Search Results for author: Peter Peer

Found 24 papers, 7 papers with code

AI-KD: Towards Alignment Invariant Face Image Quality Assessment Using Knowledge Distillation

2 code implementations15 Apr 2024 Žiga Babnik, Fadi Boutros, Naser Damer, Peter Peer, Vitomir Štruc

To address this problem, we present in this paper a novel knowledge distillation approach, termed AI-KD that can extend on any existing FIQA technique, improving its robustness to alignment variations and, in turn, performance with different alignment procedures.

Face Alignment Face Image Quality +3

Beyond Detection: Visual Realism Assessment of Deepfakes

no code implementations9 Jun 2023 Luka Dragar, Peter Peer, Vitomir Štruc, Borut Batagelj

In the era of rapid digitalization and artificial intelligence advancements, the development of DeepFake technology has posed significant security and privacy concerns.

Face Swapping

DifFIQA: Face Image Quality Assessment Using Denoising Diffusion Probabilistic Models

1 code implementation9 May 2023 Žiga Babnik, Peter Peer, Vitomir Štruc

In this paper, we present a powerful new FIQA approach, named DifFIQA, which relies on denoising diffusion probabilistic models (DDPM) and ensures highly competitive results.

Denoising Face Image Quality +2

Body Segmentation Using Multi-task Learning

no code implementations13 Dec 2022 Julijan Jug, Ajda Lampe, Vitomir Štruc, Peter Peer

Body segmentation is an important step in many computer vision problems involving human images and one of the key components that affects the performance of all downstream tasks.

Multi-Task Learning Pose Prediction +1

C-VTON: Context-Driven Image-Based Virtual Try-On Network

2 code implementations8 Dec 2022 Benjamin Fele, Ajda Lampe, Peter Peer, Vitomir Štruc

At the core of the C-VTON pipeline are: (i) a geometric matching procedure that efficiently aligns the target clothing with the pose of the person in the input images, and (ii) a powerful image generator that utilizes various types of contextual information when synthesizing the final try-on result.

Geometric Matching Virtual Try-on

FaceQAN: Face Image Quality Assessment Through Adversarial Noise Exploration

1 code implementation5 Dec 2022 Žiga Babnik, Peter Peer, Vitomir Štruc

In this paper, we propose a novel approach to face image quality assessment, called FaceQAN, that is based on adversarial examples and relies on the analysis of adversarial noise which can be calculated with any FR model learned by using some form of gradient descent.

Face Image Quality Face Image Quality Assessment +1

PrivacyProber: Assessment and Detection of Soft-Biometric Privacy-Enhancing Techniques

no code implementations16 Nov 2022 Peter Rot, Peter Peer, Vitomir Štruc

Soft-biometric privacy-enhancing techniques represent machine learning methods that aim to: (i) mitigate privacy concerns associated with face recognition technology by suppressing selected soft-biometric attributes in facial images (e. g., gender, age, ethnicity) and (ii) make unsolicited extraction of sensitive personal information infeasible.

Attribute Face Recognition

GlassesGAN: Eyewear Personalization using Synthetic Appearance Discovery and Targeted Subspace Modeling

no code implementations CVPR 2023 Richard Plesh, Peter Peer, Vitomir Štruc

To facilitate the editing process with GlassesGAN, we propose a Targeted Subspace Modelling (TSM) procedure that, based on a novel mechanism for (synthetic) appearance discovery in the latent space of a pre-trained GAN generator, constructs an eyeglasses-specific (latent) subspace that the editing framework can utilize.

Hierarchical Superquadric Decomposition with Implicit Space Separation

no code implementations15 Sep 2022 Jaka Šircelj, Peter Peer, Franc Solina, Vitomir Štruc

We introduce a new method to reconstruct 3D objects using a set of volumetric primitives, i. e., superquadrics.

Object

Face Morphing Attack Detection Using Privacy-Aware Training Data

no code implementations2 Jul 2022 Marija Ivanovska, Andrej Kronovšek, Peter Peer, Vitomir Štruc, Borut Batagelj

Images of morphed faces pose a serious threat to face recognition--based security systems, as they can be used to illegally verify the identity of multiple people with a single morphed image.

Face Morphing Attack Detection Face Recognition

BiOcularGAN: Bimodal Synthesis and Annotation of Ocular Images

1 code implementation3 May 2022 Darian Tomašević, Peter Peer, Vitomir Štruc

Current state-of-the-art segmentation techniques for ocular images are critically dependent on large-scale annotated datasets, which are labor-intensive to gather and often raise privacy concerns.

Image Generation Segmentation

Segmentation and Recovery of Superquadric Models using Convolutional Neural Networks

no code implementations28 Jan 2020 Jaka Šircelj, Tim Oblak, Klemen Grm, Uroš Petković, Aleš Jaklič, Peter Peer, Vitomir Štruc, Franc Solina

In this paper we address the problem of representing 3D visual data with parameterized volumetric shape primitives.

