An imaging device (100) as the imaging side includes: an imaging section (101) for performing imaging by using a CCD sensor, a CMOS sensor, or the like; an imaging limit signal reception section (102) for receiving an imaging limit signal transmitted from a communication terminal (200); and an imaging limit section (103) for limiting imaging performed by the imaging section (101) according to a request of an imaging limit signal. The communication terminal (200) as the object side includes an imaging limit signal generator (201) for transmitting the imaging limit signal for requesting an imaging limit.