公开(公告)号：EP2761597A4

公开(公告)日：2015-07-01

申请号：EP11873359

申请日：2011-10-01

申请人： INTEL CORP

发明人： LU NING ,  RAUCHFUSS BRIAN D ,  LEE SANG-HEE ,  CHIU YI-JEN

IPC分类号： H04N19/85 ,  H04N19/40 ,  H04N19/86

CPC分类号： H04N19/00909 ,  H04N19/40 ,  H04N19/85 ,  H04N19/86

摘要： Methods, systems and computer program products to increase the efficiency of a trancoding system by providing additional data from a video processor to an encoder, and by providing control signals from the encoder back to the video processor. The video processor may provide variances to the encoder, where these values would not otherwise be available to the encoder or would be computationally intensive for the encoder to generate on its own. The encoder may then use these variances to generate encoded, compressed video data more efficiently. The encoder may also generate control signals for use by the video processor, enabling the video processor to adapt to reconfigurations of the encoder, thereby improving the efficiency of the transcoding operation.

公开(公告)号：EP2240905B1

公开(公告)日：2012-08-08

申请号：EP08719873.5

申请日：2008-01-11

申请人： Zoran (France)

发明人： BRUNA ESTRACH, Joan ,  SHAND, Mark Alexander

IPC分类号： G06T7/20 ,  H04N5/14 ,  H04N7/26

CPC分类号： H04N19/00909 ,  G06T7/238 ,  H04N5/145 ,  H04N5/21 ,  H04N7/0127 ,  H04N7/0135 ,  H04N19/86

摘要： In a method of analyzing an input video sequence, pixels of synthesized images of an output video sequence are associated with respective directions of regularity belonging to a predefined set of directions. A first subset of candidate directions is determined from the predefined set of directions for a region of a first image of the output sequence. For a corresponding region of a second synthesized image of the output sequence following the first image, a second subset of candidate directions is determined from the predefined set of directions, based on images of the input sequence and the first subset of candidate directions. The directions of regularity for pixels of this region of the second synthesized image are detected from the second subset of candidate directions. The recursive determination of the subsets of candidate directions provides a sparse geometry for efficiently analyzing the video sequence.

公开(公告)号：EP2754292B1

公开(公告)日：2016-08-31

申请号：EP11871907.9

申请日：2011-09-09

申请人： Thomson Licensing

发明人： GU, Xiaodong ,  ZHANG, Fan ,  CHEN, Zhibo

IPC分类号： H04B17/309 ,  H04N19/154

CPC分类号： H04N19/00909 ,  H04N19/154

公开(公告)号：EP2240905A1

公开(公告)日：2010-10-20

申请号：EP08719873.5

申请日：2008-01-11

申请人： Zoran (France)

发明人： BRUNA ESTRACH, Joan ,  SHAND, Mark Alexander

IPC分类号： G06T7/20

CPC分类号： H04N19/00909 ,  G06T7/238 ,  H04N5/145 ,  H04N5/21 ,  H04N7/0127 ,  H04N7/0135 ,  H04N19/86

摘要： In a method of analyzing an input video sequence, pixels of synthesized images of an output video sequence are associated with respective directions of regularity belonging to a predefined set of directions. A first subset of candidate directions is determined from the predefined set of directions for a region of a first image of the output sequence. For a corresponding region of a second synthesized image of the output sequence following the first image, a second subset of candidate directions is determined from the predefined set of directions, based on images of the input sequence and the first subset of candidate directions. The directions of regularity for pixels of this region of the second synthesized image are detected from the second subset of candidate directions. The recursive determination of the subsets of candidate directions provides a sparse geometry for efficiently analyzing the video sequence.

