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公开(公告)号：US20070147492A1
公开(公告)日：2007-06-28
申请号：US10546791
申请日：2004-02-20
申请人： Gwenaelle Marquant , Guillaume Boisson , Edouard Francois , Jerome Vieron , Philippe Robert , Christine Guillemot
发明人： Gwenaelle Marquant , Guillaume Boisson , Edouard Francois , Jerome Vieron , Philippe Robert , Christine Guillemot
摘要： Fully scalable encoder and decoder for interlaced video. A method for encoding an interlaced sequence of digital video data decomposes the interlaced video sequence into first and second fields, performs digital filtering to get lower frequency and higher frequency component signals of the first fields, and uses spatio-temporal filtering and motion estimation for generating base layer signals being suitable for reconstruction of a progressive mode video sequence in a receiver. Advantageously, both the spatio-temporal filter at the encoder, and the inverse process at the receiver, can perform scaling in spatial and temporal dimension. The second fields are used to generate enhancement signals, which enable a receiver to reproduce an interlaced video sequence of the full, or scaled, spatial and/or temporal resolution.
摘要翻译： 完全可缩放的编码器和解码器，用于隔行视频。 用于编码数字视频数据的隔行序列的方法将隔行视频序列分解成第一和第二场，执行数字滤波以获得第一场的较低频率和较高频率分量信号，并且使用时空滤波和运动估计来产生 基层信号适用于在接收机中重建逐行扫描视频序列。 有利地，编码器处的时空滤波器和接收器处的逆过程都可以在空间和时间维度上执行缩放。 第二场用于产生增强信号，这使得接收机能够再现完整或缩放的空间和/或时间分辨率的隔行视频序列。
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2.发明申请Method for coding and decoding an image sequence encoded with spatial and temporal scalability 审中-公开用于对以空间和时间可伸缩性编码的图像序列进行编码和解码的方法公开(公告)号：US20070171971A1
公开(公告)日：2007-07-26
申请号：US10590332
申请日：2005-02-21
CPC分类号： H04N19/615 , H04N19/117 , H04N19/523 , H04N19/63
摘要： The method is characterized in that the resolution chosen for the motion information and the complexity of the interpolation filters used during a motion compensated filtering operation depend on a decoding scenario, namely the spatial and temporal resolutions and the bit-rate selected for the decoding or the corresponding temporal decomposition level or a combination of these parameters. The applications relate to the video coders/decoders known as “scalable” for example in the domain of video telephony or video transmission over internet.
摘要翻译： 该方法的特征在于，针对运动信息选择的分辨率和在运动补偿滤波操作期间使用的内插滤波器的复杂度取决于解码场景，即解码方案，即为解码选择的空间和时间分辨率和比特率， 相应的时间分解级别或这些参数的组合。 这些应用涉及例如在视频电话或互联网上的视频传输领域中被称为“可缩放”的视频编码器/解码器。
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3.发明授权公开(公告)号：US08094718B2
公开(公告)日：2012-01-10
申请号：US10592627
申请日：2005-01-12
IPC分类号： H04N7/36
CPC分类号： H04N19/615 , H04N19/114 , H04N19/13 , H04N19/136 , H04N19/139 , H04N19/14 , H04N19/147 , H04N19/177 , H04N19/19 , H04N19/192 , H04N19/44 , H04N19/61 , H04N19/63
摘要： In video encoding, the video frames are spatio-temporally filtered for reduction of spatial and temporal redundancy before they are entropy encoded. Known filtering schemes consider temporally successive frames and are static. It is probable but not necessary that successive frames are most efficient to encode. Therefore, a plurality or all possible frame order permutations are considered for a group of frames (GOP) and evaluated based on a global criterion, which is the sum of local criterion values computed over successive subsets of permuted frames. The local criterion value is deduced from motion estimation processed on each considered set of frames. The best ordering is chosen as the one that minimizes the global criterion value.
