ROAD VIDEO IMAGE ANALYZING DEVICE AND ROAD VIDEO IMAGE ANALYZING METHOD

摘要

In a road image analyzing apparatus capable of obviously and rapidly distinguishing a road marking from a guardrail and capable of obtaining precise position information, a pre-processing unit (28) defines sub-areas to main image data obtained by an image pickup unit (26), and an edge extracting unit (30) extracts an edge component in each of the sub-areas. A linear line extracting unit (32) analyzes the extracted edge component to extract a linear component, and a linear component analyzing unit (34) extracts a continuous component from the linear component by using the linear component. A matching process unit (36) performs a matching process between a vertex of the continuous component and auxiliary image data to obtain three-dimensional position information of each continuous component. An identifying unit (40) identifies whether the continuous component is a road marking or a guardrail on the basis of height information of each continuous component included in the three-dimensional position information.