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31. 发明授权

US5767986A Picture encoding apparatus and method 失效
标题翻译：图像编码装置及方法
公开(公告)号：US5767986A
公开(公告)日：1998-06-16
申请号：US411600
申请日：1995-07-20
申请人： Tetsujiro Kondo , Yasuhiro Fujimori , Kunio Kawaguchi
发明人： Tetsujiro Kondo , Yasuhiro Fujimori , Kunio Kawaguchi
IPC分类号： G06T9/00 , H04N7/26 , H04N7/12 , H04N1/41 , H04N1/419
CPC分类号： H04N19/98 , H04N19/115 , H04N19/146 , H04N19/61 , H04N19/63
摘要： A picture encoding apparatus and the method in which the quantization step width of the lower hierarchy data having a resolution higher than that of the upper hierarchy data is determined for each predetermined block of respective hierarchy data based on the quantization step width determined by the upper hierarchy data having a low resolution, so that the additional code indicating the characteristics of quantizer can be omitted thereby the compression efficiency can be improved and the deterioration of picture quality can be reduced when picture data is hierarchical-encoded.
摘要翻译： PCT No.PCT / JP94 / 01426 Sec。 371日期1995年7月20日 102（e）1995年7月20日PCT PCT 1994年8月30日PCT公布。公开号WO95 / 07005 日期：1995年3月9日一种图像编码装置及其方法，其中基于量化步长确定每个分级数据的预定块，分辨率高于上层数据的下层数据的量化步长由具有低分辨率的上层数据确定，使得可以省略表示量化器的特性的附加代码，从而可以提高压缩效率，并且当图像数据被分层编码时可以降低图像质量的劣化。

32. 发明授权

US5703652A Information signal encoding system and method for adaptively encoding an information signal 失效
标题翻译：用于对信息信号进行自适应编码的信息信号编码系统和方法
公开(公告)号：US5703652A
公开(公告)日：1997-12-30
申请号：US685087
申请日：1996-07-23
申请人： Tetsujiro Kondo , Yasuhiro Fujimori , Kenji Takahashi , Kunio Kawaguchi
发明人： Tetsujiro Kondo , Yasuhiro Fujimori , Kenji Takahashi , Kunio Kawaguchi
IPC分类号： G06T9/00 , H04N7/26 , H04N7/12
CPC分类号： H04N19/98 , H04N19/39
摘要： An input digital information signal is prediction-encoded and thereby difference signals are generated. The difference signals are block segmented. A maximum value and a minimum value of each block are detected. Whether or not the range of levels of the maximum value MAX and the minimum value MIN crosses 0, a mode determining circuit 5 determines a quantizing mode and generates a mode signal MODE that represents the determined quantizing mode. When the range of the levels crosses 0, a first quantizing mode is selected. Otherwise, a second quantizing mode is selected. In the first quantizing mode, the quantizing circuit 6 performs the normal quantizing process. In the second quantizing mode, the quantizing circuit 6 performs a code conversion in such a manner that the number of bits of quantized output data is smaller than that of the normal quantizing process.
摘要翻译：输入数字信息信号被预测编码，从而产生差分信号。差分信号被块分割。检测每个块的最大值和最小值。最大值MAX和最小值MIN的电平范围是否越过0，模式确定电路5确定量化模式并产生表示确定的量化模式的模式信号MODE。当级别的范围跨越0时，选择第一量化模式。否则，选择第二量化模式。在第一量化模式中，量化电路6执行正常量化处理。在第二量化模式中，量化电路6执行代码转换，使得量化输出数据的比特数小于正常量化处理的比特数。

