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Title:
CALIBRATION DEVICE, CALIBRATION METHOD, OPTICAL DEVICE, IMAGING DEVICE AND PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/029950
Kind Code:
A1
Abstract:
For the purpose of accurately finding camera parameters in a short time, a calibration device (1) is a calibration device for an optical device (2) provided with a two-dimensional image conversion element having a plurality of pixels, and an optical system that forms an image formation relationship between the image conversion element and a three-dimensional world coordinate space. The calibration device (1) is provided with: a calibration data acquisition unit (8) that acquires calibration data indicating a correspondence between two-dimensional pixel coordinates in the image conversion element and three-dimensional world coordinates in the world coordinate space; and a parameter calculation unit (7) that applies, to the calibration data acquired by the calibration data acquisition unit (8), a camera model in which two coordinate values of the two-dimensional pixel coordinates are expressed as a function of three coordinate values of the three-dimensional world coordinates to thereby calculate parameters of the camera model.

Inventors:
MATSUZAWA TOSHIAKI (JP)
Application Number:
PCT/JP2017/020493
Publication Date:
February 15, 2018
Filing Date:
June 01, 2017
Export Citation:
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Assignee:
OLYMPUS CORP (JP)
International Classes:
H04N5/232; G06T7/60; H04N17/02
Foreign References:
JP2007309660A2007-11-29
JP2004213332A2004-07-29
Attorney, Agent or Firm:
UEDA, Kunio et al. (JP)
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