摘要翻译： 在视频编码中，对视频帧进行时空滤波，以便在熵编码之前减少空间和时间冗余。 已知的滤波方案考虑时间上连续的帧，并且是静态的。 连续的帧是编码最有效的可能但不是必需的。 因此，对于一组帧（GOP）考虑多个或所有可能的帧顺序排列，并且基于全局准则来评估，该全局标准是在连续的置换帧的子集上计算的局部标准值的总和。 从每个考虑的帧集合处理的运动估计推导出局部标准值。 选择最佳顺序作为最小化全局准则值的顺序。
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4.发明申请Method Of Encoding And Decoding An Image Sequence By Means Of Hierarchical Temporal Analysis 有权通过分层时间分析对图像序列进行编码和解码的方法公开(公告)号：US20080025394A1
公开(公告)日：2008-01-31
申请号：US10590307
申请日：2005-02-21
IPC分类号： H04N7/26
CPC分类号： H04N19/615 , H04N19/107 , H04N19/124 , H04N19/13 , H04N19/1883 , H04N19/61 , H04N19/63 , H04N19/647
摘要： The method realizes a motion compensated temporal filtering (MCTF), the temporal filtering being replaced by an intra mode coding to obtain at least one low (L) or high (H) frequency picture if the current picture has a level of correlation with a lower previous picture at a threshold, the low frequency pictures obtained (L) being thus scaled to be adapted, at the energy level, to the pictures obtained by motion compensated temporal filtering, and comprises, at the end of analysis:a selection of the pictures obtained by intra coding of a picture of a low decomposition level with the additional condition, for the high frequency pictures, that this picture is derived itself from an intra coding. a calibration of the picture selected by carrying out at least one reverse step of the scaling step. The applications relate to video compression with temporal prediction.
摘要翻译： 该方法实现运动补偿时间滤波（MCTF），如果当前图像具有与较低的（L）或高（H）频率图像的相关水平，则时间滤波被帧内模式编码替代以获得至少一个低（L）或高（H） 所获得的低频图像（L）因此被缩放以在能量水平上适应于通过运动补偿时间滤波获得的图像，并且包括在分析结束时：选择图像 通过附加条件对低分辨率级别的图像进行帧内编码而获得的高频图像，该图像是从帧内编码本身导出的。 通过执行缩放步骤的至少一个反向步骤来校准所选择的图像。 该应用涉及到具有时间预测的视频压缩。
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5.发明申请公开(公告)号：US20070201557A1
公开(公告)日：2007-08-30
申请号：US10592627
申请日：2005-01-12
IPC分类号： H04B1/66
CPC分类号： H04N19/615 , H04N19/114 , H04N19/13 , H04N19/136 , H04N19/139 , H04N19/14 , H04N19/147 , H04N19/177 , H04N19/19 , H04N19/192 , H04N19/44 , H04N19/61 , H04N19/63
摘要： In video encoding, the video frames are spatio-temporally filtered for reduction of spatial and temporal redundancy before they are entropy encoded. Known filtering schemes consider temporally successive frames and are static. It is probable but not necessary that successive frames are most efficient to encode. Therefore, a plurality or all possible frame order permutations are considered for a group of frames (GOP) and evaluated based on a global criterion, which is the sum of local criterion values computed over successive subsets of permuted frames. The local criterion value is deduced from motion estimation processed on each considered set of frames. The best ordering is chosen as the one that minimizes the global criterion value.
摘要翻译： 在视频编码中，对视频帧进行时空滤波，以便在熵编码之前减少空间和时间冗余。 已知的滤波方案考虑时间上连续的帧，并且是静态的。 连续的帧是编码最有效的可能但不是必需的。 因此，对于一组帧（GOP）考虑多个或所有可能的帧顺序排列，并且基于全局准则来评估，该全局标准是在连续的置换帧的子集上计算的局部标准值的总和。 从每个考虑的帧集合处理的运动估计推导出局部标准值。 选择最佳顺序作为最小化全局准则值的顺序。
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6.发明申请Method for Deriving Coding Information for High Resolution Pictures from Low Resolution Pictures and Coding and Decoding Devices Implementing Said Method 有权用于从低分辨率图像和编码和解码设备中提取用于高分辨率图像的编码信息的方法实现所述方法公开(公告)号：US20090028245A1
公开(公告)日：2009-01-29
申请号：US11884558
申请日：2006-02-14
申请人： Jerome Vieron , Edouard Francois , Gwenaelle Marquant , Nicolas Burdin , Patrick Lopez , Guillaume Boisson
发明人： Jerome Vieron , Edouard Francois , Gwenaelle Marquant , Nicolas Burdin , Patrick Lopez , Guillaume Boisson
IPC分类号： H04N7/26
CPC分类号： H04N19/59 , H04N19/103 , H04N19/105 , H04N19/109 , H04N19/119 , H04N19/157 , H04N19/176 , H04N19/187 , H04N19/30 , H04N19/33 , H04N19/40 , H04N19/51 , H04N19/513 , H04N19/57 , H04N19/593 , H04N19/61
摘要： The invention relates to spatially scalable encoding and decoding processes using a method for deriving coding information. More particularly, it relates to a method for deriving coding information for high resolution pictures from the coding information of low resolution pictures. The method mainly comprises the following steps: Computing geometrical parameters characterizing the position of said high layer macroblock relatively to the corresponding base layer macroblocks and deriving from these parameters a macroblock class; Deriving a partition and possibly sub-partitions for each partition of said high layer macroblock from corresponding base layer macroblocks partition and sub-partitions on the basis of the geometrical parameters and HL MB class; and Deriving motion information for said high layer macroblock from motion information of corresponding base layer macroblocks.
