高斯拟合亚像素边缘程序

subpixel edge detection a lgo rithm based on function curve fitting, G auss fitting o f gradient d irec tion subpix el edge detec tion

a lgor ithm w as proposed. T his m ethod firstly chosed a series o f po ints near the edge, then got the grey level o f these points,

and then tried to g et the grad ient lev el of these points. Then G auss curves w ere used to fit the g rad ient leve ls of these po ints.

exper im enta l results show that th is a lgo rithm can lo ca lize the subp ixe l edge position accurately. T he com parision w ith other

two algor ithm s show s that the running tim e of th is a lgor ithm is sho rter, and the efficiency is relative ly h igher.