Multiple rotation assessment through isothetic fringes in speckle photography
The use of different pupils for storing each speckled image in speckle photography is employed to determine multiple in-plane rotations. The method consists of recording a four exposure specklegram where the rotations are done between exposures. This specklegram is then optically processed in a whol...
- Autores:
-
Ángel-Toro, Luciano
Tebaldi, Myrian
Bolognini, Néstor
Ángel-Toro, Luciano
Tebaldi, Myrian
Bolognini, Néstor
- Tipo de recurso:
- Fecha de publicación:
- 2007
- Institución:
- Universidad EAFIT
- Repositorio:
- Repositorio EAFIT
- Idioma:
- eng
- OAI Identifier:
- oai:repository.eafit.edu.co:10784/1448
- Acceso en línea:
- http://hdl.handle.net/10784/1448
- Palabra clave:
- speckle photography
isothetic fringes
pupils
rotation
specklegram
- Rights
- License
- Acceso abierto
| Summary: | The use of different pupils for storing each speckled image in speckle photography is employed to determine multiple in-plane rotations. The method consists of recording a four exposure specklegram where the rotations are done between exposures. This specklegram is then optically processed in a whole field approach rendering isothetic fringes, which give detailed information about the multiple rotations. It is experimentally demonstrated that the proposed arrangement permits the depiction of six isothetics in order to measure either six different angles or three nonparallel components for two local general in-plane displacements. © 2007 Optical Society of America |
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