33. 发明授权

US08891019B2 Image processing apparatus, image processing method, and program 有权
标题翻译：图像处理装置，图像处理方法和程序
公开(公告)号：US08891019B2
公开(公告)日：2014-11-18
申请号：US13077415
申请日：2011-03-31
申请人： Kenji Tanaka , Kunio Kawaguchi , Yoshihiro Takahashi , Kazumasa Tanaka , Daisuke Kikuchi , Naohide Yamada , Hiroyuki Morisaki
发明人： Kenji Tanaka , Kunio Kawaguchi , Yoshihiro Takahashi , Kazumasa Tanaka , Daisuke Kikuchi , Naohide Yamada , Hiroyuki Morisaki
IPC分类号： H04N5/14 , H04N7/12 , G06F17/30
CPC分类号： G06F17/30271 , G06F17/30017 , G06F17/30781
摘要： An image processing apparatus includes: a first layer summary data generation section; a second layer summary data generation section; a first search section; and a second search section.
摘要翻译：一种图像处理装置，包括：第一层摘要数据生成部; 第二层摘要数据生成部分; 第一个搜索部分; 和第二搜索部分。

34. 发明授权

US06519365B2 Encoder, decoder, recording medium, encoding method, and decoding method 失效
标题翻译：编码器，解码器，记录介质，编码方法和解码方法
公开(公告)号：US06519365B2
公开(公告)日：2003-02-11
申请号：US08939566
申请日：1997-09-30
申请人： Tetsujiro Kondo , Kunio Kawaguchi
发明人： Tetsujiro Kondo , Kunio Kawaguchi
IPC分类号： G06K936
CPC分类号： G06T9/004
摘要： To compress images using transition information of adjacent pixels, index transition patterns of two adjacent pixels in the horizontal scanning direction of an image are computed and arranged in order of appearance frequency, then patterns within the upper four appearance frequencies are selected to create a reference table. Then, with reference to the created reference table, image data are encoded. When decoding the encoded data, at first data from both the reference table and the color look-up table is inputted and stored in the table 50 and the color look-up table 53. After this, the first data of the subsequent input data is supplied to both the color look-up table 53 and the delay circuit 51 by changing over the connection of the switch 52. Subsequent data is supplied to the table 50. The table 50 decodes the data to original image data with reference to the data and the output from the delay circuit 51. The color look-up table 53 then converts the decoded data to R, G, and B signals and output the signals.
摘要翻译：为了使用相邻像素的转换信息压缩图像，计算图像的水平扫描方向上的两个相邻像素的索引转换图案，并按照出现频率的顺序排列，然后选择上四个出现频率内的图案以创建参考表。然后，参考所创建的参考表，对图像数据进行编码。当对编码数据进行解码时，首先将来自参考表和颜色查找表的数据输入并存储在表50和颜色查找表53中。之后，后续输入数据的第一数据为通过切换开关52的连接来提供给彩色查找表53和延迟电路51。随后的数据被提供给表50.表50参考数据将数据解码为原始图像数据，并且颜色查找表53然后将解码的数据转换为R，G和B信号并输出信号。

35. 发明授权

US06421144B2 Picture encoding apparatus and method 失效
公开(公告)号：US06421144B2
公开(公告)日：2002-07-16
申请号：US08959051
申请日：1997-10-28
申请人： Tetsujiro Kondo , Yasuhiro Fujimori , Kunio Kawaguchi
发明人： Tetsujiro Kondo , Yasuhiro Fujimori , Kunio Kawaguchi
IPC分类号： H04N141
CPC分类号： H04N19/98 , H04N19/115 , H04N19/146 , H04N19/61 , H04N19/63
摘要： A picture encoding apparatus and the method in which the quantization step width of the lower hierarchy data having a resolution higher than that of the upper hierarchy data is determined for each predetermined block of respective hierarchy data based on the quantization step width determined by the upper hierarchy data having a low resolution, so that the additional code indicating the characteristics of quantizer can be omitted thereby the compression efficiency can be improved and the deterioration of picture quality can be reduced when picture data is hierarchical-encoded.

