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Patent Searching and Data


Title:
CAMERA CALIBRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/079980
Kind Code:
A1
Abstract:
A camera calibration device captures images of at least one marker by at least two cameras, and on the basis of the images captured by the at least two cameras, calibrates the installation states of the at least two cameras, the camera calibration device being provided with: an extraction unit which extracts a feature amount of the at least one marker on the basis of the images captured by the at least two cameras; a primary calibration unit which on the basis of the feature amount, calculates the respective positions of the at least two cameras in a marker coordinate system; and a secondary calibration unit which performs a coordinate transformation from the positions of the respective cameras in the marker coordinate system calculated by the primary calibration unit to the positions of the respective cameras in a vehicle coordinate system.

Inventors:
SAKANO MORIHIKO (JP)
AOKI TOSHIYUKI (JP)
OKADA TSUKASA (JP)
SATO KEIJI (JP)
Application Number:
PCT/JP2014/080530
Publication Date:
June 04, 2015
Filing Date:
November 18, 2014
Export Citation:
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Assignee:
CLARION CO LTD (JP)
International Classes:
B60R1/00; H04N5/232; G06T1/00; G06T7/60; H04N7/18
Domestic Patent References:
WO2010052772A12010-05-14
Foreign References:
JP2009288152A2009-12-10
JP2009100342A2009-05-07
JP2009104323A2009-05-14
JP2011025840A2011-02-10
Other References:
See also references of EP 3076654A4
Attorney, Agent or Firm:
NAGAI, Fuyuki et al. (JP)
Fuyuki Nagai (JP)
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