An Application of the S-Transform to Optical 3-D Surface Profile Measurement

Author

Dursun, Ali ; Saraç, Zehra ; Ecevit, Necati

Author_Institution

Elektron. Muhendisligi Bolumu, Gezbe Yuksek Teknoloji Enstitusu

fYear

2006

fDate

17-19 April 2006

Firstpage

1

Lastpage

4

Abstract

The S transform is an extension of the idea of the continuous wavelet transform (CWT) and is based on a moving and scalable localizing Gaussian window. It has been applied to many disciplines, such as cardiology, audiology, seismology etc. Now we use it to measure optical 3D surface profile. In this work we obtained the fringe patterns from fringe projector setup with Michelson interferometry. After that, these patterns were evaluated by using S-faz algorithm that firstly was formed by us and continuous wavelet-phase algorithm. As a result, it was seen that the S-phase method gave a better 3-D profile than other method and showed the high frequency resolution

Keywords

Michelson interferometers; light interferometry; wavelet transforms; CWT; Gaussian window; Michelson interferometry; S transform; S-faz algorithm; continuous wavelet transform; fringe projector setup; optical 3D surface profile measurement; Cardiology; Continuous wavelet transforms; Frequency; Optical interferometry; Optical surface waves; Seismic measurements; Seismology; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Communications Applications, 2006 IEEE 14th

Conference_Location

Antalya

Print_ISBN

1-4244-0238-7

Type

conf

DOI

10.1109/SIU.2006.1659777

Filename

1659777