[Object] To process an image captured by a camera mounted on a moving object device or a user to be suitable for display on an image display device fixed to the head or face of the user.[Solution] The image rendering processor 1042, in the beginning, corrects the user's head posture angle qh using the camera posture angle qc (F1421), and clips a display angle of view depending on the corrected user's head posture angle qh* from the captured image to render a free viewpoint image (F1422). Then, the image processing device 1040 transmits the free viewpoint image rendered by the image rendering processor 1042 to the display device 1020 via the communication unit 1041, and the image is displayed on the display device 1020 (F1430).