Title :
A speedup method for fractal encoding of digital signals
Author :
Chuanzhen, Liu ; Xiangdong, Gong ; Shuping, Shen
Author_Institution :
Dept. of Comput. Sci., Nanchang Univ., China
Abstract :
A fast fractal encoding method for one dimensional digital signals is given, in which the local extremum points of the data sequence to be encoded are firstly determined, and then the optimum interpolation points for fractal encoding are searched in the extremum-points pool. In this way, the search space of the interpolation points is considerably reduced. Experimental results show that the encoding speed is greatly increased, whereas the signal compression ratio and the reconstruction quality of signals are comparable to that of similar researches
Keywords :
data compression; digital signals; encoding; fractals; interpolation; iterative methods; signal reconstruction; 1D digital signals; data sequence; fast fractal encoding method; interpolation points; iterated function system; local extremum points; optimum interpolation points; search space; signal compression ratio; signal reconstruction quality; speedup method; Bandwidth; Electrocardiography; Encoding; Extraterrestrial measurements; Fractals; Image coding; Image reconstruction; Interpolation; Iterative decoding; Signal mapping;
Conference_Titel :
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-5747-7
DOI :
10.1109/ICOSP.2000.891734
