CMake OpenCV4.2 SFM模塊(Windows 10, VS2017)

    環境：Win10, OpenCV4.2，VS2017, CMake 3.9.1

    參考鏈接：https://blog.csdn.net/fanhao900322/article/details/78787712

                     https://blog.csdn.net/wzheng92/article/details/79504709 

    ① GFlags編譯，源碼鏈接：https://github.com/gflags/gflags/tree/v2.2.2

 

 

 

ALL_Build之後，Install僅用於項目生成，生成文件目錄如下：

C:/Program Files/gflags/lib/gflags_static.lib
C:/Program Files/gflags/lib/gflags_nothreads_static.lib
C:/Program Files/gflags/include/gflags/gflags.h
C:/Program Files/gflags/include/gflags/gflags_declare.h
C:/Program Files/gflags/include/gflags/gflags_completions.h
C:/Program Files/gflags/include/gflags/gflags_gflags.h
C:/Program Files/gflags/lib/cmake/gflags/gflags-config.cmake
C:/Program Files/gflags/lib/cmake/gflags/gflags-config-version.cmake
C:/Program Files/gflags/lib/cmake/gflags/gflags-targets.cmake
C:/Program Files/gflags/lib/cmake/gflags/gflags-targets-release.cmake
C:/Program Files/gflags/lib/cmake/gflags/gflags-nonamespace-targets.cmake
C:/Program Files/gflags/lib/cmake/gflags/gflags-nonamespace-targets-release.cmake

    ② glog編譯：源碼鏈接：https://github.com/google/glog/tree/v0.4.0

    需要依賴上一步生成的GFlags Install目錄，然後同樣VS2017生成，Install生成文件目錄：

C:/Program Files/glog/lib/glog.lib
C:/Program Files/glog/include/glog/logging.h
C:/Program Files/glog/include/glog/raw_logging.h
C:/Program Files/glog/include/glog/stl_logging.h
C:/Program Files/glog/include/glog/vlog_is_on.h
C:/Program Files/glog/include/glog/log_severity.h
C:/Program Files/glog/lib/cmake/glog/glog-config.cmake
C:/Program Files/glog/lib/cmake/glog/glog-config-version.cmake
C:/Program Files/glog/lib/cmake/glog/glog-targets.cmake
C:/Program Files/glog/lib/cmake/glog/glog-targets-release.cmake

    ③ Eigen3.3.7編譯，源碼鏈接：https://gitlab.com/libeigen/eigen/-/releases

ALL_Build之後，Install僅用於項目生成，生成文件目錄C:/Program Files/Eigen3/include/eigen3...

    ④ Suitesparse編譯，源碼鏈接：https://github.com/jlblancoc/suitesparse-metis-for-windows/tree/v1.5.0

    ⑤ Ceres-solver編譯，鏈接https://ceres-solver.googlesource.com/ceres-solver/+/refs/tags/1.13.0

        點擊【tgz】下載，下載後需要解壓兩層才能獲得Ceres源代碼

    ⑥ OpenCV編譯，需要配置前面幾個路徑，可以參考以下三個鏈接，相信你可以搞定了

         https://blog.csdn.net/wzheng92/article/details/79504709

         https://www.jianshu.com/p/89a5705f0941    

         https://blog.csdn.net/fanhao900322/article/details/78787712

     

    使用的時候注意添加opencv_sfm420.lib

    還可能會遇到一個問題，就是提示reconstruct函數無法識別的標識符，解決方法在#include <opencv2/sfm.hpp>前

添加#define CERES_FOUND 1

    接下來運行一個實例，代碼見官方文檔https://docs.opencv.org/master/d4/d18/tutorial_sfm_scene_reconstruction.html

注意運行時將前面生成的dll都複製過來或者加到環境變量(推薦)

運行生成的點雲感覺很稀疏，和官方結果不一樣，需要再研究研究問題在哪