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    Image recognition method and device and copier and scanner employing same
    4.
    发明授权
    Image recognition method and device and copier and scanner employing same 失效
    图像识别方法和装置以及使用它的复印机和扫描仪

    公开(公告)号：US06188787B1

    公开(公告)日：2001-02-13

    申请号：US08826701

    申请日：1997-04-07

    申请人： Kouichi Ohmae ,  Shinya Sonoda ,  Ikuo Kinoshita ,  Hitoshi Nakamura ,  Junji Hiraishi

    发明人： Kouichi Ohmae ,  Shinya Sonoda ,  Ikuo Kinoshita ,  Hitoshi Nakamura ,  Junji Hiraishi

    IPC分类号： G06K978

    CPC分类号： H04N1/00846 ,  G03G21/046 ,  G07D7/00 ,  H04N1/00875

    摘要： An image recognition method and device detects an object mark reliably even when the mark is defaced with a different color. RGB signals are transmitted to color extraction unit. The color extraction unit has a characteristic color extraction block to extract the characteristic color of the object mark. A binary image is generated from the extracted pixels which are the color of the mark and stored in storage device. A mark detection unit detects the location of the mark in the stored image data and an image extraction unit extracts the region where the mark is located and obtains a feature count. A matching unit compares the feature count with a reference pattern and finds the goodness of fit. A control unit subjects the goodness of fit value to threshold value processing to determine whether this is a nonreproducible document. If the mark has been defaced with black ink, the pixels constituting the mark are extracted by a likely color extraction block. A binary image is generated and stored in storage device. Thus, the defaced mark can undergo the same recognition processing as the normal mark, and both can be recognized.

    摘要翻译： 即使当标记被不同颜色污染时，图像识别方法和装置可靠地检测对象标记。 RGB信号被传送到颜色提取单元。 颜色提取单元具有特征颜色提取块，以提取对象标记的特征颜色。 从作为标记的颜色的提取像素生成二值图像并存储在存储装置中。 标记检测单元检测所存储的图像数据中的标记的位置，并且图像提取单元提取标记所在的区域并获得特征数。 匹配单元将特征计数与参考模式进行比较，并找到拟合优度。 控制单元对拟合值进行阈值处理，以确定这是否是不可再现的文档。 如果标记已被黑色油墨弄脏，则构成标记的像素由可能的颜色提取块提取。 二进制图像生成并存储在存储设备中。 因此，污损标记可以进行与正常标记相同的识别处理，并且都可以识别。

    Image reader with adjustable contrast range
    5.
    发明授权
    Image reader with adjustable contrast range 失效
    具有可调整对比度范围的图像读取器

    公开(公告)号：US5329111A

    公开(公告)日：1994-07-12

    申请号：US904053

    申请日：1992-06-26

    申请人： Shinya Sonoda ,  Atsushi Noda ,  Hiroki Tabata ,  Masashi Sugimoto ,  Junji Hiraishi

    发明人： Shinya Sonoda ,  Atsushi Noda ,  Hiroki Tabata ,  Masashi Sugimoto ,  Junji Hiraishi

    IPC分类号： H04N1/407 ,  H04N1/60 ,  H04N5/243 ,  H01J40/14 ,  H04N3/14

    CPC分类号： H04N5/361 ,  H04N1/4076 ,  H04N1/6027 ,  H04N5/243

    摘要： An image input device photoelectrically reads a document and outputs digital data. This image reader includes a first voltage generating circuit for generating a first voltage for setting an upper limit of contrast, a second voltage generating circuit for generating a second voltage for setting a lower limit of contrast, and an A/D converter for converting an input analog signal to a digital signal in accordance with the first and second voltages. At least one of the voltages generated by the first voltage generating circuit and second voltage generating circuit is variable. Also disclosed is an image reader including a dark voltage memory circuit, storing dark voltages corresponding to color signals R, G and B, a first switching circuit sequentially switching the output of the dark voltage memory circuit and outputting a selected dark voltage, a second switching circuit adapted to synchronously output a selected color signal corresponding to the selected dark voltage, and a differential amplifier subtracting the selected dark voltage from said selected color signal.

