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1. 发明授权

US06459437B1 Color converting device 失效
标题翻译：颜色转换装置
公开(公告)号：US06459437B1
公开(公告)日：2002-10-01
申请号：US09453716
申请日：1999-12-03
申请人： Masanori Sekino , Yutaka Koshi , Fujio Ihara , Shunichi Kimura , Taro Yokose , Koh Kamizawa
发明人： Masanori Sekino , Yutaka Koshi , Fujio Ihara , Shunichi Kimura , Taro Yokose , Koh Kamizawa
IPC分类号： G06T1140
CPC分类号： G06T11/001
摘要： An index signal and a delta signal are generated from an input pixel value, and then, inputted to an input buffer by every predetermined pixel to be processed. A controlling unit compares the index signal in the input buffer with a tag (index signal) in a coefficient cache. When they coinside with each other, the controlling unit reads out the corresponding coefficient from the coefficient cache and supplies the same to an interpolating unit. The interpolating unit simultaneously receives the delta signal and supplies the keeping color data to an output buffer. Thereafter, the interpolating unit accesses to the coefficient storing memory by using an index signal that does not coinside with either one of cache-tag (index signal) to obtain a coefficient, and similarly, interpolatively generates color data. Data of converted color is outputted from the output buffer in the order of inputting the pixel. A color converting device of the present invention can perform a color conversion with high precision without increasing a reading-out band of a coefficient table for a color conversion.
摘要翻译：从输入像素值生成索引信号和增量信号，然后通过每个要处理的预定像素输入到输入缓冲器。控制单元将输入缓冲器中的索引信号与系数高速缓存中的标签（索引信号）进行比较。当它们彼此硬币化时，控制单元从系数高速缓存读出相应的系数并将其提供给内插单元。内插单元同时接收增量信号，并将保持颜色数据提供给输出缓冲器。此后，内插单元通过使用不具有硬币的索引信号来访问系数存储存储器，其中任一个缓存标签（索引信号）中的任何一个以获得系数，并且类似地内插地生成颜色数据。以输入像素的顺序从输出缓冲器输出转换后的颜色数据。本发明的颜色转换装置可以在不增加用于颜色转换的系数表的读出频带的情况下以高精度执行颜色转换。

2. 发明授权

US5991458A Image quality prediction apparatus and method, and image quality control apparatus and method 失效
标题翻译：图像质量预测装置及方法，图像质量控制装置及方法
公开(公告)号：US5991458A
公开(公告)日：1999-11-23
申请号：US912112
申请日：1997-08-15
申请人： Setsu Kunitake , Shunichi Kimura , Taro Yokose , Yutaka Koshi , Koh Kamizawa
发明人： Setsu Kunitake , Shunichi Kimura , Taro Yokose , Yutaka Koshi , Koh Kamizawa
IPC分类号： B41J5/30 , G06T9/00 , H04N1/41 , H04N17/00 , H04N19/00 , H04N19/102 , H04N19/124 , H04N19/126 , H04N19/134 , H04N19/136 , H04N19/14 , H04N19/162 , H04N19/167 , H04N19/169 , H04N19/176 , H04N19/189 , H04N19/196 , H04N19/423 , H04N19/50 , H04N19/59 , H04N19/60 , H04N19/61 , H04N19/625 , H04N19/86 , G06K9/00
CPC分类号： H04N17/004 , H04N19/124 , H04N19/126 , H04N19/14 , H04N19/147 , H04N19/149 , H04N19/15 , H04N19/154 , H04N19/176 , H04N19/60 , H04N19/61 , H04N19/85 , H04N19/146
摘要： An image quality control apparatus having an image divider, a converter, an image analyzer, an image output property circuit, a quantization method selector, a quantizer and a coder. The image divider divides an input image into a plurality of divided images including a predetermined number of picture elements. The converter converts the divided images into converted coefficients. Then, the image analyzer determines a property of the divided images which is output by the image output property output circuit. A quantization selector selects a quantization method in response to the divided image property that was found by the image analyzer and the image output property output circuit. The quantizer quantizes the conversion coefficients found by the converter in accordance with the quantization methods selected by the quantization selector. A coder then codes the conversion coefficients quantized by the quantizer.
摘要翻译：具有图像分割器，转换器，图像分析器，图像输出特性电路，量化方法选择器，量化器和编码器的图像质量控制装置。图像分割器将输入图像划分成包括预定数量的图像元素的多个分割图像。转换器将分割的图像转换为转换的系数。然后，图像分析仪确定由图像输出特性输出电路输出的分割图像的特性。量化选择器响应于由图像分析仪和图像输出特性输出电路找到的分割图像特性来选择量化方法。量化器根据由量化选择器选择的量化方法量化转换器发现的转换系数。然后，编码器对由量化器量化的转换系数进行编码。

