User Gilles

23

votes

2

answers

47k

views

Step by Step Camera Pose Estimation for Visual Tracking and Planar Markers

Jun 23 '17 at 8:33 Community♦ 1

69

votes

9

answers

89k

views

Why do we use the HSV colour space so often in vision and image processing?

image-processing computer-vision

Sep 22 '19 at 21:49 Community♦ 1

52

votes

5

answers

46k

views

What is the difference between convolution and cross-correlation?

convolution autocorrelation cross-correlation

Sep 5 at 21:56 Tom Huntington 190

26

votes

2

answers

17k

views

Overlap-Add versus Overlap-Save

fft filters convolution fast-convolution

Sep 11 at 13:55 Bob K 97

14

votes

2

answers

462

views

Detecting meandering rivers in images

image-processing computer-vision

Jun 1 '12 at 11:49 A_A 9,499

14

votes

2

answers

1k

views

What bandpass filter design will yield the shortest impulse response?

filters audio infinite-impulse-response impulse-response bandpass

Apr 28 '14 at 14:24 endolith 13.9k

6

votes

6

answers

60k

views

Why Carrier signal can't have frequency less than Message signal

frequency modulation

Dec 27 '14 at 13:22 Sufiyan Ghori 2,015

39

votes

3

answers

48k

views

What are the most common algorithms for adaptive thresholding?

image-processing thresholding

May 13 '16 at 13:56 Community♦ 1

20

votes

4

answers

28k

views

Libraries for Voice Activity Detection (Not Speech Recognition)

audio speech

Aug 27 '19 at 16:29 Peter K.♦ 19.1k

57

votes

6

answers

20k

views

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

kalman-filters least-squares bayesian-estimation

Feb 23 at 6:03 lennon310 3,410

49

votes

3

answers

19k

views

What is the sparse Fourier transform?

fourier-transform

Mar 6 '13 at 10:25 Pierre 101

34

votes

4

answers

32k

views

What is the true meaning of a minimum phase system?

filters filter-design minimum-phase

Apr 30 at 11:39 Rodrigo de Azevedo 753

12

votes

2

answers

3k

views

What statistic is used to determine presence of a signal in noise?

fft signal-detection

May 31 '16 at 12:00 Gilles 3,042

59

votes

2

answers

30k

views

Why so many methods of computing PSD?

frequency-spectrum power-spectral-density

Jul 5 '18 at 7:24 Sagar 1

19

votes

3

answers

17k

views

Help understanding Hough transform

matlab hough-transform

May 30 '16 at 10:15 Community♦ 1

14

votes

5

answers

14k

views

Time delay estimation of oscilloscope signals using cross correlation

matlab cross-correlation

Feb 4 '16 at 15:47 AshG 1

122

votes

5

answers

73k

views

What does frequency domain denote in case of images?

image-processing frequency-spectrum dft

Dec 13 '18 at 7:52 ชื่อ เท่ห์ รุ้ยัง 1

22

votes

3

answers

29k

views

What is the Gabor filter? And what are its main uses?

filters frequency gabor

Apr 30 at 11:39 Rodrigo de Azevedo 753

5

votes

1

answer

5k

views

How can I calculate the Expectation for a particular known vector?

matlab discrete-signals ica statistics independence

Nov 15 '15 at 15:17 Community♦ 1

8

votes

2

answers

254

views

Does the inverse-CTFT exist for a dirac delta?

continuous-signals

Feb 23 '12 at 13:48 Hilmar 8,982

14

votes

4

answers

5k

views

ICA - Statistical Independence & Eigenvalues of Covariance Matrix

matlab ica statistics independence

May 10 '13 at 17:10 rwolst 321

44

votes

6

answers

48k

views

Simplest way of detecting where audio envelopes start and stop

filters audio filter-design

Jan 6 '14 at 19:22 lennon310 3,410

29

votes

5

answers

18k

views

Good Language for Implementing Computer Vision System / Algorithm / Application?

image-processing computer-vision programming

Mar 13 '20 at 9:05 Royi 17.5k

16

votes

1

answer

4k

views

Find similar Music using FFT Spectrums

audio fft music

Feb 12 '12 at 15:21 jonsca 1,834

35

votes

9

answers

13k

views

Is there an algorithm for finding a frequency without DFT or FFT?

audio fft frequency dft

Oct 10 '18 at 2:30 Bizhou Ge 1

24

votes

4

answers

18k

views

Peak detection approach

filters peak-detection

May 18 '16 at 18:47 Léo Léopold Hertz 준영 125

73

votes

4

answers

56k

views

What are some free alternatives to SIFT/ SURF that can be used in commercial applications?

image-processing computer-vision local-features sift

Jun 15 '17 at 15:49 Tolga Birdal 4,998

56

votes

6

answers

54k

views

What is the distinction between ergodic and stationary?

random ergodic

Nov 28 '19 at 0:10 Community♦ 1

12

votes

2

answers

1k

views

Parametrically degrade the speech to remove emotional content

matlab audio noise

Jan 26 '12 at 16:24 Community♦ 1

12

votes

1

answer

1k

views

How does ICA handle inevitable delays in signals?

ica

Jan 10 '12 at 15:23 Community♦ 1

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Step by Step Camera Pose Estimation for Visual Tracking and Planar Markers

Why do we use the HSV colour space so often in vision and image processing?

What is the difference between convolution and cross-correlation?

Overlap-Add versus Overlap-Save

Detecting meandering rivers in images

What bandpass filter design will yield the shortest impulse response?

Why Carrier signal can't have frequency less than Message signal

What are the most common algorithms for adaptive thresholding?

Libraries for Voice Activity Detection (Not Speech Recognition)

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

What is the sparse Fourier transform?

What is the true meaning of a minimum phase system?

What statistic is used to determine presence of a signal in noise?

Why so many methods of computing PSD?

Help understanding Hough transform

Time delay estimation of oscilloscope signals using cross correlation

What does frequency domain denote in case of images?

What is the Gabor filter? And what are its main uses?

How can I calculate the Expectation for a particular known vector?

Does the inverse-CTFT exist for a dirac delta?

ICA - Statistical Independence & Eigenvalues of Covariance Matrix

Simplest way of detecting where audio envelopes start and stop

Good Language for Implementing Computer Vision System / Algorithm / Application?

Find similar Music using FFT Spectrums

Is there an algorithm for finding a frequency without DFT or FFT?

Peak detection approach

What are some free alternatives to SIFT/ SURF that can be used in commercial applications?

What is the distinction between ergodic and stationary?

Parametrically degrade the speech to remove emotional content

How does ICA handle inevitable delays in signals?