公开(公告)号：EP2950538A1

公开(公告)日：2015-12-02

申请号：EP15177398.3

申请日：2003-01-07

申请人： LG Electronics, Inc.

发明人： JEON, Byeong Moon

IPC分类号： H04N19/51 ,  H04N19/583 ,  H04N19/142 ,  H04N19/179 ,  H04N19/114 ,  H04N19/139 ,  H04N19/527 ,  H04N19/87 ,  H04N5/14 ,  H04N19/17 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176 ,  H04N19/159 ,  H04N19/61 ,  H04N19/103 ,  H04N19/56 ,  H04N19/503 ,  H04N19/577

CPC分类号： H04N19/577 ,  H04N5/145 ,  H04N5/147 ,  H04N19/00054 ,  H04N19/0026 ,  H04N19/00266 ,  H04N19/00278 ,  H04N19/00684 ,  H04N19/103 ,  H04N19/105 ,  H04N19/114 ,  H04N19/117 ,  H04N19/139 ,  H04N19/142 ,  H04N19/159 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/179 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/527 ,  H04N19/56 ,  H04N19/573 ,  H04N19/58 ,  H04N19/583 ,  H04N19/61 ,  H04N19/87

摘要： A video coding method for deriving motion vectors for a bi-predictive block is disclosed, the method comprising: obtaining a reference picture of the bi-predictive block; determining a motion vector of the bi-predictive block; and decoding the bi-predictive block based on the determined motion vector, characterized in that the determining the motion vector of the bi-predictive block comprising setting the motion vector of the bi-predictive block equal to a motion vector of the co-located block in the reference picture, when the reference picture is a long-term reference picture.

摘要翻译： 公开了一种用于导出双预测块的运动矢量的视频编码方法，该方法包括：获得双预测块的参考图像; 确定所述双预测块的运动矢量; 以及基于所确定的运动矢量对所述双预测块进行解码，其特征在于，确定所述双预测块的运动矢量包括将所述双预测块的运动矢量设置为等于所述同位置块的运动矢量 在参考图片中，当参考图片是长期参考图片时。

公开(公告)号：EP2785063B1

公开(公告)日：2015-08-19

申请号：EP14173792.4

申请日：2003-01-07

申请人： LG Electronics, Inc.

发明人： Jeon, Byeong Moon

IPC分类号： H04N19/513 ,  H04N19/573 ,  H04N19/58 ,  H04N19/56 ,  H04N19/105 ,  H04N19/503 ,  H04N19/159 ,  H04N19/51 ,  H04N19/172 ,  H04N19/61 ,  H04N19/176 ,  H04N19/577 ,  H04N19/583 ,  H04N19/179 ,  H04N19/103 ,  H04N19/142 ,  H04N19/114 ,  H04N19/17 ,  H04N19/87 ,  H04N19/527

CPC分类号： H04N19/577 ,  H04N5/145 ,  H04N5/147 ,  H04N19/00054 ,  H04N19/0026 ,  H04N19/00266 ,  H04N19/00278 ,  H04N19/00684 ,  H04N19/103 ,  H04N19/105 ,  H04N19/114 ,  H04N19/117 ,  H04N19/139 ,  H04N19/142 ,  H04N19/159 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/179 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/527 ,  H04N19/56 ,  H04N19/573 ,  H04N19/58 ,  H04N19/583 ,  H04N19/61 ,  H04N19/87

摘要： A picture (P) is coded in inter-mode according to scene changes. Direct-mode motion vectors are calculated and coded according to the type of reference picture pointed to by a motion vector of a co-located block in the specified picture. The type of reference picture is determined using a reference picture index calculated previously at a co-located block. The index is stored in a system buffer. When a motion vector points to a long-term reference picture, the forward motion vector is for the co-located block and the backwards motion vector is zero. When a motion vector points to a short term reference picture, motion vectors are determined by scaling the motion vector of the co-located block in the specified picture by using the time difference between the pictures. Motion vectors are stored in a system buffer. Independent claims are also included for the following: (1) a method of coding a moving picture in inter-mode; and (2) a method of coding a moving picture sequence in a moving picture coding system.

公开(公告)号：EP2752011A4

公开(公告)日：2015-04-22

申请号：EP12828190

申请日：2012-08-31

申请人： NOKIA CORP

发明人： HANNUKSELA MISKA ,  RUSANOVSKYY DMYTRO

IPC分类号： H04N13/00 ,  H04N19/114 ,  H04N19/597 ,  H04N19/70

CPC分类号： H04N19/00769 ,  H04N19/114 ,  H04N19/597 ,  H04N19/70

摘要： There is disclosed a method, an apparatus, a server, a client and a non-transitory computer readable medium comprising a computer program stored therein for multi view video coding and decoding. View random access (VRA) pictures or access units are coded into a multiview bitstream. VRA pictures enable starting the decoding of a subset of the views present in the bitstream. The views selected to be accessible in VRA pictures are alternated in successive VRA pictures so that all views are gradually reconstructed when two or more VRA pictures have been decoded.

公开(公告)号：EP2202988B1

公开(公告)日：2014-08-20

申请号：EP10003369.5

申请日：2003-01-07

申请人： LG Electronics Inc.

