Modeling the 3D Breast Surface Using Thermography.

Breast thermographies can show temperature distribution and detect abnormalities in the body on examination. This work shows an implementation allowing their used for three-dimensional (3d) models of the breast surface from their acquisition in five different angles. Firstly, breast segmentation is performed using U-Nets trained for each angle. Then, the segmented edges are transformed into parametric curves. Geometric transformation converts these curves from two-dimensional (2d) to a three-dimensional after proper rotations and translation of them. These 3D curves are described by B-splines curves and used to build a Rational Non-Uniform B-splines Surface (NURBS) for the breast region. Texture mapping is applied to project the frontal thermal data onto the 3d surface. A Likert scale-based survey was conducted with healthcare experts, and experienced academics to evaluate the final results and compare them with examples of the same persons. The results received high grades of approval and agreements.