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1. 发明授权

US06985634B2 Image processing system for compressing image data including binary image data and continuous tone image data by a sub-band transform method with a high-compression rate 失效
公开(公告)号：US06985634B2
公开(公告)日：2006-01-10
申请号：US10730019
申请日：2003-12-09
申请人： Nekka Matsuura , Yukiko Yamazaki , Takahiro Yagishita
发明人： Nekka Matsuura , Yukiko Yamazaki , Takahiro Yagishita
IPC分类号： G06K9/36
CPC分类号： G06T9/005 , G06T9/007
摘要： An image processing system which compresses an image including both a binary image and a continuous tone image by a sub-band transform method with a high compression rate. A 2×2 pixel matrix block is extracted from image data. A transform factor having a plurality of frequency components is obtained from the 2×2 pixel matrix block data. The transform factor is quantized by a fixed-length quantizing method by deleting a predetermined number of lower order bits of each of the frequency components.

2. 发明授权

US06714685B2 Image processing system for compressing image data including binary image data and continuous tone image data by a sub-band transform method with a high-compression rate 失效
公开(公告)号：US06714685B2
公开(公告)日：2004-03-30
申请号：US10423911
申请日：2003-04-28
申请人： Nekka Matsuura , Yukiko Yamazaki , Takahiro Yagishita
发明人： Nekka Matsuura , Yukiko Yamazaki , Takahiro Yagishita
IPC分类号： G06K946
CPC分类号： G06T9/005 , G06T9/007
摘要： An image processing system which compresses an image including both a binary image and a continuous tone image by a sub-band transform method with a high compression rate. A 2×2 pixel matrix block is extracted from image data. A transform factor having a plurality of frequency components is obtained from the 2×2 pixel matrix block data. The transform factor is quantized by a fixed-length quantizing method by deleting a predetermined number of lower order bits of each of the frequency components.

3. 发明授权

US06704455B1 Image processing system and image processing method 失效
标题翻译：图像处理系统和图像处理方法
公开(公告)号：US06704455B1
公开(公告)日：2004-03-09
申请号：US09085714
申请日：1998-05-28
申请人： Yukiko Yamazaki , Takahiro Yagishita , Nekka Matsuura
发明人： Yukiko Yamazaki , Takahiro Yagishita , Nekka Matsuura
IPC分类号： G06K936
CPC分类号： G06T9/005
摘要： A dividing portion divides input image data into a plurality of block data, a block expressed by each of said plurality of block data comprising a pixel matrix of the same predetermined size. A transform portion transforms each of the plurality of block data by a frequency transform method so as to produce a transform factor. A quantizing portion, having a plurality of quantization tables, quantizes the transform factor using one of the plurality of quantization tables. An encoding portion encodes an output of the quantizing portion. A reverse transform portion restores image data from the output of the quantizing portion. A measuring portion measures an error between the input image data and the image data restored by the reverse transform portion. The quantizing portion quantizes the transform factor again using another one of the plurality of quantization tables when the error measured by the measuring portion exceeds a predetermined threshold value.
摘要翻译：分割部将输入图像数据分割为多个块数据，由包含相同预定尺寸的像素矩阵的所述多个块数据中的每一个表示的块。变换部分通过频率变换方法来变换多个块数据中的每一个，以产生变换因子。具有多个量化表的量化部分使用多个量化表之一量化变换因子。编码部分对量化部分的输出进行编码。反向变换部分从量化部分的输出恢复图像数据。测量部分测量输入图像数据与由反向变换部分恢复的图像数据之间的误差。当由测量部分测量的误差超过预定阈值时，量化部分再次使用多个量化表中的另一个量化该变换因子。

