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31. 发明授权

US5432556A Coding apparatus 失效
标题翻译：编码装置
公开(公告)号：US5432556A
公开(公告)日：1995-07-11
申请号：US189202
申请日：1994-01-31
申请人： Yoshiko Hatano , Ken Onishi
发明人： Yoshiko Hatano , Ken Onishi
IPC分类号： G06T9/00 , H04N7/26 , H04N7/30 , H04N7/12
CPC分类号： H04N19/649 , H04N19/126 , H04N19/14 , H04N19/16 , H04N19/176 , H04N19/18 , H04N19/60 , H04N19/62 , H04N19/98 , H04N19/124 , H04N19/13 , H04N19/146 , H04N19/152 , H04N19/91
摘要： A coding apparatus reduces a digital image signal. The coding apparatus includes a block formatting circuit for dividing the digital image signal into blocks of a plurality of picture elements, an orthogonal transforming circuit for transforming the blocks of plurality of picture elements into a plurality of coefficients, an adaptive quantizing unit for quantizing the plurality of coefficients with a quantization table, a calculating circuit that divides each block of the digital image signal into a plurality of sub-blocks and obtains a plurality of indexes, and a detecting circuit that obtains a maximum index and a minimum index from the plurality of indexes. Each index indicates a degree of change between the picture elements in a sub-block of the plurality of sub-blocks. The coding apparatus further includes a subtracting unit that obtains a difference between the maximum index and the minimum index, and a selecting unit that obtains the quantization table from a plurality of quantization tables according to the minimum index and the difference. As a result, the image quality of the background having little change in the signal is kept good.
摘要翻译：编码装置减少数字图像信号。该编码装置包括用于将数字图像信号分割为多个图像元素的块格式化电路，用于将多个图像元素的块变换成多个系数的正交变换电路，用于量化多个像素的自适应量化单元具有量化表的系数的计算电路，将数字图像信号的每个块分割成多个子块并获得多个索引的计算电路，以及从多个子帧获得最大索引和最小索引的检测电路索引。每个索引指示多个子块的子块中的图像元素之间的变化程度。编码装置还包括获取最大索引和最小索引之间的差的减法单元，以及根据最小索引和差异从多个量化表中获取量化表的选择单元。结果，信号的变化小的背景的图像质量保持良好。

32. 发明授权

US07751474B2 Image encoding device and image encoding method 失效
标题翻译：图像编码装置和图像编码方法
公开(公告)号：US07751474B2
公开(公告)日：2010-07-06
申请号：US10545617
申请日：2003-11-27
申请人： Junko Shinohara , Yoshiko Hatano
发明人： Junko Shinohara , Yoshiko Hatano
IPC分类号： H04N7/12
CPC分类号： H04N19/115 , H04N19/124 , H04N19/132 , H04N19/142 , H04N19/152 , H04N19/172 , H04N19/20
摘要： An encoding controller (106) generates and outputs a current skip signal (SKi) to a switch circuit (108), and outputs a quantization parameter (Qp) for controlling a code amount after the encoding processing of a current VOP by an encoder (103) using a current scene change signal (SCi), to an encoder (106). The current scene change signal (SCi) is set on the basis of the current VOP, a previous scene change signal (SCi-1), and a previous skip signal (SKi-1).
摘要翻译：编码控制器（106）生成并将当前跳过信号（SKi）输出到开关电路（108），并且通过编码器（103）输出用于控制当前VOP的编码处理之后的代码量的量化参数（Qp））使用当前场景改变信号（SCi）到编码器（106）。基于当前VOP，前一场景改变信号（SCi-1）和先前的跳过信号（SKi-1）来设置当前场景改变信号（SCi）。

