Patent · US Active

Particle boundary identification

US11068740B2 · kind B2 · utility

0Cited by

2References

16Claims

0Family size

Assignee

Malvern Panalytical Limited · GB

Inventors

James Hyland · Malvern, GB
Chris Jones · Spanish Fork, US

Key dates

Filing date	Sep 1, 2017
Grant date	Jul 20, 2021
Priority date	—
Expiry date	Sep 1, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01N2015/1497
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of characterising particles (140) by using a processor (301) to identify a particle boundary (165) of at least one particle (140) in an image (135, 171). The method comprises processing the image (135, 171) using a thresholding method to determine a first boundary (160a) corresponding with the at least one particle (140) and processing the image (135, 171) using an edge detection method to determine a second boundary (160b) corresponding with at the least one particle (140). The first boundary (160a) and second boundary (160b) are combined to create a combined boundary (160). A particle boundary (165) of the at least one particle (140) is determined using the combined boundary. A parameter used by the edge detection method is adaptive, and determined with reference to the image (135, 171).

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