Title :
Why inverse F-transform? A compression-based explanation
Author :
Kreinovich, Vladik ; Perfilieva, Irina ; Novak, Vilem
Author_Institution :
Dept. of Comput. Sci., Univ. of Texas at El Paso, El Paso, TX, USA
Abstract :
In many practical situations, e.g., in signal processing, image processing, analysis of temporal data, it is very useful to use fuzzy (F-) transforms. In an F-transform, we first replace a function x(t) by a few local averages (this is called forward F-transform), and then reconstruct the original function from these averages (this is called inverse F-transform). While the formula for the forward F-transform makes perfect intuitive sense, the formula for the inverse F-transform seems, at first glance, somewhat counter-intuitive. On the other hand, its empirical success shows that this formula must have a good justification. In this paper, we provide such a justification - a justification which is based on formulating a reasonable compression-based criterion.
Keywords :
data compression; fuzzy set theory; inverse transforms; compression-based criterion; compression-based explanation; forward F-transform; fuzzy transform; image processing; inverse F-transform; local average; signal processing; temporal data analysis; Approximation methods; Educational institutions; Image coding; Integral equations; Laplace equations; Optimization; Transforms; Data Compression; F-Transform; Fuzzy Transform; Inverse F-Transform;
Conference_Titel :
Fuzzy Systems (FUZZ), 2013 IEEE International Conference on
Conference_Location :
Hyderabad
Print_ISBN :
978-1-4799-0020-6
DOI :
10.1109/FUZZ-IEEE.2013.6622498