TY - GEN
T1 - Wavelet denoising by quantum threshold algorithm
AU - Wang, Peng
AU - Li, Jian Ping
PY - 2007
Y1 - 2007
N2 - Quantum threshold algorithm is proposed to reduce the noise of signal. Quantum superposition principle is used to construct noise model in wavelet domain. We consider that signal is quasi quantum system. Every wavelet coefficient belongs to a superposition state. We don't know whether it belongs signal or noise until we measure it. Unlike hard threshold algorithm quantum threshold algorithm hasn't a certain threshold. The probability that a wavelet coefficient belongs to signal or noise is decided by a distribution function. Finally, several experiments are made to compare the proposed method with conventional hard threshold algorithm. The pseudo-Gibbs phenomena can be reduced by this algorithm.
AB - Quantum threshold algorithm is proposed to reduce the noise of signal. Quantum superposition principle is used to construct noise model in wavelet domain. We consider that signal is quasi quantum system. Every wavelet coefficient belongs to a superposition state. We don't know whether it belongs signal or noise until we measure it. Unlike hard threshold algorithm quantum threshold algorithm hasn't a certain threshold. The probability that a wavelet coefficient belongs to signal or noise is decided by a distribution function. Finally, several experiments are made to compare the proposed method with conventional hard threshold algorithm. The pseudo-Gibbs phenomena can be reduced by this algorithm.
UR - http://www.scopus.com/inward/record.url?scp=42949095880&partnerID=8YFLogxK
U2 - 10.1109/ICIG.2007.41
DO - 10.1109/ICIG.2007.41
M3 - Conference contribution
AN - SCOPUS:42949095880
SN - 0769529291
SN - 9780769529295
T3 - Proceedings of the 4th International Conference on Image and Graphics, ICIG 2007
SP - 62
EP - 66
BT - Proceedings of the 4th International Conference on Image and Graphics, ICIG 2007
T2 - 4th International Conference on Image and Graphics, ICIG 2007
Y2 - 22 August 2007 through 24 August 2007
ER -