摘要翻译： 在分析输入视频序列的方法中，输出视频序列的合成图像的像素与属于预定义方向集合的各个规律方向相关联。 从输出序列的第一图像的区域的预定义的一组方向确定候选方向的第一子集。 对于第一图像之后的输出序列的第二合成图像的对应区域，基于输入序列的图像和候选方向的第一子集，从预定义的一组方向确定候选方向的第二子集。 从候选方向的第二子集中检测第二合成图像的该区域的像素的规则方向。 候选方向子集的递归确定提供了一个稀疏几何，用于有效分析视频序列。 该方法非常适合于超分辨率视频应用，如去隔行扫描，帧速率转换和降噪。

公开(公告)号：EP1933566A2

公开(公告)日：2008-06-18

申请号：EP07121133.8

申请日：2007-11-20

申请人： University-Industry Cooperation Group of Kyung Hee University

发明人： Park, Gwang Hoon ,  Park, Min Woo ,  Suh, Doug Young ,  Kim, Kyu Heon

IPC分类号： H04N7/26 ,  H04N7/50

CPC分类号： H04N19/00909 ,  H04N19/117 ,  H04N19/137 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61 ,  H04N19/80 ,  H04N19/86

摘要： Provided are a bS derivation process and a deblocking filtering method and apparatus using illumination compensation and/or chrominance compensation, such as a multi-view video coding, in a picture coding/decoding process in which a prediction coding is performed. If neither of the two blocks are intra-coded, neither of the two blocks do contain a none-zero transformed coefficient, and motion compensation for the two blocks is performed based on the identical reference frame and the absolute difference between the horizontal or vertical components of the two motion vectors of the two blocks is less than 1, the bS of the two blocks is derived by considering whether the two blocks are coded by illumination compensation (IC) according to an embodiment of the present invention,. Specifically, if both of the two blocks are coded by IC mode or neither of the two blocks are coded by IC mode, bS is set as such a value that filtering is unnecessary. On the other hand, if both of the two blocks are coded by IC mode and the blocks have different illumination change values, or only one of the blocks is coded by IC mode, the bS is derived using difference of illumination change values or the illumination change value.

摘要翻译： 本发明提供一种bS推导过程以及去块滤波方法和装置使用光照补偿和/或色度补偿，调查作为多视图视频编码中，在其中进行预测编码的图片的编码/解码处理。 如果没有两个块都是帧内编码的，既没有两个块确实包含一个无非零变换系数，两个块的运动补偿是基于相同参考帧和水平或垂直分量之间的绝对差值进行 所述两个块的两个运动向量的是小于1，所述两个块的授权机构是通过考虑两个块是否是通过光照补偿（IC）雅鼎在本发明实施例编码为衍生。 具体而言，如果两个块均是通过IC模式编码的，或者两个都不块均是通过IC模式编码的，则将bS为值求做滤波是不必要的设置。 在另一方面，如果两个块均是通过IC模式进行编码并且所述块具有不同的光照变化值，或仅块中的一个是通过IC模式编码的，则BS使用光照变化值或光照的差获得 变化值。

公开(公告)号：EP2949122A1

公开(公告)日：2015-12-02

申请号：EP14704422.6

申请日：2014-01-16

申请人： Microsoft Technology Licensing, LLC

发明人： SPEARS, Stacey ,  WU, Haoyun ,  WU, Rui ,  PRABHU, Sudhakar

IPC分类号： H04N19/186 ,  H04N19/16 ,  H04N7/01 ,  H04N19/117 ,  H04N19/86 ,  H04N19/46 ,  H04N19/172

CPC分类号： H04N19/00909 ,  H04N7/012 ,  H04N9/646 ,  H04N19/117 ,  H04N19/16 ,  H04N19/172 ,  H04N19/186 ,  H04N19/46 ,  H04N19/86

摘要： A method for correcting artifacts in compressed video having interlaced frames may comprise receiving decoded video data, the decoded video data including a frame and metadata corresponding to the frame. The method may further comprise applying a vertical chroma filter to the frame responsive to determining that the metadata indicates that the frame is an interlaced frame.

公开(公告)号：EP2754292A4

公开(公告)日：2015-05-06

申请号：EP11871907

申请日：2011-09-09

申请人： THOMSON LICENSING

发明人： GU XIAODONG ,  ZHANG FAN ,  CHEN ZHIBO

IPC分类号： H04B17/309 ,  H04N19/154

CPC分类号： H04N19/00909 ,  H04N19/154

公开(公告)号：EP2742691A4

公开(公告)日：2015-04-29

申请号：EP12845248

申请日：2012-10-29

申请人： MEDIATEK SINGAPORE PTE LTD

发明人： GUO XUN ,  AN JICHENG ,  HSU CHIH-WEI ,  HUANG YU-WEN ,  LEI SHAW-MIN

IPC分类号： H04N19/159 ,  H04N19/117 ,  H04N19/176 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86

