Device and method for coding a sequence of images in scalable format and corresponding decoding device and method
    1.
    发明申请
    Device and method for coding a sequence of images in scalable format and corresponding decoding device and method 审中-公开
    用于以可缩放格式编码图像序列的装置和方法及相应的解码装置和方法

    公开(公告)号:US20080260043A1

    公开(公告)日:2008-10-23

    申请号:US11974734

    申请日:2007-10-16

    IPC分类号: H04N7/26

    摘要: The invention relates to a method for coding an image data macroblock of a sequence of images presented in the form of a base layer and at least one enhancement layer. The image data macroblock to which corresponds an image data block in the base layer, called a corresponding block, belongs to the enhancement layer. The method comprises the following steps: generate, for the said image data macroblock, a prediction macroblock of image data from one block or several blocks of image data blocks of the said base layer previously coded and reconstructed, generate a macroblock of residues from the prediction macroblock and from the image data macroblock MBEL of the enhancement layer, and code the said macroblock of residues. According to the invention, the image data blocks of the said base layer are different from the corresponding block.

    摘要翻译: 本发明涉及一种用于编码以基层和至少一个增强层形式呈现的图像序列的图像数据宏块的方法。 被称为对应块的基础层中对应于图像数据块的图像数据宏块属于增强层。 该方法包括以下步骤:为所述图像数据宏块生成来自预先编码和重建的所述基本层的一个块或多个图像数据块的图像数据的预测宏块,从预测生成残差宏块 宏块和来自增强层的图像数据宏块MB EL EL,并对所述宏块进行编码。 根据本发明,所述基础层的图像数据块与相应的块不同。

    Simplified Inter-layer Motion Prediction for Scalable Video Coding
    2.
    发明申请
    Simplified Inter-layer Motion Prediction for Scalable Video Coding 有权
    用于可缩放视频编码的简化层间运动预测

    公开(公告)号:US20090103615A1

    公开(公告)日:2009-04-23

    申请号:US12227046

    申请日:2007-04-26

    IPC分类号: H04N7/12

    CPC分类号: H04N19/33 H04N19/61 H04N19/70

    摘要: The invention relates to a method for determining for a high layer macroblock that uses inter-layer prediction a partitioning of the macroblock in partitions. It comprises the following steps: —dividing the high layer macroblock in non-overlapping high layer blocks of a predefined size; —determining a corresponding base layer pixel for one pixel, called reference pixel, of each high layer block; —identifying, for each reference pixel, a base layer macroblock to which the corresponding base layer pixel belongs, a base layer partition to which the corresponding base layer pixel belongs in the identified base layer macroblock, a base layer sub-partition to which the corresponding base layer pixel belongs in the identified base layer partition if the sub-partition exists; —deriving, for each of the high layer block, a single value, called Part Info value; and —determining a partitioning of the high layer macroblock in macroblock partitions by comparing between them the Part Info values associated with each of the high layer blocks.

    摘要翻译: 本发明涉及一种用于确定高层宏块的方法,所述高层宏块使用层间预测来分割分区中的宏块。 它包括以下步骤:在预定义大小的非重叠高层块中划分高层宏块; - 确定每个高层块的一个像素(称为参考像素)的相应基本层像素; - 对于每个参考像素,识别对应的基本层像素所属的基本层宏块,相应的基本层像素属于所识别的基本层宏块中的基本层分区,相应的基本层子分区 如果子分区存在,则基层像素属于所识别的基层分区; - 为每个高层块提供单个值,称为零件信息值; 并且通过比较它们与每个高层块相关联的部件信息值来确定宏块分区中的高层宏块的划分。

    Method for deriving motion for high resolution pictures from motion data of low resolution pictures and coding and decoding devices implementing said method
    4.
    发明申请
    Method for deriving motion for high resolution pictures from motion data of low resolution pictures and coding and decoding devices implementing said method 有权
    用于从低分辨率图像的运动数据和实现所述方法的编码和解码装置得到高分辨率图像运动的方法

    公开(公告)号:US20090323811A1

    公开(公告)日:2009-12-31

    申请号:US12309159

    申请日:2007-07-02

    IPC分类号: H04N7/26

    摘要: The invention relates to a method for deriving motion data for a macroblock divided in elementary blocks of a high resolution picture, called high layer macroblock, from motion data of macroblocks of a low resolution picture, called base layer macroblock. The method comprises the following steps: computing, for each elementary block, an intermediate position within the low resolution picture from the elementary block position depending on the coding modes of the high layer macroblock and of the high and low resolution pictures; identifying the base layer macroblock, called base_MB, comprising the pixel located at the intermediate position; computing a final position within the low resolution picture from the virtual base layer position depending on the coding modes of the base_MB, of the high layer macroblock; identifying the base layer macroblock, called real_base_MB, comprising the pixel located at the final position; and deriving motion data, for the high layer macroblock, from motion data of the identified real_base_MB.

