# OpenMVG/OpenMVS MvgMvsPipeline.py

###### tags: `OpenMVG` `OpenMVS` `point clouds`

Create Date: August 31, 2022
Latest Update: August 31, 2022
Tags: OpenMVG, OpenMVS, Ubuntu

# Terminal命令

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python MvgMvsPipeline.py <images_folder> <output_folder>
e.g. python3 MvgMvsPipeline.py /home/user/Desktop/test/images /home/user/Desktop/test/output_folder

開始之前先紀錄以下兩個資歷夾的路徑

1. openMVS binary folder?
`/home/user/openMVS_build/bin`
bin資料夾(binary folder)裡面存放的都是OpenMVS提供的各項功能Function
1. Viewer (用來檢視3D模型的視窗)
2. DensifyPointCloud (對基礎點雲進行upsamplling)
3. ReconstructMesh (對upsampling後的點雲進行表面重建)
4. RefineMesh (優化初步重建的表面)
5. TextureMesh (將材質覆蓋上模型)
6. InterfaceCOLMAP (目前不會用)
7. InterfaceMetashape (目前不會用)
2. openMVG camera database (sensor_width_camera_database.txt) folder?
`/home/user/openMVG/src/openMVG/exif/sensor_width_database`
sensor_width_camera_database.txt 所在位置的資料夾
sensor_width_camera_database.txt 是OpenMVG自己的database，用來拍攝的相機必須要是在這個list裡面才可以

[sensor_width_camera_database.txt](OpenMVG%20OpenMVS%20MvgMvsPipeline%20py%20122ea69691664d1da6cc0d1b06546d13/sensor_width_camera_database.txt)

[https://github.com/openMVG/openMVG/issues/790](https://github.com/openMVG/openMVG/issues/790)

# 執行結果

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[success_pipeline_process_full_review.txt](OpenMVG%20OpenMVS%20MvgMvsPipeline%20py%20122ea69691664d1da6cc0d1b06546d13/sucess_pipeline_process_full_review.txt)

執行MvgMvsPipeline.py就會自動執行下列18個動作，Terminal完整執行message可以查看上面”success_pipeline_process_full_review.txt”

| Step | Describes | Function |
| --- | --- | --- |
| 0 | Intrinsics analysis | openMVG_main_SfMInit_ImageListing |
| 1 | Compute features | openMVG_main_ComputeFeatures |
| 2 | Compute pairs | openMVG_main_PairGenerator |
| 3 | Compute matches | openMVG_main_ComputeMatches |
| 4 | Filter matches | openMVG_main_GeometricFilter |
| 5 | Incremental reconstruction | openMVG_main_IncrementalSfM |
| 6 | Global reconstruction | openMVG_main_GlobalSfM |
| 7 | Colorize Structure | openMVG_main_ComputeSfM_DataColor |
| 8 | Structure from Known Poses | openMVG_main_ComputeStructureFromKnownPoses |
| 9 | Colorized robust triangulation | openMVG_main_ComputeSfM_DataColor |
| 10 | Control Points Registration | ui_openMVG_control_points_registration |
| 11 | Export to openMVS | openMVG_main_openMVG2openMVS |
| 12 | Densify point-cloud | DensifyPointCloud |
| 13 | Reconstruct the mesh | ReconstructMesh |
| 14 | Refine the mesh | RefineMesh |
| 15 | Texture the mesh | TextureMesh |
| 16 | Estimate disparity-maps | DensifyPointCloud |
| 17 | Fuse disparity-maps | DensifyPointCloud |