3. 发明授权

US5987182A Markov model image encoding device and method 失效
标题翻译：马尔可夫模型图像编码装置及方法
公开(公告)号：US5987182A
公开(公告)日：1999-11-16
申请号：US876484
申请日：1997-06-16
申请人： Shunichi Kimura , Setsu Kunitake , Taro Yokose , Yutaka Koshi , Koh Kamizawa
发明人： Shunichi Kimura , Setsu Kunitake , Taro Yokose , Yutaka Koshi , Koh Kamizawa
IPC分类号： H04N19/50 , G06T9/00 , H03M7/40 , H04N1/41 , H04N1/417 , H04N19/102 , H04N19/13 , H04N19/167 , H04N19/196 , H04N19/423 , H04N19/91 , G06K9/36
CPC分类号： G06T9/00
摘要： A plurality of reference pixel extracting means check their corresponding reference pixel ranges and pixel values in predetermined auxiliary regions. Reference pixel range selecting means selects a reference pixel range based on the checked pixel values. When the number of types of pixel values for an input image is found to be locally low in the selected reference pixel range, the number of reference pixels is increased. On the other hand, when the number of types of the pixel values for the input image is found to be locally large, the number of reference pixels is decreased. As a result, states can be generated by a Markov model image encoding system capable of improving encoding efficiency without increasing the number of the states sharply. Owing to the above construction, even when the number of tones for the input image is high upon Markov model image encoding, the number of reference pixels can be increased without abruptly increasing the number of states later on to improve compression efficiency.
摘要翻译：多个参考像素提取装置在预定的辅助区域中检查其对应的参考像素范围和像素值。参考像素范围选择装置基于所检查的像素值来选择参考像素范围。当在所选择的参考像素范围中发现输入图像的像素值的数量在本地较低时，参考像素的数量增加。另一方面，当发现输入图像的像素值的类型的数量局部地大时，参考像素的数量减少。结果，可以通过能够提高编码效率的马尔可夫模型图像编码系统来生成状态，而不会急剧增加状态数。由于上述结构，即使在马尔科夫模型图像编码时输入图像的色调数量高的情况下，也可以增加参考像素的数量而不会稍后突然增加状态数来提高压缩效率。

