Radiometric Image Restoration And Calibration With A Modified TICM II Thermal Imager

F. J. J. Clarke; J. K. Leonard

doi:10.1117/12.969688

1 April 1990 Radiometric Image Restoration And Calibration With A Modified TICM II Thermal Imager

F. J. J. Clarke, J. K. Leonard

Proceedings Volume 1191, Optical Systems for Space and Defence; (1990) https://doi.org/10.1117/12.969688
Event: SIRA/Optical Systems for Space and Defence, 1989, London, United Kingdom

Abstract

A new measurement facility uses a TICM II thermal imager specially modified by NPL to determine the distribution of emissivity of non-uniform materials and artefacts at near ambient temperature. A dual-reference image processing algorithm is used to provide both image restoration and calibration. Systematic variations of responsivity across the image (fixed pattern errors) such as banding and narcissus effect, which arise from various optical, scanning, detector and electronic defects are completely removed, to the limits imposed by random noise and stability. The algorithm is applicable to greyscale images from any image processing transducer with near-linear response.

Citation Download Citation

F. J. J. Clarke and J. K. Leonard "Radiometric Image Restoration And Calibration With A Modified TICM II Thermal Imager", Proc. SPIE 1191, Optical Systems for Space and Defence, (1 April 1990); https://doi.org/10.1117/12.969688

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

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.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available