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    • 1. 发明授权
    • Image processing device and recording medium storing image processing program
    • 图像处理装置和存储图像处理程序的记录介质
    • US08660361B2
    • 2014-02-25
    • US13309619
    • 2011-12-02
    • Shanshan YuSatoshi Nakashima
    • Shanshan YuSatoshi Nakashima
    • G06K9/46
    • G06K9/00248
    • An image processing device includes a storage unit that stores dictionary information; a generating unit that extracts, from an input image, a plurality of characteristic point candidates, and generates a plurality of combinations that each include a plurality of characteristic point candidates; a removing unit that removes, for each of the combinations, at least one characteristic point candidate based on at least one of the dictionary information and information obtained by analyzing the input image; and a determining unit that acquires, for each of the combinations, results of matching the dictionary information with the combination of which the at least one characteristic point candidate has been removed, selects a combination of characteristic point candidates based on the acquired matching results, and determines, as the characteristic points, the plurality of characteristic point candidates included in the selected combination.
    • 图像处理装置包括存储字典信息的存储单元; 生成单元,从输入图像中提取多个特征点候选,并生成各自包括多个特征点候选的多个组合; 去除单元,用于基于所述字典信息和通过分析所述输入图像获得的信息中的至少一个,针对每个所述组合去除至少一个特征点候选; 以及确定单元,对于每个所述组合,获取所述字典信息与已经去除所述至少一个特征点候选的组合的匹配结果,基于所获取的匹配结果选择特征点候选的组合,以及 确定包括在所选择的组合中的多个特征点候选作为特征点。
    • 2. 发明授权
    • Document conversion and use system
    • 文件转换和使用系统
    • US08423888B2
    • 2013-04-16
    • US11905312
    • 2007-09-28
    • Junichi OdagiriSatoshi NakashimaShigeru YoshidaTakuroh Yamaguchi
    • Junichi OdagiriSatoshi NakashimaShigeru YoshidaTakuroh Yamaguchi
    • G06F17/00
    • G06F17/227G06F17/2247
    • A document conversion and use system which converts a first structured document into a second structured document different in structure from the first structured document, comprising: a template storage unit storing a template indicating the structure of the second structured document; a structure specification unit for reading out the template from the template storage unit and causing a user to specify an element or an element content constituting the template; a correspondence definition specification unit for causing the user to define the correspondence definition specification indicating the correspondence between the element in the first structured document and the element in the template; and an unit for analyzing the template structure to specify the element or the element content specified by the structure specification unit, searching for the element defined by the correspondence definition starting from the element or the element content, and performing conversion processing according to the search result.
    • 一种文档转换和使用系统,其将第一结构化文档转换成与第一结构化文档不同结构的第二结构化文档,包括:模板存储单元,存储指示第二结构化文档的结构的模板; 结构指定单元,用于从模板存储单元读出模板并使用户指定构成模板的元素或元素内容; 通信定义指定单元,用于使用户定义指示第一结构化文档中的元素与模板中的元素之间的对应关系的对应定义规范; 以及用于分析模板结构以指定由结构指定单元指定的元素或元素内容的单元,从元素或元素内容开始搜索由对应定义定义的元素,并且根据搜索结果执行转换处理 。
    • 8. 发明授权
    • Image forming apparatus and image forming method
    • 图像形成装置及图像形成方法
    • US07116445B2
    • 2006-10-03
    • US10770537
    • 2004-02-04
    • Akihiko UchiyamaHiroyuki YamazakiSatoshi Nakashima
    • Akihiko UchiyamaHiroyuki YamazakiSatoshi Nakashima
    • G06K15/00
    • H04N1/405
    • An object of this invention is to eliminate graininess caused by superposition of noise on an image reproduced as a hard copy. To achieve this object, this invention provides an image forming apparatus which forms an image corresponding to bitmap image data, including a determination unit which determines from the bitmap image data an image data area where a noise component is superposed, and an image processing unit which performs halftone processing for the bitmap image data so as to decrease the resolution in at least a predetermined direction for the image data area where the noise component is superposed, in comparison with an image data area where no noise component is superposed. More preferably, image formation based on the bitmap image data having undergone halftone processing by the image processing unit is performed by electrophotography, and the image processing unit performs halftone processing by using as the predetermined direction a scanning direction in forming a latent image with a light beam. Alternatively, the image processing unit performs halftone processing by dithering, and uses a threshold matrix having a matrix size larger in at least the predetermined direction for the image data area where the noise component is superposed, in comparison with the image data area where no noise component is superposed.
    • 本发明的目的是消除作为硬拷贝再现的图像上的噪声叠加引起的颗粒度。 为了实现该目的,本发明提供一种图像形成装置,其形成与位图图像数据对应的图像,该图像形成装置包括确定单元,该确定单元从位图图像数据确定重叠噪声分量的图像数据区域,以及图像处理单元, 与没有噪声分量叠加的图像数据区域相比,对位图图像数据进行半色调处理,以便降低对于重叠噪声分量的图像数据区域的至少预定方向的分辨率。 更优选地,基于通过图像处理单元进行了半色调处理的位图图像数据的图像形成是通过电子照相术执行的,并且图像处理单元使用光作为预定方向使用形成潜像的扫描方向来执行半色调处理 光束。 或者,图像处理单元通过抖动执行半色调处理,并且对于没有噪声的图像数据区域,与具有叠加噪声分量的图像数据区域相比,使用具有至少预定方向上的矩阵尺寸较大的阈值矩阵 组件叠加。