Virtual simulation infrared thermal imaging method and system based on Unity 3D

The invention provides a virtual simulation infrared thermal imaging method and system based on Unity 3D, and the method comprises the steps: detecting a plurality of pixel points contained in a real object image when the real object image of an object is collected through a camera, and judging a target source corresponding to each pixel point, the target source comprising a light source and the object; if it is judged that the target source corresponding to the pixel point is the light source, a first temperature value corresponding to the pixel point is calculated according to a first calculation rule; if it is judged that the target source corresponding to the pixel point is the object, a second temperature value corresponding to the pixel point is calculated according to a second calculation rule; and superposing the first temperature value and the second temperature value to generate a corresponding third temperature value, and calculating a target gray value corresponding to the pixel point according to