Title:
CAMERA CALIBRATION DEVICE, CAMERA CALIBRATION METHOD, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/043055
Kind Code:
A1
Abstract:
The present disclosure relates to a camera calibration device, a camera calibration method, and a recording medium that make it possible to perform calibration reliably and with increased accuracy. Provided is a camera calibration device comprising: an image acquisition unit that acquires, from a camera, a captured image that indicates a chart pattern displayed in a time-division manner on a display panel, which is inclined with respect to the optical axis direction of the camera; a feature point information generation unit that generates integrated feature point information by integrating, on a single plane, a feature point at a first time of a chart pattern of the first time included in an image frame of the first time of the captured image, and a feature point at a second time of a chart pattern of the second time that includes an arrangement of a group of feature points included in an image frame of the second time of the captured image and different from the chart pattern of the first time; and a parameter acquisition unit that acquires a parameter for calibrating the camera, on the basis of the integrated feature point information.
Inventors:
MYOKAN YOSHIHIRO (JP)
Application Number:
PCT/JP2023/028737
Publication Date:
February 29, 2024
Filing Date:
August 07, 2023
Export Citation:
Assignee:
SONY GROUP CORP (JP)
International Classes:
G06T7/80; H04N17/00; H04N23/60
Domestic Patent References:
| WO2018235163A1 | 2018-12-27 |
Foreign References:
| JP2009069135A | 2009-04-02 | |||
| JP2019161278A | 2019-09-19 |
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
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