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Questions on Signal Processing tagged with 'convolution'.
2
CDMA : Calculating M from m1 * w1, m2*w2, etc M as Walsh Code, M as Orthogonal COde
I have these values, m2 = 1 -1 -1 1 w2 =-1 -1 1 1 -1 -1 1 1 -1 -1 1 1 -1 -1 1 1 Im about …
frequency-spectrum convolution
1
Help solving a convolution problem
I'm finding in trouble trying to resolve this exercise. I have to calculate the convolution of this …
fourier-transform homework convolution
2
Simulating analog filter using convolution or converting with fft
My task is simple; I want to simulate analog low-pass filtering of an input signal, using Python. No…
fft filters convolution python
1
Deconvolution in Python
I'm trying to use and understand SciPy's deconvolve for a project I'm working on. I'm having some tr…
convolution python deconvolution
2
What is the difference between convolution and cross-correlation?
I've found on multiple sites that convolution and cross-correlation are similar (including the tag w…
convolution autocorrelation cross-correlation
2
How to remove the boundary effects arising due to zero padding in scipy/numpy fft?
I have made a python code to smoothen a given signal using the Weierstrass transform, which is basic…
convolution smoothing python zero-padding
4
Flipping the impulse response in convolution
During convolution on a signal, why do we need to flip the impulse response during the process?
convolution impulse-response
4
A better explaination for 'there's no flipping of the impulse response' [closed]
I showed the question about flipping the impulse response to some math teachers and electrical engin…
convolution
3
Image processing, recognizing a small feature in a larger image
I am trying to write an image processing program to recognize bubbles in oil. It has been suggested …
image-processing fourier-transform opencv convolution
2
When should the sum of all elements of a gaussian kernel be zero?
I found an approximation of a 5x5 2D convolution kernel like this : Here, the sum of the elements…
convolution smoothing gaussian
1
How to show that this filter is a HP filter
i got a system with transfer function given by: $$H(\omega)=1-e^{-j\omega}$$ I already plot it, and…
filters convolution dsp-core transfer-function
1
Where does convolution fit in DFT?
I am trying to understand where does the convolution fit in Discrete Fourier Transform. I know that …
convolution dft
0
Consider filtering n*n images by separable m*m filters.What are the computation time for filtering using FFT;2-D convolution;by two 1-D convolutions
Consider filtering square n*n images by square, separable m*m filters. a) Give general equations fo…
image-processing fft convolution homework
3
Understanding convolution
Take: $$ (u*v)(k) = \sum_{i=-\infty}^\infty u(i)v(k-i). $$ The $k$ is there, it's because y…
convolution
1
Computation time 1) fft, 2) 2-d convolution, 3) two 1-d convolution
Consider filtering square n*n images by square,separable m*m filters. What are the general computati…
image fft processing convolution
0
Reconstruction from Convolution
I am trying to implement Wavelet transform in an embedded environment. The problem I face goes like …
convolution wavelet
1
How to apply convolution on a buffer
I'm trying to do some simple filtering for an audio signal using a window-sinc low pass filter. Supp…
audio convolution filtering
0
Wavelet computation with filter bank - differing results
I'm trying to get a grip on Wavelets. I've read "Wavelets, Their Friends, and What They Can Do for Y…
discrete-signals convolution wavelet
1
How do I find the Hilbert transform (qudrature) of a discrete signal by convolution with a Hilbert kernel?
Given a discrete real signal $ f_{re}(t) $ the (complex) analytic signal is given by: $ x(t) = f_{r…
filters discrete-signals convolution hilbert
1
How can I calculate the cyclic (periodic) convolution?
I'd like to understand how to calculate the cyclic convolution as well as understand what that means…
convolution
2
How to find the input if I have the impulse response and the output of a finite sequence?
I understand how to find the output from the input with an impulse response, but how can I go about …
convolution
0
Implement average as correlation
I have a MxN image matrix in, and need to get out matrix out size MxN as follows: Each point out[i,…
convolution correlation
1
Given f(x) and its FFT F(u), I need to prove that df/dx = F(u)*2iu(pi)/n
Given $f(x)$ and its FFT $F(u)$, I need to prove that $df/dx = F(u) * 2iu\pi /n.$ $df/dx = f'(x)$ a…
image-processing fft convolution
1
Convolution in image processing ?
I got the concept of Convolution in signal processing from a video lecture that it is method to get …
image-processing image convolution
0
how to pad the zeros
i have to do the convolution of two signals by employing FFT. as i am new to programming, please tel…
fft convolution zero-padding
1
Get an input signal from LTI system output, find impulse response
I just study signal processing and I have some questions. How to find impulse response $h[n]$ sequ…
convolution impulse-response
1
Common use cases for 2D NONseparable convolution filters?
In the image processing world, I've noticed that a lot of the popular convolution filters are separa…
image-processing fft convolution gaussian
1
How to use convolution operator in matlab? [closed]
I = imread('13.jpg'); Ir = I(:,:,1); Ig = I(:,:,2); Ib = I(:,:,3); %# Create the gaussia…
image-processing matlab image convolution
1
Help Understanding Convolution Filter Formulation
I'm reading Computer Vision: Algorithms and Applications wich is available online as a PDF and on Ch…
image-processing convolution
0
How to deduce a linear system's impulse response from a set of input/output signals?
I want to know how to solve those types of problems.. is it by inspection ? Consider the linear sy…
convolution homework linear-systems

Stack Mobile

CDMA : Calculating M from m1 * w1, m2*w2, etc M as Walsh Code, M as Orthogonal COde

Help solving a convolution problem

Simulating analog filter using convolution or converting with fft

Deconvolution in Python

What is the difference between convolution and cross-correlation?

How to remove the boundary effects arising due to zero padding in scipy/numpy fft?

Flipping the impulse response in convolution

A better explaination for 'there's no flipping of the impulse response' [closed]

Image processing, recognizing a small feature in a larger image

When should the sum of all elements of a gaussian kernel be zero?

How to show that this filter is a HP filter

Where does convolution fit in DFT?

Consider filtering n*n images by separable m*m filters.What are the computation time for filtering using FFT;2-D convolution;by two 1-D convolutions

Understanding convolution

Computation time 1) fft, 2) 2-d convolution, 3) two 1-d convolution

Reconstruction from Convolution

How to apply convolution on a buffer

Wavelet computation with filter bank - differing results

How do I find the Hilbert transform (qudrature) of a discrete signal by convolution with a Hilbert kernel?

How can I calculate the cyclic (periodic) convolution?

How to find the input if I have the impulse response and the output of a finite sequence?

Implement average as correlation

Given f(x) and its FFT F(u), I need to prove that df/dx = F(u)*2iu(pi)/n

Convolution in image processing ?

how to pad the zeros

Get an input signal from LTI system output, find impulse response

Common use cases for 2D NONseparable convolution filters?

How to use convolution operator in matlab? [closed]

Help Understanding Convolution Filter Formulation

How to deduce a linear system's impulse response from a set of input/output signals?

Consider filtering nn images by separable mm filters.What are the computation time for filtering using FFT;2-D convolution;by two 1-D convolutions