Hierarchical Visual Place Recognition Based on Semantic-Aggregation

A major challenge in place recognition is to be robust against viewpoint changes and appearance changes caused by self and environmental variations. Humans achieve this by recognizing objects and their relationships in the scene under different conditions. Inspired by this, we propose a hierarchical...

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Main Authors: Baifan Chen, Xiaoting Song, Hongyu Shen, Tao Lu
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/20/9540
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author Baifan Chen
Xiaoting Song
Hongyu Shen
Tao Lu
author_facet Baifan Chen
Xiaoting Song
Hongyu Shen
Tao Lu
author_sort Baifan Chen
collection DOAJ
description A major challenge in place recognition is to be robust against viewpoint changes and appearance changes caused by self and environmental variations. Humans achieve this by recognizing objects and their relationships in the scene under different conditions. Inspired by this, we propose a hierarchical visual place recognition pipeline based on semantic-aggregation and scene understanding for the images. The pipeline contains coarse matching and fine matching. Semantic-aggregation happens in residual aggregation of visual information and semantic information in coarse matching, and semantic association of semantic edges in fine matching. Through the above two processes, we realized a robust coarse-to-fine pipeline of visual place recognition across viewpoint and condition variations. Experimental results on the benchmark datasets show that our method performs better than several state-of-the-art methods, improving the robustness against severe viewpoint changes and appearance changes while maintaining good matching-time performance. Moreover, we prove that it is possible for a computer to realize place recognition based on scene understanding.
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spelling doaj.art-7e05be88ec5f4e8aadb1046006b6c3af2023-11-22T17:20:18ZengMDPI AGApplied Sciences2076-34172021-10-011120954010.3390/app11209540Hierarchical Visual Place Recognition Based on Semantic-AggregationBaifan Chen0Xiaoting Song1Hongyu Shen2Tao Lu3School of Automation, Central South University, Changsha 410083, ChinaSchool of Automation, Central South University, Changsha 410083, ChinaSchool of Automation, Central South University, Changsha 410083, ChinaHubei Key Laboratory of Intelligent Robot, Wuhan Institute of Technology, School of Computer Science and Engineering, Wuhan 430205, ChinaA major challenge in place recognition is to be robust against viewpoint changes and appearance changes caused by self and environmental variations. Humans achieve this by recognizing objects and their relationships in the scene under different conditions. Inspired by this, we propose a hierarchical visual place recognition pipeline based on semantic-aggregation and scene understanding for the images. The pipeline contains coarse matching and fine matching. Semantic-aggregation happens in residual aggregation of visual information and semantic information in coarse matching, and semantic association of semantic edges in fine matching. Through the above two processes, we realized a robust coarse-to-fine pipeline of visual place recognition across viewpoint and condition variations. Experimental results on the benchmark datasets show that our method performs better than several state-of-the-art methods, improving the robustness against severe viewpoint changes and appearance changes while maintaining good matching-time performance. Moreover, we prove that it is possible for a computer to realize place recognition based on scene understanding.https://www.mdpi.com/2076-3417/11/20/9540hierarchical place recognitionsemantic aggregationsemantic edges
spellingShingle Baifan Chen
Xiaoting Song
Hongyu Shen
Tao Lu
Hierarchical Visual Place Recognition Based on Semantic-Aggregation
Applied Sciences
hierarchical place recognition
semantic aggregation
semantic edges
title Hierarchical Visual Place Recognition Based on Semantic-Aggregation
title_full Hierarchical Visual Place Recognition Based on Semantic-Aggregation
title_fullStr Hierarchical Visual Place Recognition Based on Semantic-Aggregation
title_full_unstemmed Hierarchical Visual Place Recognition Based on Semantic-Aggregation
title_short Hierarchical Visual Place Recognition Based on Semantic-Aggregation
title_sort hierarchical visual place recognition based on semantic aggregation
topic hierarchical place recognition
semantic aggregation
semantic edges
url https://www.mdpi.com/2076-3417/11/20/9540
work_keys_str_mv AT baifanchen hierarchicalvisualplacerecognitionbasedonsemanticaggregation
AT xiaotingsong hierarchicalvisualplacerecognitionbasedonsemanticaggregation
AT hongyushen hierarchicalvisualplacerecognitionbasedonsemanticaggregation
AT taolu hierarchicalvisualplacerecognitionbasedonsemanticaggregation