Publication
A Leopard Cannot Change Its Spots: Improving Face Recognition Using 3D-based Caricatures
| dc.contributor.author | Neves, João | |
| dc.contributor.author | Proença, H. | |
| dc.date.accessioned | 2020-02-10T14:12:01Z | |
| dc.date.available | 2020-02-10T14:12:01Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | Caricatures refer to a representation of aperson in which the distinctive features are deliberatelyexaggerated, with several studies showing that humansperform better at recognizing people from caricaturesthan using original images. Inspired by this observa-tion, this paper introduces the first fully automatedcaricature-based face recognition approach capable ofworking with data acquired in the wild. Our approachleverages the 3D face structure from a single 2D imageand compares it to a reference model for obtaininga compact representation of face features deviations.This descriptor is subsequently deformed using a ’mea-sure locally, weight globally’ strategy to resemble thecaricature drawing process. The deformed deviationsare incorporated in the 3D model using the Laplacianmesh deformation algorithm, and the 2D face cari-cature image is obtained by projecting the deformedmodel in the original camera-view. To demonstratethe advantages of caricature-based face recognition, wetrain the VGG-Face network from scratch using eitheroriginal face images (baseline) or caricatured images,and use these models for extracting face descriptorsfrom the LFW, IJB-A and MegaFace datasets. The ex-periments show an increase in the recognition accuracywhen using caricatures rather than original images.Moreover, our approach achieves competitive resultswith state-of-the-art face recognition methods, evenwithout explicitly tuning the network for any of theevaluation sets. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.doi | 10.1109/TIFS.2018.2846617 | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10400.6/9171 | |
| dc.language.iso | eng | pt_PT |
| dc.subject | Face recognition | pt_PT |
| dc.subject | 3D caricature | pt_PT |
| dc.title | A Leopard Cannot Change Its Spots: Improving Face Recognition Using 3D-based Caricatures | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| person.familyName | Proença | |
| person.givenName | Hugo | |
| person.identifier | 1153590 | |
| person.identifier.ciencia-id | ED16-81E7-0319 | |
| person.identifier.orcid | 0000-0003-2551-8570 | |
| person.identifier.rid | F-9499-2010 | |
| person.identifier.scopus-author-id | 14016540600 | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
| relation.isAuthorOfPublication | 16ca2fc4-5379-43a6-8867-ba63bd9289e0 | |
| relation.isAuthorOfPublication.latestForDiscovery | 16ca2fc4-5379-43a6-8867-ba63bd9289e0 |