colmap 安装ubuntu20.04

环境配置： ubuntu20.04+CUDA10.2+eigen3.3.7+cmake3.16.3+ceres1.14

（亲测eiegn3.2不行）

先安装Ceres-Solver：Ceres-Solver 安装ubuntu20.04_weixin_54470372的博客-优快云博客

git clone https://github.com/colmap/colmap.git
cd colmap
git checkout dev
mkdir build
cd build
cmake ..
make -j12
sudo make install

1、git checkout dev
日志如下

$ git checkout dev
Already on 'dev'
Your branch is up to date with 'origin/dev'.

2、cmake

（1）遇到报错：Could not find FLANN

sudo apt-get install libpcl-dev pcl-tools

（2）报错：You must set CMAKE_CUDA_ARCHITECTURES to e.g.  'native', 'all-major', '70',   etc.

在CMakeLists.txt中添加set(CMAKE_CUDA_ARCHITECTURES "native")

2、make

报错：collect2: error: ld returned 1 exit status

发现都是undefined reference to `TIFF这样的问题

 参考：编译报错：undefined reference to `TIFFReadDirectory@LIBTIFF_4.0‘解决方法_wongHome的博客-优快云博客

从官网Index of /libtiff/下载tiff4.0.10的压缩包

mkdir cmakeBuild
cd cmakeBuild
cmake ..
make
sudo make intstall

详情：tiff+ubuntu20.04安装_weixin_54470372的博客-优快云博客

而后成功make

~/3dTracking/colmap-3.7/build$ make
[  2%] Built target flann
[ 22%] Built target graclus
[ 24%] Built target lsd
[ 26%] Built target pba
[ 30%] Built target poisson_recon
[ 34%] Built target sift_gpu
[ 36%] Built target sqlite3
[ 50%] Built target vlfeat
[ 94%] Built target colmap
[ 96%] Built target colmap_cuda
[ 96%] Linking CXX executable colmap
[100%] Built target colmap_exe

 3、make install

日志只放最后几行

-- Installing: /usr/local/lib/colmap/libvlfeat.a
-- Installing: /usr/local/lib/colmap/libcolmap.a
-- Installing: /usr/local/lib/colmap/libcolmap_cuda.a
-- Installing: /usr/local/bin/colmap
-- Set runtime path of "/usr/local/bin/colmap" to ""