Method of determining a changing spatial distribution of particles at multiple points in time

US9733267B2 · kind B2 · utility

Assignee

• LAVISION GMBH · DE

Inventors

• Bernhard Wieneke · Oettingen, DE
• Andreas Schroeder · Weinheim, DE
• Daniel Schanz · Oettingen, DE

Key dates

• Filing date: Nov 30, 2015
• Grant date: Aug 15, 2017
• Expiry date: Dec 25, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30241
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

For determining a changing spatial distribution of particles at each of multiple points in time, real two-dimensional images of the particles are recorded with different mapping functions. An estimated spatial distribution of the particles is provided. Virtual two-dimensional images of the estimated spatial distribution are calculated applying the different mapping functions. Differences between the virtual and the real two-dimensional images are determined; and the estimated spatial distribution of the particles are varied for reducing the differences to obtain a spatial distribution approximated to the actual spatial distribution of the particles. The estimated spatial distribution of the particles is provided in that the locations of the individual particles in a spatial distribution approximated for one other point in time are shifted dependently on how the locations of the individual particles have changed between at least two spatial distributions approximated for at least two other points in time.