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    • 4. 发明申请
    • 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
    • US20080118112A1
    • 2008-05-22
    • 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。
    • 5. 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。
    • 9. 发明授权
    • Display system and method for detecting pointed position
    • 显示系统和检测指向位置的方法
    • US08154513B2
    • 2012-04-10
    • US12248481
    • 2008-10-09
    • Masakazu OhiraHitoshi Hirohata
    • Masakazu OhiraHitoshi Hirohata
    • G06F3/033
    • G06F3/0325G02F1/13338G02F2203/11
    • At least two infrared light-emitting areas are displayed within a display screen of a liquid crystal display apparatus. The infrared light-emitting areas are areas for emitting light having a wavelength in the infrared region. Then, an image is captured by an operating device in the direction of a position pointed by the operating device. A position on the display screen that is pointed by the operating device is calculated based on the positions of the infrared light-emitting areas that are included in the captured image. This arrangement makes it possible to appropriately calculate the position on the display screen that is pointed by the operating device, independently of the distance between the operating device and the display screen of the liquid crystal display apparatus.
    • 至少两个红外发光区域显示在液晶显示装置的显示屏内。 红外发光区域是用于发射具有红外区域的波长的光的区域。 然后,由操作装置沿着操作装置指向的位置的方向拍摄图像。 基于捕获图像中包含的红外发光区域的位置来计算由操作装置指示的显示画面上的位置。 这种布置使得可以独立于液晶显示装置的操作装置和显示屏幕之间的距离,适当地计算由操作装置指向的显示屏上的位置。