Rank: 425 based on 204 downloads (last 30 days) and 1 file submitted
photo

Visesh Chari

E-mail
Company/University
INRIA Rhône Alpes
Lat/Long
45.219353, 5.776599

Personal Profile:

http://perception.inrialpes.fr/~chari

Professional Interests:
Computer Vision, Signal Processing

 

Watch this Author's files

 

Files Posted by Visesh
  • 1 - 1 of
  • 1
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
23 Jun 2009 Screenshot High accuracy optical flow High accuracy optical flow using a theory for warping Author: Visesh Chari high accuracy, optical flow, image registration, optic flow, geometric t, image processing 204 28
  • 4.15385
4.2 | 14 ratings
Comments and Ratings by Visesh View all
  • 1 - 4 of
  • 4
Updated File Comments Rating
30 Oct 2009 High accuracy optical flow High accuracy optical flow using a theory for warping Author: Visesh Chari

Hi Johan,

I have the code, but its not documented yet... I could give it to you if you want to have a look, but I haven't thoroughly proofread it for bugs, and might not have time before december....
04 Mar 2009 High accuracy optical flow High accuracy optical flow using a theory for warping Author: Visesh Chari

can you tell me what doesnt work ? i have received no complains so far... may be you did not read the reference document i sent... if possible post the error so that i can check
05 Nov 2008 High accuracy optical flow High accuracy optical flow using a theory for warping Author: Visesh Chari

Hi, the basic smoothing operation that is done in the algorithm is to reduce the effects of noise in the data, so it cannot be avoided. If you really have noiseless data, and do not need much smoothing, you can change the appropriate parameters. You can refer to my documentation, but will eventually have to tweak the code to reduce the variance of the gaussian used for smoothing. If this is not too urgent (u can wait a week or so), I should be able to post additional documentation material, which you can use...
01 Nov 2008 High accuracy optical flow High accuracy optical flow using a theory for warping Author: Visesh Chari

it should work, so long as u and v are formatted like those in my code, which is just two 2D arrays with flow values....
Comments and Ratings on Visesh's Files View all
  • 1 - 5 of
  • 29
Updated File Comment by Comments Rating
22 Feb 2010 High accuracy optical flow High accuracy optical flow using a theory for warping Author: Visesh Chari Yu, Hu

Very usefull tool ! I'm looking forward to a MEX version.

30 Oct 2009 High accuracy optical flow High accuracy optical flow using a theory for warping Author: Visesh Chari Chari, Visesh

Hi Johan,

I have the code, but its not documented yet... I could give it to you if you want to have a look, but I haven't thoroughly proofread it for bugs, and might not have time before december....
10 Oct 2009 High accuracy optical flow High accuracy optical flow using a theory for warping Author: Visesh Chari Johan

Visesh, you mentioned a MEX version of the algorithm. Have you made it available somewhere? I'm trying to run it on rather large images, so I could appreciate some improved speed. Thanks.
01 Sep 2009 High accuracy optical flow High accuracy optical flow using a theory for warping Author: Visesh Chari tlg

31 Aug 2009 High accuracy optical flow High accuracy optical flow using a theory for warping Author: Visesh Chari tlg

Hi. First of all thanks for your share.
I am trying to understand your code and I am almost finished but 'constructMatrix' function is still waiting to be explored. Could you, if possible, give some explanations on construction of the matrices in this script.
Top Tags Applied by Visesh
  • 1 - 5 of
  • 7
geometric t, geometric transformation, high accuracy, image processing, image registration
Files Tagged by Visesh
  • 1 - 1 of
  • 1
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
23 Jun 2009 Screenshot High accuracy optical flow High accuracy optical flow using a theory for warping Author: Visesh Chari high accuracy, optical flow, image registration, optic flow, geometric t, image processing 204 28
  • 4.15385
4.2 | 14 ratings
 

MATLAB Central Terms of Use

NOTICE: Any content you submit to MATLAB Central, including personal information, is not subject to the protections which may be afforded information collected under other sections of The MathWorks, Inc. Web site. You are entirely responsible for all content that you upload, post, e-mail, transmit or otherwise make available via MATLAB Central. The MathWorks does not control the content posted by visitors to MATLAB Central and, does not guarantee the accuracy, integrity, or quality of such content. Under no circumstances will The MathWorks be liable in any way for any content not authored by The MathWorks, or any loss or damage of any kind incurred as a result of the use of any content posted, e-mailed, transmitted or otherwise made available via MATLAB Central. Read the complete Terms prior to use.

Contact us at files@mathworks.com