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user153245
  • Member for 8 years, 9 months
  • Last seen more than a month ago
  • Iran
6 votes
1 answer
548 views

Derivative of $l_1$ norm

6 votes
1 answer
992 views

How to Use the DFT (FFT) to Solve a Least Squares Regularization Problem (Inverse Problem)?

4 votes
2 answers
777 views

Constructing frequency domain filter from a 2d spatial kernel

3 votes
1 answer
808 views

What is the condition under which the length of shortest 4-path equal to $D_4$ distance?

3 votes
1 answer
93 views

What does the $H$ operator exactly do in the deconvolution process and why is it needed?

2 votes
0 answers
414 views

Constructing $X(\omega/2)$ from the FFT of $x[n]$

1 vote
1 answer
158 views

Non Circulant Translation Using Fourier Transform

1 vote
1 answer
603 views

What exactly is a connected componnent in an image?

1 vote
2 answers
2k views

Estimating the Variance of Noise Using Median Function Applies on the Gradient of the Image

0 votes
0 answers
49 views

How to calculate the derivative of a sequence (discrete function) with respect to another discrete function?