Tomographic reconstruction of vector fields

Author

Braun, Hans ; Hauck, Axel

Author_Institution

Dept. of Meas. & Control. Karlsruhe Univ., Germany

Volume

39

Issue

2

fYear

1991

fDate

2/1/1991 12:00:00 AM

Firstpage

464

Lastpage

471

Abstract

The application of tomography to the reconstruction of vector fields is considered. Two different types of interaction between the radiation used for measurement and the investigated vector fields are discussed. A complete reconstruction of a vector field can only be obtained if measurements based on both types of interaction are available. Otherwise, only curl-free or source-free components of the field can be reconstructed. In the case of nonhomogeneous boundary conditions, additional harmonic field components occur. Some experimental results are presented showing the reconstruction of flow velocity fields based on ultrasonic time-of-flight measurements

Keywords

computerised signal processing; computerised tomography; flow visualisation; vectors; curl-free component; flow velocity fields; harmonic field components; nonhomogeneous boundary conditions; radiation interactions; signal processing; source-free components; tomography; ultrasonic time-of-flight measurements; vector field reconstruction; Acoustic propagation; Boundary conditions; Fluid flow measurement; Helium; Image reconstruction; Inorganic materials; Optical propagation; Tomography; Ultrasonic variables measurement; Velocity measurement;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.80830

Filename

80830