Scene contrast temperature in two different climates.

Applied optics Pub Date : 2025-09-20 DOI:10.1364/AO.570757
Alfred Moore, Angus Hendrick, Patrick Leslie, Ronald Driggers, Eddie Jacobs
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Abstract

Scene contrast temperature (SCT) is a measurement of temperature and photon flux variation in an emissive scene used to calculate targeting task performance, a metric used to determine the ability of an observer to perform visual tasks. While previous research has compared the SCT of midwave infrared (MWIR) and longwave infrared (LWIR) systems in a hot, dry climate, little work has been done to compare the performance of these systems in different climates. This paper compares the SCT of a hot, dry climate and a cold, dry climate in MWIR and LWIR. The results indicate that SCT is higher in the LWIR in most conditions, except for cold, daylight environments.

两种不同气候下的场景温度对比。
场景对比温度(SCT)是用于计算目标任务性能的发射场景中的温度和光子通量变化的测量,用于确定观察者执行视觉任务的能力。虽然之前的研究比较了中波红外(MWIR)和长波红外(LWIR)系统在炎热干燥气候下的SCT,但很少有研究比较这些系统在不同气候下的性能。本文比较了中低红外区炎热干燥气候和寒冷干燥气候的SCT。结果表明,除了寒冷的日光环境外,大多数条件下SCT在LWIR中都较高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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