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AutoTracker workflow using GLOMAP
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| :: ================================================================ | |
| :: BATCH SCRIPT FOR AUTOMATED PHOTOGRAMMETRY TRACKING WORKFLOW | |
| :: By polyfjord - https://youtube.com/polyfjord | |
| :: GLOMAP mapping (faster), COLMAP for features/matching + TXT export | |
| :: ================================================================ | |
| @echo off | |
| setlocal EnableExtensions EnableDelayedExpansion | |
| :: ---------- Resolve top-level folder (one up from this .bat) ----- | |
| pushd "%~dp0\.." >nul | |
| set "TOP=%cd%" | |
| :: ---------- Key paths ------------------------------------------- | |
| set "SFM_DIR=%TOP%\01 GLOMAP" | |
| set "VIDEOS_DIR=%TOP%\02 VIDEOS" | |
| set "FFMPEG_DIR=%TOP%\03 FFMPEG" | |
| set "SCENES_DIR=%TOP%\04 SCENES" | |
| :: ---------- Locate ffmpeg.exe ----------------------------------- | |
| if exist "%FFMPEG_DIR%\ffmpeg.exe" ( | |
| set "FFMPEG=%FFMPEG_DIR%\ffmpeg.exe" | |
| ) else if exist "%FFMPEG_DIR%\bin\ffmpeg.exe" ( | |
| set "FFMPEG=%FFMPEG_DIR%\bin\ffmpeg.exe" | |
| ) else ( | |
| echo [ERROR] ffmpeg.exe not found inside "%FFMPEG_DIR%". | |
| popd & pause & goto :eof | |
| ) | |
| :: ---------- Locate glomap.exe ----------------------------------- | |
| if exist "%SFM_DIR%\glomap.exe" ( | |
| set "GLOMAP=%SFM_DIR%\glomap.exe" | |
| ) else if exist "%SFM_DIR%\bin\glomap.exe" ( | |
| set "GLOMAP=%SFM_DIR%\bin\glomap.exe" | |
| ) else ( | |
| echo [ERROR] glomap.exe not found inside "%SFM_DIR%". | |
| popd & pause & goto :eof | |
| ) | |
| :: ---------- Locate colmap.exe (DB + TXT export) ------------------ | |
| if exist "%SFM_DIR%\colmap.exe" ( | |
| set "COLMAP=%SFM_DIR%\colmap.exe" | |
| ) else if exist "%SFM_DIR%\bin\colmap.exe" ( | |
| set "COLMAP=%SFM_DIR%\bin\colmap.exe" | |
| ) else ( | |
| echo [ERROR] colmap.exe not found inside "%SFM_DIR%". | |
| popd & pause & goto :eof | |
| ) | |
| :: ---------- Put binaries on PATH -------------------------------- | |
| set "PATH=%SFM_DIR%;%SFM_DIR%\bin;%PATH%" | |
| :: ---------- Ensure required folders exist ------------------------ | |
| if not exist "%VIDEOS_DIR%" ( | |
| echo [ERROR] Input folder "%VIDEOS_DIR%" missing. | |
| popd & pause & goto :eof | |
| ) | |
| if not exist "%SCENES_DIR%" mkdir "%SCENES_DIR%" | |
| :: ---------- Count videos for progress bar ------------------------ | |
| for /f %%C in ('dir /b /a-d "%VIDEOS_DIR%\*" ^| find /c /v ""') do set "TOTAL=%%C" | |
| if "%TOTAL%"=="0" ( | |
| echo [INFO] No video files found in "%VIDEOS_DIR%". | |
| popd & pause & goto :eof | |
| ) | |
| echo ============================================================== | |
| echo Starting GLOMAP pipeline on %TOTAL% video(s) … | |
| echo ============================================================== | |
| set /a IDX=0 | |
| for %%V in ("%VIDEOS_DIR%\*.*") do ( | |
| set /a IDX+=1 | |
| call :PROCESS_VIDEO "%%~fV" "%%IDX%%" "%TOTAL%" | |
| ) | |
| echo -------------------------------------------------------------- | |
| echo All jobs finished – results are in "%SCENES_DIR%". | |
| echo -------------------------------------------------------------- | |
| popd | |
| pause | |
| goto :eof | |
| :PROCESS_VIDEO | |
| :: ---------------------------------------------------------------- | |
| :: %1 = full path to video %2 = current index %3 = total | |
| :: ---------------------------------------------------------------- | |
| setlocal EnableDelayedExpansion | |
| set "VIDEO=%~1" | |
| set "NUM=%~2" | |
| set "TOT=%~3" | |
| for %%I in ("%VIDEO%") do ( | |
| set "BASE=%%~nI" | |
| set "EXT=%%~xI" | |
| ) | |
| echo. | |
| echo [!NUM!/!TOT!] === Processing "!BASE!!EXT!" === | |
| :: -------- Directory layout for this scene ----------------------- | |
| set "SCENE=%SCENES_DIR%\!BASE!" | |
| set "IMG_DIR=!SCENE!\images" | |
| set "SPARSE_DIR=!SCENE!\sparse" | |
| :: -------- Skip if already reconstructed ------------------------- | |
| if exist "!SCENE!" ( | |
| echo • Skipping "!BASE!" – already reconstructed. | |
| goto :END | |
| ) | |
| :: Clean slate ---------------------------------------------------- | |
