Abstract: A state deduction unit (102) deduces a state presented in a photographed image (200). An analysis-method selection unit (105) selects as an analysis method for analyzing the photographed image (200), an analysis method from among a plurality of analysis methods, based on a deduced state which is the state deduced by the state deduction unit (102), required accuracy which is analysis accuracy required for analysis of the photographed image (200), and a constraint condition for analyzing the photographed image (200).

Abstract: A first estimation unit (23) estimates, on the basis of sensor data acquired from a sensor (42) allocated to a first position in a target space, a first congestion degree being a congestion degree about the first position. A second estimation unit (26) estimates a second congestion degree being a congestion degree about a second position, on the basis of the first congestion degree, the second position being a position on a travel route of a traveling object in the target space and being different from the first position. A third estimation unit (27) estimates a third congestion degree being a congestion degree about a third position which is neither the first position nor the second position in the target space, on the basis of the first congestion degree and the second congestion degree.