A method of generating a 3D thermogram of an object includes capturing geometrical data of the object to prepare a 3D model of the object, capturing measured temperature values and recording conditions for object points of at least one partial surface of the object, associating the measured temperature values with the object points to generate a 3D thermogram, repeating capturing of measured temperature values for the object points on new recording conditions and comparing the recording conditions with the new recording conditions for the object points. The method further includes automatically overwriting the captured measured temperature value with the repeated captured measured temperature values for the respective object point of the 3D thermogram when the new recording conditions are closer to ideal conditions than the recording conditions, and projecting the generated 3D thermogram onto the associated at least one partial surface of the object itself.