Facial Age Estimation Models for Embedded Systems: A Comparative Study

Automated age estimation from face images is the process of assigning either an exact age or a specific age range to a facial image. In this paper a comparative study of the current techniques suitable for this task is performed, with an emphasis on lightweight models suitable for embedded implement...

Full description

Bibliographic Details
Main Authors: Zorana Dozdor, Tomislav Hrkac, Karla Brkic, Zoran Kalafatic
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10041926/
_version_ 1797905473658159104
author Zorana Dozdor
Tomislav Hrkac
Karla Brkic
Zoran Kalafatic
author_facet Zorana Dozdor
Tomislav Hrkac
Karla Brkic
Zoran Kalafatic
author_sort Zorana Dozdor
collection DOAJ
description Automated age estimation from face images is the process of assigning either an exact age or a specific age range to a facial image. In this paper a comparative study of the current techniques suitable for this task is performed, with an emphasis on lightweight models suitable for embedded implementation. We investigate both the suitable modern deep learning architectures for feature extraction and the variants of framing the problem itself as either classification, regression or soft label classification. The models are evaluated on Audience dataset for age group classification and FG-NET dataset for exact age estimation. To gather in-depth insights into automated age estimation and in contrast to existing studies, we additionally compare the performance of both classification and regression on the same dataset. We propose a novel loss function that combines regression and classification approaches and show that it outperforms other considered approaches. At the same time, with a lightweight backbone, such an architecture is suitable for implementation on embedded devices.
first_indexed 2024-04-10T10:05:53Z
format Article
id doaj.art-96d9133e618143bf89750988f5e6250d
institution Directory Open Access Journal
issn 2169-3536
language English
last_indexed 2024-04-10T10:05:53Z
publishDate 2023-01-01
publisher IEEE
record_format Article
series IEEE Access
spelling doaj.art-96d9133e618143bf89750988f5e6250d2023-02-16T00:00:35ZengIEEEIEEE Access2169-35362023-01-0111142821429210.1109/ACCESS.2023.324405910041926Facial Age Estimation Models for Embedded Systems: A Comparative StudyZorana Dozdor0https://orcid.org/0000-0002-9194-4589Tomislav Hrkac1https://orcid.org/0000-0002-4362-2489Karla Brkic2https://orcid.org/0000-0003-1355-4398Zoran Kalafatic3https://orcid.org/0000-0001-8918-9070Faculty of Electrical Engineering and Computing, University of Zagreb, Zagreb, CroatiaFaculty of Electrical Engineering and Computing, University of Zagreb, Zagreb, CroatiaFaculty of Electrical Engineering and Computing, University of Zagreb, Zagreb, CroatiaFaculty of Electrical Engineering and Computing, University of Zagreb, Zagreb, CroatiaAutomated age estimation from face images is the process of assigning either an exact age or a specific age range to a facial image. In this paper a comparative study of the current techniques suitable for this task is performed, with an emphasis on lightweight models suitable for embedded implementation. We investigate both the suitable modern deep learning architectures for feature extraction and the variants of framing the problem itself as either classification, regression or soft label classification. The models are evaluated on Audience dataset for age group classification and FG-NET dataset for exact age estimation. To gather in-depth insights into automated age estimation and in contrast to existing studies, we additionally compare the performance of both classification and regression on the same dataset. We propose a novel loss function that combines regression and classification approaches and show that it outperforms other considered approaches. At the same time, with a lightweight backbone, such an architecture is suitable for implementation on embedded devices.https://ieeexplore.ieee.org/document/10041926/Age estimationcomputer visiondeep learningface detection
spellingShingle Zorana Dozdor
Tomislav Hrkac
Karla Brkic
Zoran Kalafatic
Facial Age Estimation Models for Embedded Systems: A Comparative Study
IEEE Access
Age estimation
computer vision
deep learning
face detection
title Facial Age Estimation Models for Embedded Systems: A Comparative Study
title_full Facial Age Estimation Models for Embedded Systems: A Comparative Study
title_fullStr Facial Age Estimation Models for Embedded Systems: A Comparative Study
title_full_unstemmed Facial Age Estimation Models for Embedded Systems: A Comparative Study
title_short Facial Age Estimation Models for Embedded Systems: A Comparative Study
title_sort facial age estimation models for embedded systems a comparative study
topic Age estimation
computer vision
deep learning
face detection
url https://ieeexplore.ieee.org/document/10041926/
work_keys_str_mv AT zoranadozdor facialageestimationmodelsforembeddedsystemsacomparativestudy
AT tomislavhrkac facialageestimationmodelsforembeddedsystemsacomparativestudy
AT karlabrkic facialageestimationmodelsforembeddedsystemsacomparativestudy
AT zorankalafatic facialageestimationmodelsforembeddedsystemsacomparativestudy