This aerial image display system is provided with: an image display device provided with image display equipment for displaying an image on a screen on the basis of an acquired image signal; an image forming member which forms a real image in the air from image light including the image displayed on the screen; a wavelength-selective reflecting member which has properties to transmit visible light and reflect invisible light, and which is disposed on the same side of the image forming member as the surface thereof onto which the image light is incident; and an image capturing device which receives invisible light reflected from an object to be detected that is performing an input operation with respect to the real image, and captures an invisible light image of the object to be detected. The image display device includes: an input operation determination unit which acquires, from the image capturing device, the captured image of the object to be detected, analyzes this image of the object to be detected, and thereby analyzes the input operation being performed by the object to be detected; a main control unit which outputs an operation control signal based on the input operation analyzed by the input operation determination unit; and an image generation unit which generates an image signal, which reflects the input operation, in accordance with the operation control signal, and outputs the generated image signal to the image display equipment. The wavelength-selective reflecting member is disposed at a position such that said real image is formed within the viewing angle of the image capturing device.
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