发明人： Jeon, Byeong Moon

IPC分类号： H04N19/142 ,  H04N19/51 ,  H04N19/105 ,  H04N19/114 ,  H04N19/583 ,  H04N19/56 ,  H04N19/503 ,  H04N5/14 ,  H04N19/61 ,  H04N19/103 ,  H04N19/577 ,  H04N19/87 ,  H04N19/179 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/159

CPC分类号： H04N19/577 ,  H04N5/145 ,  H04N5/147 ,  H04N19/00054 ,  H04N19/0026 ,  H04N19/00266 ,  H04N19/00278 ,  H04N19/00684 ,  H04N19/103 ,  H04N19/105 ,  H04N19/114 ,  H04N19/117 ,  H04N19/139 ,  H04N19/142 ,  H04N19/159 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/179 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/527 ,  H04N19/56 ,  H04N19/573 ,  H04N19/58 ,  H04N19/583 ,  H04N19/61 ,  H04N19/87

摘要： A picture (P) is coded in inter-mode according to scene changes. Direct-mode motion vectors are calculated and coded according to the type of reference picture pointed to by a motion vector of a co-located block in the specified picture. The type of reference picture is determined using a reference picture index calculated previously at a co-located block. The index is stored in a system buffer. When a motion vector points to a long-term reference picture, the forward motion vector is for the co-located block and the backwards motion vector is zero. When a motion vector points to a short term reference picture, motion vectors are determined by scaling the motion vector of the co-located block in the specified picture by using the time difference between the pictures. Motion vectors are stored in a system buffer. Independent claims are also included for the following: (1) a method of coding a moving picture in inter-mode; and (2) a method of coding a moving picture sequence in a moving picture coding system.

公开(公告)号：EP2458863A3

公开(公告)日：2014-08-13

申请号：EP11174098.1

申请日：2003-06-27

申请人： Dolby Laboratories Licensing Corporation

发明人： Demos, Gary, A.

IPC分类号： H04N19/114 ,  H04N19/117 ,  H04N19/18 ,  H04N19/186 ,  H04N19/44 ,  H04N19/48 ,  H04N19/50 ,  H04N19/51 ,  H04N19/577 ,  H04N19/583 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86 ,  H04N19/137 ,  H04N19/147 ,  H04N19/162 ,  H04N19/17

CPC分类号： H04N19/577 ,  H04N19/114 ,  H04N19/117 ,  H04N19/136 ,  H04N19/137 ,  H04N19/147 ,  H04N19/162 ,  H04N19/167 ,  H04N19/17 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/186 ,  H04N19/187 ,  H04N19/433 ,  H04N19/44 ,  H04N19/48 ,  H04N19/50 ,  H04N19/51 ,  H04N19/513 ,  H04N19/517 ,  H04N19/52 ,  H04N19/573 ,  H04N19/58 ,  H04N19/587 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82

摘要： A method and system for improving the image quality of one or more predicted frames in a video image compression system, where each frame comprises a plurality of pixels. A picture region or macroblock of certain types of frames can be encoded by reference to two or more referenceable frames. Such encoding includes determining at least one macroblock within a bidirectional predicted frame (B) using direct mode prediction based on motion vectors from two or more predicted frames (P), wherein at least one such motion vector is scaled by a frame scale fraction of less than zero or greater than one.

公开(公告)号：EP2249567A4

公开(公告)日：2012-12-12

申请号：EP09704263

申请日：2009-01-22

申请人： NEC CORP

发明人： MORIYOSHI TATSUJI

IPC分类号： G11B27/00 ,  G11B27/32 ,  H04N5/783 ,  H04N7/173 ,  H04N7/50 ,  H04N19/00 ,  H04N19/102 ,  H04N19/114 ,  H04N19/159 ,  H04N19/167 ,  H04N19/423 ,  H04N19/46 ,  H04N19/503 ,  H04N19/70 ,  H04N19/91 ,  H04N21/2343 ,  H04N21/2387 ,  H04N21/432 ,  H04N21/4402

CPC分类号： G11B27/007 ,  G11B27/322 ,  H04N5/783 ,  H04N5/85 ,  H04N5/907 ,  H04N9/8042 ,  H04N9/8205 ,  H04N19/107 ,  H04N19/159 ,  H04N19/172 ,  H04N19/40 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N21/4325 ,  H04N21/4402 ,  H04N21/440281

公开(公告)号：EP1786212A4

公开(公告)日：2011-08-17

申请号：EP05780358

申请日：2005-08-22

申请人： SONY CORP

发明人： FUCHIE TAKAAKI ,  YOSHINARI HIROMI ,  KOYABU KYOHEI

IPC分类号： H04N19/00 ,  H04N5/91 ,  H04N7/24 ,  H04N19/114 ,  H04N19/115 ,  H04N19/126 ,  H04N19/134 ,  H04N19/136 ,  H04N19/137 ,  H04N19/14 ,  H04N19/15 ,  H04N19/152 ,  H04N19/159 ,  H04N19/172 ,  H04N19/196 ,  H04N19/40 ,  H04N19/48 ,  H04N19/503 ,  H04N19/573 ,  H04N19/61 ,  H04N19/625 ,  H04N19/91

