Title : 
Multi Layer Sector Operators for Image Gradient Estimation
         
        
            Author : 
Xiao, Bin ; Zhang, Guomin
         
        
        
        
        
        
            Abstract : 
A series of multi layer sector operators are presented for image gradient estimation in edge detection. Replacing the gradient estimation method in canny operator by the multi layer sector operators, a novel edge detection method is obtained, which is more robust to noise and has more accurate edge localization, especially when a corner or a cross exists. Both synthetic and natural images validate our methods.
         
        
            Keywords : 
Detectors; Estimation; Image edge detection; Junctions; Kernel; Signal to noise ratio; edge detection; image gradient; multi layer sector operators;
         
        
        
        
            Conference_Titel : 
Computational and Information Sciences (ICCIS), 2011 International Conference on
         
        
            Conference_Location : 
Chengdu, China
         
        
            Print_ISBN : 
978-1-4577-1540-2
         
        
        
            DOI : 
10.1109/ICCIS.2011.179