4. 发明授权

US5822463A Image coding apparatus utilizing a plurality of different quantization-width estimation methods 失效
标题翻译：利用多个不同的量化宽度估计方法的图像编码装置
公开(公告)号：US5822463A
公开(公告)日：1998-10-13
申请号：US917168
申请日：1997-08-25
申请人： Taro Yokose , Akihiro Andoh , Shunichi Kimura , Setsu Kunitake , Yutaka Koshi , Koh Kamizawa
发明人： Taro Yokose , Akihiro Andoh , Shunichi Kimura , Setsu Kunitake , Yutaka Koshi , Koh Kamizawa
IPC分类号： G06T9/00 , H03M7/30 , H03M7/36 , H03M7/40 , H04N1/41 , H04N19/126 , H04N19/134 , H04N19/146 , H04N19/189 , H04N19/196 , H04N19/423 , H04N19/60 , H04N19/625 , H04N19/85 , H04N19/91
CPC分类号： H04N19/192 , H04N19/124 , H04N19/149 , H04N19/172 , H04N19/60 , H04N19/146 , H04N19/152
摘要： An image transforming section subjects image data to compression processing. A quantizing section quantizes the transformed data using a quantization width. A variable-length coding section subjects the quantized data to variable-length coding. A code-amount computing section determines a total code amount by accumulating partial code amounts. A control section performs control based on the code amount. An estimating method selecting section adaptively selects a quantization width estimating method. A coded result storage section stores data of a code amount corresponding to the quantization width. First and second quantization width estimating sections have different quantization width estimating methods.
摘要翻译：图像变换部将图像数据进行压缩处理。量化部分使用量化宽度来量化变换的数据。可变长度编码部分对经量化的数据进行可变长度编码。代码量计算部分通过累积部分代码量来确定总代码量。控制部根据代码量进行控制。估计方法选择部分自适应地选择量化宽度估计方法。编码结果存储部分存储与量化宽度对应的代码量的数据。第一和第二量化宽度估计部分具有不同的量化宽度估计方法。

5. 发明授权

US5615288A Singular value decomposition coding and decoding apparatuses 失效
标题翻译：奇异值分解编码和解码装置
公开(公告)号：US5615288A
公开(公告)日：1997-03-25
申请号：US232801
申请日：1994-04-25
申请人： Yutaka Koshi , Shunichi Kimura , Taro Yokose , Koh Kamizawa , Toshi Minami , Osamu Nakamura
发明人： Yutaka Koshi , Shunichi Kimura , Taro Yokose , Koh Kamizawa , Toshi Minami , Osamu Nakamura
IPC分类号： G06T9/00 , G06K9/36
CPC分类号： G06T9/001
摘要： An input image is divided into blocks each represented by n.times.n matrix X, and then X.sup.T X is calculated. Singular values of X that are positive square roots of eigenvalues of X.sup.T X and first singular vectors that are normalized eigenvectors of X.sup.T X are calculated by, for instance, the Jacobi method. Second singular vectors that are normalized eigenvectors of XX.sup.T are calculated analytically using the singular values and the first singular vectors. The singular values and the first and second singular vectors thus calculated are coded.
摘要翻译：输入图像被分成由n×n矩阵X表示的块，然后计算XTX。作为XTX的归一化特征向量的XTX的特征值的正平方根的X的奇异值，例如通过Jacobi方法计算。使用奇异值和第一个奇异矢量分析计算XXT的归一化特征向量的第二个奇异向量。如此计算的奇异值和第一和第二奇异矢量被编码。

6. 发明授权

US5956430A Image information coding apparatus and method using code amount of a selected pixel block for changing coding parameter 失效
标题翻译：图像信息编码装置和使用所选择的像素块的代码量来改变编码参数的方法
公开(公告)号：US5956430A
公开(公告)日：1999-09-21
申请号：US726410
申请日：1996-10-03
申请人： Setsu Kunitake , Shun-ichi Kimura , Taro Yokose , Yutaka Koshi , Koh Kamizawa
发明人： Setsu Kunitake , Shun-ichi Kimura , Taro Yokose , Yutaka Koshi , Koh Kamizawa
IPC分类号： G06T9/00
CPC分类号： G06T9/005
摘要： An image information coding apparatus includes a block generator for dividing image information into pixel blocks, each of which consists of a predetermined number of pixels. A block selector selects a pixel block in a position different from that of a pixel block selected in a preceding block line in a main scanning direction from the pixel blocks generated by the block generator. A parameter setting device sets a coding parameter to a predetermined value. A first variable-length coding device conducts variable-length coding of the pixel block selected by the block selector using the coding parameter. A code amount controller changes a value of the coding parameter so that the code amount of the pixel block selected by the block selector and coded by the first variable-length coding device is not more than a predetermined code amount, and a second variable-length coding device conducts variable-length coding of all of the pixel blocks using a coding parameter changed by the code amount controller.
摘要翻译：图像信息编码装置包括块图像信号分割成像素块的块发生器，每个像素块由预定数量的像素构成。块选择器从块生成器生成的像素块中选择与主扫描方向上的前一块行中选择的像素块的位置不同的像素块。参数设定装置将编码参数设定为规定值。第一可变长度编码装置使用编码参数对由块选择器选择的像素块进行可变长度编码。代码量控制器改变编码参数的值，使得由块选择器选择并由第一可变长度编码装置编码的像素块的代码量不大于预定代码量，并且第二可变长度编码装置使用由代码量控制器改变的编码参数来进行所有像素块的可变长度编码。

