On Training Road Surface Classifiers by Data Augmentation

It is demonstrated that data augmentation is a promising approach to reduce the size of the captured dataset required for training automatic road surface classifiers. The context is on-board systems for autonomous or semi-autonomous driving assistance: automatic power-assisted steering. Evidence is...

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Main Authors: Addisson Salazar, Alberto Rodríguez, Nancy Vargas, Luis Vergara
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/7/3423
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author Addisson Salazar
Alberto Rodríguez
Nancy Vargas
Luis Vergara
author_facet Addisson Salazar
Alberto Rodríguez
Nancy Vargas
Luis Vergara
author_sort Addisson Salazar
collection DOAJ
description It is demonstrated that data augmentation is a promising approach to reduce the size of the captured dataset required for training automatic road surface classifiers. The context is on-board systems for autonomous or semi-autonomous driving assistance: automatic power-assisted steering. Evidence is obtained by extensive experiments involving multiple captures from a 10-channel multisensor deployment: three channels from the accelerometer (acceleration in the X, Y, and Z axes); three microphone channels; two speed channels; and the torque and position of the handwheel. These captures were made under different settings: three worm-gear interface configurations; hands on or off the wheel; vehicle speed (constant speed of 10, 15, 20, 30 km/h, or accelerating from 0 to 30 km/h); and road surface (smooth flat asphalt, stripes, or cobblestones). It has been demonstrated in the experiments that data augmentation allows a reduction by an approximate factor of 1.5 in the size of the captured training dataset.
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spelling doaj.art-51d7d2aa15a94182834ecc798596ff872023-11-30T22:55:32ZengMDPI AGApplied Sciences2076-34172022-03-01127342310.3390/app12073423On Training Road Surface Classifiers by Data AugmentationAddisson Salazar0Alberto Rodríguez1Nancy Vargas2Luis Vergara3Instituto de Telecomunicaciones y Aplicaciones Multimedia, Universitat Politècnica de València, C/Camino de Vera s/n, 46022 València, SpainDepartamento de Ingeniería de Comunicación, Universidad Miguel Hernández, Avda. de la Universitat d’Elx s/n, 03202 Alicante, SpainInstituto de Telecomunicaciones y Aplicaciones Multimedia, Universitat Politècnica de València, C/Camino de Vera s/n, 46022 València, SpainInstituto de Telecomunicaciones y Aplicaciones Multimedia, Universitat Politècnica de València, C/Camino de Vera s/n, 46022 València, SpainIt is demonstrated that data augmentation is a promising approach to reduce the size of the captured dataset required for training automatic road surface classifiers. The context is on-board systems for autonomous or semi-autonomous driving assistance: automatic power-assisted steering. Evidence is obtained by extensive experiments involving multiple captures from a 10-channel multisensor deployment: three channels from the accelerometer (acceleration in the X, Y, and Z axes); three microphone channels; two speed channels; and the torque and position of the handwheel. These captures were made under different settings: three worm-gear interface configurations; hands on or off the wheel; vehicle speed (constant speed of 10, 15, 20, 30 km/h, or accelerating from 0 to 30 km/h); and road surface (smooth flat asphalt, stripes, or cobblestones). It has been demonstrated in the experiments that data augmentation allows a reduction by an approximate factor of 1.5 in the size of the captured training dataset.https://www.mdpi.com/2076-3417/12/7/3423driving assistanceroad surface classificationmachine learningdata augmentation
spellingShingle Addisson Salazar
Alberto Rodríguez
Nancy Vargas
Luis Vergara
On Training Road Surface Classifiers by Data Augmentation
Applied Sciences
driving assistance
road surface classification
machine learning
data augmentation
title On Training Road Surface Classifiers by Data Augmentation
title_full On Training Road Surface Classifiers by Data Augmentation
title_fullStr On Training Road Surface Classifiers by Data Augmentation
title_full_unstemmed On Training Road Surface Classifiers by Data Augmentation
title_short On Training Road Surface Classifiers by Data Augmentation
title_sort on training road surface classifiers by data augmentation
topic driving assistance
road surface classification
machine learning
data augmentation
url https://www.mdpi.com/2076-3417/12/7/3423
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AT albertorodriguez ontrainingroadsurfaceclassifiersbydataaugmentation
AT nancyvargas ontrainingroadsurfaceclassifiersbydataaugmentation
AT luisvergara ontrainingroadsurfaceclassifiersbydataaugmentation