Plane coding target and image splicing system and method applying the same
US11689737B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2022 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Dec 13, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/172
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a plane coding target and an image splicing system and method applying the same. The plane coding target comprises a plurality of coding units distributed in an array, the coding unit comprises one central coding point, a plurality of normal coding points and at least one positioning point, and a positioning point distribution style of the positioning point is used for determining coordinates of the central coding point and the normal coding points in a coding unit coordinate system; and coding numerical value sequences of the coding units are different from each other and unique. The plane coding target can realize large-area coding and positioning functions, and the image splicing system applying the plane coding target can solve the problems of splicing error and error accumulation caused by an identification error of a splicing location, thus realizing large-range, high-precision and short-time two-dimensional image splicing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.