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101. 发明公开

EP2559245A1 VIDEO CODING USING MULTI-TREE SUB - DIVISIONS OF IMAGES 有权转让
标题翻译：多叉树细分用于视频编码的影像
公开(公告)号：EP2559245A1
公开(公告)日：2013-02-20
申请号：EP11714644.9
申请日：2011-04-08
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： KIRCHHOFFER, Heiner , WINKEN, Martin , HELLE, Philipp , MARPE, Detlev , SCHWARZ, Heiko , WIEGAND, Thomas
IPC分类号： H04N7/26 , G06T9/40 , H04N7/50 , H04N7/36 , H04N7/34
CPC分类号： H04N19/96 , H04N19/17 , H04N19/176 , H04N19/1883 , H04N19/46 , H04N19/52 , H04N19/53 , H04N19/59 , H04N19/593 , H04N19/61
摘要： Coding schemes for coding a spatially sampled information signal using sub-division and coding schemes for coding a sub-division or a multitree structure are described, wherein representative embodiments relate to picture and/or video coding applications.

102. 发明公开

EP2497271A2 HYBRID VIDEO CODING 有权
标题翻译：混合视频
公开(公告)号：EP2497271A2
公开(公告)日：2012-09-12
申请号：EP10779494.3
申请日：2010-11-03
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： BROSS, Benjamin , WIEGAND, Thomas , SCHWARZ, Heiko
IPC分类号： H04N7/26 , H04N7/34 , H04N7/36
摘要： A further coding efficiency increase is achieved by, in hybrid video coding, additionally predicting the residual signal of a current frame by motion-compensated prediction using a reference residual signal of a previous frame. In other words, in order to further reduce the energy of the final residual signal, i.e. the one finally transmitted, and thus increase the coding efficiency, it is proposed to additionally predict the residual signal by motion-compensated prediction using the reconstructed residual signals of previously coded frames.
摘要翻译：通过在混合视频编码中，通过使用前一帧的参考残差信号的运动补偿预测附加地预测当前帧的残差信号，可实现进一步的编码效率提高。换句话说，为了进一步降低最终残留信号的能量，即最终发送的残留信号的能量，从而提高编码效率，建议通过运动补偿预测来使用重建的残余信号来预测剩余信号以前编码的帧。

103. 发明公开

EP2279622A1 BIT-DEPTH SCALABILITY 有权转让
标题翻译：位深度可扩展性
公开(公告)号：EP2279622A1
公开(公告)日：2011-02-02
申请号：EP08735287.8
申请日：2008-04-16
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： WIEGAND, Thomas , WINKEN, Martin
IPC分类号： H04N7/26
CPC分类号： H04N19/593 , H04N19/117 , H04N19/184 , H04N19/33 , H04N19/36 , H04N19/80 , H04N19/82
摘要： To increase efficiency of a bit-depth scalable data-stream an inter-layer prediction is obtained by mapping samples of the representation of the picture or video source data with a first picture sample bit-depth from a first dynamic range corresponding to the first picture sample bit-depth to a second dynamic range greater than the first dynamic range and corresponding to a second picture sample bit-depth being higher than the first picture sample bit-depth by use of one or more global mapping functions being constant within the picture or video source data or varying at a first granularity, and a local mapping function locally modifying the one or more global mapping functions and varying at a second granularity smaller than the first granularity, with forming the quality-scalable data-stream based on the local mapping function such that the local mapping function is derivable from the quality-scalable data-stream.
摘要翻译：为了提高比特深度可缩放数据流的效率，通过将图片或视频源数据的表示的样本与来自对应于第一图片的第一动态范围的第一图片样本比特深度进行映射来获得层间预测将比特深度采样到大于第一动态范围的第二动态范围，并且通过使用在图片内恒定的一个或多个全局映射函数来对应于高于第一图片采样比特深度的第二图片采样比特深度;或者视频源数据或以第一粒度变化;以及局部映射功能，局部修改所述一个或多个全局映射函数并且以小于所述第一粒度的第二粒度变化，其中基于所述局部映射形成所述质量可缩放数据流功能，使得本地映射功能可从质量可伸缩的数据流中导出。

104. 发明公开

EP2143279A1 SCALABLE VIDEO CODING SUPPORTING PIXEL VALUE REFINEMENT SCALABILITY 有权
标题翻译：可扩展的视频编码支持像素值精化可扩展性
公开(公告)号：EP2143279A1
公开(公告)日：2010-01-13
申请号：EP07764969.7
申请日：2007-06-29
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： WIEGAND, Thomas , WINKEN, Martin
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/59 , H04N19/30 , H04N19/33 , H04N19/61
摘要： A more efficient way of enabling scalability in terms of pixel value resolution is achieved by temporally predicting (126, 142) a first and a second representation of a video material separately to each other with the first representation being of a lower pixel value resolution than the second representation, with mapping the first prediction residual or a reconstructed version thereof from the first pixel value resolution to the second pixel value resolution dependent on the second prediction signal obtained from temporally predicting the second representation, and by coding (132, 134, 144) a second prediction residual being of the second pixel value resolution as representing a deviation between a combination of the second and third prediction signals and the second representation.
摘要翻译：在像素值分辨率方面实现可缩放性的更有效的方式是通过临时预测（126,142）彼此分离的视频材料的第一和第二表示来实现的，其中第一表示的像素值分辨率低于第二表示，其中根据从时间上预测第二表示获得的第二预测信号，将第一预测残差或其重建版本从第一像素值分辨率映射到第二像素值分辨率，并且通过编码（132,134,144）作为第二像素值分辨率的第二预测残差表示第二和第三预测信号的组合与第二表示之间的偏差。

