Patent · US Active

Converting imagery and charts to polar projection

US10460427B2 · kind B2 · utility

2Cited by

6References

18Claims

0Family size

Assignee

The Government of the United States of America, as represented by the Secretary of the Navy · US

Inventors

John T. Sample · Pearl River, US
Elias Z. K. Ioup · New Orleans, US
Bruce Lin · New Orleans, US

Key dates

Filing date	Nov 22, 2017
Grant date	Oct 29, 2019
Priority date	—
Expiry date	Jul 11, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06T2215/08
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Embodiments relate to converting imagery to a polar projection. Initially, a map request that specifies the polar projection for a geographic area is obtained. The geographic area into a number of image regions. A first source image is obtained for a first image region, where the first source image is at a first target resolution, and a second source image is obtained for a second image region, where the second source image is at a second target resolution that is determined based on a geographic location of the second image region. The first source image and the second source image are projected into the polar projection to obtain a single output image. At this stage, a polar coordinate system that corresponds to the polar projection is used to render the single output image in a spatial map.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.