    摘要翻译： 图像输入装置光电读取文件并输出数字数据。 该图像读取器包括用于产生用于设定对比度上限的第一电压的第一电压产生电路，用于产生用于设置对比度下限的第二电压的第二电压产生电路，以及用于转换输入的A / D转换器 根据第一和第二电压对数字信号进行模拟信号。 由第一电压产生电路和第二电压产生电路产生的电压中的至少一个是可变的。 还公开了一种图像读取器，其包括暗电压存储电路，存储对应于彩色信号R，G和B的暗电压，第一开关电路依次切换暗电压存储电路的输出并输出选择的暗电压，第二开关 电路，其适于同步地输出对应于所选择的暗电压的选定颜色信号，以及差分放大器，从所述选择的颜色信号中减去所选择的暗电压。

    Non-reproducible image formation preventing apparatus and image formation apparatus
    6.
    发明授权
    Non-reproducible image formation preventing apparatus and image formation apparatus 失效
    不可重现的图像形成防止装置和图像形成装置

    公开(公告)号：US06538759B1

    公开(公告)日：2003-03-25

    申请号：US09325774

    申请日：1999-06-04

    申请人： Junji Hiraishi ,  Kiyoshi Imai ,  Takashi Kakiuchi ,  Keitaro Taniguchi

    发明人： Junji Hiraishi ,  Kiyoshi Imai ,  Takashi Kakiuchi ,  Keitaro Taniguchi

    IPC分类号： G06K1502

    CPC分类号： H04N1/00843 ,  Y10S283/902

    摘要： An non-reproducible image formation preventing apparatus has a recognition section, a storage section and a comparison/determination section. The recognition section performs recognition processing for received image data, determines whether or not the image data is an non-reproducible image, and outputs the determination result to an image formation section. The storage section stores non-reproducible image data recognized as an non-reproducible image by the recognition section. The comparison/determination section compares the non-reproducible image data stored in the storage section with an image based on input image data given through an image process section and finding a match degree therebetween. If either of the comparison/determination section and the recognition section determines that the image is an non-reproducible image, a detection signal is sent to the image formation section for stopping normal print. Since the data is digital data, stored non-reproducible images are also stable and a determination can be made at high speed.

    摘要翻译： 不可重现的图像形成防止装置具有识别部分，存储部分和比较/确定部分。 识别部对接收到的图像数据进行识别处理，判定图像数据是否为不可重现的图像，并将判定结果输出到图像形成部。 存储部存储识别部识别为不可重现图像的不可重现图像数据。 比较/确定部分基于通过图像处理部分给出的输入图像数据将存储在存储部分中的不可重现的图像数据与图像进行比较，并找到它们之间的匹配度。 如果比较/确定部分和识别部分中的任一个确定图像是不可重现的图像，则检测信号被发送到图像形成部分以停止正常打印。 由于数据是数字数据，存储的不可重现的图像也是稳定的，并且可以高速进行确定。

    Image recognition apparatus
    7.
    发明授权
    Image recognition apparatus 有权
    图像识别装置

    公开(公告)号：US07327889B1

    公开(公告)日：2008-02-05

    申请号：US10089721

    申请日：2000-10-03

    申请人： Kiyoshi Imai ,  Mitsuru Matsumura ,  Yoshitaka Okamoto ,  Junji Hiraishi

    发明人： Kiyoshi Imai ,  Mitsuru Matsumura ,  Yoshitaka Okamoto ,  Junji Hiraishi

    IPC分类号： G06K9/68

    CPC分类号： G07D7/2033 ,  G06K9/00 ,  G07D2205/0011

    摘要： An image processing portion (1) performs binarization, segmentation, and feature extraction of a received image using a RAM (2), compares the extracted feature with specific pattern data stored in a dictionary data memory (3), performs recognition processing, and provides recognition results to a CPU (4). The dictionary data memory is a volatile memory, in which specific pattern data held by the CPU is written by the CPU when power is turned on. Since the data stored in the volatile memory is erased when power is turned off, the dictionary data memory can be removed and the contents are analyzed when the power is turned off without causing any trouble.

