1. Laboratory of Signal and Image Processing; Institute of Complex Systems; South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses; Faculty of Fisheries and Protection of Waters; University of South Bohemia in České Budějovice; Nové Hrady Czech Republic
2. Department of Soil Science and Soil Protection; Faculty of Agrobiology, Food and Natural Resources; Czech University of Life Sciences Prague; Prague Czech Republic