Title:
CALIBRATION DEVICE, CALIBRATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/155719
Kind Code:
A1
Abstract:
Information acquisition units 11-1, 11-2 (11-2a) acquire peripheral object information, and information processing units 12-1, 12-2 (12-2a) generate point group data pertaining to feature points of a peripheral object on the basis of the peripheral object information. A weight setting unit 13 sets weights corresponding to states of the peripheral object and the information acquisition units at the time of the acquisition of the peripheral object information. A calibration processing unit 15 uses the point group data, the weights, and an external parameter stored in a parameter storage unit 14 to calculate, on the basis of a cost indicating an error of the external parameter, a new external parameter in which the error is minimized. A parameter update unit 16 updates the external parameter stored in the parameter storage unit 14 with the new calculated external parameter. Because a highly accurate external parameter is stored in the parameter storage unit 14, calibration can be carried out stably.
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Inventors:
YANG SEUNGHA (JP)
AOKI SUGURU (JP)
SATOH RYUTA (JP)
AOKI SUGURU (JP)
SATOH RYUTA (JP)
Application Number:
PCT/JP2018/042448
Publication Date:
August 15, 2019
Filing Date:
November 16, 2018
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H04N5/232; G01S17/89; G06T7/80
Domestic Patent References:
| WO2015015542A1 | 2015-02-05 | |||
| WO2012137434A1 | 2012-10-11 |
Foreign References:
| JP2005141655A | 2005-06-02 | |||
| JP2018004420A | 2018-01-11 | |||
| JP2015212849A | 2015-11-26 |
Attorney, Agent or Firm:
MIYATA, Masaaki et al. (JP)
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