Matti Karppa

I'm postgraduate researcher at Aalto University (former Helsinki University of Technology (HUT)) School of Science, department of Computer Science (former department of Information and Computer Science). I am currently pursuing a doctoral degree in algorithms under the guidance of Professor Petteri Kaski. The tentative title of the thesis is "Theory and Practice Below the Combinational Barrier", and I am trying to find faster-than-obvious ways to look up sets of objects with a particular property that they share together rather than individually, without having to look up all combinations of objects.

I graduated with MSc. from the same department in August, 2014. My master's thesis was about computer vision within sign language context. Using a synthetic 3D model, I tried to classify hand shapes from rather low-quality monocular video footage. The thesis is available here. My bachelor's thesis on model-based hand tracking methods in the context of sign language videos is available here (in Finnish only). Both of these theses were done within the context of Academy of Finland funded CoBaSiL project. I worked on sign language alongside my studies from 2010 to 2014. As a sideproduct, I developed a tool called SLMotion which serves as a framework for conducting computer vision experiments in sign language context.

If you have any questions, please do not hesitate to contact me! The easiest way would be to send e-mail to, but I can also be reached via Facebook, or IRCnet where I go by the handle 'localdoc'.