Abstract:The rigorous robust solution of lowaltitude sensor distortion parameters was proposed.Firstly,the initial parameters are obtained by 2D DLT,then the location of reference objects with gross or deviation is restrained by Huber algorithm.Finally,the rigorous solution of sensor distortion parameters is carried out by iterative computation with constrained condition.Experimental results show that the solution is reliable and practical,and the precision is higher than the bundle adjustment with unit weight or selecting weight iteration