鱼眼相机去畸变和矫正

基于smart3D计算完空三进行导出opt文件

xx.opt文件，类似于xml文件

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<OpticalProperties version="1.0"><Id>0</Id><Name>201空三任务_1_图书馆-BackLeft</Name><Description></Description><Directory></Directory><ImageDimensions><Width>5328</Width><Height>4608</Height></ImageDimensions><CameraModelType>Fisheye</CameraModelType><CameraModelBand>Visible</CameraModelBand><SensorSize>14.60000000</SensorSize><FocalLength>5.88054727</FocalLength><PrincipalPoint><X>2679.93038561</X><Y>2305.20705337</Y></PrincipalPoint><Distortion><K1>-0.00120014</K1><K2>0.00239908</K2&g