Nippon Telegraph and Telephone Corporation

Shunsuke Konagai

Hitoshi Seshimo

Hiroshi Konishi

Hirofumi Abe

Chihiro Yamamoto

Yuki Kurauchi

Information relating to each link based on location information of a user can be generated with high accuracy even without measuring the location information at a high frequency. A map matching unit () associates location information of a moving user at each time with pedestrian network data () formed by a plurality of nodes and links connecting the nodes through a map matching process, and a calculation unit () calculates a passage record of a link of interest as link information based on whether or not the link of interest is connected to preceding and succeeding links in a link row acquired by aligning the links with which the location information is associated in order of times of pieces of the location information.

Link information generation method, link information generation device, and link information generation program

A delivery control device generates a recognition index on a notification space basis, the recognition index used to recognize the notification space, displays the recognition index in the notification space, and stores the recognition index in management information. The delivery control device instead stores an image characteristic extracted from a content to be displayed in the notification space as the recognition index in the management information. In this state, the delivery control device selects a notification space viewable on the augmented reality display terminal based on information on the position of the augmented reality display terminal held by a user and information on the position of the notification space and transmits the recognition index corresponding to the selected notification space and a notification content to the augmented reality display terminal. In response to the above, the augmented reality display terminal extracts the recognition index from the captured real-life video images and superposes the notification content in the position corresponding to the extracted recognition index in the real-life video images to generate and display augmented reality notification video images.

Augmented reality announcement information delivery system, and its delivery control apparatus, method, and program

A position where a user is located can be estimated easily and quickly. When a hold detection unitdetects that the user holds a mobile terminalby hand to use the mobile terminalthat is held by at least one hand of the user when used by the user and has a cameraon the surface facing the ceiling when used by the user, the estimation unitestimates a position where a ceiling is located as the position where the user is located by using an image of the ceiling captured by the camera

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Tokyo, Japan

Shunsuke Konagai