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arXiv · 2607.04403

MambaRefine-CD: MambaVision with Region-Boundary Temporal Refinement

Dineth Perera·Thaariq Firdous·Oshadha Samarakoon·Roshan Godaliyadda·Parakrama Ekanayake·Vijitha Herath
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Abstract

Binary change detection in remote sensing requires both complete changed-region localization and accurate boundary delineation. We present MambaRefine-CD, a region-boundary temporal refinement framework built on a shared MambaVision encoder. The proposed D-RBI module constructs temporal evidence from paired features, absolute differences, and signed differences, then separates it into region and Sobel-conditioned boundary streams. Region features are enhanced with CRAM-lite and decoded by an adaptive receptive-field FPN, while the finest boundary stream guides a bounded residual refinement of the coarse prediction. Experiments on DSIFN-CD and WHU-CD show strong changed-class F1 and IoU under verified evaluation settings, and ablations support the contribution of signed temporal evidence and the full region-boundary refinement pipeline.

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Dineth Perera, Thaariq Firdous, Oshadha Samarakoon, Roshan Godaliyadda, Parakrama Ekanayake, Vijitha Herath. 2026-07-05. MambaRefine-CD: MambaVision with Region-Boundary Temporal Refinement. https://arxiv.org/abs/2607.04403

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