Computer-implemented automatic precision calculation method of imaging pose of rotational linear array scanning image
US12159430B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2022 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Aug 1, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30244
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An automatic precision calculation method of a pose of a rotational linear array scanning image includes: obtaining a collection parameter of the rotational linear array scanning image and a camera intrinsic parameter; based on the above parameters, projecting the rotational linear array scanning image to its tangent plane by orthographic projection transformation to generate an equivalent frame image having the approximately same intrinsic and extrinsic parameters as the rotational linear array scanning image and calculate a coordinate of each pixel of the equivalent frame image projected onto the rotational linear array scanning image based on an inverse projection transformation calculation method; by using structure-from-motion method, automatically calculating a pose parameter of the equivalent frame image and a corresponding waypoint three-dimensional coordinate; with the pose parameter of the equivalent frame image as an initial value, obtaining an accurate imaging parameter of the rotational linear array scanning image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.