Proceedings of ISPA 2013 : 8th International Symposium on Image and Signal Processing and Analysis, Trieste, Italy, September 4-6, 2013 - Ramponi, Gianni; Lončarić, Sven; Carini, Alberto; Egiazarian, Karen; International Symposium on Image and Signal Processing and Analysis (Zagreb [Croatia] ; Trieste [Italy] : University of Zagreb : University of Trieste, 2013)