Context-Guided Spatial Feature Reconstruction for Efficient Semantic Segmentation

Fuente: arXiv
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Autores principales: Ni, Zhenliang, Chen, Xinghao, Zhai, Yingjie, Tang, Yehui, Wang, Yunhe
Formato: Preprint
Publicado: 2024
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author Ni, Zhenliang
Chen, Xinghao
Zhai, Yingjie
Tang, Yehui
Wang, Yunhe
author_facet Ni, Zhenliang
Chen, Xinghao
Zhai, Yingjie
Tang, Yehui
Wang, Yunhe
contents Semantic segmentation is an important task for numerous applications but it is still quite challenging to achieve advanced performance with limited computational costs. In this paper, we present CGRSeg, an efficient yet competitive segmentation framework based on context-guided spatial feature reconstruction. A Rectangular Self-Calibration Module is carefully designed for spatial feature reconstruction and pyramid context extraction. It captures the axial global context in both horizontal and vertical directions to explicitly model rectangular key areas. A shape self-calibration function is designed to make the key areas closer to foreground objects. Besides, a lightweight Dynamic Prototype Guided head is proposed to improve the classification of foreground objects by explicit class embedding. Our CGRSeg is extensively evaluated on ADE20K, COCO-Stuff, and Pascal Context benchmarks, and achieves state-of-the-art semantic performance. Specifically, it achieves $43.6\%$ mIoU on ADE20K with only $4.0$ GFLOPs, which is $0.9\%$ and $2.5\%$ mIoU better than SeaFormer and SegNeXt but with about $38.0\%$ fewer GFLOPs. Code is available at https://github.com/nizhenliang/CGRSeg.
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publishDate 2024
record_format arxiv
spellingShingle Context-Guided Spatial Feature Reconstruction for Efficient Semantic Segmentation
Ni, Zhenliang
Chen, Xinghao
Zhai, Yingjie
Tang, Yehui
Wang, Yunhe
Computer Vision and Pattern Recognition
Semantic segmentation is an important task for numerous applications but it is still quite challenging to achieve advanced performance with limited computational costs. In this paper, we present CGRSeg, an efficient yet competitive segmentation framework based on context-guided spatial feature reconstruction. A Rectangular Self-Calibration Module is carefully designed for spatial feature reconstruction and pyramid context extraction. It captures the axial global context in both horizontal and vertical directions to explicitly model rectangular key areas. A shape self-calibration function is designed to make the key areas closer to foreground objects. Besides, a lightweight Dynamic Prototype Guided head is proposed to improve the classification of foreground objects by explicit class embedding. Our CGRSeg is extensively evaluated on ADE20K, COCO-Stuff, and Pascal Context benchmarks, and achieves state-of-the-art semantic performance. Specifically, it achieves $43.6\%$ mIoU on ADE20K with only $4.0$ GFLOPs, which is $0.9\%$ and $2.5\%$ mIoU better than SeaFormer and SegNeXt but with about $38.0\%$ fewer GFLOPs. Code is available at https://github.com/nizhenliang/CGRSeg.
title Context-Guided Spatial Feature Reconstruction for Efficient Semantic Segmentation
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2405.06228