公开(公告)号：US08743962B2

公开(公告)日：2014-06-03

申请号：US13038239

申请日：2011-03-01

申请人： Andreas Krutz ,  Alexander Glantz ,  Thomas Sikora

发明人： Andreas Krutz ,  Alexander Glantz ,  Thomas Sikora

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/537 ,  H04N19/46 ,  H04N19/513 ,  H04N19/56

摘要： An embodiment of the invention relates to a method for providing a compressed video bitstream related to consecutive pictures of a video sequence, wherein the pictures are defined by pixels, said method comprising the steps of: (a) applying at least one higher-order motion model to a motion vector field and generating at least one higher-order motion parameter set for said motion vector field, wherein said motion vector field comprises a plurality of first motion vectors, each first motion vector being assigned to a pixel block and describing the local displacement of the pixel block from the preceding picture to the consecutive picture, and wherein each pixel block comprises a plurality of pixels; (b) calculating a second motion vector for each pixel block based on the higher-order motion parameter set; (c) calculating the deviation between the first motion vector and the second motion vector for each pixel block; and (d) generating a video bitstream comprising the higher-order motion parameter set, and for each pixel block an information which indicates or is based on the deviation calculated in step (c).

摘要翻译： 本发明的实施例涉及一种用于提供与视频序列的连续图像相关的压缩视频比特流的方法，其中图像由像素定义，所述方法包括以下步骤：（a）应用至少一个高阶运动 模型到运动矢量场并且为所述运动矢量场生成至少一个高阶运动参数集合，其中所述运动矢量场包括多个第一运动矢量，每个第一运动矢量分配给像素块并描述局部 将像素块从前一图像移位到连续图像，并且其中每个像素块包括多个像素; （b）基于所述高阶运动参数集计算每个像素块的第二运动矢量; （c）计算每个像素块的第一运动矢量与第二运动矢量之间的偏差; 以及（d）生成包括所述高阶运动参数集的视频比特流，以及针对每个像素块，指示或者基于步骤（c）中计算出的偏差的信息。

公开(公告)号：US20130279566A1

公开(公告)日：2013-10-24

申请号：US13452364

申请日：2012-04-20

申请人： Michael TOK ,  Alexander GLANTZ ,  Andreas KRUTZ ,  Thomas SIKORA

发明人： Michael TOK ,  Alexander GLANTZ ,  Andreas KRUTZ ,  Thomas SIKORA

IPC分类号： H04N7/34

CPC分类号： H04N19/54 ,  H04N19/52 ,  H04N19/61

摘要： Parametric Motion Vector Prediction (PMVP) methodologies and components and systems for performing those methodologies are provided to more effectively and efficiently encode video content that includes complex motion such as zoom or rotation. By substituting the PMVP for a collocated MVP used in HEVC in order to reduce the amount of bit rate increase required when including the PMVP analysis in the bit stream. Further, compression of the motion vectors is provided in a three stage approach based on transformation, quantization and difference coding.

摘要翻译： 提供了用于执行这些方法的参数运动矢量预测（PMVP）方法和组件和系统，以更有效和高效地编码包括复杂运动（例如缩放或旋转）的视频内容。 通过将PMVP替换为在HEVC中使用的并置MVP，以便在将PMVP分析包括在比特流中时所需的比特率增加量减少。 此外，基于变换，量化和差分编码的三阶段方法提供运动矢量的压缩。