Abstract: Provided are a method and apparatus for estimating a center line of an intersection by recognizing a crosswalk on a road input through a camera installed in a vehicle. The apparatus includes a road information providing unit which provides information about a road being traveled based on location information of a traveling vehicle; a crosswalk recognizing unit which recognizes a crosswalk based on an input image of the intersection and the information about the road and obtains a distance from the traveling vehicle to the crosswalk; and an intersection center line estimating unit which estimates the center line of the intersection based on the information about the road and the distance from the traveling vehicle to the crosswalk.

Abstract: A method and apparatus for alerting a driving state of a vehicle is provided. The method of alerting about a driving state of a vehicle includes: identifying an adjacent vehicle from a photographed image and extracting identification information about the adjacent vehicle; determining whether the adjacent vehicle approaches based on the identification information; and alerting a driver of the vehicle about a hazard due to the adjacent vehicle approaching, when the adjacent vehicle approaches.

Abstract: Provided are a method and apparatus for estimating a center line of an intersection by recognizing a crosswalk on a road input through a camera installed in a vehicle. The apparatus includes a road information providing unit which provides information about a road being traveled based on location information of a traveling vehicle; a crosswalk recognizing unit which recognizes a crosswalk based on an input image of the intersection and the information about the road and obtains a distance from the traveling vehicle to the crosswalk; and an intersection center line estimating unit which estimates the center line of the intersection based on the information about the road and the distance from the traveling vehicle to the crosswalk.

Abstract: Provided is a system for providing 3-dimensional (3D) vehicle information with a predetermined viewpoint by grasping circumstances such as other vehicles and road facilities in an outside of a user's vehicle, and a method thereof. The system includes: an internal sensing unit for acquiring raw material data used to determine a location of the user's vehicle; an external sensing unit for acquiring raw material data; a storing unit for storing coordinates of roads and major road facilities, and relationship between user's vehicle and the road or the major road facilities; an inferring unit for operating, determining object information and inferring a relationship between vehicles; a rendering unit for reorganizing object data including user s vehicle information determined in the inferring unit in a 3D graphic form; and an output unit for outputting 3D graphic data reorganized in the rendering unit to an output device.