Table 3 Mixture models used in the four methods
Method | Class | ||
|---|---|---|---|
Background | Vessel | Modelled data/morphology | |
Wilson et al. | Two Gaussian distributions | A uniform distribution | Brain/TOF-MRA |
Gao et al. | A Rayleigh and several Gaussian distributions | A Gaussian distribution | Brain/TOF-MRA |
Zhou et al. | A Rayleigh and two Gaussian distributions | A Gaussian distribution | Brain/TOF-MRA |
Proposed | Two Exponential distributions | A Gaussian distribution | All anatomical parts, all the angiography |