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公开(公告)号：US20060039479A1
公开(公告)日：2006-02-23
申请号：US11174165
申请日：2005-07-01
CPC分类号： H04N19/14 , H04N19/103 , H04N19/147 , H04N19/176 , H04N19/61
摘要： The present invention relates to a method and a device for choosing a mode of coding from among a plurality of modes of coding for a subset of blocks included in a set of blocks. An energy function over the set of blocks for each of the modes of coding is calculated and calculation elements of the energy function are stored for at least the subset of blocks. A first mode of coding, minimizing the energy function over the set of blocks is chosen. The energy function over the subset of blocks for each of the modes of coding is thereafter calculated by using the calculation elements stored for the subset of blocks and by said subset, of a cost of coding for the modes of coding distinct from the first mode of coding. The choice of a mode of coding minimizing the energy function over the subset is then effected.
摘要翻译： 本发明涉及一种用于从包括在一组块中的块的子集的多个编码模式中选择编码模式的方法和装置。 计算每个编码模式的块集合上的能量函数，并且为至少块的子集存储能量函数的计算元素。 选择第一模式的编码，使在该组块上的能量函数最小化。 然后通过使用为块的子集和所述子集存储的计算元素对与编码的每个模式的块的子集进行能量函数的编码成本不同于第一模式的编码模式 编码。 然后进行最小化该子集上的能量函数的编码模式的选择。
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公开(公告)号：US20050213655A1
公开(公告)日：2005-09-29
申请号：US10912833
申请日：2004-08-06
CPC分类号： H04N19/34 , H04N19/115 , H04N19/154 , H04N19/176
摘要： The present invention relates to a device for compressing a source image by means of a base layer, coding a base image, and of an enhancement layer, coding a residual existing between the source image and the base image, the source image and the base image being structured as blocks of pixels. According to the invention, such a device is characterized in that it comprises means for generating the enhancement layer of a block as a function of the quality of restitution of this block, determined by comparing the coding of this block in the source image with the coding of this block in the base image, and/or as a function of information coded by this block of pixels.
摘要翻译： 本发明涉及一种用于通过基本层压缩源图像，对基本图像进行编码的设备以及对源图像和基本图像之间存在的残差，源图像和基本图像进行编码的增强层 被构造为像素块。 根据本发明，这样一种装置的特征在于，它包括用于通过将源图像中的该块的编码与编码的比较确定的块来生成块的增强层作为该块的恢复质量的函数的装置 和/或作为由该像素块编码的信息的函数。
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公开(公告)号：US20050069040A1
公开(公告)日：2005-03-31
申请号：US10499278
申请日：2002-12-17
CPC分类号： H04N19/89 , H04N19/132 , H04N19/152 , H04N19/154 , H04N19/176 , H04N19/184 , H04N19/192 , H04N19/37 , H04N19/60
摘要： The method is characterized in that it comprises: a step of reducing the binary train (2) consisting in deleting one or more video packets from the binary train so as to provide a reduced binary train, a step of implementing an error masking algorithm on the reduced binary train (3) so as to calculate a corrected degraded local decoded image which is the image reconstructed on the basis of the reduced binary train and of the masking algorithm, a step of validation (4) for validating or not the reduction in the binary train as a function of the quality of the corrected degraded local decoded image, a step of selection (2) of the reduced binary train or of the binary train, depending on whether or not there is validation.
摘要翻译： 该方法的特征在于包括：减少由二进制列中删除一个或多个视频数据包组成的二进制序列（2）的步骤，以便提供一个简化的二进制序列; 还原二进制序列（3），以便计算作为基于减少的二进制序列和掩蔽算法重建的图像的校正的退化局部解码图像，验证步骤（4）用于验证 二进制序列作为校正后的劣化局部解码图像的质量的函数，根据是否有验证，选择（2）二进制列或二进制列的步骤。
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公开(公告)号：US20100232505A1
公开(公告)日：2010-09-16
申请号：US12223887
申请日：2007-02-15
IPC分类号： H04N7/34
CPC分类号： H04N19/105 , H04N19/11 , H04N19/137 , H04N19/176 , H04N19/523 , H04N19/593 , H04N19/61
摘要： The process implements an intra prediction mode which comprises: a step of motion estimation of a neighboring part of the current block, which is already coded, within the reconstructed part of the image, to get a correlated part, a step of defining a predicted block according to the correlated part and to the position of the current block regarding the neighboring part.
