Title:
CAMERA CALIBRATION APPARATUS AND METHOD
Document Type and Number:
Japanese Patent JP3849030
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a camera calibration apparatus having a simple structure and a method which do not require points of measurements of which the three-dimensional positions are known, the correspondence between the points of measurement, or synchronization between cameras when images are acquired.
SOLUTION: A plurality of items of position data in the locus of movement of an object moving within a range of measurement common for a plurality of stereoscopic cameras 4 and 5 are measured in coordinate systems centered at the stereoscopic cameras 4 and 5. Since the coordinate systems of the stereoscopic cameras 4 and 5 are arranged differently, the plurality of items of position data, measured in this way by the stereoscopic cameras 4 and 5, are numerically different from each other, but their shapes of distribution are identical. For converting the state of distribution of the position data into a numerical form, principal component analysis is performed on the position data to constitute a coordinate system common for the stereoscopic cameras and estimate the relative arrangement of the coordinate systems of the stereoscopic cameras 4 and 5 via the common coordinate system.
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Inventors:
Yasuyuki Nakamura
Toshikazu Wada
Takeo Iizuka
Toshikazu Wada
Takeo Iizuka
Application Number:
JP2004128502A
Publication Date:
November 22, 2006
Filing Date:
April 23, 2004
Export Citation:
Assignee:
National University Corporation Wakayama University
International Classes:
G01B11/00; G06T1/00; (IPC1-7): G01B11/00; G06T1/00
Domestic Patent References:
| JP2003065714A | ||||
| JP2000268179A | ||||
| JP11101641A |
Attorney, Agent or Firm:
Kosaku Sugimura