Paper Info
Title
Novel descriptors for geometrical 3D face analysis.
Abstract
3D face was recently investigated for various applications, including biometrics and diagnosis. Describing facial surface, i.e. how it bends and which kinds of patches is composed by, is the aim of studies of Face Analysis, whose ultimate goal is to identify which features could be extracted from three-dimensional faces depending on the application. In this study, we propose 105 novel geometrical descriptors for Face Analysis. They are generated by composing primary geometrical descriptors such as mean, Gaussian, principal curvatures, shape index, curvedness, and the coefficients of the fundamental forms, and by applying standard functions such as sine, cosine, and logarithm to them. The new descriptors were mapped on 217 facial depth maps and analysed in terms of descriptiveness of facial shape and exploitability for localizing landmark points. Automatic landmark extraction stands as the final aim of this analysis. Results showed that some newly generated descriptors were sounder than the primary ones, meaning that their local behaviours in correspondence to a landmark position is thoroughly specific and can be registered with high similarity on every face of our dataset.
Year
DOI
Venue
2017
10.1007/s11042-016-3741-3
Multimedia Tools Appl.
Keywords
Field
DocType
3D face,Face analysis,Landmarks,Geometry,Face recognition,Face expression recognition
Computer vision,Facial recognition system,Trigonometric functions,Pattern recognition,Computer science,Sine,Principal curvature,Gaussian,Artificial intelligence,Biometrics,Logarithm,Landmark
Journal
Volume
Issue
ISSN
76
12
1380-7501
Citations 
PageRank 
References 
17
0.64
28
Authors
2
Name
Order
Citations
PageRank
Federica Marcolin1947.50
Enrico Vezzetti215112.98