其中用于一个或多个被修剪的块中的特定一个的等级列表中的等级号用于检索 补丁库中的多个高分辨率补丁用于替换一个或多个修剪块中的特定一个。 使用具有多个节点和多个边缘的补丁依赖图来恢复图像的修剪版本。 多个节点中的每一个表示多个重叠块中的相应一个,并且多个边中的每一个表示至少多个重叠块中的相应一个的相应依赖关系。
    • 6. 发明申请
    • VIDEO DECODING USING EXAMPLE - BASED DATA PRUNING
    • 使用示例的视频解码基于数据的调整
    • WO2012033965A1
    • 2012-03-15
    • PCT/US2011/050918
    • 2011-09-09
    • THOMSON LICENSINGZHANG, Dong-QingBHAGAVATHY, Sitaram
    • ZHANG, Dong-QingBHAGAVATHY, Sitaram
    • H04N7/26H04N7/50
    • H04N19/85H04N19/132H04N19/14H04N19/176H04N19/44H04N19/46H04N19/587H04N19/61
    • Methods and apparatus are provided for decoding video signals using example-based data pruning for improved video compression efficiency. An apparatus for recovering a pruned version of a picture in a video sequence includes a divider (115) for dividing the pruned version of the picture into a plurality of non-overlapping blocks, a metadata decoder (125) for decoding metadata for use in recovering the pruned version of the picture, and a patch library creator (130) for creating a patch library from a reconstructed version of the picture. The patch library includes a plurality of high-resolution replacement patches for replacing the one or more pruned blocks during a recovery of the pruned version of the picture. The apparatus further includes a search and replacement device (120) for performing a searching process using the metadata to find a corresponding patch for a respective one of the one or more pruned blocks from among the plurality of non-overlapping blocks and replace the respective one of the one or more pruned blocks with the corresponding patch.
    • 提供了使用基于示例的数据剪枝来解码视频信号以提高视频压缩效率的方法和装置。 一种用于在视频序列中恢复图像的修剪版本的装置包括:分割器(115),用于将图像的剪切版本划分成多个非重叠块;元数据解码器(125),用于解码用于恢复的元数据 修剪版本的图片,以及用于从图像的重建版本创建补丁库的补丁库创建器(130)。 补丁库包括多个高分辨率替换补丁,用于在恢复修剪版本的图片期间替换一个或多个修剪块。 所述装置还包括搜索和替换装置(120),用于使用所述元数据执行搜索处理,以从所述多个非重叠块中的所述一个或多个修剪块中的相应一个块寻找相应的补丁, 的一个或多个修剪块与相应的补丁。
    • 9. 发明申请
    • VIDEO ENCODING USING EXAMPLE - BASED DATA PRUNING
    • 使用示例的视频编码 - 基于数据的激活
    • WO2012033964A1
    • 2012-03-15
    • PCT/US2011/050917
    • 2011-09-09
    • THOMSON LICENSINGZHANG, Dong-QingBHAGAVATHY, Sitaram
    • ZHANG, Dong-QingBHAGAVATHY, Sitaram
    • H04N7/26H04N7/50
    • H04N19/85H04N19/132H04N19/14H04N19/176H04N19/44H04N19/46H04N19/587H04N19/61
    • Methods and apparatus are provided for encoding video signals using example-based data pruning for improved video compression efficiency. An apparatus for encoding a picture in a video sequence includes a patch library creator (145) for creating a first patch library from an original version of the picture and a second patch library from a reconstructed version of the picture. Each of the first patch library and the second patch library includes a plurality of high resolution replacement patches for replacing one or more pruned blocks during a recovery of a pruned version of the picture. The apparatus also includes a pruner (105) for generating the pruned version of the picture from the first patch library, and a metadata generator (135) for generating metadata from the second patch library. The metadata is for recovering the pruned version of the picture. The apparatus further includes an encoder (110, 135) for encoding the pruned version of the picture and the metadata.
    • 提供了使用基于示例的数据修剪来编码视频信号以提高视频压缩效率的方法和装置。 用于对视频序列中的图像进行编码的装置包括补丁库创建器(145),用于从图像的原始版本创建第一补丁库,以及从图像的重构版本创建第二补丁库。 第一补丁库和第二补丁库中的每个包括多个高分辨率替换补丁,用于在恢复修剪版本的图片期间替换一个或多个修剪块。 该设备还包括用于从第一补丁库生成图像的修剪版本的修剪器(105)和用于从第二补丁库生成元数据的元数据生成器(135)。 元数据用于恢复图像的修剪版本。 该装置还包括编码器(110,135),用于编码图像的修剪版本和元数据。
    • 10. 发明申请
    • METHODS AND APPARATUS FOR REDUCING VECTOR QUANTIZATION ERROR THROUGH PATCH SHIFTING
    • 通过分配移位减少矢量量化误差的方法和装置
    • WO2011097013A1
    • 2011-08-11
    • PCT/US2011/000186
    • 2011-02-01
    • THOMSON LICENSINGZHANG, Dong-QingLLACH, JoanBHAGAVATHY, Sitaram
    • ZHANG, Dong-QingLLACH, JoanBHAGAVATHY, Sitaram
    • H04N7/26H04N7/28H04N7/34H04N7/46G06T3/40
    • H04N19/105G06T1/00H04N19/139H04N19/14H04N19/59H04N19/593H04N19/94
    • Methods and apparatus are provided for reducing vector quantization error through patch shifting. A method generates (1320), from an input video sequence, one of more high resolution replacement patches, the one or more high resolution replacement patches for replacing one or more low resolution patches during a reconstruction of the input video sequence. This generating step generates the one or more high resolution replacement patches using data corresponding to a patch spatial shifting process, the patch spatial shifting process for reducing jittery artifacts caused by a motion-induced vector quantization error in the one or more high resolution replacement patches, the data for at least deriving a patch size of the one or more high resolution replacement patches such that the one or more high resolution replacement patches are generated to have the patch size greater than a patch size of the one or more low resolution patches in order to be suitable for use in the patch spatial shifting process.
    • 提供了通过补片移位来减少矢量量化误差的方法和装置。 一种方法从输入视频序列生成(1320)更多的高分辨率替换贴片之一,所述一个或多个高分辨率替换贴片用于在重建输入视频序列期间替换一个或多个低分辨率贴片。 该生成步骤使用与贴片空间移位处理对应的数据来生成一个或多个高分辨率替换贴片,该贴片空间移位处理用于减少由一个或多个高分辨率替换贴片中的运动引起的矢量量化误差引起的抖动伪像, 所述数据用于至少导出所述一个或多个高分辨率替换补丁的补丁大小,使得生成所述一个或多个高分辨率替换补丁以使所述补丁大小大于所述一个或多个低分辨率补丁的补丁大小顺序 适用于贴片空间位移过程。