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Real Time face comparision using OpenCV

asked 2013-02-03 02:26:10 -0600

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how to compare the image from the camera preview with stored images in database real time ??

Thanks in advance

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answered 2013-02-06 06:54:38 -0600

All you probably need is in the chapter 8 of Mastering OpenCV with practical computer vision projects book. The source code is here:

If you have a huge collection of face (not everything in RAM as the code above), you probably need to create a routine which get X faces from a database, compute the score, keep the best, get next X faces from the database, update the best (if needed), etc. until all faces of the database have been compared.

I'm not a specialist of this, but may be you can order your face in a acceleration structure (KD-tree or everything else) and load only useful images from the database. As you can see in the above code, only a norm is used to compare faces (getSimilarity() function), so it will be easy to create a partition of the database according to vector values.

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Asked: 2013-02-03 02:26:10 -0600

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Last updated: Feb 06 '13