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1. 发明授权

US5668646A Apparatus and method for decoding differently encoded multi-level and binary image data, the later corresponding to a color in the original image 失效
标题翻译：用于解码不同编码的多级和二进制图像数据的装置和方法，后者对应于原始图像中的颜色
公开(公告)号：US5668646A
公开(公告)日：1997-09-16
申请号：US289225
申请日：1994-08-12
申请人： Akihiro Katayama , Yasuhiko Yasuda , Shigeo Kato , Hirokazu Uchio
发明人： Akihiro Katayama , Yasuhiko Yasuda , Shigeo Kato , Hirokazu Uchio
IPC分类号： G06T9/00 , H04N1/64 , H04N7/26 , H04N11/04 , H04N1/411 , H04N1/413 , H04N1/56
CPC分类号： G06T9/00 , H04N1/642 , H04N11/044 , H04N19/30
摘要： This invention relates to an image processing apparatus having a function of encoding or decoding image data and discloses a technique for extracting an image feature, especially a thin image portion of a specific color of an image, and for encoding the thin image portion with high efficiency to minimize degradation of image quality by selecting an appropriate encoding method.
摘要翻译：本发明涉及具有对图像数据进行编码或解码的功能的图像处理装置，并且公开了一种用于提取图像特征，特别是图像的特定颜色的薄图像部分的技术，并且用于以高效率对薄图像部分进行编码以通过选择适当的编码方法来最小化图像质量的劣化。

2. 发明授权

US5909505A Color image encoding method and apparatus 失效
标题翻译：彩色图像编码方法和装置
公开(公告)号：US5909505A
公开(公告)日：1999-06-01
申请号：US811286
申请日：1997-03-04
申请人： Akihiro Katayama , Yasuhiko Yasuda , Shigeo Kato , Hirokazu Uchio
发明人： Akihiro Katayama , Yasuhiko Yasuda , Shigeo Kato , Hirokazu Uchio
IPC分类号： G06T9/00 , H04N1/64 , H04N7/26 , H04N11/04 , G06K9/34 , G06K9/46
CPC分类号： G06T9/00 , H04N1/642 , H04N11/044 , H04N19/30
摘要： This invention relates to an image processing apparatus having a function of encoding or decoding image data and discloses a technique for extracting an image feature, especially a thin image portion of a specific color of an image, and for encoding the thin image portion with high efficiency to minimize degradation of image quality by selecting an appropriate encoding method.
摘要翻译：本发明涉及具有对图像数据进行编码或解码的功能的图像处理装置，并且公开了一种用于提取图像特征，特别是图像的特定颜色的薄图像部分的技术，并且用于以高效率对薄图像部分进行编码以通过选择适当的编码方法来最小化图像质量的劣化。

3. 发明授权

US5361147A Method and apparatus for encoding and decoding color images 失效
标题翻译：彩色图像编码和解码的方法和装置
公开(公告)号：US5361147A
公开(公告)日：1994-11-01
申请号：US173863
申请日：1993-12-23
申请人： Akihiro Katayama , Yasuhiko Yasuda , Shigeo Kato , Hirokazu Uchio
发明人： Akihiro Katayama , Yasuhiko Yasuda , Shigeo Kato , Hirokazu Uchio
IPC分类号： G06T9/00 , H04N1/41 , H04N1/64 , H04N7/26 , H04N11/04 , H04N1/46
CPC分类号： H04N11/044 , H04N1/642 , H04N19/30
摘要： This invention relates to an image processing apparatus having a function of encoding or decoding image data and discloses a technique for extracting an image feature, especially a thin image portion of a specific color of an image, and for encoding the thin image portion with high efficiency to minimize degradation of image quality by selecting an appropriate encoding method.
摘要翻译：本发明涉及具有对图像数据进行编码或解码的功能的图像处理装置，并且公开了一种用于提取图像特征，特别是图像的特定颜色的薄图像部分的技术，并且用于以高效率对薄图像部分进行编码以通过选择适当的编码方法来最小化图像质量的劣化。

4. 发明授权

US5416606A Method and apparatus for encoding or decoding an image in accordance with image characteristics 失效
标题翻译：根据图像特征对图像进行编码或解码的方法和装置
公开(公告)号：US5416606A
公开(公告)日：1995-05-16
申请号：US311730
申请日：1994-09-23
申请人： Akihiro Katayama , Yasuhiko Yasuda , Shigeo Kato
发明人： Akihiro Katayama , Yasuhiko Yasuda , Shigeo Kato
IPC分类号： G06T9/00 , H04N1/41 , H04N1/415 , H04N1/64 , H04N7/50 , H04N11/04 , H04N1/40
CPC分类号： H04N11/042 , H04N1/642 , H04N19/10 , H04N19/61 , H04N19/13 , H04N19/60 , H04N19/91
摘要： The invention relates to an image processing apparatus having the function to encode or decode image data and discloses a technique in which an optimum encoding method is selected in accordance with the characteristics of an image and a high efficient encoding with little deterioration in image is executed.
摘要翻译：本发明涉及具有对图像数据进行编码或解码的功能的图像处理装置，并且公开了一种根据图像的特性选择最佳编码方法的技术，并且执行图像劣化的高效编码。