CPC分类号： H04N19/82 ,  H04N19/00909 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/86

摘要： A method and apparatus for deblocking of reconstructed video in a video coding system are disclosed. Embodiments according to the present invention determine boundary strength between two blocks without checking whether the block boundary is a coding unit (CU) boundary. In one embodiment according to the present invention, the method comprises determining whether any of the two blocks is Intra coded. If any of the two blocks is Intra coded, the boundary strength is assigned a first value. Otherwise, additional decision processing is performed to determine the boundary strength. In another embodiment, said determining the boundary strength for the block boundary comprises determining whether the block boundary is a TU boundary and whether any of the two blocks contains coefficients. In yet another embodiment, said determining the boundary strength for the block boundary comprises determining whether the two blocks have different reference pictures or different motion vectors.

摘要翻译： 公开了一种在视频编码系统中重构视频解块的方法和装置。 根据本发明的实施例确定两个块之间的边界强度，而不检查块边界是否是编码单元（CU）边界。 在根据本发明的一个实施例中，该方法包括确定两个块中的任一个是否是内部编码。 如果两个块中的任一个是内部编码的，则边界强度被分配第一个值。 否则，执行额外的决策处理以确定边界强度。 在另一个实施例中，所述确定块边界的边界强度包括确定块边界是否为TU边界，以及两个块中的任一个是否包含系数。 在另一个实施例中，所述确定块边界的边界强度包括确定两个块是否具有不同的参考图像或不同的运动矢量。

公开(公告)号：EP2761597A1

公开(公告)日：2014-08-06

申请号：EP11873359.1

申请日：2011-10-01

申请人： Intel Corporation

发明人： LU, Ning ,  RAUCHFUSS, Brian D. ,  LEE, Sang-hee ,  CHIU, Yi-Jen

IPC分类号： G06T9/00 ,  H04N7/26

CPC分类号： H04N19/00909 ,  H04N19/40 ,  H04N19/85 ,  H04N19/86

摘要： Methods, systems and computer program products to increase the efficiency of a trancoding system by providing additional data from a video processor to an encoder, and by providing control signals from the encoder back to the video processor. The video processor may provide variances to the encoder, where these values would not otherwise be available to the encoder or would be computationally intensive for the encoder to generate on its own. The encoder may then use these variances to generate encoded, compressed video data more efficiently. The encoder may also generate control signals for use by the video processor, enabling the video processor to adapt to reconfigurations of the encoder, thereby improving the efficiency of the transcoding operation.

公开(公告)号：EP2880861A4

公开(公告)日：2016-03-09

申请号：EP13825061

申请日：2013-08-01

申请人： MEDIATEK INC

发明人： CHAO PING ,  LIN HUEI-MIN ,  CHANG YUNG-CHANG ,  JU CHI-CHENG

IPC分类号： H04N7/24 ,  H04N7/00

CPC分类号： H04N19/86 ,  H04N19/00909 ,  H04N19/117 ,  H04N19/156 ,  H04N19/176 ,  H04N19/82

摘要： A method and apparatus for applying DF processing and SAO processing to reconstructed video data are disclosed. The DF processing is applied to a current access element of reconstructed video data to generate DF output data and the deblocking status is determined while applying the DF processing. Status-dependent SAO processing is applied to one or more pixels of the DF output data according to the deblocking status. The status-dependent SAO processing comprises SAO processing, partial SAO processing, and no SAO processing. The SAO starting time for SAO processing is between the DF-output starting time and ending time for the current block. The DF starting time of a next block can be earlier than the SAO ending time of the current block by a period oft, where t is smaller than time difference between the DF-output starting time and the DF starting time of the next block.

摘要翻译： 公开了一种用于将DF处理和SAO处理应用于重建的视频数据的方法和装置。 DF处理被应用于重构视频数据的当前访问元件以产生DF输出数据，并且在应用DF处理的同时确定去块状态。 根据去块状态，将状态依赖的SAO处理应用于DF输出数据的一个或多个像素。 状态依赖性SAO处理包括SAO处理，部分SAO处理，无SAO处理。 SAO处理的SAO启动时间在当前块的DF输出开始时间和结束时间之间。 下一个块的DF开始时间可以比当前块的SAO结束时间早一个时间t，其中t小于DF输出开始时间和下一个块的DF开始时间之间的时间差。