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3D facial expression recognition using SIFT descriptors of automatically detected keypoints.
Stefano Berretti
Boulbaba Ben Amor
Mohamed Daoudi
Alberto Del Bimbo
Published in:
Vis. Comput. (2011)
Keyphrases
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automatically detected
sift descriptors
keypoints
image matching
multiscale
visual words
sift features
object recognition
image features
scale invariant feature transform
feature detection
keypoint matching
scale space
image processing
local binary pattern
bag of visual words