    摘要翻译： 图像处理部分（1）使用RAM（2）对接收到的图像进行二值化，分割和特征提取，将所提取的特征与存储在字典数据存储器（3）中的特定图案数据进行比较，执行识别处理，并提供 识别结果到CPU（4）。 字典数据存储器是易失性存储器，其中由CPU保持的特定模式数据由CPU在电源接通时被写入。 由于在电源关闭时存储在易失性存储器中的数据被擦除，所以可以去除字典数据存储器，并且在电源关闭时分析内容，而不引起任何麻烦。

    Image recognition-processing device and method using pattern elements
    8.
    发明授权
    Image recognition-processing device and method using pattern elements 失效
    图像识别处理装置和使用图案元素的方法

    公开(公告)号：US07272260B1

    公开(公告)日：2007-09-18

    申请号：US09479886

    申请日：2000-01-10

    申请人： Takashi Kakiuchi ,  Junji Hiraishi ,  Keitaro Taniguchi ,  Tomoji Kagatani

    发明人： Takashi Kakiuchi ,  Junji Hiraishi ,  Keitaro Taniguchi ,  Tomoji Kagatani

    IPC分类号： G06K9/64 ,  G06K9/62 ,  G06K9/00

    CPC分类号： G06K9/4609

    摘要： A image recognition device using pattern elements is disclosed. The device comprises an image recognition device, a recording medium, and an image processing device which is be capable of executing recognition processing accurately and evaluating an input image even when the input image data is a different size because the input image has been magnified or reduced. To achieve the objectives, the image recognition device of this invention has a pattern element recognizing means to recognize the pattern elements obtained by dividing the input image into a plurality of regions which are compared with corresponding target pattern elements, and a pattern detection means to detect the relative position of the pattern elements, which determines whether the pattern elements detected by the pattern element recognizing means are arranged properly with respect to each other.

    摘要翻译： 公开了使用图案元件的图像识别装置。 该装置包括图像识别装置，记录介质和图像处理装置，其能够精确地执行识别处理并且即使当输入图像数据被放大或缩小时输入图像数据是不同的尺寸时也对输入图像进行评估 。 为了实现目的，本发明的图像识别装置具有图案元素识别装置，用于识别通过将输入图像分割成与对应的目标图案元素进行比较的多个区域而获得的图案元素，以及图案检测装置，用于检测 确定由图案元素识别装置检测到的图案元素是否相对于彼此适当布置的图案元素的相对位置。

    Image processing device and image input device equipped with a data synthesizing unit
    9.
    发明授权
    Image processing device and image input device equipped with a data synthesizing unit 失效
    具有数据合成单元的图像处理装置和图像输入装置

    公开(公告)号：US07218750B1

    公开(公告)日：2007-05-15

    申请号：US09562895

    申请日：2000-05-01

    申请人： Junji Hiraishi ,  Keitaro Taniguchi ,  Takashi Kakiuchi

    发明人： Junji Hiraishi ,  Keitaro Taniguchi ,  Takashi Kakiuchi

    IPC分类号： G06K9/00

    CPC分类号： G06T1/005 ,  G06K9/46 ,  G06T2201/0065

    摘要： The object of this invention is to provide an image processing device and image input device which creates strong features, or enhanced pattern which could be recognized when the image was read and which would prove difficult to eliminate through subsequent image processing. When the image is generated at the later step, these features would be easily recognized by the processing according to this invention because the image is equipped with the enhanced pattern which is easy to detect. In order to achieve this object, the image processing device according to this invention is equipped with a data synthesizing unit to synthesize the clear target pattern on the candidate target pattern which is not fully clear when the recognition unit has detected a pattern similar to the target pattern.

    摘要翻译： 本发明的目的是提供一种图像处理设备和图像输入设备，其创建强大的特征或增强的图案，当图像被读取时可以被识别，并且通过随后的图像处理将难以消除。 当在后面的步骤中产生图像时，通过根据本发明的处理将容易地识别这些特征，因为图像配备有易于检测的增强图案。 为了实现该目的，根据本发明的图像处理装置配备有数据合成单元，用于当识别单元已经检测到与目标相似的模式时，在候选目标图案上合成清晰目标图案，其不完全清晰 模式。