Publications

Here’s a list of my most relevant publications. You can also find a complete list of all my publication in my Scholar profile.

What makes you, you? Analyzing Recognition by Swapping Face Parts

Published in International Conference on Pattern Recognition (ICPR), 2022

In this paper, we propose to swap facial parts as a way to disentangle the recognition relevance of different face parts, like eyes, nose and mouth. In our method, swapping parts from a source face to a target one is performed by fitting a 3D prior, which establishes dense pixels correspondence between parts, while also handling pose differences.

(Compress and Restore): a Robust Defense Against Adversarial Attacks on Image Classification

Published in ACM Transactions on Multimedia Computing Communications and Applications (TOMM), 2022

In this paper, we propose a conceptually simple yet robust solution to tackle adversarial attacks on image classification. Our defense works by first applying a JPEG compression with a random quality factor; compression artifacts are subsequently removed by means of a generative model (AR-GAN).

Sparse to dense dynamic 3d facial expression generation

Published in IEEE/CVF International Conference on Computer Vision and Pattern Recognition (CVPR), 2022

In this paper, we propose a solution to the task of generating dynamic 3D facial expressions from a neutral 3D face and an expression label.

Investigating Nuisances in DCNN-based Face Recognition

Published in IEEE Transactions on Image Processing (TIP), 2018

In this paper, we present a thorough analysis of several aspects that impact on the use of DCNN for face recognition. The evaluation has been carried out from two main perspectives: the network architecture and the similarity measures used to compare deeply learned features; and the data (source and quality) and their preprocessing (bounding box and alignment). The results obtained on the IARPA Janus Benchmark-A, MegaFace, UMDFaces, and YouTube Faces data sets indicate viable hints for designing, training, and testing DCNNs.

A Dictionary Learning-based 3D Morphable Shape Model

Published in IEEE Transactions on Multimedia (TMM), 2017

In this paper, we propose a new approach for constructing a 3D morphable shape model (called DL-3DMM) including both identity and expression variations, which can reach the accuracy of deformation required in applications where fine details of the face are concerned.