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    • 3. 发明授权
    • Outline font compression method
    • 轮廓字体压缩法
    • US07676104B2
    • 2010-03-09
    • US11275609
    • 2006-01-19
    • Kohei TerazonoYoshiyuki OkadaSatoshi IwataMasashi Takechi
    • Kohei TerazonoYoshiyuki OkadaSatoshi IwataMasashi Takechi
    • G06K9/48
    • G06T9/20G06K9/48G06K2009/484
    • A Bezier curve constituting outline font data represents a curve by four coordinate values of a start point, an end point, and two control points. The curve is represented by two coordinates of the start point and the end point in collinear approximation, and by three coordinates of the start point, an intersecting point of two lines, and the end point in bi-linear approximation. In curve pattern approximation, when 32 curve patterns are prepared, the curve is represented by 5-bit data of two coordinates of the start point and the end point, and a pattern number. By effectively employing these three kinds of processes, it is possible to represent a Bezier curve constituting the outline font data with a reduced data volume.
    • 构成轮廓字体数据的贝塞尔曲线表示起始点,终点和两个控制点的四个坐标值的曲线。 该曲线由共线近似的起始点和终点的两个坐标,起始点的三个坐标,两条线的相交点和双线性近似的终点来表示。 在曲线图形近似中,当准备32个曲线图形时,该曲线由起始点和终点两个坐标的5位数据以及模式数字表示。 通过有效地应用这三种处理,可以以缩减的数据量来表示构成轮廓字体数据的贝塞尔曲线。
    • 7. 发明申请
    • OUTLINE FONT BRIGHTNESS VALUE CORRECTION SYSTEM, METHOD AND PROGRAM
    • 外观亮度值校正系统,方法和程序
    • US20080088640A1
    • 2008-04-17
    • US11847892
    • 2007-08-30
    • Kohei TERAZONOSatoshi IwataMasashi Takechi
    • Kohei TERAZONOSatoshi IwataMasashi Takechi
    • G09G5/02
    • G09G5/28G09G3/20
    • Having an outline font data readout unit read a correction subject pixel and surrounding pixels thereof, referring to the already stored pre-correction and post-correction brightness value pattern data that are related to the read correction subject pixel and surrounding pixels, deriving a post-correction brightness value pattern uniquely from among candidates for a post-correction brightness value pattern of an appropriate value as post-correction brightness value, determining the optimal post-correction brightness value from the uniquely derived post-correction brightness value pattern and outputting correction data based on the determined optimal post-correction brightness value, thereby changing a brightness value of a pixel within a character image giving a look of unnaturalness automatically to a brightness value not giving a look thereof.
    • 参考已经存储的与读取的校正对象像素和周围像素相关的预校正和校正后亮度值图案数据,使轮廓字体数据读出单元读取校正对象像素及其周围像素, 校正亮度值图案,从适当值的校正后亮度值图案的候补中唯一地作为校正后亮度值,从唯一导出的校正后亮度值图案确定最佳校正后亮度值并输出校正数据 在确定的最佳校正后亮度值上,从而将不自然外观的字符图像内的像素的亮度值自动改变为不给出其外观的亮度值。
    • 8. 发明申请
    • OUTLINE FONT COMPRESSION METHOD AND OUTLINE FONT DECOMPRESSION METHOD
    • 外部逼真方法和外部分解方法
    • US20070216690A1
    • 2007-09-20
    • US11680314
    • 2007-02-28
    • Kohei TerazonoYoshiyuki OkadaMasashi Takechi
    • Kohei TerazonoYoshiyuki OkadaMasashi Takechi
    • G06T11/00
    • G06T9/005G06T11/203G09G5/24
    • A difference of coordinate values stored adjacent to each other is compressed by means of a statistical coding system when reading out outline font data storing coordinate values necessary for drawing a contour of a character in order of drawing the contour in a clockwise or counterclockwise direction and also a category of a line connecting a pair of coordinates simultaneously, followed by compressing the coordinate values of the outline font data. A value of a result of subtracting “A−1” from a difference of coordinate values is determined to be a difference value of coordinates if the difference of coordinate value is equal to or greater than a certain value A, and a code expressing the difference value of “0” is added in front of the codes of difference values that are smaller than the value A in the case of a category of line connecting adjacent coordinates to each other being a straight line.
