How to achieve real-time human silhouette and movement detection?

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Avinash S
Avinash S on 23 Jan 2016
Commented: Walter Roberson on 12 May 2017
I started with background subtraction between a static background and another image with a foreground object(hand) that were captured from webcam. I couldn't get good results. I have attached the code i used and images below.
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Walter Roberson
Walter Roberson on 12 May 2017
You do not appear to be accounting for illumination differences. Possibly that would help.

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Answers (3)

Image Analyst
Image Analyst on 23 Jan 2016
You can avoid the loop by saying
binaryImage = Out > 3; % Or some number that works.
Then use bwareaopen() or bwareafilt() to get rid of small blobs.
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Image Analyst
Image Analyst on 24 Jan 2016
See my attached code.
If you want a smoother background, like to not have the movement of the drapes shadow be connected to the arm, you can use activecontour(). I've also attached a demo for that so you should be off to a good start.
Note: This may not be the best approach - the foreground detector in the Computer Vision System Toolbox may work better.
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shine day
shine day on 12 May 2017
hi! Image Analyst. could you give me your email? I would like to ask you about image background subtraction. Best regards!

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