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System schematics

A dog sitting on a couch.

Enrollment Process: Each sample takes several photographs of the same ear.Standarize the size of the photos, change them to grayscale, and get the mean image. Store the image to our database.Recognizing Process: Collect imagePre-processing Standarize the size of the input photo.Change it to grayscale. Feature extractionPCA processing. Compare with the image in our database.

A dog sitting on a couch.

From the external anatomy figure above, we can see:

external ear has enough details and complexities to help us recognize a particular ear. Based on statistics and researches, ears are unique for each human individual..

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Source:  OpenStax, Ear recognition. OpenStax CNX. Dec 18, 2013 Download for free at http://cnx.org/content/col11604/1.3
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