Czech Sign Language Vocabulary

Michal Kopecký


ZNAK represents a vocabulary between Czech Language and Czech Sign Language. It was created at the Department of Software Engineering of Charles University. The aim of the project is providing both-way traslations between above mentioned languages together with animation of the sign language using virtual 3D avatar. The vocabulary allows searching for signs according to the transcription of the sign or its part in the notation, used by Faculty of Arts at Charles University, Prague. User can also search for visually similar signs.

Where to get it

ZNAK is a research project and is freely accessible. Users are welcome with their feedback.


Contact email:



Research group at the department:

Service-Oriented Systems Group

Supporting research projects and grants:

MSMT MSM0021620838


  • Ulrych J., Kopecký M.: Visual similarity in sign language, in SISAP 2008: First international workshop on similarity search and applications, Cancun, Mexico, IEEE, ISBN: 0-7695-3101-6, pp. 53-60, April 2008
  • Kopecký M.: Vyhledávání a porovnávání znaků českého znakového jazyka, in DATAKON 2007, Hotel Santon, Brno, Czech Republic, Masarykova Univerzita, ISBN: 978-80-7355-076-9, pp. 122-131, October 2007
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