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Title:
CALIBRATION METHOD AND APPARATUS FOR PANORAMIC STEREO VIDEO SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/120776
Kind Code:
A1
Abstract:
A method of calibrating a camera array comprising a plurality of cameras configured to capture a plurality of images to generate a panorama, wherein the relative positions among the plurality of cameras are constant, the method comprising: moving the camera array from a first position to a second position; measuring a homogeneous transformation matrix of a reference point on the camera array between the first position and the second position; capturing images at the first position and the second position by a first camera and a second camera on the camera array; and determining a homogenous transformation matrix between the first camera and the second camera based on the images captured by the first camera and the second camera at the first position and the second position. The method further comprises identifying a feature in the images taken by the first camera at the first position and the second position, and estimating a rotation of the first camera from the first position to the second position based on the feature.

Inventors:
YU JINGYI (CN)
MA YI (CN)
Application Number:
PCT/CN2016/070712
Publication Date:
July 20, 2017
Filing Date:
January 12, 2016
Export Citation:
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Assignee:
UNIV SHANGHAI TECH (CN)
International Classes:
G03B37/04; H04N9/09
Domestic Patent References:
WO2015179574A12015-11-26
Foreign References:
US20080002023A12008-01-03
US20140218550A12014-08-07
CN104169965A2014-11-26
US20120154518A12012-06-21
US20140300691A12014-10-09
EP2736013A22014-05-28
Other References:
BO ET AL.: "IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS", 3 November 2013, IEEE, article "A multiple-camera system calibration toolbox using a feature descriptor-based calibration pattern", pages: 1301 - 1307
See also references of EP 3403403A4
Attorney, Agent or Firm:
SHANGHAI SAVVY INTELLECTUAL PROPERTY AGENCY (CN)
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