초록 ▼

In a digital map data processing device and a digital map data processing method which are useful to generate an accurate road map and particularly can be used for navigation and control of traveling vehicles according to the generated road map, a map image processing station 16 acquires image data

In a digital map data processing device and a digital map data processing method which are useful to generate an accurate road map and particularly can be used for navigation and control of traveling vehicles according to the generated road map, a map image processing station 16 acquires image data of the ground surface through a satellite communication station 14, and an image processing section 20 converts the image data into orthoimage data which is viewed substantially from directly above and free from distortion. A data extraction section 22 extracts a skeleton map (road network data) formed of roads and related stereoscopic information according to the orthoimage data, a data conversion section 24 calculates base road data from the skeleton map, and a map generation section 28 overlays necessary attribute data to generate highly accurate digital orthomap data free from a distortion. The digital orthomap data is sent to a vehicle 18 through a transmission section 30 and used for navigation control and running control.

대표청구항 ▼

1. A digital map data processing device, comprising:an image data acquiring unit configured to obtain image data of the ground surface captured from a high point of view; an image processing unit configured to convert the image data into orthoimage data viewed substantially from directly above; a da

1. A digital map data processing device, comprising:an image data acquiring unit configured to obtain image data of the ground surface captured from a high point of view; an image processing unit configured to convert the image data into orthoimage data viewed substantially from directly above; a data extraction unit configured to extract road network data of the ground surface on the basis of the orthoimage data; a data conversion unit configured to convert the road network data into a data format corresponding to a predetermined digital road map; and a map generating unit configured to generate digital orthomap data by overlaying the converted road network data on the predetermined digital road map.