| 摘要 |
<p>Systems and methods can determine the temperatures and/or emissivities of an object (150) that may be semi-transparent or in an environment (160) with background lighting (152). One such system (100) measures the spectra of background lighting (152); light from a target area while the system (100) illuminates the area, light from the area without illumination, and in some embodiments, light from the area while the system (100) illuminates the back of the object. The spectra are typically measured using at least four wavelength bands. Numerical methods using relative measurements can solve for a temperature and/or spectral emissivity of the object.</p> |
