Prof. Krzysztof Walczak attended The 20th International Conference on Virtual Systems and Multimedia VSMM 2014, which was held in Hong Kong from 9 to 12 December, 2014. During the conference prof. Walczak presented a paper entitled „Building Contextual Augmented Reality Environments with Semantics” (authors: Walczak, K., D. Rumiński, J. Flotyński). He also participated in four workshops preceding the VSMM conference: Workshop "Motion Capture MOCAMP", Workshop "Focus 3D Laser Scanning FARO", Aerial Dron Workshop, and Workshop "Use & Re-use of Data".