Method for determining a filter for interpolating one or more pixels of a frame And Method And Device For Encoding Or Recoding A Frame
    21.
    发明申请
    Method for determining a filter for interpolating one or more pixels of a frame And Method And Device For Encoding Or Recoding A Frame 有权
    用于确定用于内插帧的一个或多个像素的滤波器的方法以及用于编码或重新编码帧的方法和装置

    公开(公告)号:US20110080953A1

    公开(公告)日:2011-04-07

    申请号:US12737172

    申请日:2009-05-11

    IPC分类号: H04N7/32

    摘要: The invention is related to a method for determining a filter for interpolating one or more pixels comprised in a frame. The proposed method comprises the step of determining the filter based on other pixels in the remainder of the frame wherein a motion vector associated with said pixels has at least one motion parameter in common with another motion vector associated with said other pixels and the filter is determined such that a quality of an interpolation of said other pixels, said interpolation being determined by help of said determined filter, reaches or exceeds the quality of any other interpolation of said other pixels determinable by help of one of different filter candidates comprised in a filter candidate set. In determining the filter solely on different other pixels of the same frame, said method for determining a filter for interpolation allows for realization of a single pass encoding framework.

    摘要翻译: 本发明涉及一种用于确定用于内插包括在帧中的一个或多个像素的滤波器的方法。 所提出的方法包括基于帧的其余部分中的其他像素确定滤波器的步骤,其中与所述像素相关联的运动矢量具有与与所述其它像素相关联的另一运动矢量共同的至少一个运动参数,并且确定滤波器 使得通过所述确定的滤波器的帮助来确定所述其他像素的插值的质量达到或超过可以通过滤波器候选中包括的不同滤波器候选之一的帮助来确定的所述其他像素的任何其它内插的质量 组。 在仅在同一帧的不同其他像素上确定滤波器的情况下,用于确定用于插值的滤波器的所述方法允许实现单程编码框架。

    Method for deriving motion for high resolution pictures from motion data of low resolution pictures and coding and decoding devices implementing said method
    22.
    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。

    Method for encoding and/or decoding groups of images
    24.
    发明授权
    Method for encoding and/or decoding groups of images 有权
    用于编码和/或解码图像组的方法

    公开(公告)号:US07864863B2

    公开(公告)日:2011-01-04

    申请号:US10558140

    申请日:2004-05-01

    IPC分类号: H04B1/66 G06K9/36

    CPC分类号: H04N19/62 H04N19/61 H04N19/63

    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。

    Method for coding a video image taking into account the part relating to a component of a movement vector
    25.
    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

    IPC分类号: H04N11/02 H04B1/66

    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。

    Inter-Layer Motion Prediction Method
    26.
    发明申请
    Inter-Layer Motion Prediction Method 失效
    层间运动预测方法

    公开(公告)号:US20090225846A1

    公开(公告)日:2009-09-10

    申请号:US12087349

    申请日:2006-12-18

    IPC分类号: H04N7/26

    摘要: The invention relates to a method for generating for at least one macroblock of a high resolution image at least one motion predictor from motion data associated to macroblock(s) of a low resolution image. The method comprises the following steps: —defining a virtual structure made up of non overlapping macroblocks, called virtual base layer macroblocks; —identifying for the high resolution macroblock corresponding virtual base layer macroblocks in the virtual image on the basis of the location of the high resolution macroblock within the high resolution image and on the basis of the ratios of low resolution and high resolution images dimensions; —deriving, for each identified virtual base layer macroblocks, motion data from motion data associated to at least one macroblock of a corresponding low resolution macroblocks pair on the basis of the field/frame mode of the corresponding low resolution macroblocks pair and on the basis of the field/frame mode of the high resolution macroblock; —resampling motion data associated to the corresponding virtual base layer macroblocks so as to generate the at least one motion predictor.

    摘要翻译: 本发明涉及一种用于从与低分辨率图像的宏块相关联的运动数据生成高分辨率图像至少一个运动预测器的方法。 该方法包括以下步骤: - 定义由非重叠宏块组成的虚拟结构,称为虚拟基本层宏块; - 基于高分辨率图像内的高分辨率宏块的位置,并且基于低分辨率和高分辨率图像尺寸的比率来识别虚拟图像中的高分辨率宏块对应的虚拟基本层宏块; 根据相应的低分辨率宏块对的场/帧模式,根据相应的低分辨率宏块对对应于与相应的低分辨率宏块对的至少一个宏块相关联的运动数据,为每个识别的虚拟基本层宏块提供运动数据,并且基于 高分辨率宏块的场/帧模式; - 与相应的虚拟基本层宏块相关联的取样运动数据,以便生成所述至少一个运动预测器。

