Method for locating a subject's lips in a facial image

Image analysis – Image transformation or preprocessing – Measuring image properties

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348 15, 382118, 382156, 382170, 382195, 382205, 382224, 382260, 382279, 382282, 382286, 382308, G06K 936, G06K 900, G06K 962, G06K 956

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058057455

ABSTRACT:
An embodiment of the present invention locates facial features in an image by bandpass filtering the image and then performing morphological operations followed by a thresholding operation. This initial processing identifies candidate areas where facial features may be located. The candidate areas are evaluated by classifiers to determine if a facial feature, such as an eye or mouth, has been located.

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