Importance Rank-Learning of Objects in Urban Scenes for Assisting Visually Impaired People

This paper examines an importance rank learning method of objects in urban scenes for assisting visually impaired people. Object detection methods have been used to assist visually impaired people in identifying obstacles in urban scenes, such as cars and trees. However, these existing methods are n...

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Main Authors: Yasuhiro Nitta, Mariko Isogawa, Ryo Yonetani, Maki Sugimoto
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10154050/
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author Yasuhiro Nitta
Mariko Isogawa
Ryo Yonetani
Maki Sugimoto
author_facet Yasuhiro Nitta
Mariko Isogawa
Ryo Yonetani
Maki Sugimoto
author_sort Yasuhiro Nitta
collection DOAJ
description This paper examines an importance rank learning method of objects in urban scenes for assisting visually impaired people. Object detection methods have been used to assist visually impaired people in identifying obstacles in urban scenes, such as cars and trees. However, these existing methods are not dedicated to predicting which obstacle is important. Thus, we propose a method that estimates the importance of objects and warns them to users in order of importance ranking. We introduce a neural network-based ranking estimation method to predict the importance ranking of objects. In particular, our method uses optical flow from the previous frame and region data of detected objects as input. It helps to consider states of moving objects (<italic>e.g.</italic>, cars, motorbikes, people) in a scene. Experimental results show that our model outperforms three other baselines qualitatively and quantitatively. Furthermore, our method was highly evaluated than the baseline methods by qualified caregivers of the visually impaired people.
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spelling doaj.art-42867c8a4b4249d4b3fded160111c5a42023-06-27T23:00:39ZengIEEEIEEE Access2169-35362023-01-0111629326294110.1109/ACCESS.2023.328714710154050Importance Rank-Learning of Objects in Urban Scenes for Assisting Visually Impaired PeopleYasuhiro Nitta0https://orcid.org/0009-0005-9985-1247Mariko Isogawa1https://orcid.org/0000-0001-9560-0276Ryo Yonetani2https://orcid.org/0000-0002-2724-6233Maki Sugimoto3https://orcid.org/0000-0002-8383-9228Graduate School of Science and Technology, Keio University, Yokohama, Kanagawa, JapanGraduate School of Science and Technology, Keio University, Yokohama, Kanagawa, JapanGraduate School of Science and Technology, Keio University, Yokohama, Kanagawa, JapanGraduate School of Science and Technology, Keio University, Yokohama, Kanagawa, JapanThis paper examines an importance rank learning method of objects in urban scenes for assisting visually impaired people. Object detection methods have been used to assist visually impaired people in identifying obstacles in urban scenes, such as cars and trees. However, these existing methods are not dedicated to predicting which obstacle is important. Thus, we propose a method that estimates the importance of objects and warns them to users in order of importance ranking. We introduce a neural network-based ranking estimation method to predict the importance ranking of objects. In particular, our method uses optical flow from the previous frame and region data of detected objects as input. It helps to consider states of moving objects (<italic>e.g.</italic>, cars, motorbikes, people) in a scene. Experimental results show that our model outperforms three other baselines qualitatively and quantitatively. Furthermore, our method was highly evaluated than the baseline methods by qualified caregivers of the visually impaired people.https://ieeexplore.ieee.org/document/10154050/Visually impaired peopleobject detectionlearning-to-rankdifferentiable sorting
spellingShingle Yasuhiro Nitta
Mariko Isogawa
Ryo Yonetani
Maki Sugimoto
Importance Rank-Learning of Objects in Urban Scenes for Assisting Visually Impaired People
IEEE Access
Visually impaired people
object detection
learning-to-rank
differentiable sorting
title Importance Rank-Learning of Objects in Urban Scenes for Assisting Visually Impaired People
title_full Importance Rank-Learning of Objects in Urban Scenes for Assisting Visually Impaired People
title_fullStr Importance Rank-Learning of Objects in Urban Scenes for Assisting Visually Impaired People
title_full_unstemmed Importance Rank-Learning of Objects in Urban Scenes for Assisting Visually Impaired People
title_short Importance Rank-Learning of Objects in Urban Scenes for Assisting Visually Impaired People
title_sort importance rank learning of objects in urban scenes for assisting visually impaired people
topic Visually impaired people
object detection
learning-to-rank
differentiable sorting
url https://ieeexplore.ieee.org/document/10154050/
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