36. 发明授权

US6108451A Picture coding apparatus and method thereof 有权
公开(公告)号：US6108451A
公开(公告)日：2000-08-22
申请号：US313141
申请日：1999-05-17
申请人： Tetsujiro Kondo , Yasuhiro Fujimori , Kunio Kawaguchi
发明人： Tetsujiro Kondo , Yasuhiro Fujimori , Kunio Kawaguchi
IPC分类号： G06T9/00 , H04N7/26 , G06K9/36
CPC分类号： H04N19/186 , H04N19/63 , H04N19/647 , H04N19/96 , H04N19/10 , H04N19/115 , H04N19/146
摘要： In a picture coding apparatus and a picture coding method, when a picture data is hierarchically coded, compression efficiency can be improved, and the deterioration of picture quality can be reduced. When a picture data is hierarchically coded by utilizing a recursive hierarchical representation, adaptive division of block is performed corresponding to the characteristic of the picture data and then coding is performed, and thus obtained hierarchical coded data is transmitted, so that the block of the lower hierarchy can be adaptively divided, thereby the information quantity such as a plane portion of picture can be reduced.

37. 发明授权

US5940132A Image signal converting apparatus 失效
标题翻译：图像信号转换装置
公开(公告)号：US5940132A
公开(公告)日：1999-08-17
申请号：US826467
申请日：1997-03-27
申请人： Tetsujiro Kondo , Masashi Uchida , Kunio Kawaguchi
发明人： Tetsujiro Kondo , Masashi Uchida , Kunio Kawaguchi
IPC分类号： H04N7/01 , H04N7/12 , H04N7/26 , H04N11/20
CPC分类号： H04N7/0135 , H04N19/98 , H04N7/0125 , H04N7/125
摘要： An input digital image signal (SD signal) is converted into a high resolution digital video signal (HD signal). A considered pixel is categorized as a class corresponding to a one-dimensional, two-dimensional, or three-dimensional level distribution of a plurality of reference pixels of the SD signal. A predicted value of the considered pixel is generated by linear combination of values of a plurality of pixels of the SD signal adjacent to the considered pixel of the HD signal and predicted coefficients that have been learnt. In the learning process, predicted coefficients are determined by linear combination of the values of pixels of the SD signal and the predicted coefficients so that the sum of squares of the predicted value and the true value is minimized. Instead of the predicted coefficients, representative values may be determined for each class. In this case, the representative values are used as predicted values corresponding to the class of the input SD signal. Examples of the representative values are a base value of a block and a value normalized by dynamic range DR.
摘要翻译：输入数字图像信号（SD信号）被转换为高分辨率数字视频信号（HD信号）。所考虑的像素被分类为与SD信号的多个参考像素的一维，二维或三维水平分布相对应的类。所考虑的像素的预测值通过与所考虑的HD信号的像素相邻的SD信号的多个像素的值和已经学习的预测系数的值的线性组合来生成。在学习过程中，通过SD信号的像素值和预测系数的线性组合来确定预测系数，使得预测值和真实值之间的平方和最小化。代替预测的系数，可以为每个类确定代表值。在这种情况下，代表值被用作对应于输入SD信号的类别的预测值。代表值的示例是块的基值和由动态范围DR归一化的值。

38. 发明授权

US5930394A Picture coding apparatus and method thereof 失效
标题翻译：图像编码装置及其方法
公开(公告)号：US5930394A
公开(公告)日：1999-07-27
申请号：US428067
申请日：1995-07-20
申请人： Tetsujiro Kondo , Yasuhiro Fujimori , Kunio Kawaguchi
发明人： Tetsujiro Kondo , Yasuhiro Fujimori , Kunio Kawaguchi
IPC分类号： G06T9/00 , H04N7/26 , G06K9/36
CPC分类号： H04N19/186 , H04N19/63 , H04N19/647 , H04N19/96 , H04N19/10 , H04N19/115 , H04N19/146
摘要： In a picture coding apparatus and a picture coding method, when a picture data is hierarchically coded, compression efficiency can be improved, and the deterioration of picture quality can be reduced. When a picture data is hierarchically coded by utilizing a recursive hierarchical representation, adaptive division of block is performed corresponding to the characteristic of the picture data and then coding is performed, and thus obtained hierarchical coded data is transmitted, so that the block of the lower hierarchy can be adaptively divided, thereby the information quantity such as a plane portion of picture can be reduced.
摘要翻译： PCT No.PCT / JP94 / 01425 Sec。 371日期1995年7月20日 102（e）1995年7月20日PCT PCT 1994年8月30日PCT公布。出版物WO95 / 07004 日期1995年3月9日在图像编码装置和图像编码方法中，当图像数据被分层编码时，可以提高压缩效率，并且可以降低图像质量的劣化。当通过使用递归分层表示对图像数据进行分层编码时，对应于图像数据的特性执行块的自适应划分，然后执行编码，并且由此获得的分层编码数据被传送，使得较低的块可以自适应地划分层次结构，从而可以减少诸如图片的平面部分的信息量。

