Title:
IMAGE PROCESSING DEVICE AND MARKERS
Document Type and Number:
WIPO Patent Application WO/2015/019526
Kind Code:
A1
Abstract:
Provided is an image processing device that can ensure accuracy of camera calibration even if the range in which calibration markers can be installed is restricted. An image processing device (10) comprises the following: an image acquisition unit (1) for acquiring an image in which markers for calibration are captured; an edge detection unit (2) for detecting the edges of the markers in the image; a polygon generating unit (3) for estimating a plurality of straight lines on the basis of the edges and generating a virtual polygon region that is surrounded by the plurality of straight lines, the generation being carried out in the image in a region thereof including regions other than those where markers are installed; and a camera parameter calculation unit (4) for calculating camera parameters on the basis of the characteristic amount, with respect to the image, of the virtual polygon region and the characteristic amount, with respect to real space, of the virtual polygon region.
Inventors:
ARATA KOJI
NAKAI WATARU
ARAI YUKO
NAKAI WATARU
ARAI YUKO
Application Number:
PCT/JP2014/002623
Publication Date:
February 12, 2015
Filing Date:
May 19, 2014
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04N5/225; B60R1/00; G01B11/00; G06T1/00; H04N5/232; H04N7/18
Foreign References:
| JP2006148745A | 2006-06-08 | |||
| JP2011221983A | 2011-11-04 | |||
| JP2011155687A | 2011-08-11 | |||
| JP2006349443A | 2006-12-28 | |||
| JP2011182236A | 2011-09-15 | |||
| JP2011047725A | 2011-03-10 | |||
| JP2010244326A | 2010-10-28 |
Other References:
See also references of EP 3032818A4
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
Koichi Washida (JP)
Download PDF: