The color romance technology has attracted extensive attention

because many industries have not been satisfied with the 3D figuration information and they also need the color information of the subjects. But in the process of assigning the color directly

there are some errors caused by the difference of the geometrical properties of the measured surface. In order to reflect the change of the geometrical properties of the measured surface

the measured surface is divided into several sub-units

so the change of the geometrical properties of the measured surface can be considered as the change in relative position between the sub-units and the projector as well as the camera. Further

the mathematical model is established based on the position relation mentioned above. The relation between the slope change of the sub-units and their incident intensity and scattered intensity is analyzed. Combining with the impact of the relation on the color information

the selection principle of the sub-units is given to eliminate the errors of the color romance brought by the impact of the incident intensity and the scattered intensity. Further

a kind of color romance method which is not affected by the incident intensity and the scattered intensity is given. The emulation and the practice experiment of the color romance are executed making use of the 3D measured data given by the 3D measurement system. The results show that the incident intensity and the scattered intensity of different parts of the measured surface is uniformly corrected

and the color information of the romanced measured surface is almost uniform with its real color

and even changing the measuring angle

there is a good visual effect as well.