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1. 发明授权

US06266441B1 Image forming apparatus capable of recognizing top and bottom of document image 失效
标题翻译：能够识别文件图像的顶部和底部的图像形成装置
公开(公告)号：US06266441B1
公开(公告)日：2001-07-24
申请号：US09276750
申请日：1999-03-26
申请人： Hideyuki Hashimoto , Shoji Imaizumi , Takayuki Nabeshima , Kazuomi Sakatani
发明人： Hideyuki Hashimoto , Shoji Imaizumi , Takayuki Nabeshima , Kazuomi Sakatani
IPC分类号： G06K900
CPC分类号： G06K9/3208
摘要： An image forming apparatus automatically identifying top and bottom of document image based on characteristics with regard to shapes or positions of data, etc. recorded on document. Distribution states of pixel cumulative values in main scanning direction and sub scanning direction of image signals provided by scanning the document, are analyzed and top and bottom of the document image is identified from the result of analysis. Further, it is possible to identify the top and bottom of the document image by analyzing the distribution states the pixel cumulative values in the main scanning direction and the sub scanning direction of the image signals and identifying letter series regions and line segment regions displaced therefrom. In addition thereto, it is possible to automatically identify the top and bottom of the document image based on distribution states in the main scanning direction and the sub scanning direction of specific signs included in the image signals provided by scanning the document or distribution states of pixel cumulative values of specific image regions including the specific signs.
摘要翻译：图像形成装置基于关于记录在文档上的数据等的形状或位置的特性自动识别文档图像的顶部和底部。分析通过扫描文档提供的图像信号的主扫描方向和副扫描方向上的像素累积值的分布状态，并根据分析结果识别文档图像的顶部和底部。此外，通过分析图像信号的主扫描方向和副扫描方向上的像素累积值和从其偏移的识别字母串行区域和线段区域的分布状态，可以识别文档图像的顶部和底部。除此之外，还可以基于通过扫描文档或像素的分布状态提供的图像信号中包含的特定符号的主扫描方向和副扫描方向上的分布状态来自动识别文档图像的顶部和底部包括特定符号的特定图像区域的累积值。

2. 发明授权

US5889884A Image forming apparatus capable of recognizing top and bottom of document image 失效
标题翻译：能够识别文件图像的顶部和底部的图像形成装置
公开(公告)号：US5889884A
公开(公告)日：1999-03-30
申请号：US652180
申请日：1996-05-23
申请人： Hideyuki Hashimoto , Shoji Imaizumi , Takayuki Nabeshima , Kazuomi Sakatani
发明人： Hideyuki Hashimoto , Shoji Imaizumi , Takayuki Nabeshima , Kazuomi Sakatani
IPC分类号： G06K9/32 , G06K9/00 , G06K9/34
CPC分类号： G06K9/3208
摘要： An image forming apparatus automatically identifying top and bottom of document image based on characteristics with regard to shapes or positions of data, etc. recorded on document. Distribution states of pixel cumulative values in main scanning direction and sub scanning direction of image signals provided by scanning the document, are analyzed and top and bottom of the document image is identified from the result of analysis. Further, it is possible to identify the top and bottom of the document image by analyzing the distribution states the pixel cumulative values in the main scanning direction and the sub scanning direction of the image signals and identifying letter series regions and line segment regions displaced therefrom. In addition thereto, it is possible to automatically identify the top and bottom of the document image based on distribution states in the main scanning direction and the sub scanning direction of specific signs included in the image signals provided by scanning the document or distribution states of pixel cumulative values of specific image regions including the specific signs.
摘要翻译：图像形成装置基于关于记录在文档上的数据等的形状或位置的特性自动识别文档图像的顶部和底部。分析通过扫描文档提供的图像信号的主扫描方向和副扫描方向上的像素累积值的分布状态，并根据分析结果识别文档图像的顶部和底部。此外，通过分析图像信号的主扫描方向和副扫描方向上的像素累积值和从其偏移的识别字母串行区域和线段区域的分布状态，可以识别文档图像的顶部和底部。除此之外，还可以基于通过扫描文档或像素的分布状态提供的图像信号中包含的特定符号的主扫描方向和副扫描方向上的分布状态来自动识别文档图像的顶部和底部包括特定符号的特定图像区域的累积值。