Simultaneous regression and feature learning for facial landmarking

no code implementations24 Apr 2019 Janez Križaj, Peter Peer, Vitomir Štruc, Simon Dobrišek

We develop two distinct approaches around the proposed gating mechanism: i) the first uses a gated multiple ridge descent (GRID) mechanism in conjunction with established (hand-crafted) HOG features for face alignment and achieves state-of-the-art landmarking performance across a wide range of facial poses, ii) the second simultaneously learns multiple-descent directions as well as binary features (SMUF) that are optimal for the alignment tasks and in addition to competitive landmarking results also ensures extremely rapid processing.

Attribute Face Alignment +1

Recovery of Superquadrics from Range Images using Deep Learning: A Preliminary Study

no code implementations13 Apr 2019 Tim Oblak, Klemen Grm, Aleš Jaklič, Peter Peer, Vitomir Štruc, Franc Solina

It has been a longstanding goal in computer vision to describe the 3D physical space in terms of parameterized volumetric models that would allow autonomous machines to understand and interact with their surroundings.

The Unconstrained Ear Recognition Challenge 2019 - ArXiv Version With Appendix

no code implementations11 Mar 2019 Žiga Emeršič, Aruna Kumar S. V., B. S. Harish, Weronika Gutfeter, Jalil Nourmohammadi Khiarak, Andrzej Pacut, Earnest Hansley, Mauricio Pamplona Segundo, Sudeep Sarkar, Hyeonjung Park, Gi Pyo Nam, Ig-Jae Kim, Sagar G. Sangodkar, Ümit Kaçar, Murvet Kirci, Li Yuan, Jishou Yuan, Haonan Zhao, Fei Lu, Junying Mao, Xiaoshuang Zhang, Dogucan Yaman, Fevziye Irem Eyiokur, Kadir Bulut Özler, Hazim Kemal Ekenel, Debbrota Paul Chowdhury, Sambit Bakshi, Pankaj K. Sa, Banshidhar Majhi, Peter Peer, Vitomir Štruc

The goal of the challenge is to assess the performance of existing ear recognition techniques on a challenging large-scale ear dataset and to analyze performance of the technology from various viewpoints, such as generalization abilities to unseen data characteristics, sensitivity to rotations, occlusions and image resolution and performance bias on sub-groups of subjects, selected based on demographic criteria, i. e. gender and ethnicity.

Benchmarking Person Recognition

Training Convolutional Neural Networks with Limited Training Data for Ear Recognition in the Wild

no code implementations27 Nov 2017 Žiga Emeršič, Dejan Štepec, Vitomir Štruc, Peter Peer

The result of our work is the first CNN-based approach to ear recognition that is also made publicly available to the research community.

Data Augmentation

The Unconstrained Ear Recognition Challenge

no code implementations23 Aug 2017 Žiga Emeršič, Dejan Štepec, Vitomir Štruc, Peter Peer, Anjith George, Adil Ahmad, Elshibani Omar, Terrance E. Boult, Reza Safdari, Yuxiang Zhou, Stefanos Zafeiriou, Dogucan Yaman, Fevziye I. Eyiokur, Hazim K. Ekenel

In this paper we present the results of the Unconstrained Ear Recognition Challenge (UERC), a group benchmarking effort centered around the problem of person recognition from ear images captured in uncontrolled conditions.

Benchmarking Person Recognition

Face Deidentification with Generative Deep Neural Networks

no code implementations28 Jul 2017 Blaž Meden, Refik Can Malli, Sebastjan Fabijan, Hazim Kemal Ekenel, Vitomir Štruc, Peter Peer

Our results show that the recognition performance on deidentified images is close to chance, suggesting that the deidentification process based on GNNs is highly effective.

Pixel-wise Ear Detection with Convolutional Encoder-Decoder Networks

no code implementations1 Feb 2017 Žiga Emeršič, Luka Lan Gabriel, Vitomir Štruc, Peter Peer

For our technique, we formulate the problem of ear detection as a two-class segmentation problem and train a convolutional encoder-decoder network based on the SegNet architecture to distinguish between image-pixels belonging to either the ear or the non-ear class.

object-detection Object Detection +1

Ear Recognition: More Than a Survey

no code implementations18 Nov 2016 Žiga Emeršič, Vitomir Štruc, Peter Peer

This paper presents an overview of the field of automatic ear recognition (from 2D images) and focuses specifically on the most recent, descriptor-based methods proposed in this area.

Fine Hand Segmentation using Convolutional Neural Networks

no code implementations26 Aug 2016 Tadej Vodopivec, Vincent Lepetit, Peter Peer

We propose a method for extracting very accurate masks of hands in egocentric views.

Hand Segmentation

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