| 摘要 |
A method for determining a critical distance for map matching, and a map matching method and apparatus using the same are provided to effectively match the current position on the map by using a conventional map matching algorithm. A map is divided into plural cells(S22). Attribute information of a road, which is included in the respective cells, is searched(S23). A critical distance for map matching for every cell, is assigned according to the attribute information of road. The map is divided so that the respective cells are accessed by a binary shift scheme. The map is divided in a matrix type and assigned with a cell code where an adjacent cell has one code value difference in the same column and an adjacent cell has a 2^N code value difference in the same row of respective cells or the adjacent cell has one code value difference in the same row and an adjacent cell has a 2^M code value difference in the same column of the respective cells. |