CPC分类号： H04N21/23406 ,  H04N19/15 ,  H04N19/194 ,  H04N21/23424 ,  H04N21/44004 ,  H04N21/44016 ,  H04N21/854

公开(公告)号：EP1699244A4

公开(公告)日：2010-04-07

申请号：EP04807712

申请日：2004-12-24

申请人： NEC CORP

发明人： CHONO KEIICHI

IPC分类号： H04N19/50 ,  H03M7/36 ,  H04N19/114 ,  H04N19/115 ,  H04N19/126 ,  H04N19/136 ,  H04N19/137 ,  H04N19/14 ,  H04N19/149 ,  H04N19/152 ,  H04N19/159 ,  H04N19/172 ,  H04N19/177 ,  H04N19/196 ,  H04N19/503 ,  H04N19/51 ,  H04N19/573

CPC分类号： H04N19/577 ,  H04N19/115 ,  H04N19/124 ,  H04N19/157 ,  H04N19/172 ,  H04N19/31 ,  H04N19/573

公开(公告)号：EP1475970A4

公开(公告)日：2006-07-12

申请号：EP03703124

申请日：2003-01-31

申请人： MATSUSHITA ELECTRIC IND CO LTD

发明人： ABE KIYOFUMI ,  KADONO SHINYA ,  HAGAI MAKOTO ,  KONDO SATOSHI

IPC分类号： H04N19/105 ,  G06T9/00 ,  H04N19/00 ,  H04N19/107 ,  H04N19/114 ,  H04N19/115 ,  H04N19/134 ,  H04N19/136 ,  H04N19/162 ,  H04N19/423 ,  H04N19/426 ,  H04N19/46 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/573 ,  H04N19/593 ,  H04N19/70 ,  H04N7/26

CPC分类号： H04N19/00024 ,  H04N19/105 ,  H04N19/114 ,  H04N19/115 ,  H04N19/14 ,  H04N19/149 ,  H04N19/156 ,  H04N19/162 ,  H04N19/164 ,  H04N19/177 ,  H04N19/51 ,  H04N19/573 ,  H04N19/58 ,  H04N19/61

摘要： A moving image coding device (10a) comprises a level analyzer (100a) that determines the maximum number of codable on-screen pixels (Nfpx) based on a level identifier (Lst) indicating a user-specified coding level and the maximum number of stored pixels (Nspx) that can be stored in the picture memory of a decoding device. Based on the maximum number of on-screen pixels (Nfpx) and an input image size (number of vertical pixels (Nhpx) and number of horizontal pixels (Nwpx)), the moving image coding device (10a) determines if an input image can be coded and, at the same time, calculates the maximum number of reference pictures (Nrpn) that is the number of reference candidate pictures that can be referenced during inter-picture predictive coding. A decoding device, which receives a code string from such a moving picture coding device (10a), can always decode the code string properly and can perform inter-picture predictive decoding corresponding to inter-picture predictive coding on the coding side. As a result, it is possible to design the memory area of a coding device and a decoding device compatible with a coding method that does not limit the capacity of the memory area.

公开(公告)号：EP0804034A3

公开(公告)日：1998-05-20

申请号：EP96306812

申请日：1996-09-19

申请人： FUJITSU LTD

发明人： WATANABE HIDEAKI ,  ITOH TAKASHI

IPC分类号： H04N19/50 ,  G06T9/00 ,  H04N19/105 ,  H04N19/114 ,  H04N19/139 ,  H04N19/142 ,  H04N19/172 ,  H04N19/189 ,  H04N19/196 ,  H04N19/423 ,  H04N19/503 ,  H04N19/51 ,  H04N19/56 ,  H04N19/57 ,  H04N19/577 ,  H04N19/61 ,  H04N19/625 ,  H04N19/87 ,  H04N19/91 ,  H04N7/26

CPC分类号： H04N19/577 ,  H04N19/51 ,  H04N19/58

摘要： A method of detecting motion vectors within a predetermined search range for motion-compensation predictive coding is disclosed. The method includes the steps of searching for first motion vectors between two frames which are separated from each other in a time dimension by a first frame distance, selecting a second frame distance of two frames between which picture motion is represented by second motion vectors, making a check whether the predetermined search range covers a predetermined percentage of the second motion vectors, the check using the first motion vectors as estimates of the second motion vectors after compensation for a difference between the first frame distance and the second frame distance, and deciding, based on results of the check, whether to increase a frame distance for prediction.

摘要翻译： 公开了一种在运动补偿预测编码的预定搜索范围内检测运动矢量的方法。 该方法包括以下步骤：搜索在时间维度上彼此分开第一帧距离的两个帧之间的第一运动矢量，选择由第二运动矢量表示图像运动的两帧之间的第二帧距离， 检查所述预定搜索范围是否覆盖所述第二运动矢量的预定百分比，使用所述第一运动矢量作为对所述第一帧距离和所述第二帧距离之间的差进行补偿后的所述第二运动矢量的估计值的检查， 基于检查结果，是否增加帧距离进行预测。