| mkdir "!IMG_DIR!" >nul | |
| mkdir "!SPARSE_DIR!" >nul | |
| :: -------- 1) Extract every frame -------------------------------- | |
| echo [1/4] Extracting frames … | |
| "%FFMPEG%" -loglevel error -stats -i "!VIDEO!" -qscale:v 2 ^ | |
| "!IMG_DIR!\frame_%%06d.jpg" | |
| if errorlevel 1 ( | |
| echo × FFmpeg failed – skipping "!BASE!". | |
| goto :END | |
| ) | |
| dir /b "!IMG_DIR!\*.jpg" >nul 2>&1 || ( | |
| echo × No frames extracted – skipping "!BASE!". | |
| goto :END | |
| ) | |
| :: -------- 2) Feature extraction (COLMAP) ------------------------- | |
| echo [2/4] COLMAP feature_extractor … | |
| "%COLMAP%" feature_extractor ^ | |
| --database_path "!SCENE!\database.db" ^ | |
| --image_path "!IMG_DIR!" ^ | |
| --ImageReader.single_camera 1 ^ | |
| --SiftExtraction.use_gpu 1 ^ | |
| --SiftExtraction.max_image_size 4096 | |
| if errorlevel 1 ( | |
| echo × feature_extractor failed – skipping "!BASE!". | |
| goto :END | |
| ) | |
| :: -------- 3) Sequential matching (COLMAP) ------------------------ | |
| echo [3/4] COLMAP sequential_matcher … | |
| "%COLMAP%" sequential_matcher ^ | |
| --database_path "!SCENE!\database.db" ^ | |
| --SequentialMatching.overlap 15 | |
| if errorlevel 1 ( | |
| echo × sequential_matcher failed – skipping "!BASE!". | |
| goto :END | |
| ) | |
| :: -------- 4) Sparse reconstruction (GLOMAP) ---------------------- | |
| echo [4/4] GLOMAP mapper … | |
| "%GLOMAP%" mapper ^ | |
| --database_path "!SCENE!\database.db" ^ | |
| --image_path "!IMG_DIR!" ^ | |
| --output_path "!SPARSE_DIR!" | |
| if errorlevel 1 ( | |
| echo × glomap mapper failed – skipping "!BASE!". | |
| goto :END | |
| ) | |
| :: -------- Export TXT **inside the model folder** ----------------- | |
| :: Keep TXT next to BIN so Blender can import from sparse\0 directly. | |
| if exist "!SPARSE_DIR!\0" ( | |
| "%COLMAP%" model_converter ^ | |
| --input_path "!SPARSE_DIR!\0" ^ | |
| --output_path "!SPARSE_DIR!\0" ^ | |
| --output_type TXT >nul | |
| ) | |
| :: -------- Export TXT to parent sparse\ (for Blender auto-detect) -- | |
| if exist "!SPARSE_DIR!\0" ( | |
| "%COLMAP%" model_converter ^ | |
| --input_path "!SPARSE_DIR!\0" ^ | |
| --output_path "!SPARSE_DIR!" ^ | |
| --output_type TXT >nul | |
| ) | |
| echo ✓ Finished "!BASE!" (!NUM!/!TOT!) | |
| :END | |
| endlocal & goto :eof |
Author
Hi @PaulPink - I'm not confident I can help, but I am using a flavour of Arch (Garuda).
What worked for me is the AUR package fails to build for a stupid reason, so I modified the PKGBUILD and got it installed that way.
See: bartoszek/AUR-colmap#9 (comment)
(where I set the number manually to 32, make sure to use a number that's no larger than the number of threads your CPU has)
I think once I had colmap working, the build instructions on the glomap github page worked for me
https://github.com/colmap/glomap?tab=readme-ov-file
Hi @Norgus, first of all, thank you very much for your reply.
Unfortunately, it didn't get me directly to my goal, but by analyzing the error with the help of our beloved AI, I was able to achieve my goal. I'll try to summarize it here.
The installation of Colmap, as described by you, worked perfectly. I only had to change the line
ninja -C “$srcdir/build” $(grep -oP -- ‘-+[A-z]+ ?[0-9]*’<<<“${MAKEFLAGS:--j1}”)
in PKBUILD with
ninja -C “$srcdir/build” -j$(nproc)
Then it got trickier. But that's where ChatGPT came in. The following answer made all the difference:
- Build with an older compiler
Since CachyOS uses extremely up-to-date packages, you can try installing an older gcc, e.g.:
sudo pacman -S gcc14
and then build with:
CC=gcc-14 CXX=g++-14 cmake .. -GNinja
This prevents the brand new C++17 standard from GCC 15 from breaking the old COLMAP code.
Now everything works.
I probably wouldn't have figured that out on my own.
So thank you again.
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Hi, could you perhaps give me a tip or a link on how to properly install Colmap + Glomap?
I use CachyOS (Arch) and haven't managed to build both together yet.
It keeps failing due to version conflicts and similar issues. Polyfiord's Windows method isn't possible, is it?