Pioneer Corporation

Pioneer System Technologies Corporation

Takuya Hirose

Reiji Matsumoto

Hajime Adachi

Shunichi Kumagai

Masayoshi Suzuki

A map creation device includes a simple-ground-information creating unit, an on-ground-structure-information creating unit, and a map-information creating unit. The simple-ground-information creating unit creates, based on the ground object, a simple ground object expressing the three-dimensional shape with less amount of data than the ground object. The on-ground-structure-information creating unit creates, based on the simple ground object, an on-ground-structure object expressing a three-dimensional shape of an on-ground structure that is present on a surface of the ground by adding height information to a two-dimensional on-ground-structure object expressing a two-dimensional shape of the on-ground structure. The map-information creating unit creates map information in which the on-ground-structure object is superimposed on the ground object.

Map creation device and navigation device

A ground object is arranged so that it overlaps with a cylindrical object. Inside the cylindrical object, foot data of the ground object is arranged. Since the foot data on the side of a fore-end opening is positioned behind a fore-end face object with respect to view point coordinates, hidden surface removal is carried out for an image of the foot data on the side of the fore-end opening viewed from the view point coordinates by a Z value of a transparent drawn image of the fore-end face object.

Growing community of inventors

Saitama, Japan

Takuya Hirose