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    • 21. 发明授权
    • Image processing apparatus, image forming apparatus, image processing method, and recording medium
    • 图像处理装置,图像形成装置,图像处理方法和记录介质
    • US09237249B2
    • 2016-01-12
    • US13134416
    • 2011-06-07
    • Masakazu Ohira
    • Masakazu Ohira
    • H04N1/00H04N1/32G06T1/00
    • H04N1/00867H04N1/0087H04N1/00883H04N1/32229H04N1/32251H04N1/32309H04N1/32315
    • An image processing apparatus includes a watermark adding section for adding a watermark for copy control to an image, where the watermark includes a dot pattern which becomes visible when copy, and a pattern adding section for adding a predetermined pattern to an appropriate position of an image, wherein the watermark adding section includes a watermark generating section for generating a watermark for copy control, where the watermark includes a dot pattern which becomes invisible when copy, a determining section for determining whether or not the pattern adding section adds the predetermined pattern to the image, when the generated watermark is added to the image, and a region setting section for setting a region where the predetermined pattern is to be appeared at a different portion where the dot pattern is added, when the determining section determines that the predetermined pattern is to be added to the image.
    • 图像处理装置包括水印添加部分,用于将用于复制控制的水印添加到图像,其中水印包括当复制时变得可见的点图案,以及用于将预定图案添加到图像的适当位置的图案添加部分 其中,所述水印添加部分包括水印生成部分,用于生成用于复制控制的水印,其中所述水印包括当复制时变得不可见的点图案,确定部分,用于确定图案添加部分是否将预定图案添加到 图像,当生成的水印被添加到图像时,以及区域设置部分,用于设置在添加点图案的不同部分处出现预定图案的区域,当确定部分确定预定图案是 被添加到图像。
    • 24. 发明授权
    • Image processing method, image processing apparatus, image forming apparatus, and image reading apparatus
    • 图像处理方法,图像处理装置,图像形成装置和图像读取装置
    • US08265345B2
    • 2012-09-11
    • US11942584
    • 2007-11-19
    • Makio GotohMasakazu Ohira
    • Makio GotohMasakazu Ohira
    • G06K1/00G06K9/00
    • G06K9/4671G06K9/00442G06K2209/01
    • A document matching process section calculates feature points (e.g., the centroid) on the basis of an inputted document image, then selects a plurality of feature points from among the calculated feature points, and then calculates a hash value on the basis of the selected feature points. Then, on the basis of the calculated features, the document matching process section determines whether the document image is similar to a preliminary reference format (reference image). When it is determined as being similar, the document matching process section determines whether write-in is present in the document image, and then outputs a determination signal (a determination result indicating the presence or absence of write-in). In the determination of similarity of the document image, permission or non-permission for processing such as copying is determined more accurately than in the prior art.
    • 文档匹配处理部分基于输入的文档图像来计算特征点(例如质心),然后从所计算的特征点中选择多个特征点,然后基于所选择的特征来计算哈希值 积分 然后,基于所计算的特征,文档匹配处理部分确定文档图像是否类似于初步参考格式(参考图像)。 当确定为相似时,文档匹配处理部分确定文件图像中是否存在写入,然后输出确定信号(指示是否存在写入的确定结果)。 在确定文档图像的相似性时,比现有技术更准确地确定诸如复印的处理的许可或不允许。
    • 26. 发明授权
    • Image processing method, image processing apparatus, and image forming apparatus
    • 图像处理方法,图像处理装置和图像形成装置
    • US08055079B2
    • 2011-11-08
    • US12042996
    • 2008-03-05
    • Atsuhisa MorimotoMasakazu Ohira
    • Atsuhisa MorimotoMasakazu Ohira
    • G06K9/62
    • G06K9/38G06K2209/01
    • Based on an area detection signal, a layer separation section outputs a text component of a document, to a feature point calculating section, and generates four layers from a pictorial component of the document to output the generated layers to the feature point calculating section. The feature point calculating section sums feature points extracted for each component. A features calculating section calculates a hash value based on the feature points. A vote processing section searches a hash table based on the hash value, and votes for a reference image associated with the hash value. Based on the voting result, a similarity determination processing section determines whether the document image is similar to any reference image, and then outputs the determination result. Thus, even if the document contains a photograph, accurate matching can be performed.
    • 基于区域检测信号,层分离部分将文档的文本成分输出到特征点计算部分,并从文档的图形部分生成四层以将生成的层输出到特征点计算部分。 特征点计算部分对于每个分量提取的特征点求和。 特征计算部分基于特征点计算哈希值。 投票处理部分基于哈希值来搜索哈希表,并为与哈希值相关联的参考图像进行投票。 基于投票结果,相似度确定处理部分确定文档图像是否类似于任何参考图像,然后输出确定结果。 因此,即使文档包含照片,也可以进行准确的匹配。
    • 29. 发明申请
    • Image processing apparatus, image forming apparatus, image reading apparatus and image processing method
    • 图像处理装置,图像形成装置,图像读取装置以及图像处理方法
    • US20070253623A1
    • 2007-11-01
    • US11790646
    • 2007-04-26
    • Masakazu OhiraAtsuhisa Morimoto
    • Masakazu OhiraAtsuhisa Morimoto
    • G06K9/68
    • G06K9/4638G06K2209/01
    • Pixels of a binary image obtained by binarizing an image are scanned in a predetermined direction, labels are assigned to the pixels according to binarization information about the respective pixels, information about the assigned labels is stored sequentially for each of a plurality of lines along the predetermined direction, information about coordinate values in the binary image of pixels assigned the same label is stored, a determination is made as to whether or not, in a current line among the plurality of lines, there is a pixel assigned the same label as a label assigned to a pixel contained in a line which was scanned immediately before the current line, when a determination is made that there is no pixel assigned the same label, a feature point in a connected component formed by connecting together pixels specified by the coordinate values is calculated based on the stored information about the coordinate values, a feature vector representing a feature of the image is calculated based on the calculated feature point, and a similarity to reference image is determined based on the calculated feature vector.
    • 通过二值化图像获得的二进制图像的像素沿预定方向被扫描,根据关于各个像素的二值化信息将标签分配给像素,关于分配的标签的信息按照预定的顺序存储在多行中的每一行上 存储分配了相同标签的像素的二进制图像中的坐标值的信息,确定在多行中的当前行中是否存在与标签相同的标签的像素 分配给包含在当前行之前被扫描的行中的像素,当确定不存在分配相同标号的像素时,通过将由坐标值指定的像素连接在一起形成的连接分量中的特征点是 基于存储的关于坐标值的信息进行计算,计算表示图像的特征的特征向量 基于所计算的特征点,并且基于所计算的特征向量来确定与参考图像的相似度。