    Method and Apparatus for Coding Interlaced Video Data
    27.
    发明申请
    Method and Apparatus for Coding Interlaced Video Data 有权
    用于编码隔行视频数据的方法和装置

    公开(公告)号:US20090067496A1

    公开(公告)日:2009-03-12

    申请号:US12087558

    申请日:2006-12-05

    IPC分类号: H04N7/12

    摘要: Often hierarchical bi-directionally predicted frame structures are used for encoding a video picture sequence. The frames may consist of interlacing fields. A method for encoding interlaced video, wherein inter-prediction of fields is used and reference lists are assigned to the fields for indicating reference frames or fields, comprises that, if within such reference list a reference to another frame is included, then references to both fields of the other frame are included separately in direct sequence. Further, a temporal level is assigned to each of the frames according to their display order, and for the frames of all except one temporal level the quantization parameter is higher for one type of fields than for the other type of fields.

    摘要翻译: 通常,分层双向预测的帧结构用于编码视频图像序列。 框架可以由交错字段组成。 一种用于对隔行扫描视频进行编码的方法,其中使用字段的帧间预测,并且将参考列表分配给用于指示参考帧或场的字段,包括如果在该参考列表内包括对另一帧的引用,则引用两者 另一帧的字段以直接的顺序分开包含。 此外,根据它们的显示顺序将时间级别分配给每个帧,并且对于除一个时间级别以外的所有帧的量化参数,对于一种类型的场而言,量化参数比对于其他类型的场更高。

    Method and apparatus for coding interlaced video data
    28.
    发明授权
    Method and apparatus for coding interlaced video data 有权
    用于对隔行扫描视频数据进行编码的方法和装置

    公开(公告)号:US08090017B2

    公开(公告)日:2012-01-03

    申请号:US12087558

    申请日:2006-12-05

    IPC分类号: H04N7/12

    摘要: Often hierarchical bi-directionally predicted frame structures are used for encoding a video picture sequence. The frames may consist of interlacing fields. A method for encoding interlaced video, wherein inter-prediction of fields is used and reference lists are assigned to the fields for indicating reference frames or fields, comprises that, if within such reference list a reference to another frame is included, then references to both fields of the other frame are included separately in direct sequence. Further, a temporal level is assigned to each of the frames according to their display order, and for the frames of all except one temporal level the quantization parameter is higher for one type of fields than for the other type of fields.

    摘要翻译: 通常,分层双向预测的帧结构用于编码视频图像序列。 框架可以由交错字段组成。 一种用于对隔行扫描视频进行编码的方法,其中使用字段的帧间预测,并且将参考列表分配给用于指示参考帧或场的字段,包括如果在该参考列表内包括对另一帧的引用,则引用两者 另一帧的字段以直接的顺序分开包含。 此外,根据它们的显示顺序将时间级别分配给每个帧,并且对于除一个时间级别以外的所有帧的量化参数,对于一种类型的场而言,量化参数比对于其他类型的场更高。

    Method for coding a picture sequence, corresponding method for reconstruction and stream of coded data representative of said sequence
    30.
    发明授权
    Method for coding a picture sequence, corresponding method for reconstruction and stream of coded data representative of said sequence 有权
    用于编码图像序列的方法,相应的重建方法和表示所述序列的编码数据流

    公开(公告)号:US08792557B2

    公开(公告)日:2014-07-29

    申请号:US13068220

    申请日:2011-05-05

    IPC分类号: H04N7/12

    摘要: A method for reconstruction of a picture sequence coded in accordance with a coding method specifying a set of coding tools and/or their associated coding parameters is disclosed. The pictures being divided into coding entities. The method for reconstruction according to the invention comprises the following steps for each coding entity coded in INTER mode: determining for the coding entity at least one reference picture, and reconstructing the coding entity from the at least one reference picture with coding tools configured by coding parameters associated with the coding tools. Advantageously, the coding tools and/or the associated coding parameters depend on the reference picture.

    摘要翻译: 公开了一种根据指定一组编码工具和/或其相关编码参数的编码方法编码的图像序列的重构方法。 图片分为编码实体。 根据本发明的重建方法包括:以INTER模式编码的每个编码实体的以下步骤:为编码实体确定至少一个参考图片,并且从至少一个参考图片重建编码实体,其中编码工具通过编码 与编码工具相关的参数。 有利地,编码工具和/或相关联的编码参数取决于参考图片。