How do I fill in these specific portions in a binary mask?

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Cosmic Clarity 2014-9-28

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评论： Image Analyst 2014-9-28

Hello!

These binary masks, which are basically hand patterns, are as follow:

For image one, which represents a pointing hand, I know the center "hole" can be filled by dilating the image, thereby closing the hole, and using the imfill function. The problem is, then, the encircle gaps in the images. Dilating them would mean ruining the outline and shape of the masks.

Image two represents an open hand.

The implementation of the segmentation is also automatic, so it would not be possible to use manually-inputted ROIs.

Is there a way to make it so these gaps can be filled up to at least match the shape of the hands?

Thank you for your replies.

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Answer 1

Image Analyst 2014-9-28

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Successful algorithms for gesture recognition can be found here: http://www.visionbib.com/bibliography/contentspeople.html#Face%20Recognition,%20Detection,%20Tracking,%20Gesture%20Recognition,%20Fingerprints,%20Biometrics Pick one, and code it up.

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Cosmic Clarity 2014-9-28

Actually, I already have a program that successfully recognizes gestures. The problem is one of robustness. These gaps in the hand give the system errors.

Is there a way to fix this problem particularly, without having to overhaul the system completely?

Image Analyst 2014-9-28

activecontour_demo.m

And none of the papers ever had to deal with less than perfectly smooth borders? I find that hard to believe. If not, then you can use activecontour() to get a smoothed border. I attach a demo.

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