    摘要翻译: 本发明涉及一种用于从被称为基本层宏块的低分辨率图像的宏块的运动数据中导出被划分成高分辨率图像的基本块(被称为高层宏块)的宏块的运动数据的方法。 该方法包括以下步骤:根据高层宏块和高分辨率图像以及低分辨率图像的编码模式,从基本块位置计算低分辨率图像内的每个基本块的中间位置; 识别基本层宏块,称为base_MB,其包括位于中间位置的像素; 根据高层宏块的base_MB的编码模式,从虚拟基本层位置计算低分辨率图像内的最终位置; 识别包括位于最终位置处的像素的称为real_base_MB的基本层宏块; 以及从所识别的real_base_MB的运动数据中导出高层宏块的运动数据。

    Simplified inter-layer motion prediction for scalable video coding
    5.
    发明授权
    Simplified inter-layer motion prediction for scalable video coding 有权
    可缩放视频编码的简化层间运动预测

    公开(公告)号:US08275037B2

    公开(公告)日:2012-09-25

    申请号:US12227046

    申请日:2007-04-26

    IPC分类号: H04N7/12

    CPC分类号: H04N19/33 H04N19/61 H04N19/70

    摘要: Methods for determining for high layer macroblocks that use inter-layer prediction, a partitioning of the macroblock. The methods include dividing the high layer macroblock in non-overlapping high layer blocks of a predefined size; determining a corresponding base layer pixel for one pixel, called reference pixel, of each high layer block; identifying, for each reference pixel, a base layer macroblock to which the corresponding base layer pixel belongs, a base layer partition to which the corresponding base layer pixel belongs in the identified base layer macroblock, a base layer sub-partition to which the corresponding base layer pixel belongs in the identified base layer partition if the sub-partition exists; deriving, for each of the high layer block, a single value, called Partlnfo value; and determining a partitioning of the high layer macroblock in macroblock partitions by comparing between them the Partlnfo values associated with each of the high layer blocks.

    摘要翻译: 用于确定使用层间预测的高层宏块的方法,宏块的划分。 所述方法包括在预定义大小的非重叠高层块中划分高层宏块; 确定每个高层块的一个像素(称为参考像素)的相应基本层像素; 为每个参考像素识别对应的基本层像素所属的基本层宏块,相应的基本层像素所属的基本层分区在所识别的基础层宏块中;基础层子分区,其中对应的基础 如果子分区存在,则层像素属于所识别的基层分区; 为每个高层块导出一个称为Partlnfo值的单个值; 以及通过在它们之间比较与高层块中的每一个相关联的Partlnfo值来确定宏块分区中的高层宏块的划分。

    METHOD FOR PROCESSING IMAGES AND THE CORRESPONDING ELECTRONIC DEVICE
    6.
    发明申请
    METHOD FOR PROCESSING IMAGES AND THE CORRESPONDING ELECTRONIC DEVICE 有权
    用于处理图像的方法和相应的电子设备

    公开(公告)号:US20100119169A1

    公开(公告)日:2010-05-13

    申请号:US12452694

    申请日:2008-07-15

    IPC分类号: G06K9/46 G06K9/36

    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。

    Method for dual-standard coding of very low data-rate images and
coder-decoder for implementing this method
    8.
    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

    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。

    Method for processing images and the corresponding electronic device
    9.
    发明授权
    Method for processing images and the corresponding electronic device 有权
    图像处理方法及相应的电子设备

    公开(公告)号:US08285064B2

    公开(公告)日:2012-10-09

    申请号:US12452694

    申请日:2008-07-15

    IPC分类号: G06K9/36

    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。

    Method of motion estimation for transmission cost reduction of motion vectors
    10.
    发明授权
    Method of motion estimation for transmission cost reduction of motion vectors 有权
    运动矢量传输成本降低的运动估计方法

    公开(公告)号:US07408987B1

    公开(公告)日:2008-08-05

    申请号:US09786432

    申请日:1999-09-06

    IPC分类号: H04N7/18

    摘要: The method includes segmentation of the video image into image blocks, movement estimation per image block in order to obtain a field of movement vectors. It is characterized in that it includes a stage of reassignment of a vector to a block by selecting one movement vector from among N predominant vectors belonging to the field of vectors. The applications relate to movement estimation, for example, by image-block matching.

    摘要翻译: 该方法包括将视频图像分割成图像块,每个图像块的运动估计,以获得运动矢量场。 其特征在于,它包括通过从属于矢量场的N个主要矢量中选择一个运动矢量来将向量重新分配给块的阶段。 应用涉及运动估计,例如通过图像块匹配。