105. 发明公开

EP2119248A1 CONCEPT FOR DETERMINING A VIDEO QUALITY MEASURE FOR BLOCK CODED IMAGES 有权
标题翻译：概念确定质量VIDEO群众块编码图像
公开(公告)号：EP2119248A1
公开(公告)日：2009-11-18
申请号：EP07711833.9
申请日：2007-03-07
申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
发明人： NDJIKI-NYA, Patrick , WIEGAND, Thomas
IPC分类号： H04N17/00
CPC分类号： H04N17/004 , H04N19/154
摘要： An Apparatus (100) for determining an image quality measure (Qs) of an image signal (d(y, x)) having a vertical resolution of Y lines and a horizontal resolution of X columns on the basis of a reference image signal (o(y, x)), having a vertical resolution of Y lines and a horizontal resolution of X columns, the apparatus comprising a means (310) for determining a vertical edge image signal (dv(y, x)) representing vertical edges in the image signal, a horizontal edge image signal (dh(y, x)) representing horizontal edges in the image signal, a vertical edge reference image signal (ov(y, x)) representing vertical edges in the reference image signal and a horizontal edge reference image signal (oh(y, x)) representing horizontal edges in the reference image signal, a means (320) for determining a first mean absolute spatial gradient (Eo(y, x)) in the reference image signal based on a first sum of samples of the horizontal edge reference image signal (oh(y, x)) and a second sum of samples of the vertical edge reference image signal (ov(y, x)), wherein the samples of the first sum are spaced one line and K columns apart, and the samples of the second sum are spaced K lines and one column apart, and for determining a second mean absolute spatial gradient (Ed(y, x)) in the image signal based on a third sum of samples of the horizontal edge image signal (dh(y, x)) and a fourth sum of samples of the vertical edge image signal (dv(y, x)), wherein the samples of the third sum are spaced one line and K columns apart and the samples of the fourth sum are spaced K lines and one column apart, and a means (330) for calculating the image quality measure (Qs(t) ), based on the first (Eo(y, x)) and the second mean absolute spatial gradient (Ed(y, x)).

106. 发明公开

EP1977602A1 PICTURE CODING USING ADAPTIVE COLOUR SPACE TRANSFORMATION 有权转让
标题翻译：图像压缩编码算法一自适应色彩空间转换
公开(公告)号：EP1977602A1
公开(公告)日：2008-10-08
申请号：EP06706903.9
申请日：2006-02-13
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： KAUFF, Peter , MARPE, Detlev , WIEGAND, Thomas
IPC分类号： H04N7/26
摘要： The present invention is based on the finding that pictures or a picture stream can be encoded highly efficient when a representation of pictures is chosen that is having different picture blocks, wherein each picture block is carrying picture information for picture areas smaller than the full area of the picture and when the different picture blocks are carrying the picture information either in a first color-space-representation or in a second color-space-representation. Since different color-space-representations have individual inherent properties with respect to their describing parameters, choosing an appropriate color-space-representation individually for the picture blocks results in an encoded representation of pictures that is having a better quality at a given size or bit rate.

107. 发明公开

EP1800490A1 VORRICHTUNG UND VERFAHREN ZUM ERZEUGEN EINER CODIERTEN VIDEOSEQUENZ UNTER VERWENDUNG EINER ZWISCHEN-SCHICHT-BEWEGUNGSDATEN-PRÄDIKTION 审中-公开
标题翻译：设备和方法产生编码的视频序列使用中间层的移动数据预测
公开(公告)号：EP1800490A1
公开(公告)日：2007-06-27
申请号：EP05791756.9
申请日：2005-09-21
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： SCHWARZ, Heiko , MARPE, Detlev , WIEGAND, Thomas
IPC分类号： H04N7/26 , H04N7/46 , H04N7/36 , H04N7/50
CPC分类号： H04N19/615 , H04N19/103 , H04N19/105 , H04N19/13 , H04N19/176 , H04N19/31 , H04N19/36 , H04N19/52 , H04N19/61 , H04N19/63 , H04N19/70
摘要： During scalable video coding in conjunction with a movement compensation (1006, 1014) both in a base layer (1002) as well as in an enhancement layer, a prediction (1014, 1016) of the movement data of the enhancement layer (1004) is carried out while using the movement data of the base layer (1004) in order to obtain a scalability concept that, on the one hand, leads to a maximum flexibility for the computation of the movement data of the different layers and, on the other, permits a low bit rate.

108. 发明公开

EP1797536A1 CODIERSCHEMA FÜR EINEN EIN ZEITLICH VERAENDERLICHES GRAPHIKMODELL DARSTELLENDEN DATENSTROM 有权
标题翻译：编码的一次性薇拉·恩德ROYAL图形模型的数据将显示STREAM
公开(公告)号：EP1797536A1
公开(公告)日：2007-06-20
申请号：EP05783863.3
申请日：2005-09-15
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： KAUTZNER, Matthias , MUELLER, Karsten , SMOLIC, Aljoscha , WIEGAND, Thomas
IPC分类号： G06T9/00 , H04N7/36
CPC分类号： G06T9/001 , H04N19/13 , H04N19/46 , H04N19/51 , H04N19/593
摘要： According to the invention, the introduction of an additional prediction step (14), that is, a prediction of the movement vector and/or the prediction error (d (t)) of the first prediction step, increases initially the coding and/or compression complexity and also the corresponding decoding and/or decompression complexity. In the majority of graphic model sequences, the prediction provided here leads to, based on the uniformity of the movement, a considerable improvement of the compression obtained in relation to a generated complexity.

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