Image scanner and signal processing method
    1.
    发明授权
    Image scanner and signal processing method 有权
    图像扫描器和信号处理方法

    公开(公告)号:US07764412B2

    公开(公告)日:2010-07-27

    申请号:US10589661

    申请日:2004-06-28

    IPC分类号: H04N1/46

    摘要: Interpolation data for a missing pixel are obtained (4) after a correction (3) for variations in the characteristics of the imaging devices (8(1), 8(2)). The correction for variations in characteristics includes, for example, a black level correction (9) and a sensitivity correction (10). The interpolation includes, for example, interpolation calculations (14(1), 14(2)) such that a mean value of a plurality of pixels including the missing pixel and a mean value of a plurality of pixels not including the missing pixel become equal and an interpolation calculation (14(0)) that takes the mean of the pixels to the right and left of the missing pixel, the calculation with the least error being selected (13, 15). Thus missing pixels in highly periodic images can be properly interpolated, and interpolation can be performed with high precision even when there are variations in the sensitivity characteristics of the individual imaging devices constituting the contact image sensor.

    摘要翻译: 在对成像装置(8(1),8(2))的特性变化进行校正(3)之后获得缺失像素的插值数据(4)。 特征变化的校正包括例如黑电平校正(9)和灵敏度校正(10)。 插值包括例如内插计算(14(1),14(2)),使得包括缺失像素的多个像素的平均值和不包括丢失像素的多个像素的平均值变得相等 以及将丢失像素的右侧和左侧的像素的平均值进行插值计算(14(0)),选择最小误差的计算(13,15)。 因此,即使在构成接触图像传感器的各个成像装置的灵敏度特性存在差异的情况下,也可以适当地插入高周期性图像中的缺失像素,并且可以以高精度进行插值。

    Scanner line interpolation device
    2.
    发明授权
    Scanner line interpolation device 失效
    扫描线插补装置

    公开(公告)号:US06288745B1

    公开(公告)日:2001-09-11

    申请号:US09170123

    申请日:1998-10-13

    IPC分类号: H04N701

    摘要: There is provided a scanning line interpolation device which is capable of providing an interpolated image with increased reproducibility of vertical high-frequency components in a still picture part. Preceding-field image data is stored in a field memory, and thereafter reference pixels which are located in an interpolation pixel position and its surrounding positions and required for interpolation are extracted from the preceding-field image data stored in the field memory and current-field image data. An inter-field motion judgement portion detects whether or not there is a motion of an image between preceding and current fields based on the extracted reference pixels. If the inter-field motion judgement portion detects that there is a motion, a selection circuit selects in-field interpolation data calculated in an in-field interpolation value calculation circuit from the current-field image data among the reference pixels. If the inter-field judgement portion detects that there is no motion, the selection circuit selects the preceding-field image data located in the interpolation pixel position among the reference pixels. Then, the selection circuit outputs the selected data as interpolation pixel image data.

    摘要翻译: 提供了一种扫描线内插装置,其能够提供在静止图像部分中垂直高频分量的再现性增加的内插图像。 前场图像数据存储在场存储器中,然后从存储在场存储器和当前场中的前场图像数据中提取位于内插像素位置及其周围位置的参考像素和内插所需的参考像素 图像数据。 场间运动判断部根据所提取的参照像素,检测是否存在先前场和场之间的图像运动。 如果场间运动判断部分检测到存在运动,则选择电路从参考像素中的当前场图像数据中选择在场内插补值计算电路中计算的场内插值数据。 如果场间判断部分检测到没有运动,则选择电路选择位于参考像素中的内插像素位置中的前场图像数据。 然后,选择电路将所选择的数据作为内插像素图像数据输出。

    Image Scanner and Signal Processing Method
    3.
    发明申请
    Image Scanner and Signal Processing Method 有权
    图像扫描仪和信号处理方法