3. 发明授权

US5987176A Image processing device 失效
标题翻译：图像处理装置
公开(公告)号：US5987176A
公开(公告)日：1999-11-16
申请号：US666614
申请日：1996-06-18
申请人： Shoji Imaizumi , Takayuki Nabeshima , Hideyuki Hashimoto , Kazuomi Sakatani
发明人： Shoji Imaizumi , Takayuki Nabeshima , Hideyuki Hashimoto , Kazuomi Sakatani
IPC分类号： G06K9/20 , G06K9/32 , G06T9/00 , H04N1/387 , H04N1/40 , G06K9/36
CPC分类号： G06K9/3208 , G06T9/005
摘要： A method and device for processing image data for a document includes the steps of reading RGB image data for the document; dividing the document image data into a plurality of blocks including a prescribed pixel matrix; calculating an average value information and a gradation range index for each of the blocks; converting the data for each pixel of each of the blocks into coded image data based on the average value information and the gradation range index so that the coded image data defines each pixel with fewer gradation levels than the original image data; storing in a memory unit the gradation range index and coded data, which were obtained for each block through the converting step; forming letter distribution histograms for a primary scanning direction and a secondary scanning direction for each block determined to belong to a letter image; identifying a direction in which letters of the document are aligned based on a number of change points in the histogram for the primary scanning direction and a number of change points in the histogram for the secondary scanning direction; decoding the coded data for each of the blocks based on the respective average value information and gradation range index in the memory unit for the block; and forming an image on copy paper based on the decoded data.
摘要翻译：用于处理文档的图像数据的方法和装置包括读取文档的RGB图像数据的步骤; 将文档图像数据分割成包括规定的像素矩阵的多个块; 计算每个块的平均值信息和灰度范围索引; 基于平均值信息和灰度范围指标将每个块的每个像素的数据转换为编码图像数据，使得编码图像数据定义具有比原始图像数据更少的灰度级的每个像素; 在存储器单元中存储通过转换步骤为每个块获得的灰度范围索引和编码数据; 为确定属于字母图像的每个块形成用于主扫描方向和副扫描方向的字母分布直方图; 基于副扫描方向的直方图的直方图的变化点的数量和副扫描方向的直方图的变化点的数量来识别文档的字母对齐的方向; 基于块的存储单元中的相应平均值信息和灰度范围索引，对每个块的编码数据进行解码; 以及基于解码的数据在复印纸上形成图像。

4. 发明授权

US06538771B1 Image processor 失效
标题翻译：图像处理器
公开(公告)号：US06538771B1
公开(公告)日：2003-03-25
申请号：US09009239
申请日：1998-01-20
申请人： Kazuomi Sakatani , Shoji Imaizumi , Junji Nishigaki
发明人： Kazuomi Sakatani , Shoji Imaizumi , Junji Nishigaki
IPC分类号： H04N1405
CPC分类号： G06T9/007 , G06T9/00 , H04N1/405 , H04N1/4105
摘要： In an image processor, multi-level image data are divided into blocks, and compressed in the unit of block. The compressed multi-level image data of a block are converted to compressed bi-level image data without expanding the multi-level image data. For example, the compressed multi-level image data on an image of uniform density are converted to compressed bi-level image data expressed with area gradation. In another image processor, the compressed multi-level image data of a block are converted to compressed multi-level image data, without expanding the multi-level image data. For example, the compressed multi-level image data on an image of bi-level image expressed with area gradation are converted to compressed multi-level image data of a half-tone image.
摘要翻译：在图像处理器中，多级图像数据被分成块，并以块为单位进行压缩。将块的压缩多级图像数据转换为压缩的双电平图像数据，而不扩展多级图像数据。例如，将均匀密度的图像上的压缩的多级图像数据转换成以区域灰度表示的压缩双电平图像数据。在另一图像处理器中，块的压缩多级图像数据被转换为压缩多级图像数据，而不扩展多级图像数据。例如，将以区域灰度表示的双电平图像的图像上的压缩多级图像数据转换为半色调图像的压缩多级图像数据。

5. 发明授权

US06330076B1 Image processing apparatus 失效
标题翻译：图像处理装置
公开(公告)号：US06330076B1
公开(公告)日：2001-12-11
申请号：US08961664
申请日：1997-10-31
申请人： Shoji Imaizumi , Kazuomi Sakatani
发明人： Shoji Imaizumi , Kazuomi Sakatani
IPC分类号： H04N1120
CPC分类号： G06T9/005 , H04N1/646
摘要： An image processing apparatus has a data conversion unit which converts RGB image data of a document to luminance component and chromaticity component, an optimization process unit which converts the distribution state of the luminance component data and chromaticity component data so as to achieve a distribution from a minimum value to a maximum value of the data within a color space, an encoding process unit which encodes data of each pixel as code data obtained by quantization at a gradient level less than the data within a range of gradient distribution based on mean value information, a memory which stores mean value information, gradient range exponent, and code data of each block obtained by the encoding process in the encoding unit, a decoding process unit which decodes code data in block units based on the mean value information and gradient range exponent stored in the memory, and reverse optimization process unit which returns the distribution state of data of the luminance component and chromaticty component decoded in the decoding process unit to a state prior to conversion in the optimization process unit.
摘要翻译：一种图像处理装置具有将文档的RGB图像数据转换为亮度分量和色度分量的数据转换单元，转换亮度分量数据和色度分量数据的分布状态的优化处理单元，以便实现从最小值到颜色空间内的数据的最大值;编码处理单元，其将每个像素的数据编码为通过基于平均值信息的梯度分布范围内的数据的梯度级的量化获得的代码数据，存储器，其存储通过编码单元中的编码处理获得的每个块的平均值信息，梯度范围指数和代码数据;解码处理单元，其基于存储的平均值信息和梯度范围指数以块为单位对码数据进行解码在存储器中，以及返回亮度数据的分布状态的反向优化处理单元在解码处理单元中解码的分量和色度分量变为在优化处理单元中的转换之前的状态。

