How to do face alignment without considering eye position

answered 2014-10-07 01:54:50 -0600

stepo
11 ●2

If you don't want to locate eyes, you can for example use cv::matchTemplate() function. Your reference template will be an average face image. However, do you have any special reason why you don't want to locate eyes? the Haar detectors haarcascade_lefteye_2splits.xml and haarcascade_righteye_2splits.xml from opencv sample cascade classifiers work quite good for me. The further proper alignment based on the detected eyes is really easy.

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Yes I know , it is easy by locating eyes. Suppose if I got image with side face at that time I can't locate eyes. That's why I am asking is it possible to do face alignment without locating any points.

ann ( 2014-10-07 04:21:55 -0600 )edit

Actually matchTemplate() is used for image matching. How we canc use this for face alignment????

ann ( 2014-10-07 04:44:06 -0600 )edit

You cannot combine face recognition for frontal and side faces together. That is just not done due the the large inner class difference (too much variation of a single person to train a decent classifier). So either split it up or just use frontal faces. I dont know why you would use profile faces for person recognition in the first place.

StevenPuttemans ( 2014-10-07 06:17:07 -0600 )edit

Is there any way to do face alignment for profile face?

ann ( 2014-10-07 23:31:39 -0600 )edit

You would need to train 3 seperate detectors. An ear detector, a chin detector and a profile eye detector. Then use those interesting points to align all those profile faces. But why you want to align profile faces?

StevenPuttemans ( 2014-10-08 03:24:08 -0600 )edit

can you use profile face in recognition ?

chebhou ( 2014-10-10 05:32:12 -0600 )edit

Yes you can but you will need to train a complete new setup with profile faces. Also I have no idea how good this will work.

StevenPuttemans ( 2014-10-10 05:55:20 -0600 )edit

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