Breaking the Resource Wall: Geometry-Guided Sequence Modeling for Efficient Semantic Segmentation

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Hauptverfasser: Chan, Sheng-Wei, Pan, Hsin-Jui, Shen, Chun-Po, Lin, Chia-Min, Wang, Yung-Che, Chiang, Jen-Shiun
Format: Preprint
Veröffentlicht: 2026
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author Chan, Sheng-Wei
Pan, Hsin-Jui
Shen, Chun-Po
Lin, Chia-Min
Wang, Yung-Che
Chiang, Jen-Shiun
author_facet Chan, Sheng-Wei
Pan, Hsin-Jui
Shen, Chun-Po
Lin, Chia-Min
Wang, Yung-Che
Chiang, Jen-Shiun
contents High-performance semantic segmentation has achieved significant progress in recent years, often driven by increasingly large backbones and higher computational budgets. While effective, such approaches introduce substantial computational overhead and limit accessibility under constrained hardware settings. In this paper, we propose DGM-Net (Directional Geometric Mamba Network), an efficient architecture that improves modeling capability through structural design rather than increasing model capacity. We introduce Directional Geometric Mamba (G-Mamba), a linear-complexity O(N) operator as an alternative to conventional context modeling modules such as ASPP and PPM. To further enhance structural awareness in state space model (SSM)-based modeling, we design the DGM-Module, which extracts centripetal flow fields and topological skeletons to guide the scanning process and improve boundary preservation. Without relying on large-scale pretraining or heavy backbone scaling, DGM-Net achieves 80.8% mIoU within 28k iterations, 82.3% mIoU on Cityscapes test set, and 45.24% mIoU on ADE20K. In addition, the model maintains stable performance under constrained hardware settings (e.g., batch size of 2 on 8GB VRAM), highlighting its efficiency and practicality. These results demonstrate that incorporating geometric guidance into SSM-based architectures provides an effective and resource-efficient direction for semantic segmentation.
format Preprint
id arxiv_https___arxiv_org_abs_2604_23399
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Breaking the Resource Wall: Geometry-Guided Sequence Modeling for Efficient Semantic Segmentation
Chan, Sheng-Wei
Pan, Hsin-Jui
Shen, Chun-Po
Lin, Chia-Min
Wang, Yung-Che
Chiang, Jen-Shiun
Computer Vision and Pattern Recognition
I.2.10
High-performance semantic segmentation has achieved significant progress in recent years, often driven by increasingly large backbones and higher computational budgets. While effective, such approaches introduce substantial computational overhead and limit accessibility under constrained hardware settings. In this paper, we propose DGM-Net (Directional Geometric Mamba Network), an efficient architecture that improves modeling capability through structural design rather than increasing model capacity. We introduce Directional Geometric Mamba (G-Mamba), a linear-complexity O(N) operator as an alternative to conventional context modeling modules such as ASPP and PPM. To further enhance structural awareness in state space model (SSM)-based modeling, we design the DGM-Module, which extracts centripetal flow fields and topological skeletons to guide the scanning process and improve boundary preservation. Without relying on large-scale pretraining or heavy backbone scaling, DGM-Net achieves 80.8% mIoU within 28k iterations, 82.3% mIoU on Cityscapes test set, and 45.24% mIoU on ADE20K. In addition, the model maintains stable performance under constrained hardware settings (e.g., batch size of 2 on 8GB VRAM), highlighting its efficiency and practicality. These results demonstrate that incorporating geometric guidance into SSM-based architectures provides an effective and resource-efficient direction for semantic segmentation.
title Breaking the Resource Wall: Geometry-Guided Sequence Modeling for Efficient Semantic Segmentation
topic Computer Vision and Pattern Recognition
I.2.10
url https://arxiv.org/abs/2604.23399