I can not find a clear answer on the internet about the difference between a uniform and non-uniform cost map. I am interested in getting an answer in the context of grid maps for robot navigation.
EDIT: I found the answer, in my case the uniformity was referring to the cost of traversing from one cell to another. Thus, if the cost is fixed the cost map is said to be of uniform cost. Otherwise, if the cost is variable the map is said to be of non-uniform cost.