A hyperspectral thermal imager developed inhouse is used for segregation of commercial plastics. The imager combines an uncooled microbolometer equipped thermal camera and a low-order scanning Fabry-Pérot interferometer placed in front of its collecting optics. The distribution of transmitted wavelengths is determined by the distance between the two interferometer mirrors. Data cubes are constructed by capturing images at different mirror separations and the recorded interferograms are subject to subsequent analysis. Twelve types of plastics have been heated to 60°C and imaged before being identified based on a nine-component principal component model and k-nearest neighbors.
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.