If there's a strong source of local illumination, such as the moon or nearby lights, shadows look the same in night vision as they do in black and white video, although there may be differences in albedo. read more
Night vision goggles basically intensify light. Since shadows are a region of no light whatsoever, they are not visible. (The light intensifying property is also why you have to take them off, should a strong source of light, eg flares, come in your field of view. read more
Night vision tools are less ubiquitous in law enforcement, but as prices fall, they are becoming more common. Yet many law enforcement officers are still confused about what night vision can and can't do and what they need to know before buying it. read more
If there’s a strong source of local illumination, such as the moon or nearby lights, shadows look the same in night vision as they do in black and white video, although there may be differences in albedo. read more
Modern night vision optics come equipped with an IR Illuminator. In my neck of the woods we call it a flashlight, call it what you want it does work well. The proper name for night vision is, image intensification night vision. Night vision images tend to be more detailed and natural. read more