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    • 2. 发明授权
    • Line direction deciding device, image inclination detecting device and image inclination correcting device
    • 线方向决定装置,图像倾斜检测装置和图像倾斜修正装置
    • US06532303B2
    • 2003-03-11
    • US09124087
    • 1998-07-29
    • Hisashi Saiga
    • Hisashi Saiga
    • G06K948
    • G06K9/3283G06K9/3208G06K2209/01G06K2209/011
    • A line-direction deciding device that can decide the direction of lines in an image having a complicated layout of characters as well as line directions other than vertical and horizontal line directions. The present invention provides a line-direction deciding device that extracts character elements (image components) from an image, examines in which direction the character elements are most densely distributed and decides by majority the direction of lines of characters within a processable area as well as an image inclination correcting device that corrects an image for inclination according to a processing result made by the line-direction deciding device provided with image-inclination detecting means.
    • 能够决定具有复杂的字符布局以及除了垂直和水平线方向之外的线方向的图像中的线的方向的线方向决定装置。 本发明提供一种从图像中提取字符元素(图像分量)的行向判定装置,检查字符元素在哪个方向上最密集地分布,并且通过多个方式决定可处理区域内的字符行的方向,以及 图像倾斜校正装置,其根据由具有图像倾斜检测装置的行方向判定装置进行的处理结果来校正图像的倾斜。
    • 7. 发明申请
    • IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM
    • 图像处理装置,图像处理方法和存储介质
    • US20080240584A1
    • 2008-10-02
    • US12057210
    • 2008-03-27
    • Hisashi SAIGAYoichiro Yahata
    • Hisashi SAIGAYoichiro Yahata
    • G06K9/36G06K9/54
    • H04N19/34H04N19/184H04N19/46H04N19/59
    • The image processing device of the present invention includes: an image acquiring section (2) acquiring image data; an image data generating section (32) generating attribute data including each attribute value indicative of an attribute to which each of a plurality of pixels constituting an image indicated by the image data acquired by the image acquiring section (2) belongs among predetermined attributes; and image data reducing section (34) reducing the attribute data by converting, to one attribute value, at least two attribute values included in the attribute data generated by the attribute data generating section, according to a priority given to the each attribute value. Therefore, it becomes possible to realize an image processing device that can reduce the attribute data while keeping important information included in the attribute data, and further improve encoding efficiency of the attribute data.
    • 本发明的图像处理装置包括:图像获取部(2),获取图像数据; 产生属性数据的图像数据生成部分,生成属性数据,该属性数据包括指示构成由图像获取部分(2)获取的图像数据指示的图像的多个像素中的每个像素属于预定属性的属性的属性值; 和图像数据减少部分,通过根据对每个属性值的优先级将属性数据生成部生成的属性数据中包含的至少两个属性值转换为一个属性值来减少属性数据。 因此,可以实现能够减少属性数据同时保持包括在属性数据中的重要信息的图像处理装置,并且进一步提高属性数据的编码效率。
    • 9. 发明授权
    • Image encoding device
    • 图像编码装置
    • US07830966B2
    • 2010-11-09
    • US11236010
    • 2005-09-26
    • Kensaku KagechiHisashi SaigaKeisuke Iwasaki
    • Kensaku KagechiHisashi SaigaKeisuke Iwasaki
    • H04N7/12H04N11/02H04N11/04H04B1/66
    • H04N19/98H04N19/12H04N19/124H04N19/14H04N19/147H04N19/15H04N19/152H04N19/17H04N19/176H04N19/182H04N19/192H04N19/60H04N19/70H04N19/90
    • The object of the present invention is to provide an image encoding device and decoding device which allows the maximum compression rate to be achieved with a visually uniform level of picture quality.The present invention has a characteristic pixel extractor 0309 which encodes input images by small region unit in accordance with an irreversible compression method, decodes the encoded data which is created, and utilizes the input image and decoded image obtained after decoding to extract characteristic pixels, a characteristic distortion calculator 0311 which utilizes characteristic pixels to calculate characteristic distortion of the decoded image in relation to the input image, and an encoding parameter controller 0312 which controls parameter values determining the degree of data compression in line with the extent of characteristic distortion. The regions of picture quality of a visually uniform level thus obtained are all compressed using an image compression method with a high compression efficiency, thus allowing the maximum compression rate to be achieved.
    • 本发明的目的是提供一种图像编码装置和解码装置,其允许以视觉上均匀的图像质量水平实现最大压缩率。 本发明具有一个特征像素提取器0309,它根据不可逆的压缩方法通过小区域单元编码输入图像,对所产生的编码数据进行解码,并利用输入图像和解码后获得的解码图像来提取特征像素, 使用特征像素来计算与输入图像相关的解码图像的特征失真的特征失真计算器0311,以及根据特征失真程度来控制确定数据压缩程度的参数值的编码参数控制器0312。 由此获得的视觉均匀水平的图像质量区域都使用具有高压缩效率的图像压缩方法全部压缩,从而允许实现最大压缩率。