Similarity Measures for Face Recognition

Similarity Measures for Face Recognition

Indexed in: EBSCO.

Face recognition has several applications, including security, such as (authentication and identification of device users and criminal suspects), and in medicine (corrective surgery and diagnosis). ...
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Mahalanobis Distance for Face Recognition

Pp. 31-38 (8)

Enrico Vezzetti and Federica Marcolin


If two vectors originate from the same underlying distribution, the distance between them could be computed with the Mahalanobis distance, a generalization of the Euclidean one. Also, it can be defined as the Euclidean distance computed in the Mahalanobis space. Moreover, there exist also the city block-based Mahalanobis distance and other versions including the angle- and cosine-based ones. Largely employed for face recognition with bi-dimensional facial data, Mahalanobis gains very good performances with PCA algorithms.


Mahalanobis distance, Mahalanobis angle, Mahalanobis cosine measure.


Department of Management and Production Engineering, Politecnico di Torino, Torino, Italy.