| 摘要 |
PROBLEM TO BE SOLVED: To provide a camera calibration method and device that implement accurate camera calibration in real time, without requiring manual operation.SOLUTION: A field line image extraction unit 10 extracts a field line image from a camera image. A field line selection unit 20 recognizes a field line by extracting a line segment from the field line image, classifies respective field lines into one and the other field line groups crossing each other, and evaluates respective field lines for each field line group. A corresponding point setting unit 30 sets a corresponding point on the basis of an intersection point formed by highly evaluated field lines. A homography matrix determination unit 40 determines a homography matrix on the basis of set corresponding points. A camera calibration calculation unit 50 performs camera calibration on the basis of the homography matrix and an internal parameter of a camera.SELECTED DRAWING: Figure 2 |
