User Spacey

29 votes

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How to Extract High Frequency and Low Frequency Component Using Bilateral Filter?

answered Jan 9, 2013 at 16:24

23 votes

Why are Gaussian filters used as low pass filters in image processing?

answered Jul 31, 2012 at 20:01

15 votes

Reading the Wavelet transform plot

answered Feb 20, 2013 at 16:10

14 votes

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Time delay estimation of oscilloscope signals using cross correlation

answered Apr 12, 2012 at 3:14

13 votes

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What does the normalization step of the Haar wavelet transform represent?

answered Mar 16, 2012 at 17:21

13 votes

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Peak detection approach

answered Feb 2, 2012 at 18:14

12 votes

Using continuous verses discrete wavelet transform in digital applications

answered Feb 26, 2013 at 19:17

11 votes

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Choosing the length of a signal when calculating the FFT

answered Sep 7, 2012 at 15:21

11 votes

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On the time-frequency relationships of median filters

answered May 5, 2012 at 0:10

9 votes

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Why transforming the data to a high-dimensional feature space in which classes are linearly separable leads to overfitting?

answered Nov 11, 2012 at 23:12

9 votes

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Determining the type of filter on an image

answered Nov 20, 2012 at 19:58

9 votes

Simplest way of detecting where audio envelopes start and stop

answered Feb 21, 2012 at 16:41

8 votes

Hilbert transform to compute signal envelope?

answered Oct 14, 2011 at 23:47

8 votes

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Determining Frequency and Period of a wave

answered Jun 2, 2012 at 18:44

8 votes

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

answered Apr 4, 2013 at 14:32

8 votes

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Why complex numbers are represents as a+ib and can't be as (a,b)?

answered Feb 25, 2013 at 18:18

7 votes

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Why can the FFT always be mirrored in the middle of the x axis?

answered Apr 9, 2013 at 14:09

7 votes

Bag of Tricks for Denoising Signals While Maintaining Sharp Transitions

answered Aug 8, 2012 at 13:52

6 votes

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Showing frequency and amplitude after doing an FFT on a signal

answered Nov 27, 2012 at 17:24

6 votes

What Is the Relationship Between a Kalman Filter and Polynomial Regression?

answered May 14, 2012 at 5:53

6 votes

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Why Low Frequency called Approximation and High Frequency Detail?

answered Mar 1, 2013 at 16:59

5 votes

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Finding the dominant tone in a signal

answered Apr 4, 2013 at 23:31

5 votes

Can edge detection be done in the frequency domain?

answered Jul 8, 2012 at 15:44

5 votes

Books that explain DSP well to those not directly in engineering?

answered Apr 30, 2012 at 16:11

4 votes

How to determine the "variability" in a frequency range?

answered Feb 9, 2012 at 17:18

4 votes

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Frequency vector and fft

answered Apr 8, 2013 at 20:28

4 votes

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wavelet denoising routine for environmental data series

answered Feb 11, 2013 at 20:53

4 votes

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Face recognition using independent component analysis (ICA)

answered Jan 7, 2013 at 16:24

3 votes

Determining Type and Bandwidth of a filter

answered Feb 11, 2013 at 19:50

3 votes

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What is mean by [1 -1] Filter?

answered Feb 21, 2013 at 18:05

Stack Exchange Network

54 Answers

How to Extract High Frequency and Low Frequency Component Using Bilateral Filter?

Why are Gaussian filters used as low pass filters in image processing?

Reading the Wavelet transform plot

Time delay estimation of oscilloscope signals using cross correlation

What does the normalization step of the Haar wavelet transform represent?

Peak detection approach

Using continuous verses discrete wavelet transform in digital applications

Choosing the length of a signal when calculating the FFT

On the time-frequency relationships of median filters

Why transforming the data to a high-dimensional feature space in which classes are linearly separable leads to overfitting?

Determining the type of filter on an image

Simplest way of detecting where audio envelopes start and stop

Hilbert transform to compute signal envelope?

Determining Frequency and Period of a wave

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

Why complex numbers are represents as a+ib and can't be as (a,b)?

Why can the FFT always be mirrored in the middle of the x axis?

Bag of Tricks for Denoising Signals While Maintaining Sharp Transitions

Showing frequency and amplitude after doing an FFT on a signal

What Is the Relationship Between a Kalman Filter and Polynomial Regression?

Why Low Frequency called Approximation and High Frequency Detail?

Finding the dominant tone in a signal

Can edge detection be done in the frequency domain?

Books that explain DSP well to those not directly in engineering?

How to determine the "variability" in a frequency range?

Frequency vector and fft

wavelet denoising routine for environmental data series

Face recognition using independent component analysis (ICA)

Determining Type and Bandwidth of a filter

What is mean by [1 -1] Filter?