摘要翻译： 本发明涉及使用用于导出编码信息的方法的空间可缩放编码和解码过程。 更具体地，涉及从低分辨率图像的编码信息中导出用于高分辨率图像的编码信息的方法。 该方法主要包括以下步骤：计算表征所述高层宏块相对于相应基层宏块的位置的几何参数，并从这些参数中得出宏块类; 基于几何参数和HL MB类，从对应的基本层宏块分区和子分区导出所述高层宏块的每个分区的分区和可能的子分区; 以及从对应的基本宏块的运动信息中提取所述高层宏块的运动信息。
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7.发明申请Method for Deriving Coding Information for High Resolution Images from Low Resolution Images and Coding and Decoding Devices Implementing Said Method 审中-公开从低分辨率图像中导出高分辨率图像的编码信息的方法和实现所述方法的编码和解码设备公开(公告)号：US20080267291A1
公开(公告)日：2008-10-30
申请号：US11884493
申请日：2006-02-13
申请人： Jerome Vieron , Edouard Francois , Gwenaelle Marquant , Nicolas Burdin , Patrick Lopez , Guillaume Boisson
发明人： Jerome Vieron , Edouard Francois , Gwenaelle Marquant , Nicolas Burdin , Patrick Lopez , Guillaume Boisson
CPC分类号： H04N19/198 , H04N19/105 , H04N19/107 , H04N19/139 , H04N19/159 , H04N19/176 , H04N19/187 , H04N19/196 , H04N19/30 , H04N19/33 , H04N19/513 , H04N19/59 , H04N19/593 , H04N19/61
摘要： The invention relates to spatially scalable encoding and decoding processes using a method for deriving coding information. More particularly, it relates to a method for deriving coding information used to encode high resolution images from coding information used to encode low resolution images when the ratio between high resolution and low resolution images dimensions is a multiple of 3/2. The method mainly comprises the following steps: deriving a block coding mode for each 8×8 blocks of a prediction macroblock MBi_pred from the macroblock coding mode of the associated base layer macroblocks on the basis of the macroblock class of MBi and an the basis of the position of the 8×8 block within MBi_pred; deriving a macroblock coding mode for MBi_pred from the coding modes of the associated base layer macroblocks; and deriving motion information for each macroblock MBi_pred from the motion information of the associated base layer macroblocks.
