Detection and Measurement of Hailstones with Multimodal Large Language Models

This study demonstrates that pre-trained multimodal large language models, particularly when enhanced with two-stage prompting strategies that leverage reference objects, can effectively detect and measure hailstone diameters from crowdsourced social media images with an average error of 1.12cm, offering a promising complement to traditional hail sensors for rapid severe weather assessment.

Moritz Alker, David C. Schedl, Andreas Stöckl2026-02-27🤖 cs.AI

Deforming Videos to Masks: Flow Matching for Referring Video Segmentation

The paper proposes FlowRVS, a novel one-stage generative framework that reformulates Referring Video Object Segmentation as a language-guided continuous flow deformation problem, leveraging pretrained text-to-video models to achieve state-of-the-art performance by directly mapping video representations to target masks while overcoming the limitations of traditional cascaded approaches.

Zanyi Wang, Dengyang Jiang, Liuzhuozheng Li + 6 more2026-02-27💻 cs

Learning with less: label-efficient land cover classification at very high spatial resolution using self-supervised deep learning

This study demonstrates that self-supervised deep learning, specifically the "Bootstrap Your Own Latent" strategy, enables highly accurate statewide 1-meter land cover classification using only 1,000 annotated patches, effectively overcoming the data scarcity barrier for large-scale, high-resolution mapping.

Dakota Hester, Vitor S. Martins, Lucas B. Ferreira + 1 more2026-02-27💻 cs

Q2^2: Quantization-Aware Gradient Balancing and Attention Alignment for Low-Bit Quantization

This paper introduces Q2^2, a training-only framework that addresses performance degradation in low-bit quantization for complex visual tasks by mitigating gradient imbalance at feature fusion stages through dynamic gradient balancing and attention distribution alignment, thereby significantly improving object detection and image segmentation accuracy without inference-time overhead.

Zhaoyang Wang, Dong Wang2026-02-27🤖 cs.AI