Evaluation of Event-Based Corner Detectors

Bio-inspired Event-Based (EB) cameras are a promising new technology that outperforms standard frame-based cameras in extreme lighted and fast moving scenes. Already, a number of EB corner detection techniques have been developed; however, the performance of these EB corner detectors has only been e...

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Main Authors: Özgün Yılmaz, Camille Simon-Chane, Aymeric Histace
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Journal of Imaging
Subjects:
Online Access:https://www.mdpi.com/2313-433X/7/2/25
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author Özgün Yılmaz
Camille Simon-Chane
Aymeric Histace
author_facet Özgün Yılmaz
Camille Simon-Chane
Aymeric Histace
author_sort Özgün Yılmaz
collection DOAJ
description Bio-inspired Event-Based (EB) cameras are a promising new technology that outperforms standard frame-based cameras in extreme lighted and fast moving scenes. Already, a number of EB corner detection techniques have been developed; however, the performance of these EB corner detectors has only been evaluated based on a few author-selected criteria rather than on a unified common basis, as proposed here. Moreover, their experimental conditions are mainly limited to less interesting operational regions of the EB camera (on which frame-based cameras can also operate), and some of the criteria, by definition, could not distinguish if the detector had any systematic bias. In this paper, we evaluate five of the seven existing EB corner detectors on a public dataset including extreme illumination conditions that have not been investigated before. Moreover, this evaluation is the first of its kind in terms of analysing not only such a high number of detectors, but also applying a unified procedure for all. Contrary to previous assessments, we employed both the intensity and trajectory information within the public dataset rather than only one of them. We show that a rigorous comparison among EB detectors can be performed without tedious manual labelling and even with challenging acquisition conditions. This study thus proposes the first standard unified EB corner evaluation procedure, which will enable better understanding of the underlying mechanisms of EB cameras and can therefore lead to more efficient EB corner detection techniques.
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spelling doaj.art-f253ff3e835c45018bf46eb779938f562023-12-03T12:16:21ZengMDPI AGJournal of Imaging2313-433X2021-02-01722510.3390/jimaging7020025Evaluation of Event-Based Corner DetectorsÖzgün Yılmaz0Camille Simon-Chane1Aymeric Histace2ETIS UMR 8051, CY Paris Cergy University, ENSEA, CNRS, F95000 Cergy, FranceETIS UMR 8051, CY Paris Cergy University, ENSEA, CNRS, F95000 Cergy, FranceETIS UMR 8051, CY Paris Cergy University, ENSEA, CNRS, F95000 Cergy, FranceBio-inspired Event-Based (EB) cameras are a promising new technology that outperforms standard frame-based cameras in extreme lighted and fast moving scenes. Already, a number of EB corner detection techniques have been developed; however, the performance of these EB corner detectors has only been evaluated based on a few author-selected criteria rather than on a unified common basis, as proposed here. Moreover, their experimental conditions are mainly limited to less interesting operational regions of the EB camera (on which frame-based cameras can also operate), and some of the criteria, by definition, could not distinguish if the detector had any systematic bias. In this paper, we evaluate five of the seven existing EB corner detectors on a public dataset including extreme illumination conditions that have not been investigated before. Moreover, this evaluation is the first of its kind in terms of analysing not only such a high number of detectors, but also applying a unified procedure for all. Contrary to previous assessments, we employed both the intensity and trajectory information within the public dataset rather than only one of them. We show that a rigorous comparison among EB detectors can be performed without tedious manual labelling and even with challenging acquisition conditions. This study thus proposes the first standard unified EB corner evaluation procedure, which will enable better understanding of the underlying mechanisms of EB cameras and can therefore lead to more efficient EB corner detection techniques.https://www.mdpi.com/2313-433X/7/2/25event-based cameracorner detectorevent-based corners
spellingShingle Özgün Yılmaz
Camille Simon-Chane
Aymeric Histace
Evaluation of Event-Based Corner Detectors
Journal of Imaging
event-based camera
corner detector
event-based corners
title Evaluation of Event-Based Corner Detectors
title_full Evaluation of Event-Based Corner Detectors
title_fullStr Evaluation of Event-Based Corner Detectors
title_full_unstemmed Evaluation of Event-Based Corner Detectors
title_short Evaluation of Event-Based Corner Detectors
title_sort evaluation of event based corner detectors
topic event-based camera
corner detector
event-based corners
url https://www.mdpi.com/2313-433X/7/2/25
work_keys_str_mv AT ozgunyılmaz evaluationofeventbasedcornerdetectors
AT camillesimonchane evaluationofeventbasedcornerdetectors
AT aymerichistace evaluationofeventbasedcornerdetectors