| 摘要 |
To improve map accuracy by a new method that represents a road exit, there is provided a map generating apparatus for drawing a road map from digital data of a road map and a photographic image of a region that includes a region depicted by the road map, in which: a provided photographic image and a provided road map are geographically aligned with each other; a start point and an end point of an exit line which separates a main road and a branch road are extracted from the aligned photographic image; an exit line connecting the extracted start point and the extracted end point is determined; and a position of an exit branch is identified based on the determined exit line.
|
