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Mostrando ítems 11-20 de 116
Adaptive edge-preserving image denoising using wavelet transforms
(SpringerNew YorkEUA, 2013)
Wavelet-based fingerprint image retrieval
(Elsevier Science BvAmsterdamHolanda, 2009)
Analysis and Classification of Natural Rock Textures based on New Transform-based Features
(2016)
This work develops a mathematical method to extract relevant information about natural rock textures to address the problem of automatic classification. Classical methods of texture analysis cannot be directly applied in ...
Processamento de sinais para monitoramento de vibrações em unidades geradoras hidrelétricas
(Universidade Federal de Minas GeraisUFMG, 2013-12-13)
The vibration monitoring gets highlighted in diagnosing the condition of rotating electrical machines because it is effective in detecting the occurrence of several failures with relatively simple instrumentation. It is ...
Minimum classification error learning for sequential data in the wavelet domain
(Elsevier, 2010-12)
Wavelet analysis has found widespread use in signal processing and many classification tasks. Nevertheless, its use in dynamic pattern recognition have been much more restricted since most of wavelet models cannot handle ...
Multiple classification of the force and acceleration signals extracted during multiple machine processes: part 2 intelligent control simulation perspective
(2017)
Part 2 of this work looks at the simulation for the accurate control of multiple machine processes made on a machining centre. Specifically the models are based on controlling against two grinding anomalies; grinding burn ...
Comparative analysis of signal processing techniques for impedance-based SHM applications in noisy environments
(2019-07-01)
Structural health monitoring (SHM) systems have been extensively studied in recent decades to determine the health statuses of mechanical, naval and aerospace engineering components. Currently, one of the most promising ...
Improving the seismic image in reverse time migration by analysis of wavefields via continuous wavelet transform
(Universidad EAFITDoctorado en IngenieríaEscuela de IngenieríaMedellín, 2018)
During the last 50 years there has been a lot of effort to obtain subsurface structures on the oil and gas exploration. Some of them even if they are based on the mathematical formulation of the phenomenon, were not easily ...