    • 当按照顺时针或逆时针方向绘制轮廓时,通过统计编码系统压缩存储用于绘制字符轮廓所必需的坐标值的轮廓字体数据,并且还可以通过统计编码系统来压缩彼此相邻的坐标值的差异 同时连接一对坐标的线的类别,然后压缩轮廓字体数据的坐标值。 如果坐标值的差等于或大于某一值A,则从坐标值的差减去“A-1”的结果的值被确定为坐标的差值,表示差值的代码 在将邻接坐标相互连接的线类别为直线的情况下,将值“0”添加到小于值A的差值代码之前。
    • 9. 发明授权
    • Outline font brightness value correction system, method and program
    • 轮廓字体亮度值校正系统,方法和程序
    • US07961191B2
    • 2011-06-14
    • US11847892
    • 2007-08-30
    • Kohei TerazonoSatoshi IwataMasashi Takechi
    • Kohei TerazonoSatoshi IwataMasashi Takechi
    • G06T11/00G09G5/24
    • G09G5/28G09G3/20
    • Having an outline font data readout unit read a correction subject pixel and surrounding pixels thereof, referring to the already stored pre-correction and post-correction brightness value pattern data that are related to the read correction subject pixel and surrounding pixels, deriving a post-correction brightness value pattern uniquely from among candidates for a post-correction brightness value pattern of an appropriate value as post-correction brightness value, determining the optimal post-correction brightness value from the uniquely derived post-correction brightness value pattern and outputting correction data based on the determined optimal post-correction brightness value, thereby changing a brightness value of a pixel within a character image giving a look of unnaturalness automatically to a brightness value not giving a look thereof.
    • 参考已经存储的与读取的校正对象像素和周围像素相关的预校正和校正后亮度值图案数据,使轮廓字体数据读出单元读取校正对象像素及其周围像素, 校正亮度值图案,从适当值的校正后亮度值图案的候补中唯一地作为校正后亮度值,从唯一导出的校正后亮度值图案确定最佳校正后亮度值并输出校正数据 在确定的最佳校正后亮度值上,从而将不自然外观的字符图像内的像素的亮度值自动改变为不给出其外观的亮度值。
    • 10. 发明授权
    • Outline font compression method and outline font decompression method
    • 轮廓字体压缩方法和轮廓字体解压法
    • US08866820B2
    • 2014-10-21
    • US11680314
    • 2007-02-28
    • Kohei TerazonoYoshiyuki OkadaMasashi Takechi
    • Kohei TerazonoYoshiyuki OkadaMasashi Takechi
    • G06T11/00G09G5/24G06T9/00G06T11/20
    • G06T9/005G06T11/203G09G5/24
    • A difference of coordinate values stored adjacent to each other is compressed by means of a statistical coding system when reading out outline font data storing coordinate values necessary for drawing a contour of a character in order of drawing the contour in a clockwise or counterclockwise direction and also a category of a line connecting a pair of coordinates simultaneously, followed by compressing the coordinate values of the outline font data. A value of a result of subtracting “A−1” from a difference of coordinate values is determined to be a difference value of coordinates if the difference of coordinate value is equal to or greater than a certain value A, and a code expressing the difference value of “0” is added in front of the codes of difference values that are smaller than the value A in the case of a category of line connecting adjacent coordinates to each other being a straight line.
    • 当按照顺时针或逆时针方向绘制轮廓时,通过统计编码系统压缩存储用于绘制字符轮廓所必需的坐标值的轮廓字体数据,并且还可以通过统计编码系统来压缩彼此相邻的坐标值的差异 同时连接一对坐标的线的类别,然后压缩轮廓字体数据的坐标值。 如果坐标值的差等于或大于某一值A,则从坐标值的差减去“A-1”的结果的值被确定为坐标的差值,表示差值的代码 在将邻接坐标相互连接的线类别为直线的情况下,将值“0”添加到小于值A的差值代码之前。