Wavelet - PowerPoint PPT Presentation


Influence of Solar Activity and Orbital Motion on Terrestrial Atmosphere

Solar magnetic field reversal, wavelet spectral analysis, and proxies for solar activity index are discussed in relation to the joint effects of solar activity and solar orbital motion on the Earth's atmosphere. The study highlights the impact of solar cycles on terrestrial climate dynamics and temp

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Wavelet-based Scaleograms and CNN for Anomaly Detection in Nuclear Reactors

This study utilizes wavelet-based scaleograms and a convolutional neural network (CNN) for anomaly detection in nuclear reactors. By analyzing neutron flux signals from in-core and ex-core sensors, the proposed methodology aims to identify perturbations such as fuel assembly vibrations, synchronized

4 views • 11 slides



Efficient Maintenance of Indexed String Sequences in Compressed Space

The Wavelet Trie, Prefix Operations, and Dynamic Sequences are explored in maintaining an indexed sequence of strings efficiently. Various operations like access, rank, select, and dynamic updates are discussed with the aim of storing strings in minimal space while supporting polylog operations effe

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Wavelets

This content delves into the MODWPT algorithm and its comparison with PMODWPT, Fourier transform, and other methods in heart rate variability analysis. It explores wavelet variance estimators, time-resolution advantages, feature extraction for EMG pattern classification, and more.

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Efficient High-Speed Video Compression Techniques

Dive into the world of high-speed video compression and decompression pipelines, exploring techniques such as JPEG, JPEG-2000, MPEG, and the Discrete Wavelet Transform. Learn about parallelism, dummy FIFOs, and the micro-architecture of 1D and 2D signal processing for optimized video frame transfer

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Time-Frequency Analysis with Wavelet Localization Operators

Explore the boundedness, Schatten-von Neumann properties, and compactness of two-wavelet localization operators associated with the Windowed Linear Canonical Transform (WLCT) in this research presented at the Conference on Applied and Industrial Mathematics. References to notable works in the field

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Cutting-Edge Research Ideas in Computer Graphics Conference

Explore potential research ideas presented at the 40th Annual Conference of the European Association for Computer Graphics in Genova, Italy. Topics include more effective shift mapping, better reconstruction techniques using deep convolutional methods, higher-order derivatives like wavelet and Lapla

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Innovative EEG Signal Analysis Project Overview

Explore Pedro Henrique da Rocha Garrit's weekly presentation on utilizing EDFbrowser and MATLAB for EEG signal montages and analysis. Discover the accomplishments, including creating a montage file and MATLAB program, as well as future plans for wavelet-based feature extraction in EEG signal process

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Wavelet-Based EEG Signal Feature Extraction: Pedro Henrique da Rocha Garrit Presentation

Pedro Henrique da Rocha Garrit presents his weekly achievements in implementing a wavelet-based feature extraction algorithm for EEG signals, inspired by a research paper on heart rate variability analysis. He successfully executed the algorithm in MatLab, generating output as text files. His future

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Understanding Frequency Domain in Image Analysis

Explore how images can be represented in different domains like spatial and frequency domains. Learn about the various frequency domains used in image analysis and processing, including Discrete Cosine, Fourier, and Wavelet. Discover how functions can be decomposed into sinusoids for efficient proce

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Efficient Neural Network for Time Series Forecasting

This study introduces EGNN, an efficient graph-enhanced neural network for multivariate time series forecasting. It explores the intricate spatiotemporal dependencies in real-world time series data and leverages deep learning techniques such as MLP, Transformer variants, and GNNs. The paper presents

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Wavelets vs. Fourier Transforms in Signal Processing

Discover why wavelets are often preferred over Fourier transforms in signal processing, offering superior time-frequency resolution. Gain insights into the advantages of short-time FFT (STFT) and continuous wavelet transform (CWT) for improved signal analysis.

2 views • 4 slides