Calibration method of an image device and related image device and operational device thereof
US10708520B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 6, 2019 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Jun 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3277
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A calibration method of an image device includes at least two image capturing units included in the image device capturing at least two corresponding images; a processor executing distortion correction on the at least two corresponding images, extracting a plurality of feature points of a predetermined number of planes of an object from the at least two corresponding images, classifying the plurality of feature points according to each plane of the predetermined number of planes to accordingly calculate a point-to-point homography matrix corresponding to the each plane respectively to generate a rotation/translation matrix corresponding to the at least two image capturing units, generating a final rotation matrix corresponding to each image capturing unit of the at least two image capturing units according to the rotation/translation matrix, storing the final rotation matrix in a memory, and calibrating the each image capturing unit according to the final rotation matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.