| 摘要 |
PROBLEM TO BE SOLVED: To provide a 'lane mark detector and a reliability calculation method of lane mark' capable of calculating reliability in consideration of position accuracy of a lane mark as well as suppressing erroneous alarm of lane deviation without increasing calculation loads.SOLUTION: A lane mark detector includes: a shape evaluation value calculation part 11 which calculates a shape evaluation value regarding whether or not a subject has the shape of a lane mark; a distance evaluation value calculation part 12 which calculates a distance evaluation value regarding field distance; and a reliability calculation part 13 which calculates reliability of the lane mark based on the shape evaluation value and the distance evaluation value, and is constituted so that the reliability according to the field distance, which becomes a factor for affecting detection position accuracy of the lane mark is calculated by calculating the reliability based on the evaluation value regarding the field distance in addition to the evaluation value regarding the shape of the lane mark, and a calculation load of the reliability becomes small in comparison with a system for dividing a photographed image into areas to vary the reliability for every area. |
