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71. 发明公开

EP1057342A1 ADAPTIVE QUANTIZER IN A MOTION ANALYSIS BASED BUFFER REGULATION SCHEME FOR VIDEO COMPRESSION 审中-公开
标题翻译：自适应量化的运动估值END DATA BUFFER控制系统进行视频压缩
公开(公告)号：EP1057342A1
公开(公告)日：2000-12-06
申请号：EP99965485.8
申请日：1999-12-14
申请人： Koninklijke Philips Electronics N.V.
发明人： TZOU, Shing-Chi , WANG, Zhiyong, W. , LEE, Janwun, L.
IPC分类号： H04N7/50 , H04N7/30
CPC分类号： H04N19/17 , H04N19/124 , H04N19/139 , H04N19/152 , H04N19/162 , H04N19/172 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/503 , H04N19/61
摘要： A method and apparatus for processing and encoding video data is presented that allocates bandwidth and image quality in dependence upon the relative speed of motion of objects in a video sequence. Fast moving objects are allocated less quality, or precision, than slower moving or stationary objects. The quantization step size is dependent upon the magnitude of the motion vector associated with each block in each frame and upon the location of each block in each frame, providing more precision to a central area of each frame. A motion activity map is created to identify areas of higher precisions based upon the location and motion associated with each block dependence. The sets of parameters for effecting the desired quality levels are predefined, and include an initial value and bounds for the quantizing factor and could be adjustable based upon user's preference.

72. 发明授权

EP0620687B1 Encoding method and apparatus 失效
标题翻译：编码装置和方法
公开(公告)号：EP0620687B1
公开(公告)日：2000-07-12
申请号：EP94302625.2
申请日：1994-04-13
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Jo, Jae Moon
IPC分类号： H04N7/30 , H04N7/50 , H04N7/32
CPC分类号： H04N19/179 , H04N19/126 , H04N19/14 , H04N19/146 , H04N19/152 , H04N19/154 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/61

73. 发明授权

EP0469835B1 Image processing apparatus and method 失效
公开(公告)号：EP0469835B1
公开(公告)日：1998-09-30
申请号：EP91306942.3
申请日：1991-07-29
申请人： CANON KABUSHIKI KAISHA
发明人： Honma, Hideo , Ishikawa, Hisashi , Miyake, Nobutaka , Nagashima, Yoshitake , Saito, Takashi
IPC分类号： G06T9/00 , H04N7/30 , H04N1/415
CPC分类号： H04N19/436 , H04N19/124 , H04N19/126 , H04N19/13 , H04N19/146 , H04N19/15 , H04N19/152 , H04N19/164 , H04N19/176 , H04N19/192 , H04N19/196 , H04N19/197 , H04N19/60 , H04N19/91

74. 发明公开

EP0830030A2 Video and audio data compression system 失效
标题翻译：音频和视频压缩系统
公开(公告)号：EP0830030A2
公开(公告)日：1998-03-18
申请号：EP97115336.6
申请日：1997-09-04
申请人： NEC CORPORATION
发明人： Morishita, Takuya
IPC分类号： H04N7/26
CPC分类号： H04N7/52 , H04N19/105 , H04N19/124 , H04N19/13 , H04N19/137 , H04N19/146 , H04N19/152 , H04N19/172 , H04N19/177 , H04N19/192 , H04N19/197 , H04N19/60 , H04N19/70 , H04N19/91
摘要： The video and audio data compression system comprises compression processing issuing means for issuing a compression processing command according to a predetermined order, a compression processing device for performing compression processing of moving pictures (video data) and sounds (audio data) (hereinafter referred to as "video and audio data"), and means for interpreting the compression processing commands issued from the compression processing issuing means to control the compression processing device.
In particular, the means for controlling the compression processing device comprises means for interpreting the compression processing command issued from the compression processing issuing means to control the compression processing device, means for setting compression parameters for video and audio data, means for calculating and notifying the progression degree of the compression processing, and means for controlling input/output of the video and audio data.
This system enables the construction of a system for readily compressing moving pictures (video data) and sounds (audio data) even without certain knowledge of the compression of the video and audio data.