33. 发明授权

US07433408B2 Encoding system and encoding method 失效
标题翻译：编码系统和编码方法
公开(公告)号：US07433408B2
公开(公告)日：2008-10-07
申请号：US10834264
申请日：2004-04-29
申请人： Yoshiko Hatano , Takashi Nakao , Junko Kijima , Mamoru Inamura , Kazuhiro Sugiyama
发明人： Yoshiko Hatano , Takashi Nakao , Junko Kijima , Mamoru Inamura , Kazuhiro Sugiyama
IPC分类号： H04N7/12 , H04N11/02 , G06K9/36
CPC分类号： H04N19/198 , H04N19/115 , H04N19/15 , H04N19/152 , H04N19/157 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/20 , H04N19/61
摘要： An encoding system capable of preventing the overflow of a buffer and performing the encoding of a VOP within a predetermined time period even where the processing time period necessary for encoding each macroblock is not constant. In order to provide the encoding system, the maximum number of bits Tmax is set for each VOP, and the output of encoding unit and the output of fixed code output unit is switched and outputted so that the number of bits Sc of the VOP may not exceed the Tmax.
摘要翻译：一种编码系统，即使在编码每个宏块所需的处理时间段不是恒定的情况下，也能够在预定的时间周期内防止缓冲器的溢出并执行VOP的编码。为了提供编码系统，为每个VOP设置最大位数Tmax，并且切换并输出编码单元的输出和固定代码输出单元的输出，使得VOP的位数Sc不能超过Tmax。

34. 发明授权

US06922490B2 Image compression of selected regions based on transmission bit rate, motion, and/or region information, and bit selection before compression based on transmission bit rate 失效
标题翻译：基于传输比特率，运动和/或区域信息的所选区域的图像压缩，以及基于传输比特率的压缩之前的比特选择
公开(公告)号：US06922490B2
公开(公告)日：2005-07-26
申请号：US09816324
申请日：2001-03-26
申请人： Tomoaki Ikeda , Mamoru Inamura , Junko Kijima , Yoshiko Hatano , Kazuhiro Sugiyama
发明人： Tomoaki Ikeda , Mamoru Inamura , Junko Kijima , Yoshiko Hatano , Kazuhiro Sugiyama
IPC分类号： H04N19/50 , G06T9/00 , H03M7/36 , H04N19/12 , H04N19/132 , H04N19/134 , H04N19/136 , H04N19/137 , H04N19/139 , H04N19/176 , H04N19/196 , H04N19/51 , H04N19/625 , H04N19/91 , G06K9/36
CPC分类号： H04N19/20 , H04N19/139 , H04N19/164 , H04N19/17 , H04N19/46 , H04N19/61
摘要： An image encoding device is provided that can transmit encoded image data without lowering the frame rate even when the transmission speed of the transmission path is lowered. An encoded region designator selects the region that is to be encoded, in the input image, depending on the bit rate of the transmission path. Only such a region that is designated by the encoded region designator is encoded. The encoded region designator may be one which selects the region that is to be encoded, according to the bit rate of the transmission path, and the motion vector detected by the image encoding circuit. As an alternative, an encoded region designator may be used which selects the region that is to be encoded according to the bit rate of the transmission path, and the information on the designated region supplied from the outside. Also, a selector limiting the number of bits of the signal from the image signal input circuit may be provided, and when the bit rate of the transmission path is lowered, the number of bits of the input image may be adaptively switched.
摘要翻译：提供了即使当传输路径的传输速度降低时也可以传输编码图像数据而不降低帧速率的图像编码装置。编码区域指示符根据传输路径的比特率在输入图像中选择要被编码的区域。只有由编码区域指示符指定的这样的区域被编码。编码区域指示符可以是根据传输路径的比特率和由图像编码电路检测到的运动矢量来选择要被编码的区域的区域。作为替代，可以使用编码区域指示符，其根据传输路径的比特率以及从外部提供的指定区域上的信息来选择要被编码的区域。此外，可以提供限制来自图像信号输入电路的信号的位数的选择器，并且当传输路径的比特率降低时，可以自适应地切换输入图像的比特数。

