Thank you for downloading the USfM framework. The code allows to compute the uncertainty of Large scale SfM for COLMAP reconstructions. Created by: Michal Polic How to build: 1) Prerequisities - CMake (https://cmake.org) - Visual Studio on Windows (https://visualstudio.microsoft.com) - GCC on Linux - VCPKG (follow instructions on: https://github.com/Microsoft/vcpkg) - Git (we recommend to install: https://git-scm.com and https://sourceforge.net/projects/gitextensions/) - USfM (you can use GitExtensions - right clic in parent dir and use GitExt Clone ... ) How to build on Windows: 2) Download and build Ceres optimization solver using VCPKG (e.g., run: <path/to/vcpkg.exe> install ceres[suitesparse] --triplet x64-windows) 3) Use Cmake to create the project: 3.1) Create build dir in the project root dir 3.2) Run cmake-gui in build dir and setup the variables: - CMAKE_TOOLCHAIN_FILE = %VCPKG_ROOT%\scripts\buildsystems\vcpkg.cmake - VCPKG_TARGET_TRIPLET = x64-windows (the system variable VCPKG_ROOT have to be setup to the vcpkg root directory, any change of system variables is seen by programs after their restart) 3.3) [OPTIONAL] It is highly recommended to use some optimized BLAS and LAPACK library otherwise the code will be sllow. Please add: - MKL_INCLUDE_DIR = <path to MKL include, e.g., C:/Program Files (x86)/IntelSWTools/compilers_and_libraries_2019.4.245/windows/mkl/include> - MKL_LIBRARIES = <path to MKL libraries, use https://software.intel.com/en-us/articles/intel-mkl-link-line-advisor to select propper version> 3.4) To enable Matlab, check: USfM_BUILD_MEX = ON 3.5) Run "Configure" (don't forget to select win64 option) and "Generate" 4) Open the Visual Studio project, right clic on usfm root subroject in Solution Explorer and add in Properties > VC++ Directories > Library directories the path to compiler librearies (e.g. c:/Program Files (x86)/IntelSWTools/compilers_and_libraries_2017.4.210/windows/compiler/lib/intel64_win) 5) The Solution Explorer should contain: - usfm ... the main library - uncetainty ... executable application - [optional] usfm_mex ... the mex file for run from Matlab How to build on Linux: 1) Instal ceres acording: http://ceres-solver.org 2) Use Cmake to create the makefile in "build" directory, e.g., > cd usfm.github.io > mkdir build > cd build > cmake .. [OPTIONAL] you can setup the camke variables as in Windows version, see. 4.2, 4.3, 4.4. In command line use -D<name of the variable>=<value of the variable> to setup variables. 3) Build the makefile: > make