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Zonghao Guo

15 accepted papers

2026

FlexiVideo: Variation-Aware Temporal Dynamics Modeling for Efficient Video Understanding

CVPR 2026

Natural videos exhibit heterogeneous temporal dynamics, with certain segments undergoing high-dynamic scene transitions and others dominated by low-dynamic visual changes. However, treating all frames identically, a common practice in most MLLMs, leads to redundant visual encoding, which results in

Cited by 0SourcecodeScholar
2026

GeoViS: Geospatially Rewarded Visual Search for Remote Sensing Visual Grounding

CVPR 2026

Recent advances in multimodal large language models (MLLMs) have led to remarkable progress in visual grounding, enabling fine-grained cross-modal alignment between textual queries and image regions. However, transferring such capabilities to remote sensing imagery remains challenging, as targets ar

Cited by 0SourcecodeScholar
2026

LLaVA-UHD v2: Exploiting Hierarchical Vision Granularity in MLLMs via Inverse Semantic Pyramid

AAAI 2026technical

Vision transformers (ViTs) are widely employed in multimodal large language models (MLLMs) for visual encoding. However, they exhibit inferior performance on tasks regarding fine-grained visual perception. We attribute this to the inner limitations of ViTs in capturing diverse visual semantic level

Cited by 0SourcePDFScholar
2026

MERLIN: Building Low-SNR Robust Multimodal LLMs for Electromagnetic Signals

CVPR 2026

The paradigm of Multimodal Large Language Models (MLLMs) offers a promising blueprint for advancing the electromagnetic (EM) domain. However, prevailing approaches often deviate from the native MLLM paradigm, instead using task-specific or pipelined architectures that lead to fundamental limitations

Cited by 0SourcecodeScholar
2026

MiniCPM-V 4.5: Cooking Efficient MLLMs via Architecture, Data, and Training Recipe

CVPR 2026

Multimodal Large Language Models (MLLMs) are undergoing rapid progress and represent the frontier of AI development. However, their training and inference efficiency have emerged as a core bottleneck in making MLLMs more accessible and scalable. To address the challenges, we present MiniCPM-V 4.5, a

Cited by 0SourcecodeScholar
2025

GeoLLaVA-8K: Scaling Remote-Sensing Multimodal Large Language Models to 8K Resolution

NeurIPS 2025spotlight

Ultra-high-resolution (UHR) remote sensing (RS) imagery offers valuable data for Earth observation but pose challenges for existing multimodal foundation models due to two key bottlenecks: (1) limited availability of UHR training data, and (2) token explosion caused by the large image size. To addre…

Cited by 0SourcecodeScholar
2025

Harnessing Massive Satellite Imagery with Efficient Masked Image Modeling

ICCV 2025poster

Masked Image Modeling (MIM) has become an essential method for building foundational visual models in remote sensing (RS). However, the limitations in size and diversity of existing RS datasets restrict the ability of MIM methods to learn generalizable representations. Additionally, conventional MIM…

2025

Migician: Revealing the Magic of Free-Form Multi-Image Grounding in Multimodal Large Language Models

ACL 2025finding

The recent advancement of Multimodal Large Language Models (MLLMs) has significantly improved their fine-grained perception of single images and general comprehension across multiple images. However, existing MLLMs still face challenges in achieving precise grounding in complex multi-image scenarios…

2025

Video-R1: Reinforcing Video Reasoning in MLLMs

NeurIPS 2025poster

Inspired by DeepSeek-R1's success in eliciting reasoning abilities through rule-based reinforcement learning (RL), we introduce Video-R1 as the first attempt to systematically explore the R1 paradigm for incentivizing video reasoning within multimodal large language models (MLLMs). However, directly…

Cited by 0SourcecodeScholar
2025

XLRS-Bench: Could Your Multimodal LLMs Understand Extremely Large Ultra-High-Resolution Remote Sensing Imagery?

CVPR 2025highlight

The astonishing breakthrough of multimodal large language models (MLLMs) has necessitated new benchmarks to quantitatively assess their capabilities, reveal their limitations, and indicate future research directions. However, this is challenging in the context of remote sensing (RS), since the image…

2024

ControlCap: Controllable Region-level Captioning

ECCV 2024poster

"Region-level captioning is challenged by the caption degeneration issue, which refers to that pre-trained multimodal models tend to predict the most frequent captions but miss the less frequent ones. In this study, we propose a controllable region-level captioning (ControlCap) approach, which intro…

2024

LLaVA-UHD: an LMM Perceiving any Aspect Ratio and High-Resolution Images

ECCV 2024poster

"Visual encoding constitutes the basis of large multimodal models (LMMs) in understanding the visual world. Conventional LMMs process images in fixed sizes and limited resolutions, while recent explorations in this direction are limited in adaptivity, efficiency, and even correctness. In this work,…

2023

AttentionShift: Iteratively Estimated Part-Based Attention Map for Pointly Supervised Instance Segmentation

CVPR 2023poster

Pointly supervised instance segmentation (PSIS) learns to segment objects using a single point within the object extent as supervision. Challenged by the non-negligible semantic variance between object parts, however, the single supervision point causes semantic bias and false segmentation. In this…

Cited by 12SourcePDFScholar
2023

Integrally Migrating Pre-trained Transformer Encoder-decoders for Visual Object Detection

ICCV 2023poster

Modern object detectors have taken the advantages of backbone networks pre-trained on large scale datasets. Except for the backbone networks, however, other components such as the detector head and the feature pyramid network (FPN) remain trained from scratch, which hinders the generalization capaci…

Cited by 36PDFcodeScholar
2021

Beyond Bounding-Box: Convex-Hull Feature Adaptation for Oriented and Densely Packed Object Detection

CVPR 2021poster

Detecting oriented and densely packed objects remains challenging for spatial feature aliasing caused by the intersection of reception fields between objects. In this paper, we propose a convex-hull feature adaptation (CFA) approach for configuring convolutional features in accordance with oriented…

Cited by 222PDFcodeScholar