Fundamental theoretic research of thermal texture maps I--simulation and analysis of the relation between the depth of inner heat source and surface temperature distribution in isotropy tissue.

Thermal texture maps is a new technology that can locate the inner abnormal heat sources of human by thermography analysis, and a great deal of application examples in clinic to early detect breast cancer with it shows its effectiveness. But the current explanation for its principle is hard to comprehensive and did not illuminate clearly the relation between the inner heat source and surface temperature distribution. In this paper, the temperature fields caused by the point heat source in isotropy tissue are simulated in different conditions, including different heat source intensities, different heat transfer coefficients and different heat depths and so on. The variation of surface temperature with the heat source depth change is discussed especially. The analysis result of simulation data shows that there lies the special relation between the heat source depth and the surface temperature distribution.