Patent · US Active

Liquid level detection in receptacles using a plenoptic camera to measure the surface topography of the liquid

US10724889B2 · kind B2 · utility

0Cited by

1References

5Claims

0Family size

Assignee

CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA—RECHERCHE ET DÉVELOPPEMENT · CH

Inventors

Helmut Knapp · Ebikon, CH
Philipp Schmid · Seattle, US
Christian Beyer · Freiberg, DE
Matthias Höchemer · Sachseln, CH
Vincent Revol · Luzern, CH

Key dates

Filing date	Jul 16, 2018
Grant date	Jul 28, 2020
Priority date	—
Expiry date	Jul 16, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/10052
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Disclosed is a method of measuring a volume of a liquid provided in at least one receptacle, including the steps of: providing a receptacle having at least one cavity for holding a liquid; providing a plenoptic camera positioned so as to be able to image the surface of the liquid; positioning the receptacle such that the liquid surface faces an objective lens of the plenoptic camera; making at least one plenoptic image of the surface of the liquid by way of the plenoptic camera; determining a surface topography of the liquid on the basis of the at least one image; calculating the volume of liquid based on the measured surface topography and at least one known dimension and/or position of the cavity.

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