    公开(公告)号:US20070285683A1

    公开(公告)日:2007-12-13

    申请号:US10589661

    申请日:2004-06-28

    IPC分类号: G06K1/00

    摘要: Interpolation data for a missing pixel are obtained (4) after a correction (3) for variations in the characteristics of the imaging devices (8(1), 8(2)). The correction for variations in characteristics includes, for example, a black level correction (9) and a sensitivity correction (10). The interpolation includes, for example, interpolation calculations (14(1), 14(2)) such that a mean value of a plurality of pixels including the missing pixel and a mean value of a plurality of pixels not including the missing pixel become equal and an interpolation calculation (14(0)) that takes the mean of the pixels to the right and left of the missing pixel, the calculation with the least error being selected (13, 15). Thus missing pixels in highly periodic images can be properly interpolated, and interpolation can be performed with high precision even when there are variations in the sensitivity characteristics of the individual imaging devices constituting the contact image sensor.

    摘要翻译: 在对成像装置(8(1),8(2))的特性变化进行校正(3)之后获得缺失像素的插值数据(4)。 特征变化的校正包括例如黑电平校正(9)和灵敏度校正(10)。 插值包括例如内插计算(14(1),14(2)),使得包括缺失像素的多个像素的平均值和不包括丢失像素的多个像素的平均值变得相等 以及将丢失像素的右侧和左侧的像素的平均值进行插值计算(14(0)),选择最小误差的计算(13,15)。 因此,即使在构成接触图像传感器的各个成像装置的灵敏度特性存在差异的情况下,也可以适当地插入高周期性图像中的缺失像素,并且可以以高精度进行插值。

    Image generating apparatus and method, and image display apparatus and method
    4.
    发明申请
    Image generating apparatus and method, and image display apparatus and method 有权
    图像产生装置和方法以及图像显示装置和方法

    公开(公告)号:US20090128566A1

    公开(公告)日:2009-05-21

    申请号:US11921890

    申请日:2006-04-19

    IPC分类号: G06T11/00

    CPC分类号: G09G5/243

    摘要: To solve the problem that when a space with a set width is inserted after each character to regularize the spaces between characters the overall character spacing is widened, making text less easy to read, there are provided a character control code storage unit (5) for storing, for each character display position, a character control code (CTD) including a character code (CC) and character width data (CW), and a positional control unit (4) for reading the character control code (CTD) for the present character display position from the character control code storage unit (5), and controlling the occurrence interval of the present character display position according to the character width data (CW) in the character control code (5) that was read and the previous character display position.

    摘要翻译: 为了解决在每个字符之后插入具有设定宽度的空格以使字符之间的空格正规化的问题,整个字符间隔被扩大,使得文本不容易阅读,提供了一个字符控制代码存储单元(5),用于 对于每个字符显示位置存储包括字符代码(CC)和字符宽度数据(CW)的字符控制代码(CTD),以及用于读取当前的字符控制代码(CTD)的位置控制单元(4) 字符显示位置,并且根据读取的字符控制代码(5)中的字符宽度数据(CW)和先前的字符显示来控制当前字符显示位置的发生间隔 位置。

    Image processing device, image display device, image processing method, and image display method
    5.
    发明申请
    Image processing device, image display device, image processing method, and image display method 有权
    图像处理装置,图像显示装置,图像处理方法以及图像显示方法

    公开(公告)号:US20060045375A1

    公开(公告)日:2006-03-02

    申请号:US10527687

    申请日:2003-10-27

    IPC分类号: G06K9/40

    CPC分类号: G06T5/003 G06T2207/20192

    摘要: An apparatus includes an edge width detection circuit (1) which detects an edge portion of image data (DI) and outputs an edge width (W) of the detected edge portion, a ratio control amount generation circuit (2) which generates a ratio control amount (ZC) in accordance with the edge width (W), a ratio generation circuit (3) which generates a conversion ratio (Z) in accordance with the ratio control amount (ZC), and a pixel number conversion circuit (4) which performs a conversion of pixel number of the image data (DI) using the conversion ratio (Z), thereby enhancing sharpness of the edge portion in proper quantities.