摘要翻译： 本发明涉及使用用于导出编码信息的方法的空间可缩放编码和解码过程。 更具体地说，本发明涉及当高分辨率和低分辨率图像尺寸之比为3/2的倍数时，用于从用于编码低分辨率图像的编码信息中获取用于编码高分辨率图像的编码信息的方法。 该方法主要包括以下步骤：基于MBi的宏块类别，从相关联的基层宏块的宏块编码模式中得出预测宏块MBi_pred的每个8×8块的块编码模式，以及基于MBi的宏块类型 MBi_pred内的8x8块; 从相关联的基本宏块的编码模式中导出用于MBi_pred的宏块编码模式; 以及从相关联的基本宏块的运动信息中导出每个宏块MBi_pred的运动信息。
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公开(公告)号：US07961785B2
公开(公告)日：2011-06-14
申请号：US10592628
申请日：2005-02-28
IPC分类号： H04N7/12
CPC分类号： H04N19/577 , H04N19/112 , H04N19/187 , H04N19/517 , H04N19/52
摘要： Interlaced video can be encoded in two layers, base layer and enhancement layer. A method for optimizing the encoding of motion vectors for enhancement layer is proposed. It comprises defining various different ways to encode the motion vectors, estimate the coding costs for each way, and select the way with the lowest coding cost. The various ways to encode enhancement layer motion vectors can be combined. Either motion vectors from base layer are reused, resulting in a scaling factor and an update vector, or new motion vectors are calculated. Either forward or backward or bi-directional prediction can be used. Either one frame or multiple frames can be taken as reference. The reference frame can be from the enhancement layer, base layer or both. Either the complete motion vectors are encoded, or only the difference between the motion vector and the corresponding BL motion vector is encoded.
摘要翻译： 隔行视频可以编码在两层，基层和增强层。 提出了一种优化增强层运动矢量编码的方法。 它包括定义各种不同的方式对运动矢量进行编码，估算每种方式的编码成本，并选择具有最低编码成本的方式。 编码增强层运动矢量的各种方式可以组合。 来自基层的运动矢量被重用，导致缩放因子和更新向量，或者计算新的运动矢量。 可以使用向前或向后或双向预测。 可以将一帧或多帧作为参考。 参考帧可以来自增强层，基本层或两者。 对整个运动矢量进行编码，或仅对运动矢量与对应的BL运动矢量之间的差进行编码。
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公开(公告)号：US20080232473A1
公开(公告)日：2008-09-25
申请号：US10592628
申请日：2005-02-28
IPC分类号： H04N7/32
CPC分类号： H04N19/577 , H04N19/112 , H04N19/187 , H04N19/517 , H04N19/52
摘要： Interlaced video can be encoded in two layers, base layer and enhancement layer. A method for optimizing the encoding of motion vectors for enhancement layer is proposed. It comprises defining various different ways to encode the motion vectors, estimate the coding costs for each way, and select the way with the lowest coding cost. The various ways to encode enhancement layer motion vectors can be combined. Either motion vectors from base layer are reused, resulting in a scaling factor and an update vector, or new motion vectors are calculated. Either forward or backward or bi-directional prediction can be used. Either one frame or multiple frames can be taken as reference. The reference frame can be from the enhancement layer, base layer or both. Either the complete motion vectors are encoded, or only the difference between the motion vector and the corresponding BL motion vector is encoded.
摘要翻译： 隔行视频可以编码在两层，基层和增强层。 提出了一种优化增强层运动矢量编码的方法。 它包括定义各种不同的方式对运动矢量进行编码，估算每种方式的编码成本，并选择具有最低编码成本的方式。 编码增强层运动矢量的各种方式可以组合。 来自基层的运动矢量被重用，导致缩放因子和更新向量，或者计算新的运动矢量。 可以使用向前或向后或双向预测。 可以将一帧或多帧作为参考。 参考帧可以来自增强层，基本层或两者。 对整个运动矢量进行编码，或仅对运动矢量与对应的BL运动矢量之间的差进行编码。
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公开(公告)号：US20060291564A1
公开(公告)日：2006-12-28
申请号：US11451288
申请日：2006-06-12
CPC分类号： H04N19/59 , H04N19/122 , H04N19/635
摘要： The method comprising a wavelet-based spatial analysis step comprising filtering operations of the picture at the high resolution format and horizontal and/or vertical decimation operations of the filtered picture to supply subband signals, is wherein a decimation operation is carried out according to a factor different from an even value and corresponds to the quotient of the horizontal and vertical dimensions of the first and second format such that the low frequency picture thus obtained relative to the low frequency subband signals, corresponds to the second format.
摘要翻译： 该方法包括基于小波的空间分析步骤，包括以高分辨率格式对图像进行滤波操作，以及滤波图像的水平和/或垂直抽取操作以提供子带信号，其中根据因子执行抽取操作 与偶数值不同，并且对应于第一和第二格式的水平和垂直尺寸的商，使得如此获得的相对于低频子带信号的低频图像对应于第二格式。
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