Rank: 962 based on 99 downloads (last 30 days) and 2 files submitted
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Jaap de Vries

E-mail
Company/University
FM Global

Personal Profile:

Senior Research Scientist

Professional Interests:
Combustion, Fire Science, Suppression

 

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Files Posted by Jaap View all
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31 Aug 2012 Screenshot barrel and pincushion lens distortion correction I = LENSDISTORT(I, k)corrects for radially symmetric distortions Author: Jaap de Vries image processing, mathematics, optics, lens distortion, abberation, barrel distortion 71 6
  • 4.0
4.0 | 3 ratings
21 Aug 2012 Screenshot Planck's Law SPECEXITANCE Calculates the spectral radiant exitance for a black body (W/m^2·µm) Author: Jaap de Vries measurement, physics, radiation, optics, infrared 28 3
Comments and Ratings by Jaap View all
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13 Dec 2012 barrel and pincushion lens distortion correction I = LENSDISTORT(I, k)corrects for radially symmetric distortions Author: Jaap de Vries

Robert, thank you.
When a distortion is radial, you can apply an inverse correction. I guess this code can do both then. Yes the border correction as of now only works for the default correction function. It was actually one of the harder things to do.

24 Oct 2012 barrel and pincushion lens distortion correction I = LENSDISTORT(I, k)corrects for radially symmetric distortions Author: Jaap de Vries

Thank you Carlos, yes I don't understand Eyal's comment either, I even supplied example files and showed how they work. The distortion models are clearly shown to be axisymetrix, i.e., f(r).

04 Sep 2012 Planck's Law SPECEXITANCE Calculates the spectral radiant exitance for a black body (W/m^2·µm) Author: Jaap de Vries

Please rate my files or leave helpful commenst so I can make improvements.

J.

04 Sep 2012 barrel and pincushion lens distortion correction I = LENSDISTORT(I, k)corrects for radially symmetric distortions Author: Jaap de Vries

Please rate my files or leave helpful commenst so I can make improvements.

J.

29 Aug 2012 Planck's Law SPECEXITANCE Calculates the spectral radiant exitance for a black body (W/m^2·µm) Author: Jaap de Vries

Thank you for the tip Carl, I actually do a lot of work with IR cameras but mine has a microbolometer (thermal detector). I am working on a set of functions that would facilitate calculations. I will see if I can apply your suggestion.

Comments and Ratings on Jaap's Files View all
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18 Apr 2013 barrel and pincushion lens distortion correction I = LENSDISTORT(I, k)corrects for radially symmetric distortions Author: Jaap de Vries MML

13 Dec 2012 barrel and pincushion lens distortion correction I = LENSDISTORT(I, k)corrects for radially symmetric distortions Author: Jaap de Vries de Vries, Jaap

Robert, thank you.
When a distortion is radial, you can apply an inverse correction. I guess this code can do both then. Yes the border correction as of now only works for the default correction function. It was actually one of the harder things to do.

19 Nov 2012 barrel and pincushion lens distortion correction I = LENSDISTORT(I, k)corrects for radially symmetric distortions Author: Jaap de Vries Jacobsen, Robert

Very nice code!

It appears that your border correction is intended for the default ftype only.

Regarding Eyal's comment, I think he means that this way of manipulating images is usually thought of as simulating distortion, not removing it.

24 Oct 2012 barrel and pincushion lens distortion correction I = LENSDISTORT(I, k)corrects for radially symmetric distortions Author: Jaap de Vries de Vries, Jaap

Thank you Carlos, yes I don't understand Eyal's comment either, I even supplied example files and showed how they work. The distortion models are clearly shown to be axisymetrix, i.e., f(r).

24 Oct 2012 barrel and pincushion lens distortion correction I = LENSDISTORT(I, k)corrects for radially symmetric distortions Author: Jaap de Vries Carlos

Awesome job, i dont understand the last post about creates distortion but does not correct for radially symmetric distortions.

Top Tags Applied by Jaap
optics, physics, abberation, barrel distortion, image processing
Files Tagged by Jaap View all
Updated   File Tags Downloads
(last 30 days)
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31 Aug 2012 Screenshot barrel and pincushion lens distortion correction I = LENSDISTORT(I, k)corrects for radially symmetric distortions Author: Jaap de Vries image processing, mathematics, optics, lens distortion, abberation, barrel distortion 71 6
  • 4.0
4.0 | 3 ratings
21 Aug 2012 Screenshot Planck's Law SPECEXITANCE Calculates the spectral radiant exitance for a black body (W/m^2·µm) Author: Jaap de Vries measurement, physics, radiation, optics, infrared 28 3

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