Panoramic image mapping method
US10796410B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2016 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Mar 3, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/4038
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a panoramic image mapping method, wherein mapping regions and a non-mapping region are partitioned for an equirectangular panoramic image with a resolution of 2M×M, where only the partitioned mapping regions are mapped as square regions; the method comprises:, computing a vertical distance and a horizontal distance from a point on the square region to a center of the square region, a larger one of which being denoted as m; computing a distance n from the point to a zeroth (0th) point on a concentric square region; computing a longitude and a latitude corresponding to the point; computing a corresponding position (X, Y) in the equirectangular panoramic image to which the point is mapped; and then assigning a value to the point. The method may effectively reduce oversampling, thereby effectively reducing the number of pixels of the panoramic image and the code rate required for coding with little distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.