Patent · US Active

System and method for underwater distance measurement

US10248886B2 · kind B2 · utility

1Cited by

19References

30Claims

0Family size

Assignee

PGS Geophysical AS · NO

Inventors

Torbjørn Ursin · Oslo, NO
Michael Malling · Oslo, NO
Geir Andre Motzfeldt Drange · Asker, NO

Key dates

Filing date	Apr 30, 2014
Grant date	Apr 2, 2019
Priority date	—
Expiry date	Apr 27, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30252
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

At least some of the exemplary embodiments are a method. The method includes obtaining, at an underwater imaging device, a stream of images of geophysical surveying equipment, wherein the geophysical surveying equipment includes a target pattern having a calibrated image size. The geophysical surveying equipment is tracked using the image stream and the target pattern. The method further includes capturing from the image stream, a single image of the images of the geophysical surveying equipment, wherein the single image comprises an image of the target pattern having an apparent size. Based on the calibrated image size and the apparent size, a distance between the underwater imaging device and the geophysical surveying equipment is determined.

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