Description: To develop an mi age analyzing procedure forautomatic localization of facial fea-
tures on infrared mi ages.M ethodsAn unsupervised localand global features extractionmethodwas
adopted for the localization of facial features of frontalview face mi age. First, a thresholdwas used
to segment the mi age into foreground and background, and the nose was localized by considering
the symmetry of the face. Second, Harris operatorwas adopted to detect interest points in a rec-
tangulararea covering allthe facial features, and then localmaxmi um of the interestpointswere de-
tected. And finally, K-means clusteringmethodwas used to cluster the points and obtain the facial
features localization.
- [diedaifa] - Iteration method threshold principle: b
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Harris.caj
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