5. 发明授权

US5588069A Image processing apparatus for advantageously encoding blocks of data having either substantially the same or varied colors 失效
标题翻译：用于有利地编码具有基本上相同或不同颜色的数据块的图像处理装置
公开(公告)号：US5588069A
公开(公告)日：1996-12-24
申请号：US397716
申请日：1995-03-02
申请人： Akihiro Katayama , Yasuhiko Yasuda
发明人： Akihiro Katayama , Yasuhiko Yasuda
IPC分类号： G06T9/00 , H04N1/41 , H04N1/415 , H04N1/56 , H04N1/64 , H04N11/04 , H04N19/117 , H04N19/132 , H04N19/136 , H04N19/14 , H04N19/157 , H04N19/176 , H04N19/186 , H04N19/189 , H04N19/20 , H04N19/423 , H04N19/59 , H04N19/60 , H04N19/625 , H04N19/80 , H04N19/85 , H04N19/86 , H04N19/90 , H04N19/91 , H04N19/94 , G06K9/36
CPC分类号： H04N1/642 , H04N1/41 , H04N1/415 , H04N1/56 , H04N1/64
摘要： Method and apparatus for efficiently encoding image data of a color facsimile or the like are provided. A specific color judgment unit discriminates a specific color portion such as white or blank portion of the image data inputted from an image input unit. An orthogonal transforming process is not executed to the blank block, thereby raising an encoding efficiency. A discrimination signal is subjected to a dynamic arithmetical encoding, thereby producing code data.
摘要翻译：提供了用于有效地编码彩色传真机等的图像数据的方法和装置。特定颜色判断单元鉴别从图像输入单元输入的图像数据的特定颜色部分，例如白色或空白部分。不对空白块执行正交变换处理，从而提高编码效率。对判别信号进行动态算术编码，从而产生代码数据。

6. 发明授权

US5710826A Image encoding method 失效
标题翻译：图像编码方法
公开(公告)号：US5710826A
公开(公告)日：1998-01-20
申请号：US190470
申请日：1994-02-02
申请人： Hidefumi Osawa , Yasuhiko Yasuda , Shigeo Kato
发明人： Hidefumi Osawa , Yasuhiko Yasuda , Shigeo Kato
IPC分类号： G06T9/00 , H04N1/417 , H04N1/64
CPC分类号： H04N1/642 , G06T9/004 , H04N1/417 , H04N1/648
摘要： There is provided an image encoding method in a facsimile apparatus or an image filing apparatus as an image communication apparatus. In this method, a color image signal which is expressed by a plurality of color component signals to be encoded is input, the input color image signal is converted into a bit stream signal, and the bit stream signal is encoded by prediction encoding. A parameter for the prediction encoding is changed in accordance with the color image signal to be encoded. The encoding operation is executed adaptively to the color image signal to be encoded. By virtue of bit stream converting the binary color signal, efficient encoding using the color correlation can be executed and an increase in data amount is prevented. By encoding the bit stream signal using a dynamic arithmetic code, a binary color image can be efficiently encoded.
摘要翻译：提供了作为图像通信装置的传真装置或图像归档装置中的图像编码方法。在该方法中，输入由要编码的多个颜色分量信号表示的彩色图像信号，将输入彩色图像信号转换为比特流信号，并通过预测编码对比特流信号进行编码。预测编码的参数根据要编码的彩色图像信号而改变。编码操作被自适应地执行要被编码的彩色图像信号。通过比特流转换二值颜色信号，可以执行使用颜色相关性的有效编码，并且防止数据量的增加。通过使用动态算术代码编码比特流信号，可以有效地对二进制彩色图像进行编码。

7. 发明授权

US5136396A Image encoding method 失效
标题翻译：图像编码方法
公开(公告)号：US5136396A
公开(公告)日：1992-08-04
申请号：US764059
申请日：1991-09-24
申请人： Shigeo Kato , Yasuhiko Yasuda , Hidefumi Ohsawa
发明人： Shigeo Kato , Yasuhiko Yasuda , Hidefumi Ohsawa
IPC分类号： G06T9/00 , H04N1/417
CPC分类号： H04N1/4172 , G06T9/004
摘要： In an image encoding method in which a pixel of interest is predicted with reference to a plurality of pixels near the pixel of interest to be encoded, and encoding is performed on the basis of coincidence/noncoincidence between the predicted pixel and the pixel of interest, a parameter for predicting a pixel is changed on the basis of a rate of coincidence/noncoincidence of the predicted pixel and the pixel of interest.
摘要翻译：在图像编码方法中，参照要编码的感兴趣像素附近的多个像素预测感兴趣像素，并且基于预测像素和感兴趣像素之间的一致/不一致来执行编码，基于预测像素和感兴趣像素的一致/不一致的速度来改变用于预测像素的参数。

