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Title:
CAMERA CALIBRATION BOARD, CAMERA CALIBRATION DEVICE, CAMERA CALIBRATION METHOD, AND PROGRAM-RECORDING MEDIUM FOR CAMERA CALIBRATION
Document Type and Number:
WIPO Patent Application WO/2017/056473
Kind Code:
A1
Abstract:
A camera calibration board arranged three-dimensionally on a base comprises a base, a plurality of planar sheets, and a plurality of supports having the same length. The plurality of planar sheets are arranged in different planes within space in relation to the base. The base and each of the plurality of planar sheets have different reflectance with visible light. It is thereby possible to accurately measure an external camera-to-camera parameter needed to calibrate the cameras to each other, the cameras using different types of image sensors, in order to easily analyze an image group acquired by a plurality of sensors.

Inventors:
SHIBATA TAKASHI (JP)
TANAKA MASAYUKI (JP)
OKUTOMI MASATOSHI (JP)
Application Number:
PCT/JP2016/004338
Publication Date:
April 06, 2017
Filing Date:
September 26, 2016
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Assignee:
NEC CORP (JP)
TOKYO INST TECH (JP)
International Classes:
H04N5/232; G01B11/00; G03C11/06
Domestic Patent References:
WO2014162344A12014-10-09
Foreign References:
JP2011064636A2011-03-31
Other References:
KATSUHIRO SUZUKI ET AL.: "Thermal Observation Robot System using 3-Dimensional Mapping", ROBOTICS MECHATRONICS KOENKAI 2015 KOEN RONBUNSHU, 16 May 2015 (2015-05-16), pages 353 - 356
Attorney, Agent or Firm:
IKEDA, Noriyasu et al. (JP)
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