The homogeneous Poisson point process serves as a reference model for a completely spatially random (CSR) point pattern. A homogeneous Poisson point process that has intensity has the following properties:
The number of points that fall in any region W has a Poisson distribution whose mean is , where denotes the area of W.
If and are disjoint sets, then and are independent random variables.
The points within a study area W are independent and uniformly distributed.