DOMR: Establishing Cross-View Segmentation via Dense Object Matching

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Hauptverfasser: Liao, Jitong, Gao, Yulu, Huang, Shaofei, Gao, Jialin, Lei, Jie, Liang, Ronghua, Liu, Si
Format: Preprint
Veröffentlicht: 2025
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author Liao, Jitong
Gao, Yulu
Huang, Shaofei
Gao, Jialin
Lei, Jie
Liang, Ronghua
Liu, Si
author_facet Liao, Jitong
Gao, Yulu
Huang, Shaofei
Gao, Jialin
Lei, Jie
Liang, Ronghua
Liu, Si
contents Cross-view object correspondence involves matching objects between egocentric (first-person) and exocentric (third-person) views. It is a critical yet challenging task for visual understanding. In this work, we propose the Dense Object Matching and Refinement (DOMR) framework to establish dense object correspondences across views. The framework centers around the Dense Object Matcher (DOM) module, which jointly models multiple objects. Unlike methods that directly match individual object masks to image features, DOM leverages both positional and semantic relationships among objects to find correspondences. DOM integrates a proposal generation module with a dense matching module that jointly encodes visual, spatial, and semantic cues, explicitly constructing inter-object relationships to achieve dense matching among objects. Furthermore, we combine DOM with a mask refinement head designed to improve the completeness and accuracy of the predicted masks, forming the complete DOMR framework. Extensive evaluations on the Ego-Exo4D benchmark demonstrate that our approach achieves state-of-the-art performance with a mean IoU of 49.7% on Ego$\to$Exo and 55.2% on Exo$\to$Ego. These results outperform those of previous methods by 5.8% and 4.3%, respectively, validating the effectiveness of our integrated approach for cross-view understanding.
format Preprint
id arxiv_https___arxiv_org_abs_2508_04050
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle DOMR: Establishing Cross-View Segmentation via Dense Object Matching
Liao, Jitong
Gao, Yulu
Huang, Shaofei
Gao, Jialin
Lei, Jie
Liang, Ronghua
Liu, Si
Computer Vision and Pattern Recognition
Cross-view object correspondence involves matching objects between egocentric (first-person) and exocentric (third-person) views. It is a critical yet challenging task for visual understanding. In this work, we propose the Dense Object Matching and Refinement (DOMR) framework to establish dense object correspondences across views. The framework centers around the Dense Object Matcher (DOM) module, which jointly models multiple objects. Unlike methods that directly match individual object masks to image features, DOM leverages both positional and semantic relationships among objects to find correspondences. DOM integrates a proposal generation module with a dense matching module that jointly encodes visual, spatial, and semantic cues, explicitly constructing inter-object relationships to achieve dense matching among objects. Furthermore, we combine DOM with a mask refinement head designed to improve the completeness and accuracy of the predicted masks, forming the complete DOMR framework. Extensive evaluations on the Ego-Exo4D benchmark demonstrate that our approach achieves state-of-the-art performance with a mean IoU of 49.7% on Ego$\to$Exo and 55.2% on Exo$\to$Ego. These results outperform those of previous methods by 5.8% and 4.3%, respectively, validating the effectiveness of our integrated approach for cross-view understanding.
title DOMR: Establishing Cross-View Segmentation via Dense Object Matching
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2508.04050