LU decomposition is a triangular decomposition approach of non-singularmatrix, and the digital image can be seen as a matrix.
LU分解是一种将非奇异矩阵进行三角分解的方法，而数字图像也可以看作矩阵。
2
Based on the original precise integration method, the problem that singularmatrix appears in non-homogeneous equation was discussed.
在原有精细积分法的基础上，对非齐次方程出现奇异矩阵的问题进行探讨。
3
Necessary cycle detection is added to avoid the singularmatrix appearing after gross error compensation,. Simulation results verify the effectiveness of modified algorithm.