6. 发明授权

US5987175A Image forming apparatus and method based on reduction images and encoding 失效
标题翻译：基于缩小图像和编码的图像形成装置和方法
公开(公告)号：US5987175A
公开(公告)日：1999-11-16
申请号：US648834
申请日：1996-05-16
申请人： Shoji Imaizumi , Shigeru Moriya , Takayuki Nabeshima
发明人： Shoji Imaizumi , Shigeru Moriya , Takayuki Nabeshima
IPC分类号： G06T9/00 , H04N1/41 , G06K9/36 , G06F15/00 , G06K9/32 , H04N1/393
CPC分类号： H04N1/41
摘要： An image forming apparatus includes an encode process unit for: (a) allocating image data of an original document into blocks containing a predetermined pixel matrix, and (b) determining from the image data in each block a mean value information and a gradient range exponent for each block; a series copy data generating unit for generating reduction image data for a plurality of reduction images by using the mean value information for each of the blocks as image data for the reduction images so that each pixel of the reduction images corresponds to a respective one of the plurality of blocks of the original document image data; and an image forming unit for forming images based on the reduction image data generated by the series copy data generating unit.
摘要翻译：一种图像形成装置包括：编码处理单元，用于：（a）将原始文档的图像数据分配成包含预定像素矩阵的块，以及（b）从每个块中的图像数据确定平均值信息和梯度范围指数对于每个块; 串行复制数据生成单元，用于通过使用每个块的平均值信息来生成用于多个缩小图像的缩小图像数据，作为缩小图像的图像数据，使得缩小图像的每个像素对应于原始图像数据的多个块; 以及图像形成单元，用于基于由串联复制数据生成单元生成的缩小图像数据形成图像。

7. 发明授权

US5805303A Image processing device 失效
标题翻译：图像处理装置
公开(公告)号：US5805303A
公开(公告)日：1998-09-08
申请号：US666691
申请日：1996-06-18
申请人： Shoji Imaizumi , Takayuki Nabeshima , Shigeru Moriya
发明人： Shoji Imaizumi , Takayuki Nabeshima , Shigeru Moriya
IPC分类号： H04N11/04 , G06T9/00 , H04N1/415 , H04N1/60 , H04N19/00 , H04N19/124 , H04N19/136 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/423 , H04N19/85 , H04N19/90 , H04N19/93 , H04N1/419 , H04N1/417
CPC分类号： H04N1/60 , G06T9/005
摘要： A method of image processing includes the steps of allocating image data of a document into a plurality of blocks of a predetermined pixel matrix; determining a gradient range exponent and a mean value information for each of the blocks based on the image data contained in each of the blocks; encoding the image data of each pixel of each of the blocks into code data based on the mean value information and gradient range exponent for the respective block so that the code data defines each pixel with fewer gradation levels than the image data; determining whether or not a mutually adjoining block is related to a solid image of a same density relative to a block subject to the encoding process; and executing a run length encoding process for a batch of mean value information, gradient range exponent, and code data based on a run length of adjoining blocks discriminated as related to a solid image of the same density.
摘要翻译：一种图像处理方法包括以下步骤：将文档的图像数据分配成预定像素矩阵的多个块; 基于每个块中包含的图像数据确定每个块的梯度范围指数和平均值信息; 基于各个块的平均值信息和梯度范围指数，将每个块的每个像素的图像数据编码为代码数据，使得代码数据定义具有比图像数据更少的灰度级的每个像素; 确定相邻块是否与相对于经过编码处理的块相同密度的实心图像相关; 并且基于与相同密度的实心图像相关的相邻块的游程长度来执行一批平均值信息，梯度范围指数和代码数据的游程长度编码处理。

