Registration of three-dimensional face scans with average face models

Albert Ali Salah*, Nese Alyuz, Lale Akarun

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


The accuracy of a three-dimensional (3-D) face recognition system depends on a correct registration that aligns the facial surfaces and makes a comparison possible. The best results obtained so far use a costly one-to-all registration approach, which requires the registration of each facial surface to all faces in the gallery. We explore the approach of registering the new facial surface to an average face model (AFM), which automatically establishes correspondence to the preregistered gallery faces. We propose a new algorithm for constructing an AFM and show that it works better than a recent approach. We inspect thin-plate spline and iterative closest-point-based registration schemes under manual or automatic landmark detection prior to registration. Extending the single-AFM approach, we consider employing categoryspecific alternative AFMs for registration and evaluate the effect on subsequent classification. We perform simulations with multiple AFMs that correspond to different clusters in the face shape space and compare these with gender- and morphology-based groupings. We show that the automatic clustering approach separates the faces into gender and morphology groups, consistent with the other race effect reported in the psychology literature. Last, we describe and analyze a regular resampling method, that significantly increases the accuracy of registration.

Original languageEnglish
Article number011006
JournalJournal of Electronic Imaging
Issue number1
Publication statusPublished - 2008


Dive into the research topics of 'Registration of three-dimensional face scans with average face models'. Together they form a unique fingerprint.

Cite this