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README.md

ORBSLAM24Windows

ORBSLAM2 Project 4(for) Windows Platform

Easy built orbslam2 by visual studio on windows of both debug and release mode

Thanks

Prerequisite

  1. OpenCV
  • Version is not required, but not too old. In this tutorial is 2.4.13.
  • Add YOUR_OWN_PATH\opencv\build; YOUR_OWN_PATH\opencv\build\x64\vc12\bin; to your environment variable "PATH", you can also add YOUR_OWN_PATH\opencv\build\x86\vc12\bin; if you want to bulid a x86 type application.
  1. Cmake
  • Version should at least be 2.8.
  1. Visual Studio
  • In this tutorial is VS2013(Corresponding to opencv's vc12).

So, we'll build a visual studio 2013 project of ORB_SLAM2 using cmake and then make a x64 app.

Steps

First, we'll compile the projects in Thirdparty folder.

DBoW2

  1. Open cmake-gui, select DBow2 folder as the source path and the DBow2/build folder as the binaries path.
  2. Click configure, select Visual Studio 12 2013 Win64(or your own) as the generator, click finish.
  3. After configure done, click Generate.
  4. Go to the DBow2/build folder, double click the DBoW2.sln to open the peoject.
  5. Build ALL_BUILD in either debug or release mode you want.
  6. After success build, the libraries will be in the lib folder of the DBow2 project source folder.

eigen

eigen is not need to be built

g2o

  1. Open cmake-gui, select g2o folder as the source path and the g2o/build folder as the binaries path.
  2. Click configure, select Visual Studio 12 2013 Win64(or your own) as the generator, click finish.
  3. After configure done, click Generate.
  4. Go to the g2o/build folder, double click the g2o.sln to open the peoject.
  5. Right click on the g2o project->Properties->C/C++->Preprocessor Definitions, add WINDOWS at the end row, click Apply and OK.
  6. Build ALL_BUILD in either debug or release mode you want. (Remind to repeat step 5 && Mode should be the same as DBoW2)
  7. After success build, the libraries will be in the lib folder of the g2o project source folder.

Pangolin

  1. Open cmake-gui, select Pangolin folder as the source path and the Pangolin/build folder as the binaries path.
  2. Click configure, select Visual Studio 12 2013 Win64(or your own) as the generator, click finish.
  3. After configure done, click Generate.
  4. Go to the Pangolin/build folder, double click the Pangolin.sln to open the peoject.
  5. Build ALL_BUILD in either debug or release mode you want. (Mode should be the same as DBoW2 && g2o).
  6. You'll get a error of "cannot open input file 'pthread.lib'", just ignore it.
  7. After success build, the libraries will be in the lib folder of the Pangolin project source folder.

ORBSLAM24Windows

  1. Open cmake-gui, select ORBSLAM24Windows folder as the source path and the ORBSLAM24Windows/build folder as the binaries path.
  2. Click configure, select Visual Studio 12 2013 Win64(or your own) as the generator, click finish.
  3. After configure done, click Generate.
  4. Go to the ORBSLAM24Windows/build folder, double click the ORB_SLAM2.sln to open the peoject.
  5. Choose either debug or release mode you want. (Mode should be the same as DBoW2 && g2o && Pangolin).
  6. Right click the ORB_SLAM2 project and then click generate.
  7. After success build, the libraries will be in the lib folder of the ORB_SLAM2 project source folder.

Applications

If you want to make apps, you can also build the mono-stero-RGBD projects provided.

Take mono_tum app as an example, you can follow the steps below.

  1. Go to the ORBSLAM24Windows/build folder, double click the ORB_SLAM2.sln to open the peoject.
  2. Choose either debug or release mode you want. (Build mode should be the same as DBoW2 && g2o && Pangolin && ORB_SLAM2).
  3. Right click the mono_tum project and then click generate.
  4. Download tum dataset sequence, for example freiburg2_desk
  5. Right click the mono_tum project and then click Property->Config Property->Debug, input three parameters (Usage: ./mono_tum path_to_vocabulary path_to_settings path_to_sequence, the first can be ignored in windows)
  • path_to_vocabulary In ORBSLAM24Windows/Vocabulary folder, unpack the tar, a .txt file
  • path_to_settings In ORBSLAM24Windows/Examples/Monocular folder, rgbd_dataset_freiburg2_desk corresponding to TUM2.yaml
  • path_to_sequence rgbd_dataset_freiburg2_desk folder path
  1. Run app, it'll take a few minutes to load the vocabulary dictionary, and then you'll get the result.

If you don't satisfied with the speed of loading dictionary, you can reference issue vocabulary convert to convert the txt vocabulary to bin vocabulary, it speeds up a lot.

The picture shows the result of mono TUM dataset.

ORBSLAM2_monoTUM

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