4. 发明授权

US06519052B1 Image processing method and apparatus to select a data compression method according to a size of an output image 失效
标题翻译：根据输出图像的尺寸选择数据压缩方法的图像处理方法和装置
公开(公告)号：US06519052B1
公开(公告)日：2003-02-11
申请号：US09401503
申请日：1999-09-22
申请人： Shogo Oneda , Takahiro Yagishita , Yukiko Yamazaki , Nekka Matsuura
发明人： Shogo Oneda , Takahiro Yagishita , Yukiko Yamazaki , Nekka Matsuura
IPC分类号： G06E1500
CPC分类号： G06T9/00
摘要： An image processing apparatus for inputting image data from an external image input device and outputting the inputted image data to an external image output device after processing the data, the image processing apparatus including a data compression device for compressing the inputted image data by a variable-length data compression method. An image data storing device stores the inputted image data therein. A control device controls the apparatus, such that, when a size of an output image of the inputted image data is larger than a predetermined size, the data compression device compresses the inputted image data by the variable-length data compression method and the image data storing device stores the compressed image data therein, and, when the output image of the inputted image data is equal to or smaller than the predetermined size, the image data storing device stores the inputted image data therein without data compression.
摘要翻译：一种用于从外部图像输入装置输入图像数据并在处理数据之后将输入的图像数据输出到外部图像输出装置的图像处理装置，所述图像处理装置包括：数据压缩装置，用于通过可变尺寸压缩输入的图像数据; 长度数据压缩方法。图像数据存储装置将输入的图像数据存储在其中。控制装置控制装置，使得当输入图像数据的输出图像的尺寸大于预定尺寸时，数据压缩装置通过可变长度数据压缩方法和图像数据来压缩输入的图像数据存储装置将压缩图像数据存储在其中，并且当输入的图像数据的输出图像等于或小于预定尺寸时，图像数据存储装置在其中存储输入的图像数据而不进行数据压缩。

5. 发明授权

US07277585B2 Image encoding method, image encoding apparatus and storage medium 有权
标题翻译：图像编码方法，图像编码装置和存储介质
公开(公告)号：US07277585B2
公开(公告)日：2007-10-02
申请号：US10153654
申请日：2002-05-24
申请人： Takahiro Yagishita , Yukiko Yamazaki
发明人： Takahiro Yagishita , Yukiko Yamazaki
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： H04N1/32 , H04N1/4105
摘要： An image encoding method forms units respectively made up of a plurality of pixels belonging to within one period of a digital image data having a periodic property, and carries out an encoding using the units as units of encoding, so that two units which are consecutively encoded are separated by an integer multiple of the period.
摘要翻译：图像编码方法形成分别由属于具有周期性属性的数字图像数据的一个周期内的多个像素构成的单元，并且使用这些单位执行编码作为编码单位，使得连续编码的两个单元以该周期的整数倍为单位。

6. 发明授权

US07046387B1 Efficient coding of color images including monochrome images 失效
标题翻译：彩色图像的高效编码，包括单色图像
公开(公告)号：US07046387B1
公开(公告)日：2006-05-16
申请号：US09664832
申请日：2000-09-19
申请人： Takahiro Yagishita , Yukiko Yamazaki , Nekka Matsuura
发明人： Takahiro Yagishita , Yukiko Yamazaki , Nekka Matsuura
IPC分类号： G06K15/00
CPC分类号： H04N11/042 , H04N19/12 , H04N19/172 , H04N19/186 , H04N19/60 , H04N19/63
摘要： A device for processing images includes a compressing/coding unit which encodes image data including a plurality of color components to produce fixed-length codes, a memory unit which stores therein the codes produced by the compressing/coding unit, a distribution-measurement unit which measures a distribution of the color components concurrently with the encoding of the image data performed by the compressing/coding unit, and a memory-control unit which releases a memory space assigned to part of the codes relating to colors in the memory unit if the distribution-measurement unit detects that the distribution concentrates on a particular color composition, and records data indicative of the particular color composition in the memory unit.
摘要翻译：一种用于处理图像的装置包括：压缩/编码单元，对压缩/编码单元产生的代码编码包含多个颜色分量的图像数据以产生固定长度代码;存储单元，分配测量单元，测量与由压缩/编码单元执行的图像数据的编码同时的颜色分量的分布;以及存储器控制单元，其释放分配给与存储单元中的颜色相关的代码的一部分的存储空间，如果分布测量单元检测到分布集中于特定的颜色组合，并且将表示特定颜色组成的数据记录在存储单元中。

