OpenTLD (Tracking-Learning-Detection ) is an object tracking algorithm originally developed in MATLAB by Zdenek Kalal, the novel feature of the algorithm is the decoupling between the tracking and the detection algorithms unlike many algorithms where the tracking depends on the detected features of the object. This decoupling allowed the OpenTLD to outperform many algorithms.
You can find more info about the algorithm and Kalal here.
TLD has been released under GPL v3.0 allowing the open source community to invest more efforts in the algorithm, Georg Nebehay released a complete C++ implementation of OpenTLD relying on the powerful OpenCV library and based solely on open source libraries.
Find more info here and src code here.
What’s cool about Georg’s implementation is using cmake (cross-platform make) as a build system for the project allowing compiling over windows and linux easily, so here’s what you have to do to get OpenTLD working on the Raspberry Pi
- Install the dependencies
- libconfig++ (optional)
- Qt4 (optional)
$ sudo apt-get install libopencv-*
$ sudo apt-get install cmake
- Download the OpenTLD source code and unzip it .
- Generate the native linux makefile
$ cd $OPENTLD
$ mkdir ../build
$ cd ../build
$ cmake ../$OPENTLD -DBUILD_QOPENTLD=ON -DUSE_SYSTEM_LIBS=OFF
- Navigate with the terminal to the build directory
$ make (builds the project)
$ make install (builds and installs the project)
That’s it , you are good to go . You will find opentld executable in bin/
Just thought of posting some performance benchmarks ..
Tracking + learning : ~ 0.8 fps
Tracking only (switched off learning) : ~ 1.5 fps
4 responses to “OpenTLD Object tracking on Raspberry PI”
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Hey Hi! I have tested this on my raspberry pi using a usb camera and it worked just fine. The lag was horrible though! I also have the raspberry pi camera board with me. Will this OpenTLD also work with the raspicam?
I think it will work and may actually give better performance , just pass the /dev/whatever of the raspi cam to opentld when executing it.
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