PROBLEM TO BE SOLVED: To allow a user to use a three-dimensional image as more effective information transmission medium.SOLUTION: An information provide system comprises: an image reproduction part 11 that reproduces a three-dimensional image formed by corresponding accompanying information to one or more target, and makes an HMD 200 display; a target object detection part 12 that detects one or more target attended by a viewer in the three-dimensional image; a ranking part 13 that ranks the target object in order of the higher attention degree; and an accompanying information transmission part 14 that provides the accompanying information of the target object to a user terminal 400 in accordance with the ranking. When the accompanying information corresponded to the target object detected when the three-dimensional image is displayed in the HMD 200 is provided to the viewer through the user terminal 400 different from the HMD 200 after the reproduction of the three-dimensional image is finished or stopped, the detailed accompanying information related to the target to be attended during viewing the three-dimensional image can be provided to the viewer after removing the HMD 200.SELECTED DRAWING: Figure 2
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