distortion
代码说明：
一种利用图像中直线特征的方法来标定摄像机畸变参数的方法。该方法提取图像中多组不同方向的平行直线，并对其利用非线性最小二乘方法进行优化以得到最优的畸变参数，在优化过程中，采用多步渐进的策略。该方法不需要已知三维世界坐标，易于实现。实验表明，该方法有较高的准确率。(A camera lens distortion method is proposed, which uses the straight line features. Many parallel lines of different direction were extracted, and then were used to optimize the distortion parameters by nonlinear least square. The thought of step by step was added when the optimization method working. 3D world coordination is not need to know, and the method is easy to implement. The experiment result shows its high accuracy.)
文件列表：
distortion
..........\canny.m,2333,2006-04-30
..........\crookedness.m,3180,2007-01-14
..........\distort_main.m,2559,2012-09-04
..........\drawedgelist.m,2468,2007-05-03
..........\edgelink.m,7646,2006-04-30
..........\edgelistlenscorrect.m,2620,2006-04-29
..........\edgelist_lenscorrect.m,938,2007-01-16
..........\fitline.m,3152,2006-04-30
..........\hysthresh.m,2218,2006-04-30
..........\imlenstransform.m,6882,2007-01-15
..........\implace.m,2927,2006-04-30
..........\imwritesc.m,1641,2006-04-30
..........\lensparam.m,8712,2007-01-15
..........\Lens_Parameter.m,5715,2007-05-03
..........\lineseg.m,4398,2006-04-30
..........\maxlinedev.m,2110,2006-04-30
..........\mergeseg.m,5640,2006-04-30
..........\nonmaxsup.m,6586,2006-04-30
..........\removenan.m,1035,2006-04-30
..........\show.m,3345,2006-04-30
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