摘要翻译： 该过程实现帧内预测模式，其包括：在图像的重建部分内已经编码的当前块的相邻部分的运动估计步骤，以获得相关部分，定义预测块 根据相关部分和当前块关于相邻部分的位置。
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65.发明授权Method for dual-standard coding of very low data-rate images and coder-decoder for implementing this method 失效用于实现该方法的用于非常低数据速率图像和编码器解码器的双标准编码的方法
公开(公告)号：US5459515A
公开(公告)日：1995-10-17
申请号：US140128
申请日：1993-11-08
CPC分类号： H04N19/423 , H04N19/103 , H04N19/112 , H04N19/124 , H04N19/152 , H04N19/176 , H04N19/44 , H04N19/60 , H04N19/61 , H04N19/107 , H04N19/13 , H04N19/146 , H04N19/30 , H04N19/91
摘要： A method for dual-standard coding of very low data-rate images and a coder-decoder system for implementing the method, wherein images can be transmitted with low spatial "Quarter of Common Intermediate Format" (QCIF) resolution and with high time resolution according to a first standard, or with high spatial "Common Intermediate Format" (CIF) resolution and low time resolution according to a second standard. In the method and system, the coding of the images includes calculating the mean value of the quantification steps used by a quantifier circuit, comparing the calculated mean value with a first predetermined threshold value and with a second predetermined threshold value higher than the first threshold value, and, chronologically, coding the images in the first standard when the mean value of the quantification steps is lower than the first predetermined threshold value, then coding the images in the first standard as long as the mean value of the quantification steps is lower than the second predetermined threshold value, then coding the images in the second standard as long as the mean value of the quantification steps is higher than the second predetermined threshold value, then coding the images in the first standard when the mean value of the quantification steps is lower than the first predetermined threshold value.
摘要翻译： PCT No.PCT / FR93 / 00262 Sec。 371日期：1993年11月8日 102（e）日期1993年11月8日PCT 1993年3月16日PCT公布。 公开号WO93 / 19557 日期：1993年9月30日。一种用于实现该方法的非常低数据速率图像的双标准编码方法和用于实现该方法的编码器 - 解码器系统的方法，其中图像可以以低空间“公共中间格式”（QCIF） 根据第一标准具有高分辨率和高时间分辨率，或者根据第二标准具有高空间“通用中间格式”（CIF）分辨率和低时间分辨率。 在该方法和系统中，图像的编码包括计算由量化器电路使用的量化步骤的平均值，将计算的平均值与第一预定阈值和高于第一阈值的第二预定阈值进行比较 ，并且按照时间顺序，当量化步骤的平均值低于第一预定阈值时对第一标准中的图像进行编码，然后只要定量步骤的平均值低于第一标准，对第一标准中的图像进行编码 第二预定阈值，然后对第二标准中的图像进行编码，只要量化步骤的平均值高于第二预定阈值，则当定量步骤的平均值为 低于第一预定阈值。
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66.发明授权Method and device for coding a video image with a coding error estimation algorithm 有权用编码误差估计算法编码视频图像的方法和装置公开(公告)号：US08705618B2
公开(公告)日：2014-04-22
申请号：US12085329
申请日：2006-10-24
IPC分类号： H04N7/26
CPC分类号： H04N19/107 , H04N19/137 , H04N19/14 , H04N19/149 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/61
摘要： The method comprises a coding of a source block according to a coding mode wherein the selection of the coding mode is carried out, for a source block, according to coding error estimations and source block coding cost estimations for the different coding modes tested, the coding error being estimated, for a coding mode, according to the sum of the absolute values of coefficients obtained after a mathematical transformation in the frequency domain of the residue block related to this coding mode and as a function of the sum of absolute values of quantized coefficients corresponding to this coding mode. An application is the decision of the coding mode for data using the MPEG 2 or MPEG4-AVC standard.
摘要翻译： 该方法包括根据编码模式对源块的编码，其中针对源块执行编码模式的选择，根据所测试的不同编码模式的编码误差估计和源块编码成本估计，编码 对于编码模式，根据在与该编码模式相关的残差块的频域中的数学变换之后获得的系数的绝对值的和作为量化系数的绝对值之和的函数的估计误差 对应于该编码模式。 应用是使用MPEG2或MPEG4-AVC标准的数据的编码模式的决定。
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67.发明授权公开(公告)号：US08687696B2
公开(公告)日：2014-04-01
申请号：US12223434
申请日：2007-01-31
申请人： Dominique Thoreau , Franck Hiron , Yannick Olivier
发明人： Dominique Thoreau , Franck Hiron , Yannick Olivier
IPC分类号： H04N7/26
CPC分类号： H04N19/577 , H04N19/112 , H04N19/139 , H04N19/16 , H04N19/176 , H04N19/513 , H04N19/61
摘要： The method wherein the field or frame mode is selected according to the following steps: determination of a motion vector associated with a co-located macroblock of a macroblock to be coded and finding in the next reference picture, a predefined macroblock to be coded, for the selection, in field or frame mode, scaling of the motion vector according to the temporal distances between the reference pictures corresponding to this motion vector and between the current picture, field or frame, according to a predefined mode and a reference picture chosen from among the reference pictures corresponding to this motion vector, determination of the temporal macroblock in the chosen reference picture, designated by the motion vector scale attributed to the macroblock to be coded, and its field or frame coding mode, selection of field or frame coding mode of the temporal macroblock for the coding of the current macroblock. The applications relate to the compression of data using for example the MPEG4 part 10 standard.