8. 发明授权

US5331426A Image encoding method 失效
标题翻译：图像编码方法
公开(公告)号：US5331426A
公开(公告)日：1994-07-19
申请号：US882894
申请日：1992-05-14
申请人： Shigeo Kato , Yasuhiko Yasuda , Hidefumi Ohsawa
发明人： Shigeo Kato , Yasuhiko Yasuda , Hidefumi Ohsawa
IPC分类号： G06T9/00 , H04N1/417 , H04N1/41
CPC分类号： H04N1/4172 , G06T9/004
摘要： In an image encoding method in which a pixel of interest is predicted with reference to a plurality of pixels near the pixel of interest to be encoded, and encoding is performed on the basis of coincidence/noncoincidence between the predicted pixel and the pixel of interest, a parameter for predicting a pixel is changed on the basis of a rate of coincidence/noncoincidence of the predicted pixel and the pixel of interest.
摘要翻译：在图像编码方法中，参照要编码的感兴趣像素附近的多个像素预测感兴趣像素，并且基于预测像素和感兴趣像素之间的一致/不一致来执行编码，基于预测像素和感兴趣像素的一致/不一致的速度来改变用于预测像素的参数。

9. 发明授权

US5317428A Image encoding method and apparatus providing variable length bit stream signals 失效
标题翻译：提供可变长度位流信号的图像编码方法和装置
公开(公告)号：US5317428A
公开(公告)日：1994-05-31
申请号：US982115
申请日：1992-11-25
申请人： Hidefumi Osawa , Yasuhiko Yasuda , Shigeo Kato
发明人： Hidefumi Osawa , Yasuhiko Yasuda , Shigeo Kato
IPC分类号： G06T9/00 , H04N1/417 , H04N1/64 , H04N11/02
CPC分类号： H04N1/642 , G06T9/004 , H04N1/417 , H04N1/648
摘要： There is provided an image encoding method in a facsimile apparatus or an image filing apparatus as an image communication apparatus. In this method, a color image signal which is expressed by a plurality of color component signals to be encoded is input, the input color image signal is converted into a bit stream signal, and the bit stream signal is encoded by the prediction encoding. A parameter for the prediction encoding is changed in accordance with the color image signal to be encoded. The encoding operation is executed adaptively to the color image signal to be encoded. By bit stream converting the binary color signal, the efficient encoding using the color correlation can be executed and an increase in data amount is prevented. By encoding the bit stream signal by using a dynamic arithmetic code, a binary color image can be efficiently encoded.
摘要翻译：提供了作为图像通信装置的传真装置或图像归档装置中的图像编码方法。在该方法中，输入由要编码的多个颜色分量信号表示的彩色图像信号，将输入彩色图像信号转换为比特流信号，并通过预测编码对比特流信号进行编码。预测编码的参数根据要编码的彩色图像信号而改变。编码操作被自适应地执行要被编码的彩色图像信号。通过对二进制彩色信号进行位流转换，可以执行使用颜色相关性的有效编码，并且防止数据量的增加。通过使用动态算术码对比特流信号进行编码，可以有效地对二进制彩色图像进行编码。

10. 发明授权

US5124811A Image encoding apparatus 失效
标题翻译：图像编码装置
公开(公告)号：US5124811A
公开(公告)日：1992-06-23
申请号：US398665
申请日：1989-08-25
申请人： Hidefumi Ohsawa , Yasuhiko Yasuda , Shigeo Kato
发明人： Hidefumi Ohsawa , Yasuhiko Yasuda , Shigeo Kato
IPC分类号： H04N19/00 , G06T3/40 , G06T9/00 , H03M7/30 , H04N1/41 , H04N1/411 , H04N1/417 , H04N19/33 , H04N19/42 , H04N19/423 , H04N19/59 , H04N19/80 , H04N19/91
CPC分类号： G06T3/4007 , H04N1/411 , H04N1/4172
摘要： An image encoding apparatus includes a smoothing circuit for smoothing a binary image to be encoded, a binary-encoding circuit for binary-encoding the image smoothed by the smoothing circuit, a sampling circuit for sub-sampling the image binary-encoded by the binary-encoding circuit, and an encoding circuit for encoding the binary image sub-sampled by the sampling circuit. A degree of smoothness of an image by the smoothing circuit and a threshold value for a binary-encoding operation of the binary-encoding circuit can be varied.

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