75. 发明公开

EP0790580A2 System and method for compression of digital images using motion estimation 失效
标题翻译：系统和Verfahren zur digitalen Bildkompression mitBewegungsschätzung
公开(公告)号：EP0790580A2
公开(公告)日：1997-08-20
申请号：EP97300913.7
申请日：1997-02-13
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Butter, Adrian Stephen , Stein, Charles John , Svec, Ronald Steven
IPC分类号： G06T9/00
CPC分类号： H04N19/86 , H04N19/105 , H04N19/112 , H04N19/137 , H04N19/139 , H04N19/146 , H04N19/149 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/503 , H04N19/51 , H04N19/527 , H04N19/61
摘要： Abstract A method of and apparatus for identifying a Dual Prime motion estimation best match and generating motion vectors pertaining thereto for inter-picture video compression in a motion picture having images of F1 and F2 parities. The Dual Prime method of motion estimation described herein includes a method of generating motion vectors. The motion vectors point from a macroblock in a current field to a macroblock in a past field for inter-picture video compression in a motion picture having images of F1 and F2 parities. The first step in the method is defining a macroblock in a parity field of the current picture. Next, the preceding field of the same or opposite parity is searched to find a first best match macroblock in the preceding field. Once a best match macroblock is found, a vector is formed from the current macroblock in the current parity field to the first best match macroblock in the preceding parity field. This vector is scaled so that it refers to a second dual prime macroblock in the opposite parity field, that is the parity field of opposite parity with respect to the first best match macroblock which defines the center of a dual prime search window. Then, the average of the first best match macroblock and the set of second dual prime macroblocks in the dual prime search window is taken and the search window is searched to determine the best match dual prime macroblock. The search is typically conducted at half pixel locations inside a four square pixel dual prime search window. The appropriate dual prime motion vector and differential motion vector (dmv) are formed. These are motion vectors which point to both the first best match macroblock and the best match dual prime macroblock.
摘要翻译：摘要用于识别双重素质运动估计的方法和装置在具有F1和F2奇偶校验的图像的运动图像中最佳匹配并产生用于图像间视频压缩的运动矢量。本文描述的双重运动估计方法包括产生运动矢量的方法。在具有F1和F2奇偶校验的图像的运动图像中，运动矢量从当前场中的宏块指向用于画面间视频压缩的过去场中的宏块。该方法的第一步是定义当前图像的奇偶校验字段中的宏块。接下来，搜索相同或相反奇偶校验的前一个字段以在前一字段中找到第一最佳匹配宏块。一旦找到了最佳匹配宏块，则从当前奇偶校验字段中的当前宏块到先前奇偶校验字段中的第一最佳匹配宏块形成向量。该向量被缩放，使得其指向相对奇偶校验字段中的第二双优先宏块，即相对于定义双重搜索窗口的中心的第一最佳匹配宏块的相对奇偶校验的奇偶校验字段。然后，获取双重搜索窗口中的第一最佳匹配宏块和第二双优先宏块的平均值，并搜索搜索窗口以确定最佳匹配双优先宏块。搜索通常在四平方像素双重搜索窗口内的半个像素位置进行。形成适当的双质量运动矢量和微分运动矢量（dmv）。这些是指向第一最佳匹配宏块和最佳匹配双优先宏块的运动矢量。

