公开(公告)号：US07764412B2

公开(公告)日：2010-07-27

申请号：US10589661

申请日：2004-06-28

申请人： Jun Someya ,  Yoshiaki Okuno ,  Satoshi Yamanaka ,  Toru Shiraki ,  Hironobu Arimoto

发明人： Jun Someya ,  Yoshiaki Okuno ,  Satoshi Yamanaka ,  Toru Shiraki ,  Hironobu Arimoto

IPC分类号： H04N1/46

CPC分类号： H04N9/045 ,  H04N1/193 ,  H04N1/1934 ,  H04N1/401 ,  H04N5/262

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。

公开(公告)号：US20070285683A1

公开(公告)日：2007-12-13

申请号：US10589661

申请日：2004-06-28

申请人： Jun Someya ,  Yoshiaki Okuno ,  Satoshi Yamanaka ,  Toru Shiraki ,  Hironobu Arimoto

发明人： Jun Someya ,  Yoshiaki Okuno ,  Satoshi Yamanaka ,  Toru Shiraki ,  Hironobu Arimoto

IPC分类号： G06K1/00

CPC分类号： H04N9/045 ,  H04N1/193 ,  H04N1/1934 ,  H04N1/401 ,  H04N5/262

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。

公开(公告)号：US20090128566A1

公开(公告)日：2009-05-21

申请号：US11921890

申请日：2006-04-19

申请人： Yoshiaki Okuno ,  Jun Someya ,  Satoshi Yamanaka

发明人： Yoshiaki Okuno ,  Jun Someya ,  Satoshi Yamanaka

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。

公开(公告)号：US20060197993A1

公开(公告)日：2006-09-07

申请号：US11363329

申请日：2006-02-28

申请人： Satoshi Yamanaka ,  Yoshiaki Okuno ,  Jun Someya

发明人： Satoshi Yamanaka ,  Yoshiaki Okuno ,  Jun Someya

IPC分类号： H04N1/409

CPC分类号： H04N1/407

摘要： A tone step detector detects whether the tone of n-bit input image data varies gradually, and generates a tone processing control signal indicating that a tone step is contained. A bit shifter bit-shifts the n-bit input image data to the left by α bits, to generate (n+α)-bit image data. A tone processor smoothes the image data of the (n+α)-bit image data generated by the bit shifter, in the region where the tone processing control signal indicates that a tone step is contained, to generate (n+α)-bit image data having been smoothed in the above-mentioned region. Because of the selective smoothing, degradation in the image quality due to quantization is reduced even when an analog image signal whose tone varies gradually is input.

摘要翻译： 音阶步骤检测器检测n位输入图像数据的色调是否逐渐变化，并且产生指示音调步骤被包含的音调处理控制信号。 位移器将n位输入图像数据向左移位由α位，以生成（n +α）位图像数据。 色调处理器​​在音调处理控制信号指示包含音调步骤的区域中平滑由位移器产生的（n + alpha）位图像数据的图像数据，以生成（n +α）位 在上述区域中已经平滑的图像数据。 由于选择性平滑，即使输入音调逐渐变化的模拟图像信号，也降低了由于量化造成的图像质量的劣化。

公开(公告)号：US08106908B2

公开(公告)日：2012-01-31

申请号：US11921890

申请日：2006-04-19

申请人： Yoshiaki Okuno ,  Jun Someya ,  Satoshi Yamanaka

发明人： Yoshiaki Okuno ,  Jun Someya ,  Satoshi Yamanaka

IPC分类号： G06T11/20

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。

公开(公告)号：US07643180B2

公开(公告)日：2010-01-05

申请号：US11363329

申请日：2006-02-28

申请人： Satoshi Yamanaka ,  Yoshiaki Okuno ,  Jun Someya

发明人： Satoshi Yamanaka ,  Yoshiaki Okuno ,  Jun Someya

IPC分类号： H04N1/409

CPC分类号： H04N1/407

摘要： A tone step detector detects whether the tone of n-bit input image data varies gradually, and generates a tone processing control signal indicating that a tone step is contained. A bit shifter bit-shifts the n-bit input image data to the left by α bits, to generate (n+α)-bit image data. A tone processor smoothes the image data of the (n+α)-bit image data generated by the bit shifter, in the region where the tone processing control signal indicates that a tone step is contained, to generate (n+α)-bit image data having been smoothed in the above-mentioned region. Because of the selective smoothing, degradation in the image quality due to quantization is reduced even when an analog image signal whose tone varies gradually is input.

摘要翻译： 音阶步骤检测器检测n位输入图像数据的色调是否逐渐变化，并且产生指示音调步骤被包含的音调处理控制信号。 位移器将n位输入图像数据向左移位由α位，以生成（n +α）位图像数据。 色调处理器​​在音调处理控制信号指示包含音调步骤的区域中平滑由位移器产生的（n + alpha）位图像数据的图像数据，以生成（n +α）位 在上述区域中已经平滑的图像数据。 由于选择性平滑，即使输入音调逐渐变化的模拟图像信号，也降低了由于量化造成的图像质量的劣化。

公开(公告)号：US20060050990A1

公开(公告)日：2006-03-09

申请号：US10541611

申请日：2004-06-30

申请人： Satoshi Yamanaka ,  Yoshiaki Okuno ,  Jun Someya

发明人： Satoshi Yamanaka ,  Yoshiaki Okuno ,  Jun Someya

IPC分类号： G06K9/32

CPC分类号： G06T3/0056 ,  G06T5/20 ,  H04N1/401 ,  H04N2209/046

摘要： A pixel interpolation circuit according to this invention includes a plurality of interpolation circuits each calculating interpolation candidate data of a interpolation pixel and test interpolation data of a plurality of pixels neighboring the interpolation pixel using different interpolation methods, a determining circuit for selecting one of the interpolation circuits based on a difference between the test interpolation data and actual pixel data, and an output circuit for outputting the interpolation candidate data calculated by the selected interpolation circuit as the interpolation pixel data.

