A precise extraction algorithm of 2-D GCD is proposed.Since no high order ill-posed equation is needed, calculation complexity and noise robustness for the algorithm are improved.

• 该文发展了一种2-D公共因子精确提取算法，该算法不需要构建原算法中高阶病态方程，其复杂度大大降低，且提高了对噪声的鲁棒性。