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公开(公告)号：EP0186444A3
公开(公告)日：1987-07-15
申请号：EP85309269
申请日：1985-12-19
申请人： SONY CORPORATION
发明人： Kondo, Tetsujiro
IPC分类号： H04N07/13
CPC分类号： H04N19/98
摘要： Coding apparatus for coding digital video data in the form of a block data to a compressed video data, comprises first detecting means for detecting a maximum value of the digital video data of plural picture elements in said block, second detecting means for detecting a minimum value of the digital video data of plural picture elements in said block, means for generating a dynamic range information of the block from said maximum and minimum values, means for subtracting said minimum value from each of the digital data to generate modified digital video data, means for encoding said modified digital video data with the fixed digitized bit number less than that of original digital video data, and transmitting means for transmitting the output of said encoding means and an additional code per one block formed of at least two of said maximum value, minimum value, and a signal according to said dynamic range information.
摘要翻译： 用于以块数据形式将数字视频数据编码为压缩视频数据的编码装置包括用于检测所述块中的多个图像元素的数字视频数据的最大值的第一检测装置，用于检测最小值的第二检测装置 在所述块中的多个图像元素的数字视频数据的装置，用于从所述最大值和最小值生成块的动态范围信息的装置，用于从每个数字数据中减去所述最小值以产生修改数字视频数据的装置， 用于利用小于原始数字视频数据的固定数字化比特数对所述修改的数字视频数据进行编码;以及发送装置，用于发送所述编码装置的输出和每个块的附加代码，所述附加代码由所述最大值中的至少两个形成， 最小值和根据所述动态范围信息的信号。
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公开(公告)号：EP0185533A3
公开(公告)日：1987-07-15
申请号：EP85309127
申请日：1985-12-16
申请人： SONY CORPORATION
发明人： Kondo, Tetsujiro
IPC分类号： H04N07/13
CPC分类号： H04N19/98
摘要： Coding apparatus for coding digital video data in the form of a block data to a compressed video data, comprises first detecting means for detecting a maximum value of the digital video data of plural picture elements in said block, second detecting means for detecting a minimum value of the digital video data of plural picture elements in said block, means for generating a dynamic range information of the block from said maximum and minimum values, means for subtracting said minimum value from each of the digital data to generate modified digital video data, means for encoding said modified digital video data with the fixed digitized bit number less than that of original digital video data, and transmitting means for transmitting the output of said encoding means and an additional code per one block formed of at least two of said maximum value, minimum value, and a signal according to said dynamic range information.
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3.发明公开
公开(公告)号：EP0095560A3
公开(公告)日：1987-02-04
申请号：EP83102118
申请日：1983-03-04
IPC分类号： H04N07/13
摘要： in an image processing system, a method is shown for efficiently transmitting data representing picutre information in fields subsequent to a first field and for suppressing motion induced flicker in the processed image. Using previously processed first field data which is used to predict values for picture elements in subsequent fields, a gradient value is calculated which indicates relative picture activity. A difference value for the picture elements in the subsequent fields is calculated and is limited in magnitude by the gradient value for each picture element. The limited difference value is encoded as a function of previous difference value and transmitted to a remote location for decoding and picture reconstruction and display.
摘要翻译： 在图像处理系统中，示出了用于在第一场之后的场中有效地发送表示图像信息的数据并且用于抑制经处理的图像中的运动引起的闪烁的方法。 使用用于预测后续字段中的图像元素的先前处理的第一场数据，计算指示相对图像活动的梯度值。 计算后续字段中的图像元素的差值，并且在幅度上限制每个图像元素的梯度值。 有限差分值被编码为先前差值的函数，并被发送到远程位置用于解码和图像重建和显示。
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公开(公告)号：EP0089919A3
公开(公告)日：1987-01-21
申请号：EP83730031
申请日：1983-03-18
IPC分类号： H04N07/13
CPC分类号： H04N19/503
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5.发明公开
公开(公告)号：EP0120806A3
公开(公告)日：1986-07-30
申请号：EP84730024
申请日：1984-03-16
发明人： Heydt, Günter , Lukanek, Frank , Teich, Georg
CPC分类号： H04N21/2365 , H04J2203/0064 , H04J2203/0089 , H04N21/4347 , H04Q11/0478
摘要： In der Teilnehmerebene soll ein großes Angebot an Schmal- und Breitbanddiensten möglich sein. Deren Tren nung kann beispielsweise mit Hilfe der Wellenlängen- Multiplex-Technik erfolgen.