摘要翻译： 根据本发明的像素插值电路包括多个内插电路，每个内插电路使用不同的插值方法来计算内插像素的内插候选数据和与内插像素相邻的多个像素的测试插值数据;确定电路，用于选择插值 基于测试内插数据和实际像素数据之间的差异的电路，以及用于输出由所选择的内插电路计算的内插候选数据作为内插像素数据的输出电路。

公开(公告)号：US07738738B2

公开(公告)日：2010-06-15

申请号：US10578686

申请日：2004-06-18

申请人： Satoshi Yamanaka ,  Yoshiaki Okuno ,  Jun Someya

发明人： Satoshi Yamanaka ,  Yoshiaki Okuno ,  Jun Someya

IPC分类号： G06K9/32

CPC分类号： G06T3/4007 ,  G06T5/005 ,  G06T5/20 ,  H04N1/401

摘要： Missing-pixel interpolation data are obtained such that the mean value of a plurality of pixels constituting a group of pixels including a missing pixel is equal to the mean value of a plurality of pixels constituting a group of pixels not including the missing pixel. For example, missing-pixel interpolation data are obtained by (1) obtaining a sum (SL) of the values of pixels other than the missing pixel (L) in the k pixels constituting the group (LC) of pixels including the missing pixel, (2) obtaining a sum (SA) of the values of k pixels constituting a group (NA) of pixels not including the missing pixel, and (3) taking the difference between these sums. This makes it possible to reduce interpolation error when a highly periodic image with missing pixels is interpolated.

摘要翻译： 获得缺失像素插值数据，使得构成包括丢失像素的像素组的多个像素的平均值等于构成不包括丢失像素的像素组的多个像素的平均值。 例如，通过（1）获得构成包含丢失像素的像素的组（LC）的k个像素中的缺失像素（L）以外的像素值的和（SL），获得缺失像素插值数据， （2）获得构成不包括缺失像素的像素的组（NA）的k个像素的值的和（SA），以及（3）取这些和之间的差。 这使得可以在内插缺少像素的高周期性图像时减少内插误差。

公开(公告)号：US20070188525A1

公开(公告)日：2007-08-16

申请号：US11704249

申请日：2007-02-09

申请人： Satoshi Yamanaka ,  Yoshiaki Okuno ,  Shuichi Kagawa ,  Jun Someya

发明人： Satoshi Yamanaka ,  Yoshiaki Okuno ,  Shuichi Kagawa ,  Jun Someya

IPC分类号： G09G5/10

CPC分类号： H04N5/20 ,  G09G3/2059 ,  G09G2320/0276 ,  G09G2340/0428 ,  H04N5/208

摘要： An image processing method extends n-bit input image data by α bits to generate (n+α)-bit source data, where n and α are positive integers, and smoothes the source data. The maximum difference between gray levels of the unsmoothed source data in an area localized around each pixel is calculated, and a mixing ratio is determined from the maximum difference. The smoothed and unsmoothed source data are mixed according to the mixing ratio to generate output image data. In areas with gradually changing gray levels, the output image data are weighted toward the smoothed source data, mitigating image degradation due to quantization and gamma correction. In areas with sharp edges, the output image data are weighted toward the unsmoothed source data, preventing a loss of edge sharpness.

摘要翻译： 图像处理方法通过α比特扩展n位输入图像数据，生成（n +α）位源数据，其中n和α是正整数，并平滑源数据。 计算在每个像素周围定位的区域中未平滑源数据的灰度级之间的最大差异，并根据最大差异确定混合比。 平滑和未平滑的源数据根据混合比混合以产生输出图像数据。 在灰度逐渐变化的区域中，输出图像数据被加权到平滑的源数据，从而减轻由于量化和伽马校正引起的图像劣化。 在具有尖锐边缘的区域中，输出图像数据朝向未平滑的源数据加权，防止边缘锐度的损失。

公开(公告)号：US20070092156A1

公开(公告)日：2007-04-26

申请号：US10578686

申请日：2004-06-18

申请人： Satoshi Yamanaka ,  Yoshiaki Okuno ,  Jun Someya

发明人： Satoshi Yamanaka ,  Yoshiaki Okuno ,  Jun Someya

IPC分类号： G06K9/40 ,  H04N9/64 ,  G06K9/36

CPC分类号： G06T3/4007 ,  G06T5/005 ,  G06T5/20 ,  H04N1/401

摘要： Missing-pixel interpolation data are obtained such that the mean value of a plurality of pixels constituting a group of pixels including a missing pixel is equal to the mean value of a plurality of pixels constituting a group of pixels not including the missing pixel. For example, missing-pixel interpolation data are obtained by (1) obtaining a sum (SL) of the values of pixels other than the missing pixel (L) in the k pixels constituting the group (LC) of pixels including the missing pixel, (2) obtaining a sum (SA) of the values of k pixels constituting a group (NA) of pixels not including the missing pixel, and (3) taking the difference between these sums. This makes it possible to reduce interpolation error when a highly periodic image with missing pixels is interpolated.

摘要翻译： 获得缺失像素插值数据，使得构成包括丢失像素的像素组的多个像素的平均值等于构成不包括丢失像素的像素组的多个像素的平均值。 例如，通过（1）获得构成包含丢失像素的像素的组（LC）的k个像素中的缺失像素（L）以外的像素值的和（SL），获得缺失像素插值数据， （2）获得构成不包括缺失像素的像素的组（NA）的k个像素的值的和（SA），以及（3）取这些和之间的差。 这使得可以在内插缺少像素的高周期性图像时减少内插误差。