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41 条记录 (耗时 0.015 秒)

    Image processing apparatus, image forming apparatus, image forming method, image processing program, and recording medium
    1.
    发明授权
    Image processing apparatus, image forming apparatus, image forming method, image processing program, and recording medium 有权
    图像处理装置，图像形成装置，图像形成方法，图像处理程序和记录介质

    公开(公告)号：US08125693B2

    公开(公告)日：2012-02-28

    申请号：US12211572

    申请日：2008-09-16

    申请人： Hiroshi Arai

    发明人： Hiroshi Arai

    IPC分类号： G06F3/014 ,  G06K9/02

    CPC分类号： H04N1/38 ,  H04N1/00803 ,  H04N1/32363 ,  H04N2201/3288 ,  H04N2201/3295

    摘要： Disclosed is an image processing apparatus that receives image data scanned by first and second image scanning units and performs various image processing. The apparatus includes first and second blank-sheet detection units that detect whether the scanned image data represent a blank sheet. The image processing apparatus determines storage or deletion of the scanned image data based on detection results of the blank-sheet detection units.

    摘要翻译： 公开了一种图像处理装置，其接收由第一和第二图像扫描单元扫描的图像数据，并执行各种图像处理。 该装置包括检测扫描图像数据是否表示空白纸张的第一和第二纸张检测单元。 图像处理装置基于检查结果确定扫描图像数据的存储或删除。

    Shading correction method and apparatus
    2.
    发明授权
    Shading correction method and apparatus 失效
    阴影校正方法和装置

    公开(公告)号：US5347370A

    公开(公告)日：1994-09-13

    申请号：US174526

    申请日：1993-12-28

    申请人： Mitsuhiro Ishihara ,  Mineo Kubota ,  Takashi Kanda ,  Toru Kitta ,  Mitsuo Tsuchiya

    发明人： Mitsuhiro Ishihara ,  Mineo Kubota ,  Takashi Kanda ,  Toru Kitta ,  Mitsuo Tsuchiya

    IPC分类号： H04N1/401 ,  G06K9/02

    CPC分类号： H04N1/401

    摘要： Shading correction is effected by partitioning a white standard surface into a plurality of scanning blocks having the same number of scanning lines, scanning the standard surface by block to determine block median values in a first processing stage, determining global median values from the block median values in a second processing stage, and subjecting objective image data read from a given original image to arithmetic such as proportioning calculation. With the two-stage processing, shading distortion caused due to nonuniformity in sensitivity of an image scanning system can be rationally and reliably corrected to a high degree with a simple processing circuit.

    摘要翻译： 通过将白色标准表面分割成具有相同数目的扫描线的多个扫描块，通过逐块扫描标准表面以确定第一处理阶段中的块中值，从块中值确定全局中值来实现阴影校正 在第二处理阶段中，对从给定原始图像读取的目标图像数据进行比例计算等算术。 通过两级处理，可以通过简单的处理电路高度可靠地校正由于图像扫描系统的灵敏度不均匀引起的阴影失真。

    Visual display of unrecognizable characters in optical character recognition machines
    3.
    发明授权
    Visual display of unrecognizable characters in optical character recognition machines 失效
    在光学识别机器上可视化显示不可修改的字符

    公开(公告)号：US3848228A

    公开(公告)日：1974-11-12

    申请号：US36788073

    申请日：1973-06-07

    申请人： OPTICAL BUSINESS MACHINES

    发明人： MACNEILL J

    IPC分类号： G02B26/12 ,  G06K9/03 ,  G06K9/20 ,  G06K9/02

    CPC分类号： G06K9/033

    摘要： A selectively operable optical path is provided to permit visual display of a character that cannot be recognized by an optical character recognition machine. Visual display of such characters permits visual observation of the enlarged character by an operator who, if he recognizes the character can insert it by a keyboard mechanism and if he cannot recognize it he may reject the document as unintelligible.

    摘要翻译： 提供了一种选择性可操作的光路以允许视觉显示由光学字符识别机不能被识别的字符。 这样的字符的视觉显示允许操作者对放大字符的视觉观察，如果他识别出角色可以通过键盘机构插入，并且如果他不能识别它，则他可以拒绝该文档是不可理解的。

    Character data search system
    6.
    发明授权
    Character data search system 失效
    字符数据搜索系统

    公开(公告)号：US3818445A

    公开(公告)日：1974-06-18

    申请号：US31631572

    申请日：1972-12-18

    申请人： IBM

    发明人： NEVILLE R

    IPC分类号： G06K9/20 ,  G06K9/32 ,  G06K9/02

    CPC分类号： G06K9/32

    摘要： A character data search system which utilizes a plurality of small area scans which are located according to the probability that the field containing the desired information to be recognized is in a given location on the documents. Furthermore, the field is recognized by indicating key characteristics contained therein. The scanning of the field is of a multiple scan type and the scans may partially overlap each other depending upon the characteristics being searched for and the probability of finding the desired data in a given location. Also, for documents of varying size, the location of the scans may be made a function of document size.

    摘要翻译： 一种字符数据搜索系统，其利用根据包含要识别的期望信息的字段位于文档上的给定位置的位置而定位的多个小区域扫描。 此外，通过指示其中包含的关键特征来识别该领域。 场的扫描是多扫描类型，并且扫描可以根据正在搜索的特征和在给定位置中找到所需数据的概率而部分地彼此重叠。 此外，对于不同大小的文档，扫描的位置可以作为文档大小的函数。

    Optical card-reading apparatus
    7.
    发明授权
    Optical card-reading apparatus 失效
    光读卡器

    公开(公告)号：US3619569A

    公开(公告)日：1971-11-09

    申请号：US3619569D

    申请日：1970-07-15

    申请人： RCA CORP

    发明人： HOEHN JACOB GEORGE ,  MANCINI RONALD ALFRED

    IPC分类号： G06K5/00 ,  G06K7/016 ,  G06K7/10 ,  G01N21/48 ,  G06K9/02

    CPC分类号： G06K7/10851 ,  G06K5/00 ,  G06K7/0163

    摘要： A mark sense card reader employs dual-threshold circuitry to indicate the presence, absence or inability to determine the presence or absence of marks such as pencil marks on a card. The circuitry includes a light-sensing transducer coupled to first and second differential amplifiers. The first such amplifier produces an indication only when a mark is definitely present. The second such amplifier produces an indication both when a mark is present and when the light level is such that no decision can be made as to whether or not a mark is present. The presence of this last indication concurrently with the absence of the other such indication means that no decision can be reached as to whether or not a mark is present. This situation may occur in cases of a poor erasure, or very light marks and in such cases the circuitry of the present disclosure causes the card to be rejected.