Für Bewegtbildkanäle (Farb-TV, 625 Zeilen) werden etwa je 70 Mbit/s benötigt, für Bewegtbilder mit höherer Auflösing (HDTV) etwa die vierfache Bitrate, also 280 Mbit/s. Ein Mehr kanalsystem mit Zeitteilung hierfür erfordert verhältnismäßig geringen schaltungstechnischen Aufwand, wenn die einzel nen Bitströme in bitserieller Form vorliegen und in dieser Form voneinander leicht getrennt werden können. Dazu dienen die erfindungsgemäßen Kanalwähler. Sie bestehen im wesentlichen aus einer bistabilen Selektorschaltung und einer Taktversorgung, mit denen der betreffende Bewegtbild kanal selektiert und dem Endgerät zugeführt wird. Zur Takt versorgung dienen Zeitlagendetektoren, mit denen die betref fende Zeitlage bestimmt wird. Dies geschieht streng hierar chisch, stochastisch oder in kontinuierlich aufeinander folgenden Schritten, bis die dem gewählten Kanal zugeord nete Zeitlage erreicht ist. Das Teilerverhältnis ist für TV (der zeitiger Standard) und HDTV einstellbar.摘要翻译： 目的是在用户层面提供大范围的窄带和宽带服务。 这些可以例如通过波长复用技术分离。 对于每个通道需要大约70Mbit / s的运动图像通道（颜色T.V.，625行），而对于更高分辨率的运动图像服务（HDTV），需要大约四倍的比特率，即280Mbit / s。 如果单个位流是串行形式并且可以容易地以这种形式彼此分离，则具有时分的多通道系统对于该目的的电路需要相对较小的支出。 用于此目的的本发明的通道选择器基本上由双稳态选择器电路和用于选择所需运动图像通道并将其传递到端子的时钟脉冲电源组成。 用于确定所需时隙的时隙检测器用于时钟脉冲供应。 这是以严格的分级或随机方式完成的，或者连续地按顺序进行，直到达到所选频道的时隙为止。 可以为电视（现有标准）和高清电视设置分频比。
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6.发明公开Encoder and decoder of variable-length messages for data transmission systems 失效数据传输系统的可变长度消息的编码器和解码器
公开(公告)号：EP0113446A3
公开(公告)日：1985-11-13
申请号：EP83112334
申请日：1983-12-08
IPC分类号： H03M07/40 , H04N07/13 , H04N07/137
CPC分类号： H04N21/434 , H04N7/54 , H04N7/56 , H04N19/503 , H04N21/236
摘要： Variable-length message encoder, apt to operate on digital signals, endowed with reduction codes and synchronism signals, to effect a redundancy reduction, and message decoder, apt to separate and expand the above signals, after extracting them from parallel data blocks, obtained from a flow transmitted via a digital channel. The most significant figures are Figure 2 and Figure 4.
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7.发明公开Circuit arrangement for the swift detection of the greatest difference among three represented digital values 失效用于SWIFT检测三个代表性数字值之间最大差异的电路布置
公开(公告)号：EP0144066A3
公开(公告)日：1985-07-17
申请号：EP84114395
申请日：1984-11-28
IPC分类号： H04N07/13
CPC分类号： H04N19/124 , H04N19/50
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公开(公告)号：EP0255289A3
公开(公告)日：1988-08-31
申请号：EP87306488
申请日：1987-07-22
申请人： SONY CORPORATION
发明人： Kondo, Tetsujiro
IPC分类号： H04N07/13 , H04N07/137
CPC分类号： H04N19/98 , G06T7/223 , G06T2207/10016 , H04N19/503
摘要： In a high efficiency encoding system according to the invention, a picture is divided in many three-dimensional blocks, or blocks consisting of n areas belonging to each of n frames continuous in terms of time. The movement of the picture is decided in each block to develop movement information. The picture element number of each block is sub-sampled into (1/m), and the phases are sequentially shifted with respect to m blocks. Data of picture elements thinned by sub-sampling (i.e., not transmitted) are decoded, while picture data of a still portion is decoded excellently by the combination of sub-sampling patterns.
摘要翻译： 在根据本发明的高效率编码系统中，将图像划分成许多三维块，或者由属于n个帧中的n个帧的时间段连续的n个区域组成的块。 在每个块中决定图片的移动来开发运动信息。 每个块的像素号被子采样为（1 / m），相位相对于m个块依次移位。 通过子采样（即，未发送）而减薄的图像元素的数据被解码，而静态部分的图像数据通过子采样图案的组合被非常好地解码。
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9.发明公开
公开(公告)号：EP0209483A3
公开(公告)日：1988-08-31
申请号：EP86730089
申请日：1986-05-23
发明人： Kliem, Helmut, Dr.
CPC分类号： H04J3/04 , H04J3/07 , H04N7/56 , H04N19/152 , H04N19/50
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10.发明公开Method of and device for storing three-dimensional digital signals subjected to orthogonal transformation 失效用于存储受正向转换影响的三维数字信号的方法和装置
公开(公告)号：EP0107203A3
公开(公告)日：1985-12-04
申请号：EP83110615
申请日：1983-10-24
CPC分类号： G06F12/0207 , H04N19/60 , H04N19/62 , H04N19/649
摘要： Method of storing signals consisting of a succession of digital samples with three-dimensional structure which have already been bidimensionally transformed, and which are subjected to the transformation along the third dimension requiring the contemporaneous availability of samples of corresponding positions, belonging to Z successive bidimensional groups. The method provides a three-dimensional memory structure of Z planes each having the capacity of a group of samples, and the use of only two addressing modes of said memory alternating every Z groups; the first mode provides successive positions of the various planes to be addressed in sequence, the second mode provides corresponding positions of Z planes to be addressed with increments by Z on each plane. During each addressing, a reading operation occurs followed by a writing operation of a new sample in the just-read position. A device is also described for the implementation of the method.
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