摘要翻译： 根据以下步骤选择场或帧模式的方法：确定与要编码的宏块的同位置宏块相关联的运动矢量，并在下一个参考图像中查找要编码的预定义宏块，用于 在场或帧模式中，根据预定义的模式和从以下的参考图像中选择的参考图像，根据与该运动矢量对应的参考图像与当前图像，场或帧之间的时间距离，运动矢量的缩放 对应于该运动矢量的参考图像，由归因于要编码的宏块的运动矢量标度指定的所选参考图像中的时间宏块的确定及其场或帧编码模式，场或帧编码模式的选择 用于当前宏块的编码的时间宏块。 这些应用涉及使用例如MPEG4第10部分的数据压缩数据。
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68.发明授权Device and process for adjusting the bit rate of a stream of contents and associated products 有权用于调整内容流和相关产品的比特率的设备和过程公开(公告)号：US07739399B2
公开(公告)日：2010-06-15
申请号：US10539431
申请日：2003-12-15
IPC分类号： G06F15/16
CPC分类号： H04L1/0002 , H04L1/0026 , H04L1/1671 , H04L1/1835 , H04L1/1854 , H04L47/10 , H04L47/18 , H04L47/2416 , H04L47/263 , H04L47/283
摘要： The present invention relates to a device and a process for adjusting the bit rate of a stream of contents as a function of processing capabilities of at least one receiver. These contents are transmitted by a sender to the receiver according to a communication protocol providing for a return transmission of reception data of the contents by the receiver to the sender, including at least one parameter relating to conditions of communication of these contents in the network. The device comprises a module for estimating a required level for the bit rate as a function of information relating to these capabilities and a writing module modifying this parameter, to transmit, in return, to the sender stream adjustment cues capable of bringing about a modification of the bit rate in relation to the required level. Application to streaming.
摘要翻译： 本发明涉及一种用于根据至少一个接收机的处理能力来调整内容流的比特率的设备和过程。 这些内容由发送方根据通信协议发送给接收方，该通信协议提供接收方向发送方返回发送内容的接收数据，包括与网络中这些内容的通信条件有关的至少一个参数。 该装置包括用于根据与这些能力相关的信息来估计比特率所需的等级的模块，以及修改该参数的写入模块，以便将发送者流调整提示发送到能够进行修改 与所需等级相关的比特率。 流媒体应用
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公开(公告)号：US20100119169A1
公开(公告)日：2010-05-13
申请号：US12452694
申请日：2008-07-15
摘要： The invention concerns a method for processing images, texture pattern blocks representative of a typical texture of the images being stored in a memory, the method comprising the following steps: transforming the pixel grey levels of a current block into a current block of frequency coefficients using a predefined transform; building up a merger block, each frequency coefficient positioned at a defined place of the merger block being equal either to the frequency coefficient positioned at the same place of the current block, or to the frequency coefficient positioned at the same place of a texture pattern block among the texture pattern blocks stored in the memory; selecting a merger block according to a predefined function (J); and replacing in the image the current block by the selected merger block. The invention also concerns an electronic device for processing the corresponding images.
摘要翻译： 本发明涉及一种用于处理图像的方法，代表存储在存储器中的图像的典型纹理的纹理图案块，该方法包括以下步骤：将当前块的像素灰度级变换成当前的频率系数块，使用 预定义的变换; 建立合并块，位于合并块的定义位置的每个频率系数等于位于当前块的相同位置处的频率系数，或者与位于纹理图案块的相同位置处的频率系数相等 存储在存储器中的纹理图形块之间; 根据预定义的功能（J）选择合并块; 并且通过所选择的合并块在图像中替换当前块。 本发明还涉及用于处理相应图像的电子设备。
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公开(公告)号：US20100054331A1
公开(公告)日：2010-03-04
申请号：US12312117
申请日：2007-10-26
IPC分类号： H04N7/32
CPC分类号： H04N19/19 , H04N19/11 , H04N19/14 , H04N19/147 , H04N19/176 , H04N19/593 , H04N19/61
摘要： The method, for the determination of the coding mode of a macroblock constituted of picture blocks, carries out a pre-selection of intra directional predictive coding modes of macroblock blocks according to the following steps: calculation of the activities gradient of a block in the prediction directions, pre-selection of intra directional coding modes of a block for which the directions correspond to the activity or activities gradient of minimum value.
摘要翻译： 用于确定由图像块构成的宏块的编码模式的方法根据以下步骤执行宏块块的帧内预测编码模式的预选择：计算预测中的块的活动梯度 方向，预先选择方向对应于最小值的活动或活动梯度的块的内部方向编码模式。
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