7. 发明授权

US5828789A Image coding system and image decoding system 失效
标题翻译：图像编码系统和图像解码系统
公开(公告)号：US5828789A
公开(公告)日：1998-10-27
申请号：US729371
申请日：1996-10-17
申请人： Taro Yokose , Shuichi Kimura , Yutaka Koshi , Koh Kamizawa , Kenichi Kawauchi
发明人： Taro Yokose , Shuichi Kimura , Yutaka Koshi , Koh Kamizawa , Kenichi Kawauchi
IPC分类号： H04N19/103 , G06T1/00 , G06T9/00 , H03M7/36 , H04N1/41 , H04N1/417 , H04N19/134 , H04N19/154 , H04N19/182 , H04N19/189 , H04N19/196 , H04N19/42 , H04N19/50 , H04N19/90 , H04N19/91 , H04N19/93 , G06K9/00
CPC分类号： H04N19/105 , H04N19/146 , H04N19/182 , H04N19/593
摘要： In a coding system, when any of the prediction results of pixel value prediction sections 20 and 21 matches an object pixel, a coding section 50 codes an identifier of the pixel value prediction section whose prediction result matches the object pixel. When none of the results match the object pixel, the coding section 50 codes a prediction error of a prediction error calculation section 30. A decoding system decodes code to an identifier or prediction error and outputs pixel data from the corresponding pixel value prediction section based on the identifier or takes out pixel data from a prediction error addition section 31 based on the predication error.
摘要翻译：在编码系统中，当像素值预测部20和21的预测结果中的任一个与对象像素相匹配时，编码部50对预测结果与对象像素相匹配的像素值预测部的识别符进行编码。当没有结果与目标像素匹配时，编码部分50对预测误差计算部分30的预测误差进行编码。解码系统将代码解码为标识符或预测误差，并基于相应的像素值预测部分输出像素数据基于预测误差，从预测误差加法部31取出识别符或取出像素数据。

8. 发明授权

US5570203A Image signal coding device 失效
标题翻译：图像信号编码装置
公开(公告)号：US5570203A
公开(公告)日：1996-10-29
申请号：US325143
申请日：1994-10-20
申请人： Kazuhiro Suzuki , Taro Yokose , Toshiaki Yoshinari , Yutaka Koshi , Koh Kamizawa
发明人： Kazuhiro Suzuki , Taro Yokose , Toshiaki Yoshinari , Yutaka Koshi , Koh Kamizawa
IPC分类号： G06T9/00 , H03M7/30 , H04N1/41 , H04N1/413 , H04N1/415
CPC分类号： H04N19/126 , H04N19/60 , H04N19/124 , H04N19/132
摘要： An image signal coding device capable of attaining a high-speed coding operation without increasing a circuit scale. The image signal coding device includes a DCT section for performing two-dimensional orthogonal transform to each of plural pixel blocks obtained by dividing an image signal to generate a transform coefficient, a linear quantization section for linearly quantizing the transform coefficient by using given quantization characteristics to generate a quantized coefficient, and a variable length coding section for performing variable length coding to the quantized coefficient to generate code data. The image signal coding device further includes an effective region holding section for holding region information including a range of the transform coefficient to be linearly quantized by the linear quantization section and a range of the quantized coefficient to be coded by the variable length coding section.
摘要翻译：一种能够在不增加电路规模的情况下实现高速编码操作的图像信号编码装置。图像信号编码装置包括：DCT部分，用于对通过划分图像信号获得的多个像素块中的每一个进行二维正交变换，以生成变换系数;线性量化部分，用于通过使用给定的量化特性对变换系数进行线性量化生成量化系数，以及可变长度编码部分，用于对量化系数执行可变长度编码以生成代码数据。图像信号编码装置还包括有效区域保持部分，用于保持包括由线性量化部分线性量化的变换系数的范围的区域信息和由可变长度编码部分编码的量化系数的范围。