35. 发明授权

US06931069B2 Coding device and coding method 有权
标题翻译：编码设备和编码方法
公开(公告)号：US06931069B2
公开(公告)日：2005-08-16
申请号：US09800895
申请日：2001-03-08
申请人： Yoshiko Hatano , Junko Kijima , Mamoru Inamura , Tomoaki Ikeda , Kazuhioro Sugiyama
发明人： Yoshiko Hatano , Junko Kijima , Mamoru Inamura , Tomoaki Ikeda , Kazuhioro Sugiyama
IPC分类号： H04N7/24 , H04N7/26 , H04N7/30 , H04N7/50 , H04N7/12 , H04N11/02
CPC分类号： H04N21/23406 , H04N19/115 , H04N19/139 , H04N19/15 , H04N19/176 , H04N19/18 , H04N19/186 , H04N19/60 , H04N19/61 , H04N19/70 , H04N19/91 , H04N21/235 , H04N21/435 , H04N21/44004
摘要： To provide a coding device which does not generate a video packet having only a stuffing but can insert a minimum stuffing to prevent an underflow of a buffer in the case in which a video packet has a length limit. A minimum code volume (Tmin) is set for each VOP and a break of a video packet and an insertion of a stuffing are determined such that a code volume (Sc) of the VOP is not smaller than the minimum code volume (Tmin).
摘要翻译：为了提供一种编码装置，其不产生仅具有填充的视频分组，但是可以插入最小填充以在视频分组具有长度限制的情况下防止缓冲器的下溢。为每个VOP设置最小代码量（Tmin），并且确定视频分组的中断并且确定填充的插入，使得VOP的代码量（Sc）不小于最小代码量（Tmin）。

36. 发明授权

US06829062B2 Color conversion device and color conversion method 有权
标题翻译：颜色转换装置和颜色转换方法
公开(公告)号：US06829062B2
公开(公告)日：2004-12-07
申请号：US10167462
申请日：2002-06-13
申请人： Masako Asamura , Shuichi Kagawa , Yoshiko Hatano , Hiroaki Sugiura , Kazuya Maeshima , Takashi Okamoto
发明人： Masako Asamura , Shuichi Kagawa , Yoshiko Hatano , Hiroaki Sugiura , Kazuya Maeshima , Takashi Okamoto
IPC分类号： G06K1500
CPC分类号： H04N1/6002 , H04N1/6027
摘要： By changing coefficients of second-order and first-order calculation terms relating to respective hues, and first-order calculation terms in the form of comparison-result data relating to respective inter-hue areas, only the target hue or inter-hue area among the six hues of red, blue, green, yellow, cyan, and magenta, and the six inter-hue areas can be varied, without affecting other hues and inter-hue areas. Thus, the six hues and six inter-hue areas can be corrected independently, and the large-capacity memory is not required.
摘要翻译：通过改变与各个色相相关的二阶和一阶计算项的系数，以及与各个色调区相关的比较结果数据形式的一阶计算项，仅仅是目标色相或色间间的区域，红色，蓝色，绿色，黄色，青色和品红色的六种色调，六种色相区域可以变化，而不影响其他色调和色间区域。因此，可以独立地校正六个色调和六个色间区域，并且不需要大容量存储器。

37. 发明授权

US06766049B2 Color conversion device and method 失效
公开(公告)号：US06766049B2
公开(公告)日：2004-07-20
申请号：US09349946
申请日：1999-07-08
申请人： Masako Asamura , Shuichi Kagawa , Yoshiko Hatano , Hiroaki Sugiura
发明人： Masako Asamura , Shuichi Kagawa , Yoshiko Hatano , Hiroaki Sugiura
IPC分类号： G06K900
CPC分类号： H04N9/67 , H04N1/6016 , H04N1/6075
摘要： A color conversion device and method are provided in which six hues and inter-hue areas are corrected independently, and the conversion characteristics can be changed flexibly, and which does not require a large-capacity memory. Coefficients of second-order and first-order calculation terms relating to the respective hues, first-order calculation term using comparison-result data relating to the respective inter-hue areas, and product terms based on the comparison-result data and the hue data are changed so as to change the target hue or inter-hue area, without influencing other hues or inter-hue areas.

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