    摘要翻译: 一种装置,包括检测图像数据(DI)的边缘部分并输出检测到的边缘部分的边缘宽度(W)的边缘宽度检测电路(1),产生比率控制的比率控制量产生电路(2) 根据边缘宽度(W)的量(ZC),根据比率控制量(ZC)产生转换比率(Z)的比率产生电路(3)和像素数转换电路(4),其中 使用转换比(Z)进行图像数据(DI)的像素数的转换,从而以适当的量提高边缘部分的锐度。

    Display device and image displaying method
    6.
    发明授权
    Display device and image displaying method 有权
    显示设备和图像显示方法

    公开(公告)号:US06937256B2

    公开(公告)日:2005-08-30

    申请号:US10101466

    申请日:2002-03-20

    摘要: An apparatus and method are disclosed for displaying an image having high frequency components. The image is displayed on a display device that includes a plurality of display elements arranged in both horizontal and vertical directions. The display elements represent colors, such as red, green and blue. A pixel data generator generates for each display element first pixel data corresponding to the luminance levels of red, green and blue colors in the image. A smoothing filter eliminates false colors in the image by applying weighting coefficients to the first pixel data to modify the luminance levels of the first pixel data, thereby producing second pixel data having second color element data corresponding to luminance levels of the respective colors. Each display element of the display is driven in accordance with the second color element data.

    摘要翻译: 公开了一种用于显示具有高频分量的图像的装置和方法。 图像显示在包括沿水平和垂直方向布置的多个显示元件的显示装置上。 显示元素表示颜色,如红色,绿色和蓝色。 像素数据生成器针对每个显示元件生成与图像中的红色,绿色和蓝色的亮度等级对应的第一像素数据。 平滑滤波器通过对第一像素数据应用加权系数来修正第一像素数据的亮度级别,从而产生具有与各颜色的亮度级对应的第二色素数据的第二像素数据来消除图像中的假色。 显示器的每个显示元件根据第二颜色元素数据被驱动。

    Method for driving plasma display panel
    7.
    发明授权
    Method for driving plasma display panel 失效
    驱动等离子体显示面板的方法

    公开(公告)号:US06292159B1

    公开(公告)日:2001-09-18

    申请号:US09070734

    申请日:1998-05-01

    IPC分类号: G09G328

    摘要: With a plasma display panel, an object of the present invention is to suppress luminance in black display without deteriorating picture quality and to suppress pseudo contouring of moving picture, while suppressing cost of the plasma display panel. According to a plasma display panel driving method of the present invention, a plurality of discharge sustain periods for displaying equal luminance level are successively defined in a given period in one field to reduce the amount of shift of the center of luminance, and address periods for selecting arbitrary display cells on the screen are comprised of two kinds of address periods: a write address period and an erase address period.

    摘要翻译: 利用等离子体显示面板,本发明的目的是在抑制等离子体显示面板的成本的同时,抑制黑色显示中的亮度,而不会降低图像质量并抑制运动图像的伪轮廓。 根据本发明的等离子体显示面板驱动方法,在一个场中,在给定的周期内连续地定义用于显示相等的亮度级的多个放电维持周期,以减少亮度中心的偏移量,以及用于 在屏幕上选择任意显示单元由两种地址周期组成:写入地址周期和擦除地址周期。

    Edge-directed images sharpening method
    8.
    发明授权
    Edge-directed images sharpening method 有权
    边缘图像锐化方法

    公开(公告)号:US07616838B2

    公开(公告)日:2009-11-10

    申请号:US10527687

    申请日:2003-10-27

    IPC分类号: G06K9/32

    CPC分类号: G06T5/003 G06T2207/20192

    摘要: An apparatus includes an edge width detection circuit which detects an edge portion of image data and outputs an edge width of the detected edge portion, a ratio control amount generation circuit which generates a ration control amount in accordance with the edge width, a ratio generation circuit which generates a conversion ratio in accordance with the ratio control amount, and a pixel number conversion circuit which performs a conversion of pixel number of the image data using the conversion ratio, thereby enhancing sharpness of the edge portion in proper quantities.

