公开(公告)号：EP1720337B1

公开(公告)日：2017-04-05

申请号：EP04746578.6

申请日：2004-06-28

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： SOMEYA, Jun, c/o Mitsubishi Denki K.K. ,  OKUNO, Yoshiaki, c/o Mitsubishi Denki K.K. ,  YAMANAKA, Satoshi, c/o Mitsubishi Denki K.K. ,  SHIRAKI, Toru, c/o Mitsubishi Denki K.K. ,  ARIMOTO, Hironobu, c/o Mitsubishi Denki K.K.

IPC分类号： H04N1/04 ,  H04N1/387 ,  H04N1/40 ,  G06T1/00

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.

公开(公告)号：EP1720337A1

公开(公告)日：2006-11-08

申请号：EP04746578.6

申请日：2004-06-28

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： SOMEYA, Jun, c/o Mitsubishi Denki K.K. ,  OKUNO, Yoshiaki, c/o Mitsubishi Denki K.K. ,  YAMANAKA, Satoshi, c/o Mitsubishi Denki K.K. ,  SHIRAKI, Toru, c/o Mitsubishi Denki K.K. ,  ARIMOTO, Hironobu, c/o Mitsubishi Denki K.K.

IPC分类号： H04N1/04 ,  H04N1/387 ,  H04N1/40 ,  G06T1/00

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）），使得包括丢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 以及将丢失像素的左右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，并且可以以高精度执行插值。