8. 发明申请

US20060008139A1 Image processing apparatus, image forming appratus and color image determination method thereof 有权
标题翻译：图像处理装置，图像形成装置及其彩色图像确定方法
公开(公告)号：US20060008139A1
公开(公告)日：2006-01-12
申请号：US11169691
申请日：2005-06-30
申请人： Yoshihiko Hirota , Katsuhisa Toyama , Shoji Imaizumi , Hideyuki Hashimoto , Kazuhiro Ishiguro
发明人： Yoshihiko Hirota , Katsuhisa Toyama , Shoji Imaizumi , Hideyuki Hashimoto , Kazuhiro Ishiguro
IPC分类号： G06K9/00
CPC分类号： H04N1/56 , H04N1/46
摘要： The inventive image processing apparatus takes steps of 1) dividing an image to be processed into numerals of blocks; 2) determining whether a block is a color block or not; 3) determining whether the image is a color image or not based on the rate of color blocks to the entire blocks. Thereby, valid color pixel rate can be obtained at blocks belonging to a color region even though an image is almost monochrome but partially colored. Accordingly, the inventive image processing apparatus can appropriately determine whether the image is a color image or not.
摘要翻译：本发明的图像处理装置采取以下步骤：1）将要处理的图像划分为块的数字; 2）确定块是否是颜色块; 3）基于整个块的颜色块的速率来确定图像是否是彩色图像。因此，即使图像几乎是单色但部分着色，也可以在属于颜色区域的块处获得有效的彩色像素速率。因此，本发明的图像处理装置可以适当地确定图像是否是彩色图像。

9. 发明授权

US07319786B2 Image processing apparatus, image forming apparatus and color image determination method thereof 有权
标题翻译：图像处理装置，图像形成装置及其彩色图像确定方法
公开(公告)号：US07319786B2
公开(公告)日：2008-01-15
申请号：US11375075
申请日：2006-03-15
申请人： Yoshihiko Hirota , Katsuhisa Toyama , Shoji Imaizumi , Hideyuki Hashimoto , Kazuhiro Ishiguro
发明人： Yoshihiko Hirota , Katsuhisa Toyama , Shoji Imaizumi , Hideyuki Hashimoto , Kazuhiro Ishiguro
IPC分类号： G06K9/00
CPC分类号： H04N1/56 , H04N1/46
摘要： The inventive image processing apparatus takes steps of 1) dividing an image to be processed into numerals of blocks; 2) determining whether a block is a color block or not; 3) determining whether the image is a color image or not based on the rate of color blocks to the entire blocks. Thereby, valid color pixel rate can be obtained at blocks belonging to a color region even though an image is almost monochrome but partially colored. Accordingly, the inventive image processing apparatus can appropriately determine whether the image is a color image or not.
摘要翻译：本发明的图像处理装置采取以下步骤：1）将要处理的图像划分为块的数字; 2）确定块是否是颜色块; 3）基于整个块的颜色块的速率来确定图像是否是彩色图像。因此，即使图像几乎是单色但部分着色，也可以在属于颜色区域的块处获得有效的彩色像素速率。因此，本发明的图像处理装置可以适当地确定图像是否是彩色图像。

10. 发明授权

US07177462B2 Image processing apparatus, image forming apparatus and color image determination method thereof 有权
标题翻译：图像处理装置，图像形成装置及其彩色图像确定方法
公开(公告)号：US07177462B2
公开(公告)日：2007-02-13
申请号：US11169691
申请日：2005-06-30
申请人： Yoshihiko Hirota , Katsuhisa Toyama , Shoji Imaizumi , Hideyuki Hashimoto , Kazuhiro Ishiguro
发明人： Yoshihiko Hirota , Katsuhisa Toyama , Shoji Imaizumi , Hideyuki Hashimoto , Kazuhiro Ishiguro
IPC分类号： G06K9/00
CPC分类号： H04N1/56 , H04N1/46
摘要： The inventive image processing apparatus takes steps of 1) dividing an image to be processed into numerals of blocks; 2) determining whether a block is a color block or not; 3) determining whether the image is a color image or not based on the rate of color blocks to the entire blocks. Thereby, valid color pixel rate can be obtained at blocks belonging to a color region even though an image is almost monochrome but partially colored. Accordingly, the inventive image processing apparatus can appropriately determine whether the image is a color image or not.
摘要翻译：本发明的图像处理装置采取以下步骤：1）将要处理的图像划分为块的数字; 2）确定块是否是颜色块; 3）基于整个块的颜色块的速率来确定图像是否是彩色图像。因此，即使图像几乎是单色但部分着色，也可以在属于颜色区域的块处获得有效的彩色像素速率。因此，本发明的图像处理装置可以适当地确定图像是否是彩色图像。

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