Learning Robust Shape-Based Features for Domain Generalization

Domain generalization is a challenging problem of learning models that can generalize to novel testing domains which are unavailable during training and follow different distributions from training domains. In this paper, we introduce a simple but effective method for domain generalization, which is...

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Main Authors: Yexun Zhang, Ya Zhang, Qinwei Xu, Ruipeng Zhang
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9050708/
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author Yexun Zhang
Ya Zhang
Qinwei Xu
Ruipeng Zhang
author_facet Yexun Zhang
Ya Zhang
Qinwei Xu
Ruipeng Zhang
author_sort Yexun Zhang
collection DOAJ
description Domain generalization is a challenging problem of learning models that can generalize to novel testing domains which are unavailable during training and follow different distributions from training domains. In this paper, we introduce a simple but effective method for domain generalization, which is based on the object shape hypothesis. The main idea is from some recent studies which demonstrate that leading the network to focus more on the object shape and recognizing objects through shape-based features are more significant and robust. To achieve this, we first stylize source domain images into randomly sampled styles through a style transfer network and then use both the stylized images and original source domain images to learn the classification model. With images of the same content but different styles (textures), we expect the network to classify according to the global object shape rather than local textures and further transfer the object shape knowledge to novel domains. By this way, the generalization ability of the classification model will be improved. We conduct extensive experiments on PACS, VLCS and OfficeHome benchmarks and both the quantitative and qualitative analysis demonstrate the effectiveness of the proposed method.
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spelling doaj.art-09203d17f7f74b8ea5f17d89b7573b662022-12-21T17:14:40ZengIEEEIEEE Access2169-35362020-01-018637486375610.1109/ACCESS.2020.29842799050708Learning Robust Shape-Based Features for Domain GeneralizationYexun Zhang0https://orcid.org/0000-0001-7306-1865Ya Zhang1Qinwei Xu2Ruipeng Zhang3Cooperative Medianet Innovation Center, Shanghai Jiao Tong University, Shanghai, ChinaCooperative Medianet Innovation Center, Shanghai Jiao Tong University, Shanghai, ChinaCooperative Medianet Innovation Center, Shanghai Jiao Tong University, Shanghai, ChinaCooperative Medianet Innovation Center, Shanghai Jiao Tong University, Shanghai, ChinaDomain generalization is a challenging problem of learning models that can generalize to novel testing domains which are unavailable during training and follow different distributions from training domains. In this paper, we introduce a simple but effective method for domain generalization, which is based on the object shape hypothesis. The main idea is from some recent studies which demonstrate that leading the network to focus more on the object shape and recognizing objects through shape-based features are more significant and robust. To achieve this, we first stylize source domain images into randomly sampled styles through a style transfer network and then use both the stylized images and original source domain images to learn the classification model. With images of the same content but different styles (textures), we expect the network to classify according to the global object shape rather than local textures and further transfer the object shape knowledge to novel domains. By this way, the generalization ability of the classification model will be improved. We conduct extensive experiments on PACS, VLCS and OfficeHome benchmarks and both the quantitative and qualitative analysis demonstrate the effectiveness of the proposed method.https://ieeexplore.ieee.org/document/9050708/Domain generalizationlearning shape-based features
spellingShingle Yexun Zhang
Ya Zhang
Qinwei Xu
Ruipeng Zhang
Learning Robust Shape-Based Features for Domain Generalization
IEEE Access
Domain generalization
learning shape-based features
title Learning Robust Shape-Based Features for Domain Generalization
title_full Learning Robust Shape-Based Features for Domain Generalization
title_fullStr Learning Robust Shape-Based Features for Domain Generalization
title_full_unstemmed Learning Robust Shape-Based Features for Domain Generalization
title_short Learning Robust Shape-Based Features for Domain Generalization
title_sort learning robust shape based features for domain generalization
topic Domain generalization
learning shape-based features
url https://ieeexplore.ieee.org/document/9050708/
work_keys_str_mv AT yexunzhang learningrobustshapebasedfeaturesfordomaingeneralization
AT yazhang learningrobustshapebasedfeaturesfordomaingeneralization
AT qinweixu learningrobustshapebasedfeaturesfordomaingeneralization
AT ruipengzhang learningrobustshapebasedfeaturesfordomaingeneralization