PairingNet: A Learning-based Pair-searching and -matching Network for Image Fragments

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Main Authors: Zhou, Rixin, Xia, Ding, Zhang, Yi, Pang, Honglin, Yang, Xi, Li, Chuntao
Format: Preprint
Published: 2023
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author Zhou, Rixin
Xia, Ding
Zhang, Yi
Pang, Honglin
Yang, Xi
Li, Chuntao
author_facet Zhou, Rixin
Xia, Ding
Zhang, Yi
Pang, Honglin
Yang, Xi
Li, Chuntao
contents In this paper, we propose a learning-based image fragment pair-searching and -matching approach to solve the challenging restoration problem. Existing works use rule-based methods to match similar contour shapes or textures, which are always difficult to tune hyperparameters for extensive data and computationally time-consuming. Therefore, we propose a neural network that can effectively utilize neighbor textures with contour shape information to fundamentally improve performance. First, we employ a graph-based network to extract the local contour and texture features of fragments. Then, for the pair-searching task, we adopt a linear transformer-based module to integrate these local features and use contrastive loss to encode the global features of each fragment. For the pair-matching task, we design a weighted fusion module to dynamically fuse extracted local contour and texture features, and formulate a similarity matrix for each pair of fragments to calculate the matching score and infer the adjacent segment of contours. To faithfully evaluate our proposed network, we created a new image fragment dataset through an algorithm we designed that tears complete images into irregular fragments. The experimental results show that our proposed network achieves excellent pair-searching accuracy, reduces matching errors, and significantly reduces computational time. Details, sourcecode, and data are available in our supplementary material.
format Preprint
id arxiv_https___arxiv_org_abs_2312_08704
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle PairingNet: A Learning-based Pair-searching and -matching Network for Image Fragments
Zhou, Rixin
Xia, Ding
Zhang, Yi
Pang, Honglin
Yang, Xi
Li, Chuntao
Computer Vision and Pattern Recognition
Graphics
In this paper, we propose a learning-based image fragment pair-searching and -matching approach to solve the challenging restoration problem. Existing works use rule-based methods to match similar contour shapes or textures, which are always difficult to tune hyperparameters for extensive data and computationally time-consuming. Therefore, we propose a neural network that can effectively utilize neighbor textures with contour shape information to fundamentally improve performance. First, we employ a graph-based network to extract the local contour and texture features of fragments. Then, for the pair-searching task, we adopt a linear transformer-based module to integrate these local features and use contrastive loss to encode the global features of each fragment. For the pair-matching task, we design a weighted fusion module to dynamically fuse extracted local contour and texture features, and formulate a similarity matrix for each pair of fragments to calculate the matching score and infer the adjacent segment of contours. To faithfully evaluate our proposed network, we created a new image fragment dataset through an algorithm we designed that tears complete images into irregular fragments. The experimental results show that our proposed network achieves excellent pair-searching accuracy, reduces matching errors, and significantly reduces computational time. Details, sourcecode, and data are available in our supplementary material.
title PairingNet: A Learning-based Pair-searching and -matching Network for Image Fragments
topic Computer Vision and Pattern Recognition
Graphics
url https://arxiv.org/abs/2312.08704