This code extracts the local Manhattan World rotation and segmentation from depth images in real-time. Here is a demo video for three different RGB-D sequences:

If you are using this code for your research please cite

Real-time Manhattan World Rotation Estimation in 3D (Julian Straub,
Nishchal Bhandari, John J. Leonard, John W. Fisher III), In IROS, 2015.

This code depends on the following other libraries and was tested under Ubuntu 14.04.

• pcl 1.7 (and vtk 5.8)
• Opencv 2 (2.3.1)
• Eigen3 (3.0.5)
• cuda 5.5 or 6.5
• Boost (1.52)

The GPU kernels were tested on a Nvidia Quadro K2000M with compute capability 3.0.

Once you have those dependencies in place run

make checkout && make configure && make 

This will checkout dependencies from some of my other repositories (jsCore, mmf, cudePcl) and compile everything to ./build/

After installing the library try running the following to infer the MF of a simple scene following the Manhattan World assumption:

./pod-build/bin/realtimeMF -i data/MIT_hallway_1_d.png -o MIT_hallway_1 -d

There will be a results .csv file with the rotation of the MF and an image overlaying the segmentation on top of the gray-scale image of the scene.

libcudaPcl.so collects all the cuda code into one shared library. The rest of the code is in the form of header files.

• realtimeMF: infers the Manhattan Frame rotation and implied scene segmentation in real-time from depth images. If no input is specified via '-i', the program uses openni to grab frames from a connected RGB-D camera. The different modes refer to the different underlying models as described in the paper (see reference above).

Allowed options:
  -h [ --help ]         produce help message
  -m [ --mode ] arg     mode of the rtmf (direct, approx, vmf)
  -i [ --in ] arg       path to input file
  -o [ --out ] arg      path to output file
  -d [ --display ]      display results
  -B [ --B ] arg        B for guided filter
  -T [ --T ] arg        number of iterations
  --eps arg             eps for guided filter
  -f [ --f_d ] arg      focal length of depth camera
  --nCGIter arg         max number of CG iterations
  --dt arg              steplength for linesearch
  --tMax arg            max length for linesearch

• realtimeMF_lcm: same as realtimeMF except that the RGB-D frames are obtained as LCM (https://github.com/lcm-proj/lcm) messages.

Allowed options:
  -h [ --help ]         produce help message
  -m [ --mode ] arg     mode of the rtmf (direct, approx, vmf)
  -o [ --out ] arg      path to output file
  -d [ --display ]      display results
  -B [ --B ] arg        B for guided filter
  -T [ --T ] arg        number of iterations
  --eps arg             eps for guided filter
  -f [ --f_d ] arg      focal length of depth camera
  --nCGIter arg         max number of CG iterations
  --dt arg              steplength for linesearch
  --tMax arg            max length for linesearch