The Line Detection Method with Robustness against Contrast and Width Variation Applied in Gradient Vector Field

摘要

This paper proposes a new method of extracting lines characterized as long and narrow bright regions, or curvi- linear convex regions, in images. Generally, the contrast and the line width cause difficulty in extraction in ridgelines and skeletons. Therefore, this paper proposes the line con- vegence vector field model based on the intensity gradient vector field for a model of the curvilinear convex region. This model is independent of the contrast and the scale.