Emgu CV Library Documentation
alpha3 Field
NamespacesEmgu.CV.StructureMCvFGDStatModelParamsalpha3

www.emgu.com/wiki
Alternate to alpha2, used (e.g.) for quicker initial convergence. Typical value 0.1.
Declaration Syntax
C#Visual BasicVisual C++
public float alpha3
Public alpha3 As Single
public:
float alpha3

Assembly: Emgu.CV (Module: Emgu.CV) Version: 1.5.0.0 (1.5.0.0)