Ing. Ladislav Čmolík, Ph.D.

Assistant professor

Email: cmolikl [at]

Official page at DCGI

Profile at ResearchGate

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Department of Computer Graphics and Interaction (DCGI)
CTU in Prague

Karlovo náměstí 13
121 35 Prague 2
Czech Republic
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Building E, 4th floor
Room K418

Selected publications

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Balata J., L. Cmolik, and Z. Mikovec. On the selection of small and overlapping 2D objects. In Proceedings of the 32nd Annual ACM Conference on Human Factors in Computing Systems, CHI ’14, pages 2255–2258, New York, NY, USA, 2014, ACM.

Cmolik L. Interactive Illustrative Visualization of 3D Models. PhD thesis, Czech Technical University in Prague, 2011.

Cmolik L. and J. Bittner. Layout-aware optimization for interactive labeling of 3d models. Computers & Graphics, 34(4):378-387, 2010.

Mikovec Z., L. Cmolik, J. Kopsa, and P. Slavik. Beyond traditional interaction in a mobile environment: New approach to 3D scene rendering.Computers & Graphics, 30(5):714-726, 2006.

Selected projects

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VPHOP: Osteoporotic Virtual Physiological Human, FP7, ICT-223865


Position: Researcher

The aim of VPHOP is to develop a multiscale modelling technology based on conventional diagnostic imaging methods that makes it possible, in a clinical setting, to predict for each patient the strength of his/her bones, how this strength is likely to change over time, and the probability that the he/she will overload his/her bones during daily life. With these three predictions, the evaluation of the absolute risk of bone fracture will be much more accurate than any prediction based on external and indirect determinants, as is current clinical practice. These predictions will be used to:

  • Improve the diagnostic accuracy of the current clinical standards;
  • Provide the basis for an evidence-based prognosis with respect to the natural evolution of the disease, to pharmacological treatments, and/or to preventive interventional treatments aimed to selectively strengthen particularly weak regions of the skeleton.

Patients at high risk of fracture, and for which the pharmacological treatment appears insufficient, the VPHOP system will also assist the interventional radiologist in planning the augmentation procedure.

The various modelling technologies developed during the project will be validated not only in vitro, on animal models, or against retrospective clinical outcomes, but will also be assessed in term of clinical impact and safety on small cohorts of patients enrolled at four different clinical institutions, providing the factual basis for effective clinical and industrial exploitation.


Tiger (Toolkit for Interactive Graphics rendERing) is a Java library to ease development of multi-pass rendering effects in OpenGL. The library is accessing OpenGL API through JOGL. The source code and compiled library is available for download.

Design of Smart TV user interface

Within this research project the team designed user interface concept for Smart TV and developed prototype of the user interface. The work was done in cooperation with company Alnair a.s. within a framework of a research project funded by ministry of industry in Czech Republic. The user interface concept (adopted and implemented by Alnair a.s.) is now part of the user interface of O2 TV in Czech republic.