A holographic in-line imaging system for meteorological applications

Author

Kaikkonen, Ville A. ; Ekimov, Dmitry ; Makynen, Anssi J.

Author_Institution

Centre for Meas. & Inf. Syst., Univ. of Oulu, Kajaani, Finland

fYear

2013

fDate

6-9 May 2013

Firstpage

1630

Lastpage

1635

Abstract

A digital holographic in-line imaging setup aimed for meteorological measurements is presented. The system is designed to capture detailed information of macroscopic hydrometeors in a large imaging volume. We suggest the use of holographic imaging to overcome the depth of field limitations of conventional macro imaging systems in meteorological imaging applications. The first low magnification holographic imaging prototype built for measuring free falling hydrometeors in the size range of a few tens of micrometers to several millimeters is described. The results of laboratory tests and the first field tests show high quality and resolution of reconstructed holograms to enable detailed image analyses on snowflakes and other hydrometeors.

Keywords

holography; image reconstruction; meteorological instruments; depth of field; holographic in-line imaging system; image analyses; macroscopic hydrometeors; magnification holographic imaging prototype; meteorological applications; Cameras; Image reconstruction; Image resolution; Light sources; Snow; digital refocusing; disdrometry; macroscopic imaging; present weather;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2013 IEEE International

Conference_Location

Minneapolis, MN

ISSN

1091-5281

Print_ISBN

978-1-4673-4621-4

Type

conf

DOI

10.1109/I2MTC.2013.6555690

Filename

6555690