IP3 2019-Navigation 5

This lot is generally related to location determination of a navigation device. Techniques are disclosed to precisely locate a navigation device using known positions of road signs to augment GPS coordinate data by obtaining recent GPS coordinate data and a real time image of surroundings, captured by the navigation device. The system analyzes captured images to recognize the road sign and uses a known position of the road sign to augment recent coordinate data. The technology may be implemented in navigation devices, navigation services, map services, mobile APPs, etc.