In the free-viewpoint image generation method, a display device (103) displays location information indicating a first location of a free-viewpoint image generation target and first time information indicating a first time zone of a free-viewpoint image generation target (103). (S301), the first image taken at the first place in the first time zone is transmitted to the display device (103) (S302), and is selected by the display device (103) using the first image. The designated time information indicating the designated time included in the first time zone is received from the display device (103) (S303), a free viewpoint image at the designated time of the first place is generated (S304), and the free viewpoint is generated. The image is transmitted to the display device (103) (S305).
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