Provided are an image generation apparatus, image generation method and image generation program which are capable of displaying the relationship between a vehicle, et cetera, and an imaged image of the subject of monitoring in a manner intuitively comprehensible when displaying the monitoring subject, such as a vehicle, shop, surrounding area of a house, or street, by further comprising a movement information calculation unit for calculating movement information relating to a movement of an camera unit installation body based on either of viewpoint conversion image data generated by a viewpoint conversion unit, imaged image data expressing an imaged image, a spatial model, or mapped spatial data, and by a display unit displaying an image of an camera unit installation body model corresponding to the camera unit installation body and also movement information calculated by a movement information calculation unit.