Corner detection operator based on LoG of edge contour
Xiaohong Zhang · Computer Engineering and Applications Journal · 2010
Corner is a significant local feature of object in digital image,and it can offer the vision feature of object in low vision level.Laplacian of Gaussian is lead into planar curves,and a corner detection operator based on LoG of edge contour is proposed.The geometric feature of LoG is discussed against Γ-corner and circumference models,and equivalence relation between the curvature and LoG norm of edge contour is also framed.Then,corner response function is defined as LoG norm of edge contour,and corners are constructed as the local extreme points of LoG norm.Experiments also demonstrate that proposed algorithm is efficient and stability compared with other operators.