An automatic image alignment method applied to pressure sensitive paint measurements

Author

Sant, Y. Le ; Deleglise, B. ; Mebarki, Y.

Author_Institution

Office Nat. d´´Etudes et de Recherches Aerospatiales, Chatillon, France

fYear

1997

fDate

29 Sep-2 Oct 1997

Firstpage

57

Lastpage

65

Abstract

Pressure Sensitive Paint technique (PSP) uses images that have to be processed to calculate the pressure field on the model. There are two main issues in image processing. The first one is to recognize the model position in the image and the second one is to use this result to extract the useful information from the image. The presented method deals with these tasks. It requires markers on the model. They are filled circles that are detected with a dedicated function. They have then to be related to model markers. PSP technique provides a lot of images, so software has been written to work in an automatic mode. The camera attitude and location relative to the model are automatically recognized. The full software package enables one to process PSP images without human involvement

Keywords

aerodynamics; data reduction; image resolution; pressure sensors; software packages; wind tunnels; PSP technique; automatic image alignment method; automatic mode; camera attitude; dedicated function; markers; model position; optical mapping; pressure field; pressure sensitive paint; software package; wind tunnels; Cameras; Data mining; Humans; Image processing; Image recognition; Infrared heating; Paints; Polynomials; Pressure measurement; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation in Aerospace Simulation Facilities, 1997. ICIASF '97 Record., International Congress on

Conference_Location

Pacific Grove, CA

Print_ISBN

0-7803-4167-8

Type

conf

DOI

10.1109/ICIASF.1997.644658

Filename

644658