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SegEarth-R1: Geospatial Pixel Reasoning via Large Language Model

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arxiv 2504.09644 v1 pith:OVKPPTWW submitted 2025-04-13 cs.CV

SegEarth-R1: Geospatial Pixel Reasoning via Large Language Model

classification cs.CV
keywords reasoningsegearth-r1implicitsegmentationlanguagemaskremotesensing
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Remote sensing has become critical for understanding environmental dynamics, urban planning, and disaster management. However, traditional remote sensing workflows often rely on explicit segmentation or detection methods, which struggle to handle complex, implicit queries that require reasoning over spatial context, domain knowledge, and implicit user intent. Motivated by this, we introduce a new task, \ie, geospatial pixel reasoning, which allows implicit querying and reasoning and generates the mask of the target region. To advance this task, we construct and release the first large-scale benchmark dataset called EarthReason, which comprises 5,434 manually annotated image masks with over 30,000 implicit question-answer pairs. Moreover, we propose SegEarth-R1, a simple yet effective language-guided segmentation baseline that integrates a hierarchical visual encoder, a large language model (LLM) for instruction parsing, and a tailored mask generator for spatial correlation. The design of SegEarth-R1 incorporates domain-specific adaptations, including aggressive visual token compression to handle ultra-high-resolution remote sensing images, a description projection module to fuse language and multi-scale features, and a streamlined mask prediction pipeline that directly queries description embeddings. Extensive experiments demonstrate that SegEarth-R1 achieves state-of-the-art performance on both reasoning and referring segmentation tasks, significantly outperforming traditional and LLM-based segmentation methods. Our data and code will be released at https://github.com/earth-insights/SegEarth-R1.

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Cited by 17 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Earth-OneVision: Extending Remote Sensing Multimodal Large Language Models to More Sensor Modalities and Tasks

    cs.CV 2026-06 unverdicted novelty 7.0

    Earth-OneVision is a unified 2B-parameter RS-MLLM supporting six modalities and nine tasks via FGVLA, SLIS, and PCMA mechanisms plus a 34M QA-pair dataset, reporting competitive or superior benchmark results versus la...

  2. DisasterBench: A Multimodal Benchmark for UAV-Based Disaster Response in Complex Environments

    cs.CV 2026-06 unverdicted novelty 7.0

    DisasterBench is a new multi-stage multimodal reasoning benchmark for UAV disaster response with 14 scenes and 9 tasks; the accompanying 2B DisasterVL model outperforms open-source MLLMs and approaches GPT-4o efficiency.

  3. AgroVG: A Large-Scale Multi-Source Benchmark for Agricultural Visual Grounding

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    AgroVG is a new multi-source benchmark for agricultural visual grounding formulated as generalized set prediction, with protocols for box and mask grounding across single-target, multi-target, and target-absent querie...

  4. PixDLM: A Dual-Path Multimodal Language Model for UAV Reasoning Segmentation

    cs.CV 2026-04 unverdicted novelty 7.0

    The work introduces the UAV Reasoning Segmentation task, the DRSeg benchmark dataset, and PixDLM as a baseline dual-path multimodal language model for reasoning-based segmentation in aerial imagery.

  5. RemoteAgent: Bridging Vague Human Intents and Earth Observation with RL-based Agentic MLLMs

    cs.CV 2026-04 unverdicted novelty 7.0

    RemoteAgent uses RL fine-tuning on VagueEO to align MLLMs for vague EO intent recognition, handling simple tasks internally and routing dense predictions to tools via Model Context Protocol.

  6. UniGeoSeg: Towards Unified Open-World Segmentation for Geospatial Scenes

    cs.CV 2025-11 conditional novelty 7.0

    UniGeoSeg releases the first million-scale dataset for instruction-driven remote sensing segmentation and a unified model that achieves state-of-the-art results with strong zero-shot generalization.

  7. GeoSelect: Spatial-Program Execution for Training-Free Referring Remote Sensing Image Segmentation

    cs.CV 2026-07 conditional novelty 6.5

    A training-free pipeline synthesises referring expressions into a typed geometric DSL, executes them over scored candidate boxes, and reaches 58.86 mIoU on RRSIS-D—over twice the previous training-free best.

  8. An Open-Source Benchmark and Baseline for Multi-temporal Referring Segmentation

    cs.CV 2026-05 conditional novelty 6.0

    Introduces MTRS task, MTRefSeg-21K benchmark of 21K image-text-mask triplets, and MTRefSeg-R1 LVLM baseline that outperforms standard models via two-stage change-aware training.

  9. RemoteZero: Geospatial Reasoning with Zero Human Annotations

    cs.CV 2026-05 unverdicted novelty 6.0

    RemoteZero replaces coordinate supervision with intrinsic semantic verification to enable box-free GRPO training and self-evolution for geospatial reasoning.

  10. Agentic AI for Remote Sensing: Technical Challenges and Research Directions

    cs.CV 2026-04 unverdicted novelty 6.0

    Agentic AI faces structural challenges in remote sensing due to geospatial data properties and workflow constraints, requiring EO-native agents built around structured state, tool-aware reasoning, and validity-aware e...

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    cs.CV 2026-04 unverdicted novelty 6.0

    RemoteShield improves robustness of Earth observation MLLMs by training on semantic equivalence clusters of clean and perturbed inputs via preference learning to maintain consistent reasoning under noise.

  12. PixDLM: A Dual-Path Multimodal Language Model for UAV Reasoning Segmentation

    cs.CV 2026-04 conditional novelty 6.0

    The paper defines UAV reasoning segmentation, releases DRSeg—10,000 aerial images with reasoning QA and masks—and shows its PixDLM baseline beats prior reasoning-segmentation models under fine-tuning.

  13. OSMDA: OpenStreetMap-based Domain Adaptation for Remote Sensing VLMs

    cs.CV 2026-03 conditional novelty 6.0

    A remote-sensing VLM can be adapted by having it read rendered OpenStreetMap maps paired with satellite images, then fine-tuning it on satellite images alone.

  14. More with Less: a Large Scale Remote Sensing VLM with a Simple Recipe

    cs.CV 2026-07 conditional novelty 5.0

    An unmodified general-purpose VLM trained with multi-task RL and a SAM3 tool reaches top results on most remote sensing zero-shot benchmarks, with gains the paper attributes to training-data diversity rather than arch...

  15. Agentic AI for Remote Sensing: Technical Challenges and Research Directions

    cs.CV 2026-04 unverdicted novelty 5.0

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  16. CangLing-KnowFlow: A Unified Knowledge-and-Flow-fused Agent for Comprehensive Remote Sensing Applications

    cs.AI 2025-12 reject novelty 5.0

    CangLing-KnowFlow combines a procedural knowledge base, dynamic workflow repair, and memory to beat ReAct/Reflexion on remote-sensing workflow tasks, but the benchmark is drawn from the same tasks used to build its kn...

  17. Agentic AI for Remote Sensing: Technical Challenges and Research Directions

    cs.CV 2026-04 unverdicted novelty 4.0

    Position paper identifies structural challenges in applying generic agentic AI to Earth Observation and outlines design principles for EO-native agents focused on geospatial state and validity.