9. 发明授权

US5577132A Image coding/decoding device 失效
标题翻译：图像编码/解码装置
公开(公告)号：US5577132A
公开(公告)日：1996-11-19
申请号：US363324
申请日：1994-12-23
申请人： Taro Yokose , Kazuhiro Suzuki , Yutaka Koshi , Koh Kamizawa
发明人： Taro Yokose , Kazuhiro Suzuki , Yutaka Koshi , Koh Kamizawa
IPC分类号： H03M7/40 , H04N1/41 , H04N19/00 , H04N19/13 , H04N19/134 , H04N19/182 , H04N19/196 , H04N19/90 , H04N19/91 , H03M7/00
CPC分类号： H03M7/4006 , H04N19/13 , H04N19/60 , H04N19/91
摘要： An image coding device for coding an input image of multi-level. In the image coding device, an input multi-level image is analyzed by an image analyzing portion, and update information to be used when a probability estimation value is generated is generated by an update value determining portion on the basis of adjoining pixel information as a result of the analysis by the image analyzing portion. Further, a probability estimation value is generated by a probability estimating portion on the basis of the update information generated by the update value determining portion and the result of the analysis by the image analyzing portion, and the input multi-level image is arithmetically coded by a code word generating portion on the basis of the probability estimation value generated by the probability estimating portion.
摘要翻译：一种用于编码多级输入图像的图像编码装置。在图像编码装置中，通过图像分析部分对输入的多级图像进行分析，并且通过更新值确定部分基于相邻的像素信息生成作为概率估计值生成时使用的更新信息作为由图像分析部分分析的结果。此外，基于由更新值确定部分生成的更新信息和图像分析部分的分析结果，通过概率估计部分生成概率估计值，并且输入的多级图像被算术编码基于由所述概率估计部生成的概率估计值的码字生成部。

10. 发明申请

US20050053287A1 Image processing system, image formation apparatus, image formation method, and program 审中-公开
标题翻译：图像处理系统，图像形成装置，图像形成方法和程序
公开(公告)号：US20050053287A1
公开(公告)日：2005-03-10
申请号：US10722439
申请日：2003-11-28
申请人： Ikken So , Masanori Sekino , Taro Yokose , Yutaka Koshi
发明人： Ikken So , Masanori Sekino , Taro Yokose , Yutaka Koshi
IPC分类号： G06T5/00 , G06K9/36 , G06T5/20 , H04N1/409 , H04N1/417 , H04N5/92 , H04N19/40 , H04N19/60 , H04N19/80 , H04N19/85 , H04N19/90 , H04N19/93
CPC分类号： H04N19/85 , H04N19/50 , H04N19/80
摘要： Filtering for enhancing the reversible compression rate is performed for image data as preprocessing of compression processing. For image processing after the filtering, repeating of compression and decompression according to the reversible compression technique corresponding to the filtering is allowed. As the filtering and reversible compression processing are performed, a sufficient compression ratio is provided and accumulation of image quality degradation by repeating compression and decompression is prevented.
摘要翻译：对作为压缩处理的预处理的图像数据进行用于提高可逆压缩率的滤波。对于滤波后的图像处理，允许根据对应于滤波的可逆压缩技术重复压缩和解压缩。由于进行了滤波和可逆压缩处理，因此提供了足够的压缩比，并且防止了通过重复压缩和解压缩降低图像质量的累积。

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