39. 发明授权

US5886794A Picture encoding apparatus 失效
标题翻译：图像编码装置
公开(公告)号：US5886794A
公开(公告)日：1999-03-23
申请号：US956016
申请日：1997-10-22
申请人： Tetsujiro Kondo , Yasuhiro Fujimori , Kunio Kawaguchi
发明人： Tetsujiro Kondo , Yasuhiro Fujimori , Kunio Kawaguchi
IPC分类号： G06T9/00 , H04N7/26 , H04N1/419 , G06K9/36 , H04N1/41 , H04N1/417
CPC分类号： H04N19/98 , H04N19/115 , H04N19/146 , H04N19/61 , H04N19/63
摘要： A picture encoding apparatus and the method in which the quantization step width of the lower hierarchy data having a resolution higher than that of the upper hierarchy data is determined for each predetermined block of respective hierarchy data based on the quantization step width determined by the upper hierarchy data having a low resolution, so that the additional code indicating the characteristics of quantizer can be omitted thereby the compression efficiency can be improved and the deterioration of picture quality can be reduced when picture data is hierarchical-encoded.
摘要翻译：基于由上层确定的量化步长，针对各层次数据的每个预定块确定图像编码装置和方法，其中分辨率高于上层数据的下层数据的量化步长具有低分辨率的数据，使得可以省略指示量化器的特性的附加代码，从而可以提高压缩效率，并且当图像数据被分层编码时可以降低图像质量的劣化。

40. 发明授权

US5878168A Method and apparatus for picture encoding and decoding 失效
标题翻译：图像编码和解码的方法和装置
公开(公告)号：US5878168A
公开(公告)日：1999-03-02
申请号：US658863
申请日：1996-05-31
申请人： Tetsujiro Kondo , Yasuhiro Fujimori , Kenji Takahashi , Kunio Kawaguchi
发明人： Tetsujiro Kondo , Yasuhiro Fujimori , Kenji Takahashi , Kunio Kawaguchi
IPC分类号： G06T9/00 , G06K9/36
CPC分类号： G06T9/004
摘要： A picture encoding apparatus for encoding an input digital picture signal in such a manner that the amount of generated data is reduced is disclosed, that comprises a dividing unit for dividing the input digital picture signal into blocks each of which is composed of a plurality of pixels, a detecting unit for detecting the maximum value of the pixels of each block, the minimum value thereof, and a dynamic range that is the difference between the maximum value and the minimum value, a quantizing unit for quantizing each value of the pixels that has been normalized with the value of the dynamic range, and an additional code encoding unit for generating the difference of the minimum value with the minimum value and a delayed value of the minimum value and for variable-length code encoding the difference of the minimum value.
摘要翻译：一种图像编码装置，用于以减少生成数据量的方式对输入的数字图像信号进行编码，其包括：分割单元，用于将输入的数字图像信号分成多个像素组成的块检测单元，用于检测每个块的像素的最大值，其最小值和作为最大值与最小值之间的差的动态范围;量化单元，用于量化具有用动态范围的值进行归一化，以及附加代码编码单元，用于产生最小值与最小值的差值和最小值的延迟值，以及编码最小值的差的可变长度代码。

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