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    • 1. 发明授权
    • Pixel density conversion and processing
    • 像素密度转换和处理
    • US5289293A
    • 1994-02-22
    • US492490
    • 1990-03-12
    • Masami KatoTakao KatoYasunori Hashimoto
    • Masami KatoTakao KatoYasunori Hashimoto
    • H04N1/40H04N1/405G06K9/00
    • H04N1/40075H04N1/40062H04N1/40068H04N1/4052
    • In a pixel density converting apparatus according to the present invention, a pixel density conversion element for converting a pixel density by a factor of an arbitrary value, such as an element of the projection method or the linear interpolation method, a pixel density conversion element for increasing or decreasing a pixel density by a factor of an integer, such as an element of the majority or logical OR method, and a binarization element for conducting binarization while correcting quantizing errors, such as an element of the error diffusion method or the average error minimizing method, are combined with each other with the advantages and disadvantages of the respective elements taken into consideration, so as to achieve excellent conversion whether or not the image on which pixel density conversion is conducted or an image area is a pseudo half-tone processed image. In consequence, excellent pixel density conversion is achieved on a binary image in which a pseudo half-tone processed image and characters or line drawings are present in a mixed state.
    • 在根据本发明的像素密度转换装置中,像素密度转换元件用于将诸如投影方法的元素或线性内插法的任意值的像素密度的像素密度转换成像素密度转换元件, 增加或减少像素密度乘以整数因子,例如大多数或逻辑OR方法的元素,以及用于在校正量化误差的同时进行二值化的二值化元素,例如误差扩散方法的元素或平均误差 最小化方法相互结合,考虑到各个元件的优点和缺点,以便无论进行像素密度转换的图像还是图像区域都是伪半色调处理,实现优异的转换 图片。 因此,在混合状态下存在伪半色调处理的图像和字符或线图的二进制图像上实现了优异的像素密度转换。
    • 2. 发明授权
    • Pixel density converting apparatus
    • 像素密度转换装置
    • US5351137A
    • 1994-09-27
    • US159206
    • 1993-11-30
    • Masami KatoTakao KatoYasunori Hashimoto
    • Masami KatoTakao KatoYasunori Hashimoto
    • H04N1/40H04N1/405G06K9/00
    • H04N1/40075H04N1/40062H04N1/40068H04N1/4052
    • In a pixel density converting apparatus according to the present invention, a pixel density conversion element for converting a pixel density by a factor of an arbitrary value, such as an element of the projection method or the linear interpolation method, a pixel density conversion element for increasing or decreasing a pixel density by a factor of an integer, such as an element of the majority or logical OR method, and a binarization element for conducting binarization while correcting quantizing errors, such as an element of the error diffusion method or the average error minimizing method, are combined with each other with the advantages and disadvantages of the respective elements taken into consideration, so as to achieve excellent conversion whether or not the image on which pixel density conversion is conducted or an image area is a pseudo half-tone processed image. In consequence, excellent pixel density conversion is achieved on a binary image in which a pseudo half-tone processed image and characters or line drawings are present in a mixed state.
    • 在根据本发明的像素密度转换装置中,像素密度转换元件用于将诸如投影方法的元素或线性内插法的任意值的像素密度的像素密度转换成像素密度转换元件, 增加或减少像素密度乘以整数因子,例如大多数或逻辑OR方法的元素,以及用于在校正量化误差的同时进行二值化的二值化元素,例如误差扩散方法的元素或平均误差 最小化方法相互结合,考虑到各个元件的优点和缺点,以便无论进行像素密度转换的图像还是图像区域都是伪半色调处理,实现优异的转换 图片。 因此,在混合状态下存在伪半色调处理的图像和字符或线图的二进制图像上实现了优异的像素密度转换。
    • 9. 发明申请
    • IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
    • 图像处理装置和图像处理方法
    • US20110150341A1
    • 2011-06-23
    • US12966725
    • 2010-12-13
    • Takahisa YamamotoMasami KatoYoshinori Ito
    • Takahisa YamamotoMasami KatoYoshinori Ito
    • G06K9/46
    • G06K9/4604G06K2009/4666
    • An image processing apparatus includes a comparison unit that selects a pixel of interest in a processing image, and compare magnitudes of luminance value of the pixel of interest and luminance value of each of a plurality of neighboring pixels having a predetermined positional relationship with the pixel of interest; a calculation unit that calculates a feature amount of the pixel of interest based on the predetermined positional relationship between the pixel of interest and each of the plurality of neighboring pixels and a comparison result obtained by the comparison unit. For two neighboring pixels at positions which are point symmetrical with respect to the pixel of interest, the comparison unit sets that only one of the two neighboring pixels has the predetermined positional relationship.
    • 一种图像处理装置,包括:比较单元,其选择处理图像中的感兴趣像素,并将感兴趣像素的亮度值的大小与具有预定位置关系的多个相邻像素的亮度值与 利益; 计算单元,其基于所述关注像素和所述多个相邻像素中的每一个之间的预定位置关系以及由所述比较单元获得的比较结果来计算所述感兴趣像素的特征量。 对于相对于感兴趣像素点对称的位置处的两个相邻像素,比较单元设置两个相邻像素中只有一个具有预定的位置关系。
    • 10. 发明申请
    • PATTERN PROCESSING APPARATUS AND METHOD, AND PROGRAM
    • 图案处理装置及方法及程序
    • US20110081089A1
    • 2011-04-07
    • US12963568
    • 2010-12-08
    • Katsuhiko MoriMasami KatoYoshinori ItoTakahisa Yamamoto
    • Katsuhiko MoriMasami KatoYoshinori ItoTakahisa Yamamoto
    • G06K9/68
    • G06K9/00281
    • Even when a local area is varied, degradation in recognition accuracy and detection accuracy is suppressed. To that end, a pattern processing apparatus includes a reference local area setting portion 1802 for setting a reference local area based on the detection result of a feature point by a face organ feature point detecting portion 101, a varied local area generating portion 1803 for generating a plurality of varied local area patterns by referring to an image area near the reference local area, a similarity calculating portion 106 for calculating similarities in the reference local areas and in the varied local area patterns between the input pattern and the registered pattern, a representative similarity calculating portion 107 for calculating representative similarity from among the similarities, and a classifying portion 109 for determining a class to which the input pattern belongs.
    • 即使局部区域变化,也能够抑制识别精度和检测精度的劣化。 为此,图案处理装置包括:基准局部区域设定部1802,用于基于面部特征点检测部101的特征点的检测结果来设定基准局部区域;变化的局部区域生成部1803, 通过参考参考局部区域附近的图像区域的多个变化的局部区域图案,计算参考局部区域和输入图案与登记图案之间的变化的局部区域图案中的相似度的相似度计算部分106, 相似度计算部分107,用于从相似度中计算代表性相似度;以及分类部分109,用于确定输入模式所属的类别。