公开(公告)号：EP1891809B1

公开(公告)日：2016-11-23

申请号：EP06744992.6

申请日：2006-05-19

申请人： Entropic Communications, Inc.

发明人： LEE, Wei, P.

IPC分类号： H04N19/527

CPC分类号： H04N19/527

公开(公告)号：EP3029938A1

公开(公告)日：2016-06-08

申请号：EP16150129.1

申请日：2003-03-14

申请人： Nokia Technologies Oy

发明人： LAINEMA, Jani

IPC分类号： H04N19/132 ,  H04N19/139 ,  H04N19/176 ,  H04N19/463 ,  H04N19/527 ,  H04N19/61

CPC分类号： H04N19/527 ,  H04N19/109 ,  H04N19/132 ,  H04N19/139 ,  H04N19/176 ,  H04N19/463 ,  H04N19/52 ,  H04N19/61

摘要： A method of motion-compensated video encoding that enables a video sequence with a global motion component to be encoded in an efficient manner. A video encoder (600) is arranged to assign macroblocks to be coded to specific coding modes including a skip mode, which is used to indicate one of two possible types of macroblock motion: (a) zero motion, or (b) global or regional motion. As each macroblock is encoded, a previously encoded region surrounding the macroblock is examined and the characteristics of motion in that region determined. With the skip mode, the macroblock to be coded and a motion vector describing the global motion or regional motion is associated with the macroblock if the motion in the region is characteristic of global motion or regional motion. If the region exhibits an insignificant level of motion, a zero valued motion vector is associated with the macroblock.

摘要翻译： 一种运动补偿视频编码的方法，其使得能够以有效的方式编码具有全局运动分量的视频序列。 视频编码器（600）被布置为将要编码的宏块分配给包括跳过模式的特定编码模式，所述跳过模式用于指示两种可能类型的宏块运动之一：（a）零运动，或（b）全局或区域 运动。 当每个宏块被编码时，检查围绕宏块的先前编码区域，并确定该区域中的运动特性。 使用跳过模式，如果区域中的运动是全局运动或区域运动的特征，则要被编码的宏块和描述全局运动或区域运动的运动矢量与宏块相关联。 如果该区域表现出微不足道的运动水平，则零值运动矢量与宏块相关联。

公开(公告)号：EP2002649B1

公开(公告)日：2016-01-13

申请号：EP07760255.5

申请日：2007-04-06

申请人： QUALCOMM Incorporated

发明人： NAGARAJ, Raghavendra, C. ,  MALAYATH, Narendranath

IPC分类号： H04N19/527 ,  H04N19/14 ,  H04N5/232

CPC分类号： H04N5/23267 ,  H04N5/23248 ,  H04N5/23254 ,  H04N5/23264 ,  H04N19/14 ,  H04N19/527

公开(公告)号：EP2785064B1

公开(公告)日：2015-08-19

申请号：EP14173996.1

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 ,  H04N19/14 ,  H04N19/17 ,  H04N5/14 ,  H04N19/105 ,  H04N19/172 ,  H04N19/159 ,  H04N19/61 ,  H04N19/103 ,  H04N19/577 ,  H04N19/56 ,  H04N19/503 ,  H04N19/176

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：EP1864502B1

公开(公告)日：2014-09-03

申请号：EP05795066.9

申请日：2005-10-20

申请人： Google Inc.

发明人： CRAWFORD, Andrew ,  ANIL, Kokaram ,  KELLY, Francis ,  DENMAN, Hugh ,  PITIE, Francois

IPC分类号： H04N19/503 ,  H04N19/80 ,  H04N19/527 ,  G06T7/20 ,  H04N5/14

CPC分类号： H04N5/145 ,  G06T7/269 ,  H04N19/527 ,  H04N19/80

公开(公告)号：EP1835747A4

公开(公告)日：2011-02-02

申请号：EP05822685

申请日：2005-12-28

申请人： NIPPON TELEGRAPH & TELEPHONE

发明人： KITAHARA MASAKI ,  KAMIKURA KAZUTO ,  YASHIMA YOSHIYUKI

IPC分类号： H04N19/00 ,  H04N7/36 ,  H04N13/00 ,  H04N13/02 ,  H04N13/04 ,  H04N19/13 ,  H04N19/134 ,  H04N19/136 ,  H04N19/137 ,  H04N19/139 ,  H04N19/176 ,  H04N19/196 ,  H04N19/20 ,  H04N19/463 ,  H04N19/51 ,  H04N19/527 ,  H04N19/597 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/91

CPC分类号： H04N19/91 ,  H04N19/176 ,  H04N19/51 ,  H04N19/597 ,  H04N19/61

摘要： A video encoding method for encoding a plurality of images as a video image. The method includes a reference parallax data setting step of setting reference parallax data which indicates a viewing difference between a first image and an already-encoded second image, in order to encode target encoding data assigned to a predetermined position in the first image; a corresponding position setting step of setting a corresponding position in the second image, which can correspond to the predetermined position, by using the reference parallax data; a code table setting step of setting a code table corresponding to target encoding data assigned to the corresponding position; and a target encoding data encoding step of encoding the target encoding data in the first image by using the code table.

