Emgu CV Library Documentation
SADWindowSize Field
NamespacesEmgu.CV.StructureMCvStereoBMStateSADWindowSize

www.emgu.com/wiki
Could be 5x5..21x21. Correspondence using Sum of Absolute Difference (SAD):
Declaration Syntax
C#Visual BasicVisual C++
public int SADWindowSize
Public SADWindowSize As Integer
public:
int SADWindowSize

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