Get key frame

[TRINHHOANGANH]

Hi !!!

Question

How can I get key frame from key frame ID and save its to folder.

[ymd-stella]

Implemented at https://github.com/stella-cv/stella_vslam/tree/wip/output_keyframes.

[TRINHHOANGANH]

Can you show me your code that gets keyframes ?

[ymd-stella]

Read the code.

[ymd-stella]

• f409de1
• d9c6045

[meowmoewrainbow]

Hi @ymd-stella
I've also tried this code and it produced these bugs when I run make command

[ 63%] Building CXX object example/CMakeFiles/run_video_slam.dir/run_video_slam.cc.o
[ 64%] Linking CXX executable ../run_video_slam
/usr/bin/ld: CMakeFiles/run_video_slam.dir/run_video_slam.cc.o: in function `mono_tracking(std::shared_ptr<stella_vslam::system> const&, std::shared_ptr<stella_vslam::config> const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned int, unsigned int, bool, bool, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, double)':
run_video_slam.cc:(.text+0x11a7): undefined reference to `stella_vslam::system::get_keyframe_images() const'
collect2: error: ld returned 1 exit status
make[2]: *** [example/CMakeFiles/run_video_slam.dir/build.make:136: run_video_slam] Error 1
make[1]: *** [CMakeFiles/Makefile2:753: example/CMakeFiles/run_video_slam.dir/all] Error 2
make: *** [Makefile:141: all] Error 2

[ymd-stella]

If you are using OpenCV 4.*, CI passes, so you must be doing something wrong.

https://github.com/stella-cv/stella_vslam/actions/runs/3852598853/jobs/6564867502#step:4:208

[TRINHHOANGANH]

I save keyframe images to folder and this code creates transforms.json file. You can save all keyframes and their relationship( I think their relationship is graph).