-
公开(公告)号：US09628819B2
公开(公告)日：2017-04-18
申请号：US10546715
申请日：2004-02-26
IPC分类号： H04N7/12 , H04N19/615 , H04N19/105 , H04N19/63 , H04N19/61 , H04N19/517 , H03M7/40 , H04N19/13
CPC分类号： H04N19/615 , H03M7/40 , H03M7/4006 , H04N19/105 , H04N19/13 , H04N19/517 , H04N19/61 , H04N19/63
摘要： The following steps are carried out in the inventive method: estimation of movement between a current moment corresponding to the current image and a reference moment corresponding to a reference image in order to provide a movement vector, an entropic coding for a high spatial frequency signal relating in the current image, taking into account a temporal context based on the estimation of a movement, one of the parameters used to calculate the temporal context being the parity of a component of the movement vector. Applications are related to video compression with temporal prediction.
-
公开(公告)号：US07864863B2
公开(公告)日：2011-01-04
申请号：US10558140
申请日：2004-05-01
摘要： The present invention relates to a method of coding and/or decoding groups of pictures. According to the invention, during the temporal decomposition of a stream of pictures within the framework of 3D wavelet processing, the number of pictures, the choice of the reference picture and the direction of temporal decomposition for each picture sequence of GOP type are adapted in order to minimize the number of unconnected pixels.
摘要翻译： 本发明涉及图像组编码和/或解码方法。 根据本发明，在3D小波处理的框架内的图像流的时间分解期间，对GOP类型的每个图像序列的图像数量，参考图像的选择和时间分解的方向进行顺序地调整 以最小化未连接像素的数量。
-
3.发明申请Method for coding a video image taking into account the part relating to a component of a movement vector 有权考虑到与运动矢量的分量相关的部分来对视频图像进行编码的方法公开(公告)号：US20070189389A1
公开(公告)日：2007-08-16
申请号：US10546715
申请日：2004-02-26
CPC分类号： H04N19/615 , H03M7/40 , H03M7/4006 , H04N19/105 , H04N19/13 , H04N19/517 , H04N19/61 , H04N19/63
摘要： The following steps are carried out in the inventive method: estimation of movement between a current moment corresponding to the current image and a reference moment corresponding to a reference image in order to provide a movement vector, an entropic coding for a high spatial frequency signal relating in the current image, taking into account a temporal context based on the estimation of a movement, one of the parameters used to calculate the temporal context being the parity of a component of the movement vector. Applications are related to video compression with temporal prediction.
摘要翻译： 在本发明的方法中执行以下步骤：估计与当前图像相对应的当前时刻之间的移动和与参考图像相对应的参考时刻，以便提供运动矢量，对与高空间频率信号相关的熵编码 在当前图像中，考虑到基于运动估计的时间上下文，用于计算时间上下文的参数之一是运动矢量的分量的奇偶性。 应用与时间预测的视频压缩有关。
-
公开(公告)号：US08155192B2
公开(公告)日：2012-04-10
申请号：US10546791
申请日：2004-02-20
申请人： Gwenaelle Marquant , Guillaume Boisson , Edouard Francois , Jérôme Vieron , Philippe Robert , Christine Guillemot
发明人： Gwenaelle Marquant , Guillaume Boisson , Edouard Francois , Jérôme Vieron , Philippe Robert , Christine Guillemot
IPC分类号： H04N7/12
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。
-
5.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。
-
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。
-
7.发明授权Method for deriving coding information for high resolution pictures from low resolution pictures and coding and decoding devices implementing said method 有权从低分辨率图像导出用于高分辨率图像的编码信息以及实现所述方法的编码和解码装置的方法公开(公告)号：US08345762B2
公开(公告)日：2013-01-01
申请号：US11884558
申请日：2006-02-14
申请人： Jérôme Vieron , Edouard Francois , Gwenaelle Marquant , Nicolas Burdin , Patrick Lopez , Guillaume Boisson
发明人： Jérôme Vieron , Edouard Francois , Gwenaelle Marquant , Nicolas Burdin , Patrick Lopez , Guillaume Boisson
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。
-
8.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。
-
9.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。
-
10.发明授权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：US08175153B2
公开(公告)日：2012-05-08
申请号：US10590307
申请日：2005-02-21
IPC分类号： H04N7/12
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。
-
-
-
-
-
-
-
-
-
搜索结果
32 条记录 (耗时 0.028 秒)
