Abstract: A method, joined Uarbor wavelet and fractal together, used to describe the local structure feature of medical imaging tumor boundary is put forward. The method shows the following characteristics; using Mcycr cartoon-texture image decomposition model, describing local scale by using scale-space kernel function, measuring scale by the characteristic difference in adjacent scale curvature, extracting structure irregular feature based on local fractal detention of boundary. Thus, this description method for medical imaging tumor boundary has more diagnostic significance.

Key words: Cartoon-texture decomposition, Uabor kernel function, Local fractals, Multi-scale analysis