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红外数码照相是一种伪色照相,它是将人的视觉系统不能感官的红外图像转换成可见图像,因此红外图像不能真实再现客观世界的本来面目。然而红外伪色照相却扩大了人的视野,在军事和公安技术中,能够显现弱光、浓雾和烟雾下,肉眼看不见的军事目标和犯罪细节。
Infrared digital photography is a kind of false color photography. It converts the infrared image that can not be sensed by the human visual system into a visible image, so the infrared image can not truly reproduce the true appearance of the objective world. However, the use of infrared false-color photography has broadened people’s perspectives. In military and public security technologies, military targets and criminal details that are invisible to the naked eyes, thick fogs and smog can be revealed.