In some aspects, a radio-frequency (RF) camera system includes a sensor assembly and a data processing system. The sensor assembly includes sensors supported at respective sensor locations. Each sensor is supported at one of the sensor locations and configured to detect RF signals from a field of view defined by the sensor assembly. Each sensor is configured to identify parameters of the RF signals detected by the sensor. The data processing system is configured to receive the parameters identified by the sensors and generate a graphical representation of the field of view based on the parameters.