Results 31 to 40 of about 2,499,187 (379)

Fast spatial combinative lifting algorithm of wavelet transform using the 9/7 filter for image block compression [PDF]

open access: yes, 2000
This is the post-print version of the article - Copyright @ 2000 IETA new fast spatial combinative lifting algorithm (SCLA) of the wavelet transform using the 9/7 filter for image block compression is proposed.
Cohen   +5 more
core   +1 more source

Wind Power Short-Term Prediction Based on LSTM and Discrete Wavelet Transform

open access: yesApplied Sciences, 2019
A wind power short-term forecasting method based on discrete wavelet transform and long short-term memory networks (DWT_LSTM) is proposed. The LSTM network is designed to effectively exhibit the dynamic behavior of the wind power time series.
Yao Liu   +6 more
semanticscholar   +1 more source

Multi-focus Image Fusion Based on Non-subsampled Discrete Wavelet Transform

open access: yesJournal of Harbin University of Science and Technology, 2018
Image fusion is widely used in military,medical and other fields. Image fusion technology is to use a specific algorithm to synthesize two or more images into a new image.
GUO Ling-xin, YUAN Li-ying, WANG Fei-yue
doaj   +1 more source

Time Frequency Analysis of Wavelet and Fourier Transform

open access: yes, 2020
Signal processing has long been dominated by the Fourier transform. However, there is an alternate transform that has gained popularity recently and that is the wavelet transform. The wavelet transform has a long history starting in 1910 when Alfred Haar
Karlton Wirsing
semanticscholar   +1 more source

A high-performance seizure detection algorithm based on Discrete Wavelet Transform (DWT) and EEG

open access: yesPLoS ONE, 2017
In the past decade, Discrete Wavelet Transform (DWT), a powerful time-frequency tool, has been widely used in computer-aided signal analysis of epileptic electroencephalography (EEG), such as the detection of seizures. One of the important hurdles in the
Duo-jin Chen   +3 more
semanticscholar   +1 more source

Continuous wavelet transform on local fields [PDF]

open access: yes, 2015
The main objective of this paper is to define the mother wavelet on local fields and study the continuous wavelet transform (CWT) and some of their basic properties.
Pathak, Ashish
core   +4 more sources

Optimal decomposition level of discrete, stationary and dual tree complex wavelet transform for pixel based fusion of multi-focused images [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2010
The fast development of digital image processing leads to the growth of feature extraction of images which leads to the development of Image fusion. The process of combining two different images into a new single image by retaining salient features from ...
Kannan Kanagaraj   +2 more
doaj   +1 more source

An Algorithm for the Continuous Morlet Wavelet Transform

open access: yes, 2007
This article consists of a brief discussion of the energy density over time or frequency that is obtained with the wavelet transform. Also an efficient algorithm is suggested to calculate the continuous transform with the Morlet wavelet.
Caprioli   +22 more
core   +1 more source

Timeline analysis and wavelet multiscale analysis of the AKARI All-Sky Survey at 90 micron [PDF]

open access: yes, 2008
We present a careful analysis of the point source detection limit of the AKARI All-Sky Survey in the WIDE-S 90 $\mu$m band near the North Ecliptic Pole (NEP).
Clements, Dave   +19 more
core   +2 more sources

Discrete Wavelet Transform [PDF]

open access: yes, 1998
In general, discrete wavelet transforms are generated by samplings (in the time-scale plane) of a rorn sponding continuous wavelet transform.
openaire   +1 more source

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