This paper presents a novel method of 3D shape measurements of specular surfaces, based on fringe reflection technique
and Fourier transform profilometry. A simple measurement system is set up. In this system, an LCD screen is used to
display orthogonal composite fringe patterns. The fringe patterns reflected by a standard plane mirror and a measured
specular surface are captured by a CCD camera. The phase distributions of the fringe patterns would be extracted by
using Fourier transform profilometry. Relations between the surface gradients and phase changes in horizontal and
vertical directions have been established. Then the shape of the measured surface can be reconstructed from gradient
vector field by full-field least square method. The experiment of a concave mirror with a 100-mm diameter proves the
validity of this method.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.