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Berkin Bilgic

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MIT

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27 Mar 2009 Screenshot Iterative Pyramidal LK Optical Flow An implementation of Lucas-Kanade optical flow computation. Author: Berkin Bilgic image processing, computer vision, optical flow, lucaskanade 67 6
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18 Oct 2012 Tools for NIfTI and ANALYZE image Load, save, make, reslice, view (and edit) both NIfTI and ANALYZE data on any platform Author: Jimmy Shen

17 Oct 2012 Fast Non-Local Means 1D, 2D Color and 3D NL-means image and signal denoising filter based on similarity between pixel patches Author: Dirk-Jan Kroon

14 Apr 2009 Iterative Pyramidal LK Optical Flow An implementation of Lucas-Kanade optical flow computation. Author: Berkin Bilgic

Hi,

The terms Ix^2 and Iy^2 denote the second derivatives wrt to x and y. However, that matrix is sometimes ill conditioned, so you may want to google 'good features to track' by Shi&Tomosi which discusses that problem.

01 Mar 2009 Iterative Pyramidal LK Optical Flow An implementation of Lucas-Kanade optical flow computation. Author: Berkin Bilgic

Hi,

I added two example images and some more comments, I hope they'll be online soon.

Berkin

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17 May 2014 Iterative Pyramidal LK Optical Flow An implementation of Lucas-Kanade optical flow computation. Author: Berkin Bilgic Simson, Y

Nicely written code. Thanks

28 Apr 2009 Iterative Pyramidal LK Optical Flow An implementation of Lucas-Kanade optical flow computation. Author: Berkin Bilgic laufer, Assaf

Hi all
the SAD before / SAD after is always at 1.6 ~ 1.9 for my pictures
Has anyone got beeter SAD ratio?

14 Apr 2009 Iterative Pyramidal LK Optical Flow An implementation of Lucas-Kanade optical flow computation. Author: Berkin Bilgic Bilgic, Berkin

Hi,

The terms Ix^2 and Iy^2 denote the second derivatives wrt to x and y. However, that matrix is sometimes ill conditioned, so you may want to google 'good features to track' by Shi&Tomosi which discusses that problem.

11 Apr 2009 Iterative Pyramidal LK Optical Flow An implementation of Lucas-Kanade optical flow computation. Author: Berkin Bilgic Kasser, Gabriel

Hi

I am a french student and I tried make your algorythm work with python but I have a problem (I don't know if it is me or the pdf). when I compute the G matrix , this one is always uninvertible (I dont see how it would be possible to invert a Matrix [[Ix²,Ix*Iy],[IX*Iy,Iy²]] because the determinant is always 0) could you help me please?

Best regards
GK

01 Mar 2009 Iterative Pyramidal LK Optical Flow An implementation of Lucas-Kanade optical flow computation. Author: Berkin Bilgic Bilgic, Berkin

Hi,

I added two example images and some more comments, I hope they'll be online soon.

Berkin

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