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1.
DRIVSCO
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(Portfolio)
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... h systems almost always employ conventional control strategies. Biological systems, on the other hand, learn. In the beginning they are functional only at a very basic level from which they improve the ...
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Created on 07 February 2016
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2.
Bug in the Code Related to Imfilter
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(2014)
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I just noticed that there is a bug in the code that manifests itself in "later" versions of Matlab. The bug is related to the Matlab function called IMFILTER. What happens is that when calculating the diffusio ...
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Created on 09 May 2014
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3.
Non-linear Image Diffusion and Efficient Solver
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(Tutorials)
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... that we will be using is as follows:
\[ \frac = DIV \big( g(x,y,t) \nabla I_k \big) \]
, where \( k \) refers to the image channel in question (e.g. R, G or B), \( g(x,y,t) \) is a function that defines ...
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Created on 27 April 2014
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4.
Geometric Active Contour Code
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(Code samples)
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... \]
\[ \Phi_t = |\nabla \Phi| DIV \Big( \dfrac \nabla \Phi \Big) + \nabla g(I) \cdot \nabla \Phi \]
where \( \Phi \) is a level-set function defining the segment, \( g(I) \) is a `stopping' function, ...
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Created on 11 November 2012
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5.
Universidad de Chile
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(Affiliations)
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... between structure and function in lipid model systems and phenomena on sub-cellular, cellular, and supra-cellular levels in the field of developmental biology, neurobiology, or membrane biophysics."
Peopl ...
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Created on 22 June 2012
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6.
Diffusion Code
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(Code samples)
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... using the diffusion function.
From the links below you can download both the tutorial and the realted code:
Download the tutorial (PDF)
See the tutorial on-line
Download the code
...
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Created on 21 June 2012
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7.
Optical Flow Code
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(Code samples)
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... ALGORITHM FOR CALCULATING OPTICAL FLOW
//-Late linearisation (i.e. uses warping)
//-Robust error functions in both the data and the smoothness terms
//-Inputs are \(I_0\) and \(I_1\), number of scales ...
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Created on 09 May 2012
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8.
Stereo Disparity Code
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(Code samples)
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... FOR CALCULATING OPTICAL FLOW
//-Late linearisation (i.e. uses warping)
//-Robust error functions in both the data and the smoothness terms
//-Inputs are \(I_0\) and \(I_1\), number of scales \(scl\) ...
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Created on 09 May 2012
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9.
Segmentation
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(Topics)
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... e the likelihood functions' parameters. Likelihood is defined as follows:
\[ p \Big ( I | \alpha_ \Big) = p \Bigg ( \ | \alpha_i \Bigg ) \]
where \( \alpha_i \) is a parameter vector describing the likeho ...
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Created on 09 May 2012
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10.
Optical Flow
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(Topics)
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... l optical-flow calculation the energy functional describing the system is as follows:
\[ E(u,v) = \min_ \int_ \Psi \Big( Edata(u,v)^2 \Big) dx + \alpha \int_ \Psi \Big( Esmooth(u,v)^2 \Big) dx\]
whe ...
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Created on 09 May 2012
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11.
Stereo Disparity
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(Topics)
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... tional model (based on the calculus of variations). In order to get a better insight of the model and how it is resolved, have a look at my thesis. In the variational disparity calculation the energy fun ...
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Created on 09 May 2012
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12.
Research
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(Research)
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... points of the scene being viewed. Therefore, corresponding image features, between left and right cameras (or eyes), differ in position as a function of depth. This difference is called disparity. Put ...
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Created on 09 May 2012
