Listar por tema "discrete wavelet transforms"
Mostrando ítems 1-5 de 5
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Modeling Sub-Band Information Through Discrete Wavelet Transform to Improve Intelligibility Assessment of Dysarthric Speech
(International Journal of Interactive Multimedia and Artificial Intelligence (IJIMAI), 12/2022)The speech signal within a sub-band varies at a fine level depending on the type, and level of dysarthria. The Mel-frequency filterbank used in the computation process of cepstral coefficients smoothed out this fine level ... -
Optimized DWT Based Digital Image Watermarking and Extraction Using RNN-LSTM
(International Journal of Interactive Multimedia and Artificial Intelligence (IJIMAI), 12/2021)The rapid growth of Internet and the fast emergence of multi-media applications over the past decades have led to new problems such as illegal copying, digital plagiarism, distribution and use of copyrighted digital data. ... -
QAM-DWT-SVD Based Watermarking Scheme for Medical Images
(International Journal of Interactive Multimedia and Artificial Intelligence (IJIMAI), 12/2018)This paper presents a new semi-blind image watermarking system for medical applications. The new scheme utilizes Singular Value Decomposition (SVD) and Discrete Wavelet Transform (DWT) to embed a textual data into original ... -
Selecting Statistical Characteristics of Brain Signals to Detect Epileptic Seizures using Discrete Wavelet Transform and Perceptron Neural Network
(International Journal of Interactive Multimedia and Artificial Intelligence (IJIMAI), 09/2017)Electroencephalogram signals (EEG) have always been used in medical diagnosis. Evaluation of the statistical characteristics of EEG signals is actually the foundation of all brain signal processing methods. Since the correct ... -
User Identification and Verification from a Pair of Simultaneous EEG Channels Using Transform Based Features
(International Journal of Interactive Multimedia and Artificial Intelligence (IJIMAI), 06/2019)In this study, the approach of combined features from two simultaneous Electroencephalogram (EEG) channels when a user is performing a certain mental task is discussed to increase the discrimination degree among subject ...
