A Sample-variance Based Weight Accumulation Method for Hough Transforms
Liang Yan · Control Engineering of China · 2005
A weighted accumulation method is proposed. The weights of each cell's votes are determined based on the sample variance of that cell and its neighbors. Its main idea is that it is more possible for an estimated parameter corresponding to the cell with narrower sample dispersion and more vote-points to be the actual parameter. Simulation results show that our method not only significantly improves the cell separability but also has stronger robustness to measurement noise and clutters compared with binary accumulation.