Smoke, Snow, fog, and certain products like glass and silicon are clear, when imaging in SWIR. Which means the atmospheric influence of fog and smoke disappears from the shortwave infrared (SWIR) spectrum. Although capturing visuals during the SWIR lacks the color content material of your seen region, SWIR visuals -which https://www.mindvision.ltd/Special-Camera/Short-wave-Infrared-Camera.html