7. 发明授权

US06788811B1 Coding apparatus, decoding apparatus, coding method, decoding method, amd computer-readable recording medium for executing the methods 失效
标题翻译：编码装置，解码装置，编码方法，解码方法，用于执行方法的计算机可读记录介质
公开(公告)号：US06788811B1
公开(公告)日：2004-09-07
申请号：US09565545
申请日：2000-05-05
申请人： Nekka Matsuura , Takahiro Yagishita , Yukiko Yamazaki
发明人： Nekka Matsuura , Takahiro Yagishita , Yukiko Yamazaki
IPC分类号： G06K936
CPC分类号： H04N19/60 , H04N11/044 , H04N19/63
摘要： A coding apparatus which can simplify a coding circuit and also simplify the processing of quantization. Image data that consists of R-, G-, and B-color components read from a scanner into buffers is subjected to transformation using a position correlation for each of RGB in position-correlation transformation sections. The DC component of each of the components is then color-converted in a color conversion section to be a DC lightness signal and DC color signals, and the signals are quantized in a quantization section and a coding section. Whereas, the AC components of each of the components are subjected to quantization in a first step in an AC component quantization section, and further to color conversion in a color conversion section to be an AC lightness signal and AC color signals. The signals are quantized in a second step in a quantization section and a coding section.
摘要翻译：一种可以简化编码电路并简化量化处理的编码装置。由从扫描仪读取到缓冲器中的R，G和B颜色分量的图像数据使用位置相关变换部分中的每个RGB的位置相关性进行变换。然后，将颜色转换部分中的每个分量的直流分量进行颜色转换为直流亮度信号和直流彩色信号，并且在量化部分和编码部分对信号进行量化。而在AC分量量化部分中的每个分量的AC分量在第一步进行量化，并且进一步将颜色转换部分中的颜色转换为AC亮度信号和AC彩色信号。在量化部分和编码部分中的第二步中量化信号。

8. 发明授权

US06459816B2 Image processing system for compressing image data including binary image data and continuous tone image data by a sub-band transform method with a high-compression rate 失效
公开(公告)号：US06459816B2
公开(公告)日：2002-10-01
申请号：US09073873
申请日：1998-05-07
申请人： Nekka Matsuura , Yukiko Yamazaki , Takahiro Yagishita
发明人： Nekka Matsuura , Yukiko Yamazaki , Takahiro Yagishita
IPC分类号： G06K946
CPC分类号： G06T9/005 , G06T9/007
摘要： An image processing system which compresses an image including both a binary image and a continuous tone image by a sub-band transform method with a high compression rate. A 2×2 pixel matrix block is extracted from image data. A transform factor having a plurality of frequency components is obtained from the 2×2 pixel matrix block data. The transform factor is quantized by a fixed-length quantizing method by deleting a predetermined number of lower order bits of each of the frequency components.

9. 发明授权

US07486411B2 Image processing device forming an image of stored image data together with additional information according to an image formation count 失效
标题翻译：图像处理装置根据图像形成计数与附加信息一起形成存储的图像数据的图像
公开(公告)号：US07486411B2
公开(公告)日：2009-02-03
申请号：US10230090
申请日：2002-08-29
申请人： Takahiro Yagishita , Yukiko Yamazaki
发明人： Takahiro Yagishita , Yukiko Yamazaki
IPC分类号： G06F15/00 , G03B7/00
CPC分类号： H04N1/32144 , G06K15/02 , H04N1/00832 , H04N2201/3214 , H04N2201/3216 , H04N2201/3271 , H04N2201/3274
摘要： When this image processing device forms an image on a sheet, an image data storage unit stores image data received by an image data reception unit. An image formation count unit counts the number of times the image of the stored image data is formed by an image output unit. An information addition unit adds additional information to the image data according to the counted number of times. The image output unit forms the image of the image data together with the additional information on the sheet.
摘要翻译：当该图像处理装置在纸张上形成图像时，图像数据存储单元存储由图像数据接收单元接收的图像数据。图像形成计数单元对由图像输出单元形成的图像数据的图像的次数进行计数。信息添加单元根据计数次数将附加信息添加到图像数据。图像输出单元与片材上的附加信息一起形成图像数据的图像。

10. 发明授权

US06603884B2 Image processing system for compressing image data including binary image data and continuous tone image data by a sub-band transform method with a high-compression rate 失效
公开(公告)号：US06603884B2
公开(公告)日：2003-08-05
申请号：US10175837
申请日：2002-06-21
申请人： Nekka Matsuura , Yukiko Yamazaki , Takahiro Yagishita
发明人： Nekka Matsuura , Yukiko Yamazaki , Takahiro Yagishita
IPC分类号： G06K936
CPC分类号： G06T9/005 , G06T9/007
摘要： An image processing system which compresses an image including both a binary image and a continuous tone image by a sub-band transform method with a high compression rate. A 2×2 pixel matrix block is extracted from image data. A transform factor having a plurality of frequency components is obtained from the 2×2 pixel matrix block data. The transform factor is quantized by a fixed-length quantizing method by deleting a predetermined number of lower order bits of each of the frequency components.

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