Patent Document ID: 8359156
Application ID: 12068296
Patent Status: 1

Claim One:
1. A non-transitory computer-usable storage medium having computer readable instructions stored thereon for execution by a processor to perform a method of generating a digital road map, the method comprising: using a least square method to extract feature points from a collected plurality of pieces of track data that are captured based on vehicle movement along a road and each include positional data; determining a lane central line of a lane along the road by calculating a Spline curve satisfying the extracted feature points; determining whether to update current map data of the digital road map based on a comparison of the number of pieces of track data with a predetermined threshold value and in response to a determination to update the current map data of the digital road map based on the comparison, writing a new map object for the road corresponding to the determined lane central line to the current map data of the digital road map to form updated map data.