公开(公告)号：EP3086551A3

公开(公告)日：2017-01-18

申请号：EP16161601.6

申请日：2016-03-22

申请人： Ricoh Company, Ltd.

发明人： ISHIKAWA, Masaaki ,  UCHIYAMA, Yukinaka

IPC分类号： H04N9/31

CPC分类号： H04N9/3185 ,  H04N3/223 ,  H04N9/3147

摘要： A projection system includes a plurality of projection units configured to project an image as a whole on a projected area; an output unit configured to output images for calibration to projection units that are in charge of areas of corners of the projected area among the plurality of projection units, the images for calibration including positioning markers that are indications for positioning to the corners of the projected area; a detection unit configured to detect, based on one or more captured images for calibration that are acquired by capturing the projected area and the images for calibration including the positioning markers being projected, reference points that characterize the projected area; and a correction coefficient calculation unit configured to, based on the reference points, define a projection target area relative to the projected area and to calculate correction coefficients that correspond to the plurality of projection units.

摘要翻译： 投影系统包括多个投影单元，其被配置为将图像整体投影在投影区域上; 输出单元，被配置为将用于校准的图像输出到多个投影单元中的投影区域的角落的区域的投影单元，用于校准的图像包括作为用于定位到投影区域的角的指示的定位标记 ; 检测单元，被配置为基于通过捕获投影区域获取的用于校准的一个或多个捕获图像和包括正在投影的定位标记的用于校准的图像来检测表征投影面积的参考点; 以及校正系数计算单元，被配置为基于所述参考点来定义相对于所述投影区域的投影目标区域，并且计算与所述多个投影单元相对应的校正系数。

公开(公告)号：EP3404648A1

公开(公告)日：2018-11-21

申请号：EP16885102.0

申请日：2016-12-19

申请人： Ricoh Company, Ltd.

发明人： ISHIKAWA, Masaaki ,  UCHIYAMA, Yukinaka

IPC分类号： G09G5/00 ,  G03B21/00 ,  H04N5/74

CPC分类号： H04N9/3147 ,  G03B21/00 ,  G03B21/14 ,  G03B21/60 ,  G09G5/00 ,  H04N5/74 ,  H04N9/3185 ,  H04N9/3188 ,  H04N9/3194

摘要： A projection system (100) for projecting an image onto a projection body having a curve in one direction by projection units (150) includes a grid point extraction unit (132) to extract a set of grid points indicating distortion of a projected image from captured calibration images; a grid point converting unit (134) to convert each set of grid points of a target projection unit (150) commonly extracted from captured calibration images having a calibration pattern projected on the projection body in different imaging ranges in association with the one direction onto a common coordinate system; a grid point combining unit (136) to combine the converted sets of grid points on the common coordinate system in accordance with position; and a correction coefficient calculating unit (140) to calculate a correction coefficient based on the combined sets of grid points.

公开(公告)号：EP3086551A2

公开(公告)日：2016-10-26

申请号：EP16161601.6

申请日：2016-03-22

申请人： Ricoh Company, Ltd.

发明人： ISHIKAWA, Masaaki ,  UCHIYAMA, Yukinaka

IPC分类号： H04N9/31

CPC分类号： H04N9/3185 ,  H04N3/223 ,  H04N9/3147

摘要： A projection system includes a plurality of projection units configured to project an image as a whole on a projected area; an output unit configured to output images for calibration to projection units that are in charge of areas of corners of the projected area among the plurality of projection units, the images for calibration including positioning markers that are indications for positioning to the corners of the projected area; a detection unit configured to detect, based on one or more captured images for calibration that are acquired by capturing the projected area and the images for calibration including the positioning markers being projected, reference points that characterize the projected area; and a correction coefficient calculation unit configured to, based on the reference points, define a projection target area relative to the projected area and to calculate correction coefficients that correspond to the plurality of projection units.