Objective Measurement Of MRTD

T. L. Williams; N. T. Davidson; S. Wocial

doi:10.1117/12.945566

11 October 1988 Objective Measurement Of MRTD

T. L. Williams, N. T. Davidson, S. Wocial

Proceedings Volume 0916, Infrared Systems--Design and Testing; (1988) https://doi.org/10.1117/12.945566
Event: Sira/SPIE Infrared Meeting, 1988, London, United Kingdom

Abstract

The minimum resolvable temperature difference (MRTD) and to a lesser extent the minimum detectable temperature difference (MDTD) are two of the primary criteria used in evaluating the performance of thermal imaging systems. They are used both at the design stage, where they are calculated from known parameters of the system, as well as in acceptance testing of production systems. The measurement of MRTD requires the operator to judge the point at which the temperature difference of a 4-bar target is sufficient for the target to be just resolved. It therefore contains a subjective element which results in measurements done by different observers frequently yielding significantly different values. There is considerable pressure from purshasers, manufacturers and users of thermal imagers to find an objective alternative to this subjective measurement. This paper describes two techniques for obtaining an objective measurement of MRTD which are currently being developed by the authors and discusses some of the difficulties associated with producing an acceptable approach to this problem.

Citation Download Citation

T. L. Williams, N. T. Davidson, and S. Wocial "Objective Measurement Of MRTD", Proc. SPIE 0916, Infrared Systems--Design and Testing, (11 October 1988); https://doi.org/10.1117/12.945566

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