Construct a Model
Ω  is the space of shapes
Φ  is a finite subset of feature filters
We seek a probability distribution  p  on  Ω
•∫Ω p(Γ) dΓ = 1    (1)
That reproduces the statistics for all  φ  in Ω
–∫Ω p(Γ) δ(z-φ(s)) dΓ = μ(z; φ)     (2)