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Highlights from
January 2013 "Computer Vision with MATLAB" webinar demo files

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January 2013 "Computer Vision with MATLAB" webinar demo files

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MATLAB code used in the computer vision webinar held on January 29, 2013.

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Description

The demos were presented in this order:

1. MatchCard.m - Showed how to recognize specific objects in a scene using SURF features.
2. FacePeopleDetection.m - Showed object detectors available in Computer Vision System Toolbox (vision.CascadeObjectDetector and vision.PeopleDetector).
3. visionfacetrackingKLT - Showed vision.PointTracker, which uses the Kanade-Lucas-Tomasi (KLT) algorithm.
4. ForegroundDetection.m - Showed vision.ForegroundDetector, configureKalmanFilter, and vision.KalmanFilter.

In the webinar, I also showed the demo "multiObjectTracking", which ships with Computer Vision System Toolbox

Required Products Image Processing Toolbox
Computer Vision System Toolbox
MATLAB release MATLAB 8.0 (R2012b)
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Comments and Ratings (11)
20 Nov 2013 Bruce Tannenbaum

Hi John,

This code requires release 12b or later. The function "vision.PeopleDetector" was new in release 12b, so I would expect you to get that error if you ran the code in 12a.

Thanks,
Bruce

20 Nov 2013 Lukas John

Hi Bruce,
i have 12a but this code i doesn't work.
It write error:
Undefined variable "vision" or function "vision.PeopleDetector".
Try help me please.

23 Oct 2013 khalid imtiaz imtiaz ali

i have use matlab 13a is this code work for it

22 Oct 2013 Bruce Tannenbaum

Hi Hassan,

I’ve checked the code for release 13b and everything seems functional. Can you answer two questions so that I can try to figure out what’s not working for you?

1. What release of MATLAB are you using (12b, 13a, ?) If you are using 11b or earlier, this code won't work right.
2. Which file in my entry is giving you the problem?

Thanks, Bruce

20 Oct 2013 Hassan Javaid

I'm also having the same error:

Scalar structure required for this assignment.

Error in SURFPoints/subsref (line 462)
locS.subs{2} = 1:2;

Error in MatchCard (line 21)
scale = ref_pts(i).Scale;

Please help me with this error.

28 Sep 2013 ISRAA

Perfect code.

23 Aug 2013 Abhijit

I got the following error message
Scalar structure required for this assignment.
Error in SURFPoints/subsref (line 462)
locS.subs{2} = 1:2;

Error in MatchCard (line 21)
scale = ref_pts(i).Scale;
Could you please help? I tried your version from 2012. They also have same error
Thanks,
Abhijit

30 May 2013 James

Thank You

26 Mar 2013 fath yhia

thank you

05 Feb 2013 Bruce Tannenbaum

And the recording for this webinar is located here:
http://www.mathworks.com/company/events/webinars/wbnr61958.html

05 Feb 2013 Bruce Tannenbaum

If you are looking for more about our feature detection, extraction, and matching capabilities, you can watch this webinar:
http://www.mathworks.com/company/events/webinars/wbnr55824.html

The demo files for this webinar are here:
http://www.mathworks.com/matlabcentral/fileexchange/35646-march-2012-demo-files-for-computer-vision-with-matlab

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