Bridging the Gap between Labeled and Unlabeled Data via Unified Flow with Feature Memory Bank

• URL: http://arxiv.org/abs/2608.16681v1
• Date: Mon, 17 Aug 2026 15:04:25 GMT
• Title: Bridging the Gap between Labeled and Unlabeled Data via Unified Flow with Feature Memory Bank
• Abstract summary: We propose a novel remote sensing (RS) $textS4$ method via unified flow with feature memory bank (UFFM)<n>UFFM comprises two key innovations: unified flow (UF) and feature memory bank (FMB)
• Score: 61.984964386778444
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Although semi-supervised semantic segmentation ($\text{S}^4$) utilizes abundant unlabeled data to reduce manual labeling burdens, independent training of labeled and unlabeled data causes the former to dominate, which severely degrades pseudo-label quality. To address this challenges, we propose a novel remote sensing (RS) $\text{S}^4$ method via unified flow with feature memory bank (UFFM). Specifically, UFFM comprises two key innovations: unified flow (UF) and feature memory bank (FMB). The UF is a new training flow that generates less biased pseudo-labels by combining an external visual foundation model (VFM) with an RS domain teacher, and jointly optimizes labeled and pseudo-labeled data under a unified training objective. The FMB is a novel memory module for $\text{S}^4$ that dynamically updates class-specific features during training and reduces the feature discrepancy between labeled and unlabeled data through class-feature alignment. To verify the effectiveness of our model, we conduct extensive experiments on RS datasets. The experimental results show the superiority of our method over SOTA $\text{S}^4$ methods. Moreover, the results demonstrate the effectiveness of our contributions in bridging the optimization and feature representation gap between labeled and unlabeled data. Our code is released at \href{https://github.com/wangshanwen001/RS-UFFM}{https://github.com/wangshanwen001/RS-UFFM}.

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