Homomorphic filtering is a generalized technique for signal and image processing, involving a nonlinear mapping to a different domain in which linear filter techniques are applied, followed by mapping back to the original domain. This concept was developed in the 1960s by Thomas Stockham, Alan V. Oppenheim, and Ronald W. Schafer at MIT and independently by Bogert, Healy, and Tukey in their study of time series. (Wikipedia).
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Introduction to Frequency Selective Filtering
http://AllSignalProcessing.com for free e-book on frequency relationships and more great signal processing content, including concept/screenshot files, quizzes, MATLAB and data files. Separation of signals based on frequency content using lowpass, highpass, bandpass, etc filters. Filter g
From playlist Introduction to Filter Design
Lei Zhang: Numerical Homogenization based Fast Solver for Multiscale PDEs
The lecture was held within the framework of the Hausdorff Trimester Program Multiscale Problems: Workshop on Numerical Inverse and Stochastic Homogenization. (13.02.2017) Multiscale problems arise naturally from many scientific and engineering areas such as geophysics, material sciences
From playlist HIM Lectures: Trimester Program "Multiscale Problems"
From playlist filter (less comfortable)
Frederic Legoll: Variance reduction approaches for stochastic homogenization
Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b
From playlist Probability and Statistics
Introduction to Homotopy Theory- PART 1: UNIVERSAL CONSTRUCTIONS
The goal of this series is to develop homotopy theory from a categorical perspective, alongside the theory of model categories. We do this with the hope of eventually developing stable homotopy theory, a personal goal a passion of mine. I'm going to follow nLab's notes, but I hope to add t
From playlist Introduction to Homotopy Theory
I discuss causal and non-causal noise filters: the moving average filter and the exponentially weighted moving average. I show how to do this filtering in Excel and Python
From playlist Discrete
Frequency domain – tutorial 3: filtering (periodic signals)
In this video, we learn about filtering which enables us to manipulate the frequency content of a signal. A common filtering application is to preserve desired frequencies and reject the unwanted content. The learning objectives are to: 1) review the filtering concept using Fourier series
From playlist Fourier
reaLD 3D glasses filter with a linear polarising filter
This is for a post on my blog: http://blog.stevemould.com
From playlist Everything in chronological order
Jamie Gabe: A new approach to classifying nuclear C*-algebras
Talk in the global noncommutative geometry seminar (Europe), 9 February 2022
From playlist Global Noncommutative Geometry Seminar (Europe)
Two-Scale Models in Porous Media: Modeling, Analysis ... (Lecture 1) by Hari Shankar Mahato
PROGRAM: MULTI-SCALE ANALYSIS AND THEORY OF HOMOGENIZATION ORGANIZERS: Patrizia Donato, Editha Jose, Akambadath Nandakumaran and Daniel Onofrei DATE: 26 August 2019 to 06 September 2019 VENUE: Madhava Lecture Hall, ICTS, Bangalore Homogenization is a mathematical procedure to understa
From playlist Multi-scale Analysis And Theory Of Homogenization 2019
Tristan Bice, Dauns-Hofmann-Kumjian-Renault Duality for Fell Bundles and Structured C*-Algebras
Noncommutative Geometry Seminar(Asia-Pacific), Sep. 27, 2021
From playlist Global Noncommutative Geometry Seminar (Asia and Pacific)
Tristan Bice, Dauns-Hofmann-Kumjian-Renault Duality for Fell Bundles and Structured C*-Algebras
Global Noncommutative Geometry Seminar(Asia-Pacific), Sep. 27, 2021
From playlist Global Noncommutative Geometry Seminar (Asia and Pacific)
Gregory Henselman-Petrusek (9/28/22): Saecular persistence
Homology with field coefficients has become a mainstay of modern TDA, thanks in part to structure theorems which decompose the corresponding persistence modules. This naturally begs the question -- what of integer coefficients? Or homotopy? We introduce saecular persistence, a categoric
From playlist AATRN 2022
Christopher Schafhauser: On the classification of nuclear simple C*-algebras, Lecture 3
Mini course of the conference YMC*A, August 2021, University of Münster. Abstract: A conjecture of George Elliott dating back to the early 1990’s asks if separable, simple, nuclear C*-algebras are determined up to isomorphism by their K-theoretic and tracial data. Restricting to purely i
From playlist YMC*A 2021
Lucas Mason-Brown - Arthur's Conjectures and the Orbit Method for Real Reductive Groups
The most fundamental unsolved problem in the representation theory of Lie groups is the Problem of the Unitary Dual: given a reductive Lie group G, this problem asks for a parameterization of the set of irreducible unitary G-representations. There are two big "philosophies" for approaching
From playlist 2022 Summer School on the Langlands program
Huanhuan Li: Graded and filtered K-theory for Leavitt path algebras
Talk by Huanhuan Li in the Global Noncommutative Geometry Seminar (Americas) on December 2, 2022, https://globalncgseminar.org/talks/tba-43/
From playlist Global Noncommutative Geometry Seminar (Americas)
Barcodes for Hamiltonian homeomorphisms of surfaces -Benoît Joly
Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar Topic: Barcodes for Hamiltonian homeomorphisms of surfaces Speaker: Benoît Joly Affiliation: Ruhr-Universität Bochum Date: March 25, 2022 In this talk, we will study the Floer Homology barcodes from a dynamical poin
From playlist Mathematics
Higher Algebra 13: The Tate diagonal
In this video we discuss the Tate diagonal, which is a surprising feature of the world of spectra. For further details on this construction, see https://arxiv.org/pdf/1707.01799.pdf, section III.1. Feel free to post comments and questions at our public forum at https://www.uni-muenster
From playlist Higher Algebra
Benjamin Stamm: An embedded corrector problem for stochastic homogenization
The lecture was held within the framework of the Hausdorff Trimester Program Multiscale Problems: Workshop on Numerical Inverse and Stochastic Homogenization. (14.02.2017) A very efficient algorithm has recently been introduced in [1] in order to approximate the solution of implicit solva
From playlist HIM Lectures: Trimester Program "Multiscale Problems"
Heegaard Floer homology and the knot concordance group - Jennifer Hom
Short Talks by Postdoctoral Members Jennifer Hom - September 22, 2015 http://www.math.ias.edu/calendar/event/88184/1442946600/1442947500 More videos on http://video.ias.edu
From playlist Short Talks by Postdoctoral Members