公开(公告)号：EP2423870A1

公开(公告)日：2012-02-29

申请号：EP11155926.6

申请日：2011-02-25

申请人： Hitachi Information & Communication

发明人： Minakawa, Tsuyoshi ,  Hamada, Tatsuzo

IPC分类号： G06T3/00 ,  G06T5/00

CPC分类号： G06T3/0018 ,  G06T5/006

摘要： An image correcting device includes an image input section, an image storage section, a correction table storage section, a geometry correcting section for geometrically correcting an input image stored in the image storage section, based on a correction table, and an image output section for output of the input image corrected by the geometry correcting section, wherein the correction table is created by calculating longitudes and latitudes that correspond to respective pixel positions on an output image that becomes the corrected image; calculating corrected latitudes through correction of the latitudes, based on the longitudes and the latitudes; calculating light directions in a subject space, the light directions corresponding to the longitudes and the corrected latitudes; and calculating positions on the input image as resampling positions, the positions corresponding to the respective light directions; and associating the resampling positions with the pixel positions on the output image.

摘要翻译： 一种图像校正装置包括：图像输入部，图像存储部，校正表存储部，用于几何校正存储在图像存储部输入的图像的基础上，一个校正表中的几何校正部，以及用于图像输出部 由几何校正部，worin校正表，通过计算经度和纬度创建校正后的输入图像的输出也对应于在输出图像respectivement像素位置做成为校正图像; 计算通过纬度，基于经度和纬度的校正来校正纬度; 在受试者中的空间光计算方向时，光的方向对应于经度和纬度纠正; 以及计算作为再采样位置处的输入图像上的位置，位置对应于respectivement光方向; 和相关联的输出图像上的像素位置处的重采样的位置。

公开(公告)号：EP2444932A2

公开(公告)日：2012-04-25

申请号：EP11155938.1

申请日：2011-02-25

申请人： Hitachi Information & Communication

发明人： Minakawa, Tsuyoshi ,  Hamada, Tatsuzo

IPC分类号： G06T5/00 ,  G06T3/00

CPC分类号： G06T3/0062 ,  G06T3/0018

摘要： An image correcting device includes an image input section, image storage section, correction table storage section, geometry correcting section subjecting an input image to geometrical correction based on a correction table, and image output section outputting the input image as a corrected image. The table is created by: calculating a pair of angles (θ, 0̸ ) corresponding to each pixel position on the output image as the corrected image; calculating a light direction based on an intersection line between a plane obtained by rotating a YZ plane by angle θ about Y axis and that by rotating an XZ plane by angle 0̸ about X axis, in three dimensional Cartesian coordinate system with origin at a projection center of the input image; calculating a position on the input image corresponding to the light direction, as a resampling position; and associating the resampling position with the pixel position on the output image.

摘要翻译： 一种图像校正装置包括图像输入部分，图像存储部分，校正表存储部分，基于校正表对输入图像进行几何校正的几何校正部分以及将输入图像作为校正图像输出的图像输出部分。 通过以下方式创建该表格：计算与输出图像上的每个像素位置对应的一对角度（θ，θ）作为校正图像; 在原点位于投影中心的三维直角坐标系中，基于通过使YZ平面绕Y轴旋转角度θ而获得的平面与绕X轴旋转XZ平面成角度0°的平面之间的相交线计算光方向 的输入图像; 计算输入图像上对应于光线方向的位置作为重采样位置; 并将重采样位置与输出图像上的像素位置相关联。

公开(公告)号：EP2444932A3

公开(公告)日：2012-07-25

申请号：EP11155938.1

申请日：2011-02-25

申请人： Hitachi Information & Communication

发明人： Minakawa, Tsuyoshi ,  Hamada, Tatsuzo

IPC分类号： G06T5/00 ,  G06T3/00

CPC分类号： G06T3/0062 ,  G06T3/0018

摘要： An image correcting device includes an image input section, image storage section, correction table storage section, geometry correcting section subjecting an input image to geometrical correction based on a correction table, and image output section outputting the input image as a corrected image. The table is created by: calculating a pair of angles (θ, 0̸ ) corresponding to each pixel position on the output image as the corrected image; calculating a light direction based on an intersection line between a plane obtained by rotating a YZ plane by angle θ about Y axis and that by rotating an XZ plane by angle 0̸ about X axis, in three dimensional Cartesian coordinate system with origin at a projection center of the input image; calculating a position on the input image corresponding to the light direction, as a resampling position; and associating the resampling position with the pixel position on the output image.

公开(公告)号：EP2447910A1

公开(公告)日：2012-05-02

申请号：EP11182741.6

申请日：2011-09-26

申请人： Hitachi Information & Communication

发明人： Minakawa, Tsuyoshi ,  Hamada, Tatsuzo

IPC分类号： G06T3/00 ,  G06T5/00

CPC分类号： G06T3/0018 ,  G06T5/006

摘要： An image correction device geometrically corrects an input image, based on the correction table, which is generated by obtaining a light-direction vector in an objective space corresponding to each pixel position on a corrected image, based on a first projection center located on the rear side of a second projection center as the projection center of the input image in the objective space with respect to the direction of an optical axis corresponding to the input image, obtaining from the light-direction vector an origin-based light-direction vector indicating a direction from the second projection center in which a point corresponding to each pixel position exists in the objective space, exacting a position on the input image corresponding to the origin-based light-direction vector, and recording in the correction table the resampling position in correspondence with each pixel position in the corrected image.

摘要翻译： 一种图像校正装置几何校正为输入图像，基于所述校正表，所有这一切是通过在目标空间对应于校正图像上的各像素位置中获取的光方向矢量生成的，基于位于后侧的第一projectionCenter 第二projectionCenter作为相对于光轴对应于输入图像的方向的目标空间中的输入图像的projectionCenter的侧面，从原点基准光线方向矢量的光线方向矢量指示获取 从在其中一个点对应于每个像素点的第二projectionCenter方向存在于目标空间，严格的输入图像相对应的原点基准光线方向矢量上的位置，并且在校正表中相对应地提取位置记录 校正后的图像中的每个像素位置。