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3D facial landmark localization using combinatorial search and shape regression

Sukno, Federico M. orcid logoORCID: 0000-0002-2029-1576, Waddington, John L. and Whelan, Paul F. orcid logoORCID: 0000-0001-9230-7656 (2012) 3D facial landmark localization using combinatorial search and shape regression. In: Fifth Workshop on Non-Rigid Shape Analysis and Deformable Image Alignment (NORDIA'12), European Conference on Computer Vision 2012, 7-13 Oct 2012, Florence, Italy,.

This paper presents a method for the automatic detection of facial landmarks. The algorithm receives a set of 3D candidate points for each landmark (e.g. from a feature detector) and performs combinatorial search constrained by a deformable shape model. A key assumption of our approach is that for some landmarks there might not be an accurate candidate in the input set. This is tackled by detecting partial subsets of landmarks and inferring those that are missing so that the probability of the deformable model is maximized. The ability of the model to work with incomplete information makes it possible to limit the number of candidates that need to be retained, substantially reducing the number of possible combinations to be tested with respect to the alternative of trying to always detect the complete set of landmarks. We demonstrate the accuracy of the proposed method in a set of 144 facial scans acquired by means of a hand-held laser scanner in the context of clinical craniofacial dysmorphology research. Using spin images to describe the geometry and targeting 11 facial landmarks, we obtain an average error below 3 mm, which compares favorably with other state of the art approaches based on geometric descriptors.
Item Type:Conference or Workshop Item (Paper)
Event Type:Workshop
Uncontrolled Keywords:computer vision; automatic detection; facial landmarks; descriptors; 3D candidate points
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Published in: Computer Vision – ECCV 2012. Workshops and Demonstrations, Proceedings, Part I. Lecture Notes in Computer Science (LNCS) 7583. Springer.
Official URL:https://doi.org/10.1007/978-3-642-33863-2_4
Copyright Information:© 2012 The Authors
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:18572
Deposited On:16 Jul 2013 12:56 by Mark Sweeney . Last Modified 01 Mar 2022 14:08

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