Abstract��Estimation of seven��parameter model by non��iterative method is relatively stable��but accuracy is lower; accuracy of estimation by iterative method is higher��but its iteration convergence is vulnerable to the initial value.A method estimating seven��parameter model by the combination of non��iterative with iterative method was proposed.The new method resolves the problem that the iterative methods is unsuitable for large rotation angle.Convergence in estimation by the new method is fast and accuracy is higher��and it can be applied to cartesian coordinate with arbitrary conversion because of not required initial values.The checking calculation for some cases proves the method is correct and effective.
Tan Junxiang,Li Shaoda,Yang Ronghao. STUDY ON SEVEN-PARAMETER COORDINATE TRANSFORMATION ��
MODEL BASED ON COMBINED ESTIMATION OF NON-ITERATION ��
AND ITERATION[J]. jgg, 2014, 34(1): 131-134.
