Depends. The 4th amendment protects people, not places.
For your house?
Probably
For your yard?
Probably not, but it depends what part of the yard.
Cameras arranged on poles?
I'm too lazy to look up cases.
See Kyllo and friends.
The reason it's divorced from "freedom from observation" is because the constitution does not guarantee you a freedom from observation, only a freedom from search.
These are not the same.
As one of the cases says, "the police are not required to shield their eyes as they pass homes if they do not have probable cause"
Cameras arranged on poles? I'm too lazy to look up cases. See Kyllo and friends.
The reason it's divorced from "freedom from observation" is because the constitution does not guarantee you a freedom from observation, only a freedom from search. These are not the same.
As one of the cases says, "the police are not required to shield their eyes as they pass homes if they do not have probable cause"