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PTAM Compilation on Linux-HowTo

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The README.txt file shipped with the newest PTAM source code is really old (the cvs repositorys are gone for god’s sake) ! I struggled to get it done on my Linux Mint 15 with totally failure:–(

However I made it with just pulling the bleeding edge libs(I mean TooN,libCVD and Gvars3) from github, add a header file <unistd.h> to Tracker.cc, edit the Makefile about the linker flags(I will tell the details below), and I absolutely think that ‘share my experience to you’ is my duty.

I succeeded on Linux Mint 15 and Ubuntu 12.04, other distros won’t be hard either:–)

Now, let’s start the journey!

Installation the required dependencies

Note the versions of the installed packages may differ from distros and versions of the same distro, just choose the ones suitable for you!

Build Tools

sudo apt-get update
sudo apt-get install build-essential cmake pkg-config

Boost for C++

sudo apt-get install libboost-dev libboost-doc

Low level libraries for Linear Algebra

sudo apt-get install liblapack-dev libblas-dev

Image I/O && Camera Driver

sudo apt-get install libjpeg-dev libpng-dev libtiff-dev libdc1394-22-dev libv4l-dev 

Video I/O && Codec && Display

sudo apt-get install libavcodec-dev libavformat-dev libavutil-dev libpostproc-dev libswscale-dev libavdevice-dev libsdl-dev
sudo apt-get install libgtk2.0-dev libgstreamer0.10-dev libgstreamer-plugins-base0.10-dev 

OpenGL

sudo apt-get install mesa-common-dev libgl1-mesa-dev libglu1-mesa-dev freeglut3-dev

Installation of OpenCV

cd thePathYouWant
wget http://downloads.sourceforge.net/project/opencvlibrary/opencv-unix/2.4.6.1/opencv-2.4.6.1.tar.gz
tar zxvf opencv-2.4.6.1.tar.gz
cd opencv-2.4.6.1/
mkdir release 
cd release
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
make
sudo make install

You may want to alert the system about the new installed OpenCV libs,

vi /etc/ld.so.conf
add `include /usr/local/lib`
sudo ldconfig

Do this if you mannualy install other libraries when running into problems(as libcvd and Gvars3 discussed below).

After this, OpenCV dependencies can now be linked with simply: pkg-config opencv --cflags --libs

Really cool, huh?

Installation of TooN && libCVD && Gvars3

You may want to get the source code by just pulling from github like this:

#!/bin/bash
echo " Now pulling TooN..."
git clone git://github.com/edrosten/TooN.git
echo " TooN done for good!"

echo " Now pulling libcvd..."
git clone git://github.com/edrosten/libcvd.git
echo " libcvd done for good!"

echo " Now pulling gvars3..."
git clone git://github.com/edrosten/gvars.git
echo " gvars3 done for good!"

echo " All done."

If this confuses you, just download the package like this:

cd thePathYouWant
wget http://www.edwardrosten.com/cvd/TooN-2.1.tar.gz
wget http://www.edwardrosten.com/cvd/libcvd-20121025.tar.gz
wget http://www.edwardrosten.com/cvd/gvars-3.0.tar.gz

Note the versions may differ as time goes by, use git if you can Or just look at this link for more details.

Also remember do refer to the README files when you try to install the libraries, cause they really do help in some manner:–)

TooN

Just header files, easy to install huh?

./configure && make && sudo make install

libCVD

Remember that libCVD really needs TooN, or you will get stuck when trying to compile PTAM:–(

The steps I used is like this:

./configure --without-ffmpeg --without-v4l1buffer --without-dc1394v1 --without-dc1394v2
make
sudo make install

If you run into problems, check the output of ./configure carefully, they will give you some hints:–)

Gvars3

This is also easy, like this:

./configure --disable-widgets
make
make install

Make the libs work

sudo ldconfig

Compilation of PTAM

Now comes the real part of our journey, refer to the README.txt file for details.

Copy the appropriate platform build files

cd PTAM
cp Build/Linux/* .

Edit the Makefile to reference custom include or linker paths

LINKFLAGS = -L /usr/local/lib -lGvars3 -lcvd -lGLU -lGL -llapack

/usr/local/lib is my custom linker path.

Make the Video Source right

  • VideoSource_Linux_DV.cc
  • VideoSource_Linux_V4L.cc
  • VideoSource_Linux_Gstreamer_File.cc
  • VideoSource_Linux_OpenCV.cc

The first two are for camera capturing and the last twos are shipped with BeLioN-github/PTAM and can be used to serve images from video files.

Make

Probably an error will popup, like “error, usleep was not declared in this scope”, easily add

#include <unistd.h>

to Tracker.cc and you are done:–)

Just

make

and enjoy!

Acknowledgement

Definitely special thanks will go to Georg Klein, the author and PTAM! Good job, Georg!

I also refered to several posts while struggling,

Hope this post will do some help and if you find any mistake in my blog, please do leave your comment or drop me a line:–)

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