公开(公告)号：EP0898427A4

公开(公告)日：2004-04-28

申请号：EP98900693

申请日：1998-01-22

申请人： MITSUBISHI ELECTRIC CORP

发明人： SEKIGUCHI SHUNICHI ,  ASAI KOHTARO ,  MURAKAMI TOKUMICHI ,  NISHIKAWA HIROFUMI ,  KURODA SHINICHI ,  ISU YOSHIMI ,  HASEGAWA YURI

IPC分类号： H03M7/36 ,  H04N7/24 ,  H04N19/102 ,  H04N19/103 ,  H04N19/105 ,  H04N19/107 ,  H04N19/126 ,  H04N19/13 ,  H04N19/134 ,  H04N19/137 ,  H04N19/139 ,  H04N19/14 ,  H04N19/142 ,  H04N19/146 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/179 ,  H04N19/189 ,  H04N19/196 ,  H04N19/20 ,  H04N19/21 ,  H04N19/23 ,  H04N19/423 ,  H04N19/46 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/527 ,  H04N19/57 ,  H04N19/573 ,  H04N19/577 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/87 ,  H04N19/91 ,  H04N7/50 ,  H04N7/26 ,  H04N7/36

CPC分类号： H04N7/24 ,  H04N19/105 ,  H04N19/127 ,  H04N19/137 ,  H04N19/142 ,  H04N19/179 ,  H04N19/186 ,  H04N19/196 ,  H04N19/23 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/503 ,  H04N19/537 ,  H04N19/573 ,  H04N19/58 ,  H04N19/61 ,  H04N19/87

摘要： To obtain an encoding system capable of predicting a moving picture with a high accuracy in accordance with the details and degree of importance of a scene and nature of motion of the moving picture, said system is provided with a plurality of memories a, b, c in which image data to be referred to are stored, a motion compensating element (5) capable of being operated correspondingly to an arbitrary deformation parameter representing a motion of an image region to be predicted, and adapted to generate an predicted picture by using arbitrary data in these memories a, b, c on the basis of the deformation parameter, and a memory updating element (15) capable of updating the content of not less than one memory out of the memories a, b, c at arbitrary time intervals.

公开(公告)号：EP0987898A4

公开(公告)日：2000-09-13

申请号：EP98923086

申请日：1998-06-02

申请人： HITACHI LTD

发明人： NAKAYA YUICHIRO

IPC分类号： H04N19/50 ,  G06T7/20 ,  H04N19/423 ,  H04N19/46 ,  H04N19/463 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/517 ,  H04N19/523 ,  H04N19/527 ,  H04N19/53 ,  H04N19/54 ,  H04N19/59 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/895 ,  H04N7/32 ,  H04N7/26 ,  H04N7/36 ,  H04N7/50

CPC分类号： H04N19/527 ,  G06T7/223 ,  H04N19/54

摘要： A method for simplifying the arithmetic operation of the global motion compensation and warping prediction in encoding and decoding the image signal of motion compensation. In a process for synthesizing a predicted image (1203) subjected to global motion compensation and formed to predict the present frame image from a previous frame image (1202) by using moving vectors (1205) of representative points which are spaced at spacial intervals having specific features in an image frame, the moving vectors of provisional representative points are determined from the moving vectors (1206) of the representative points by first interpolation/exterpolation processes (1207), and then the moving vectors (1210) of the pixels are determined from the moving vectors (1208) of the provisional representative points by second interpolation/exterpolation processes (1209). Since the division for synthesizing the predicted image is substituted by a shift calculation with a small number of bits shifted, the processing with a computer or an exclusive hardware can be simplified.

公开(公告)号：EP4371301A1

公开(公告)日：2024-05-22

申请号：EP21752371.1

申请日：2021-07-15

申请人： Google LLC

发明人： CHEN, Yue ,  WANG, Yu ,  SU, Hui ,  MUKHERJEE, Debargha ,  WANG, Yunqing

IPC分类号： H04N19/527 ,  H04N19/53

CPC分类号： H04N19/527 ,  H04N19/53

公开(公告)号：EP4122203A1

公开(公告)日：2023-01-25

申请号：EP21771954.1

申请日：2021-03-19

申请人： Beijing Dajia Internet Information Technology Co., Ltd.

发明人： CHEN, Wei ,  XIU, Xiaoyu ,  CHEN, Yi-Wen ,  MA, Tsung-Chuan ,  JHU, Hong-Jheng ,  WANG, Xianglin ,  YU, Bing

IPC分类号： H04N19/527 ,  H04N19/70 ,  H04N19/513 ,  H04N19/157 ,  H04N19/176