Matt J

Matt J

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Professional Interests

medical image processing, optimization algorithms

Reputation

5477
77% accept rate
1059 accepted answers
1answer
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program to create matrix obeying constraints

Asked by reshdev on 20 Sep 2014 at 1:27
Latest activity Commented on by Matt J about 15 hours ago
2answers
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1 vote

Why is m-function overhead 100 times more than built-in overhead.

Asked by SK on 19 Sep 2014 at 18:11
Latest activity Edited by SK about 17 hours ago
1answer
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Curve fitting a complex function

Asked by Christos on 19 Sep 2014 at 15:43
Latest activity Commented on by Matt J on 19 Sep 2014 at 17:37
1answer
0 votes
2answers
1 vote

How to specify limits for lsqnonlin

Asked by Stine Larsen on 18 Sep 2014 at 9:00
Latest activity Commented on by Matt J on 19 Sep 2014 at 14:24
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optimization procedure convergence and "norm of step"

Asked by Matthew on 18 Sep 2014 at 19:40
Latest activity Commented on by Matt J on 19 Sep 2014 at 2:21
1answer
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Using fminunc with a summation

Asked by Nila on 12 Sep 2014 at 16:40
Latest activity Edited by Matt J on 18 Sep 2014 at 17:40
2answers
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Multiplying rows of matrix without bsxfun or for loops

Asked by Krunal on 18 Sep 2014 at 12:46
Latest activity Edited by Matt J on 18 Sep 2014 at 17:36
1answer
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Where is the 'constr' function located?

Asked by Thomas Mansencal on 18 Sep 2014 at 13:52
Latest activity Commented on by Matt J on 18 Sep 2014 at 14:16
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1answer
1 vote

Peculiar behavior of lookfor

Asked by dpb on 17 Sep 2014 at 20:05
Latest activity Commented on by dpb on 18 Sep 2014 at 2:04
1answer
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how to use fminunc to get Hessian matrix

Asked by Sophia on 2 Sep 2014 at 0:59
Latest activity Edited by Sophia on 17 Sep 2014 at 22:17
3answers
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2 votes

how to tweak fmincon into yielding Global Minimum

Asked by Uday on 11 Sep 2014 at 3:28
Latest activity Edited by Matt J on 17 Sep 2014 at 10:58
1answer
1 vote

Iterative solver with gpuArray

Asked by Fabio Freschi on 16 Sep 2014 at 14:51
Latest activity Edited by Fabio Freschi on 16 Sep 2014 at 19:36
2answers
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Using fminsearch to estimate utility function with MLE

Asked by Tobias on 15 Sep 2014 at 13:15
Latest activity Edited by Matt J on 16 Sep 2014 at 11:24
1answer
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1answer
1 vote

Why 8x8 block size is preferable in DCT during compression not 4x4 or 64x64 ?

Asked by Libra on 15 Sep 2014 at 20:53
Latest activity Commented on by Matt J on 15 Sep 2014 at 22:41
1answer
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Selecting required elements from a matrix

Asked by arjun on 15 Sep 2014 at 17:06
Latest activity Edited by Guillaume on 15 Sep 2014 at 17:37
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3answers
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3answers
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define multiplication by zero for Inf

Asked by Matthew on 11 Sep 2014 at 21:02
Latest activity Commented on by Daniel on 14 Sep 2014 at 19:50
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2answers
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Does curve fitting toolbox support 3D points?

Asked by Liwei on 10 Sep 2014 at 5:39
Latest activity Commented on by Liwei on 14 Sep 2014 at 7:05
1answer
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Faster method for polyfit along 3rd dimension of a large 3D matrix ?

Asked by Lucia on 12 Sep 2014 at 19:02
Latest activity Edited by Matt J on 13 Sep 2014 at 9:41
0answers
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Very Slow Chebfun Creation inside parfor

Asked by Ben on 12 Sep 2014 at 19:03
Latest activity Commented on by Matt J on 13 Sep 2014 at 8:28
1answer
1 vote

'parfor' Memory Usage Greater Than Expected

Asked by Jay on 5 Sep 2014 at 18:01
Latest activity Commented on by Jay on 12 Sep 2014 at 0:11
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1answer
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1answer
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multi-variable-parametric data fitting

Asked by Shazux Gharasoo on 10 Sep 2014 at 16:11
Latest activity Commented on by Shazux Gharasoo on 11 Sep 2014 at 13:58
1answer
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Why x*V is different by the V*D when I use the eig function?

Asked by Traian Preda on 11 Sep 2014 at 11:35
Latest activity Commented on by Matt J on 11 Sep 2014 at 12:04
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1answer
0 votes

select the x0 (initial point for x ) in the curve fitting with lsqcurvefit

Asked by Ahmed on 10 Sep 2014 at 11:37
Latest activity Edited by Matt J on 10 Sep 2014 at 23:39
1answer
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0answers
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Struggling to distribute a cell array across several parallel workers

Asked by John Billingham on 4 Sep 2014 at 8:00
Latest activity Commented on by John Billingham on 10 Sep 2014 at 10:27
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2answers
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Balance between values of cost function and constraint tolerance in fmincon

Asked by Kenta on 8 Sep 2014 at 18:04
Latest activity Edited by Matt J on 9 Sep 2014 at 9:44
1answer
1 vote
3answers
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Help with simple FFT problem

Asked by Allyson on 5 Sep 2014 at 17:45
Latest activity Edited by Matt J on 7 Sep 2014 at 20:06
3answers
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how can convert HU(hounsfield units) to grayscale??

Asked by sara on 5 Sep 2014 at 17:39
Latest activity Commented on by Image Analyst on 6 Sep 2014 at 17:53
1answer
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how can use imfill for an image to give me a same result every time?

Asked by sara on 5 Sep 2014 at 17:32
Latest activity Commented on by Image Analyst on 5 Sep 2014 at 20:18
1answer
0 votes

can i conect every camera to matlab and process the image?

Asked by anna on 4 Sep 2014 at 20:02
Latest activity Commented on by anna on 5 Sep 2014 at 18:06
3answers
0 votes

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