76. 发明公开

EP0469835A2 Image processing apparatus and method 失效
标题翻译： Verfahren undGerätzur Bildverarbeitung。
公开(公告)号：EP0469835A2
公开(公告)日：1992-02-05
申请号：EP91306942.3
申请日：1991-07-29
申请人： CANON KABUSHIKI KAISHA
发明人： Honma, Hideo , Ishikawa, Hisashi , Miyake, Nobutaka , Nagashima, Yoshitake , Saito, Takashi
IPC分类号： G06F15/64 , H04N7/133
CPC分类号： H04N19/436 , H04N19/124 , H04N19/126 , H04N19/13 , H04N19/146 , H04N19/15 , H04N19/152 , H04N19/164 , H04N19/176 , H04N19/192 , H04N19/196 , H04N19/197 , H04N19/60 , H04N19/91
摘要： This disclosure relates to an apparatus and method for orthogonally transforming and quantizing, in block units, inputted image data, and subsequently performing image compression by variable-length coding the data. In particular, control is performed in such a manner that the compressed information quantity attains a predetermined quantity when variable-length coding is carried out. Optimum image compression and expansion are performed by scanning data quantized upon taking into consideration the output characteristics of an image output unit and human visual characteristics. Further, by selecting an optimum quantization table in coding or selecting optimum results from a plurality of coded results, management of the image memory is facilitated, and image compression and expansion featuring ease of image editing and treatment can be performed while image quality is maintained. Furthermore, control is executed in such a manner that data access to the image memory attains a predetermined value so as to make possible the combining of images in the image memory.
摘要翻译：本公开涉及以块为单位对输入的图像数据进行正交变换和量化的装置和方法，并且随后通过对数据进行可变长度编码来执行图像压缩。具体而言，在进行可变长度编码时，以压缩信息量达到规定量的方式进行控制。考虑到图像输出单元的输出特性和人类视觉特性，通过扫描量化的数据来执行最佳图像压缩和扩展。此外，通过从多个编码结果中选择最佳量化表或选择最佳结果，便于图像存储器的管理，并且可以在保持图像质量的同时执行图像编辑和处理容易的图像压缩和扩展。此外，以这样的方式执行控制，使得对图像存储器的数据访问达到预定值，使得可以在图像存储器中组合图像。

77. 发明公开

EP4404558A2 IMAGE DECODING DEVICE, IMAGE ENCODING DEVICE 审中-实审
公开(公告)号：EP4404558A2
公开(公告)日：2024-07-24
申请号：EP24181143.9
申请日：2012-06-22
申请人： Sun Patent Trust
发明人： SASAI, Hisao , NISHI, Takahiro , SHIBAHARA, Youji , SUGIO, Toshiyasu , TANIKAWA, Kyoko , MATSUNOBU, Toru
IPC分类号： H04N19/13
CPC分类号： H04N19/197 , H04N19/176 , H04N19/13 , H04N19/463 , H04N19/157
摘要： The image decoding method includes: determining a context for use in a current block, from among a plurality of contexts (S204); and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context (S210), wherein in the determining (S204): the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block (S206); and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type (S207).

78. 发明授权

EP3703369B1 SAMPLE REGION MERGING 有权转让
公开(公告)号：EP3703369B1
公开(公告)日：2024-07-24
申请号：EP20155684.2
申请日：2011-04-13
IPC分类号： H04N19/196 , H04N19/52 , H04N19/139 , H04N19/176 , H04N19/119 , H04N19/46 , H04N19/61 , H04N19/463 , H04N19/96 , H04N19/14 , H04N19/186 , H04N19/105 , H04N19/147
CPC分类号： H04N19/197 , H04N19/52 , H04N19/139 , H04N19/176 , H04N19/119 , H04N19/46 , H04N19/196 , H04N19/61 , H04N19/96 , H04N19/463 , H04N19/14 , H04N19/186 , H04N19/105 , H04N19/147

79. 发明公开

EP4397040A1 INTRA PREDICTION MODES SIGNALING 审中-实审
公开(公告)号：EP4397040A1
公开(公告)日：2024-07-10
申请号：EP22865647.6
申请日：2022-09-05
申请人： Beijing Dajia Internet Information Technology Co., Ltd.
发明人： CHEN, Yi-Wen , XIU, Xiaoyu , WANG, Xianglin , YU, Bing , JHU, Hong-Jheng
IPC分类号： H04N19/157 , H04N19/11 , H04N19/593 , H04N19/70 , H04N19/132 , H04N19/44
CPC分类号： H04N19/593 , H04N19/11 , H04N19/176 , H04N19/14 , H04N19/197

80. 发明公开

EP4397038A1 A MULTI-TRY ENCODING OPERATION FOR STREAMING APPLICATIONS 审中-实审
公开(公告)号：EP4397038A1
公开(公告)日：2024-07-10
申请号：EP21783643.6
申请日：2021-09-03
申请人： Google LLC
发明人： HONG, Danny , ZHAO, Yinqing , TAHASILDAR, Ramachandra , CHONG, In Suk
IPC分类号： H04N19/124 , H04N19/14 , H04N19/146 , H04N19/172 , H04N19/192 , H04N19/196
CPC分类号： H04N19/124 , H04N19/14 , H04N19/146 , H04N19/172 , H04N19/192 , H04N19/197

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