    摘要翻译: 一种装置,包括边缘检测电路,其检测图像数据的边缘部分并输出检测到的边缘部分的边缘宽度;比率控制量产生电路,其根据边缘宽度产生比率控制量;比率产生电路 其根据比率控制量产生转换比,以及像素数转换电路,其使用转换比执行图像数据的像素数的转换,从而以适当的量提高边缘部分的锐度。

    Image Processing Apparatus, Image Processing Method, and Image Display Apparatus
    9.
    发明申请
    Image Processing Apparatus, Image Processing Method, and Image Display Apparatus 审中-公开
    图像处理装置,图像处理方法和图像显示装置

    公开(公告)号:US20080043145A1

    公开(公告)日:2008-02-21

    申请号:US11597408

    申请日:2004-10-19

    IPC分类号: H03L7/00

    摘要: An object of the present invention is to provide an image processing apparatus and image processing method capable of obtaining better picture quality by appropriately improving the sharpness of edges of an image. In order to achieve the object, the image processing apparatus comprises a zoom ratio control means for detecting edges in image data and generating zoom ratio control values according to the widths of the detected edges; an edge width correction means for correcting the edge widths by carrying out an interpolation process on the image data according to the zoom ratio control values; an enhancement value calculation means for detecting high frequency components of the image data with the corrected edge widths, and calculating enhancement values for enhancing the edges of the image data according to the detected high frequency components; and an edge enhancement means for enhancing the edges of the image data by adding the enhancement values to the image data with the corrected edge widths.

    摘要翻译: 本发明的目的是提供一种能够通过适当提高图像边缘的锐度来获得更好的图像质量的图像处理装置和图像处理方法。 为了实现该目的,图像处理装置包括:变焦倍率控制装置,用于检测图像数据中的边缘,并根据检测到的边缘的宽度产生变焦比控制值; 边缘宽度校正装置,用于通过根据变焦比控制值对图像数据进行插值处理来校正边缘宽度; 增强值计算装置,用于检测具有校正的边缘宽度的图像数据的高频分量,以及根据检测到的高频分量计算用于增强图像数据的边缘的增强值; 以及边缘增强装置,用于通过将校正的边缘宽度的图像数据添加增强值来增强图像数据的边缘。

    Image processing method and apparatus, and image display method and apparatus, with variable interpolation spacing
    10.
    发明授权
    Image processing method and apparatus, and image display method and apparatus, with variable interpolation spacing 失效
    图像处理方法和装置,以及具有可变插值间距的图像显示方法和装置

    公开(公告)号:US07330199B2

    公开(公告)日:2008-02-12

    申请号:US10716634

    申请日:2003-11-20

    IPC分类号: G09G5/00

    摘要: An image is processed by detecting pixel-to-pixel variations in brightness level, generating high spatial frequency information related to the variations, setting interpolation points with a spacing that varies according to the high spatial frequency information, and generating new pixels by interpolation at the interpolation points. By increasing the zoom ratio in one part and reducing the zoom in another part of each edge in a continuous manner, this method can mitigate edge degradation when an image is enlarged or reduced, without introducing discontinuities or other image artifacts. It also provides a convenient way to adjust edge sharpness in an image.

    摘要翻译: 通过检测亮度级别的像素到像素变化来处理图像,产生与该变化相关的高空间频率信息,按照高空间频率信息改变间隔设置插值点,以及通过在 内插点。 通过增加一个部分的缩放倍率并以连续的方式减小每个边缘的另一部分的缩放,当不增加不连续性或其他图像伪像时,该方法可以减轻图像放大或缩小时的边缘劣化。 它还提供了一种方便的方式来调整图像中的边缘锐度。