FoveaTree: Information-Density Trees for Query-Guided Visual Token Pruning in Video Large Language Models
On the map: Efficient LLM inference and serving → Visual token pruning in multimodal models
Abstract (arXiv)
Video large language models (Video LLMs) encode each frame into hundreds of visual tokens, making video inference expensive. Existing methods reduce this cost through similarity-based merging or attention-based selection but face two challenges: Hierarchy-blind Pruning, which overlooks regional compressibility and can discard critical evidence, and Attention Drift, where positional effects and attention sinks shift text-to-vision attention away from task relevance. We propose FoveaTree, a two-stage, training-free visual-token pruning framework. First, Merge-Gain Density Estimation measures the feature distortion caused by regional merging and constructs a quadtree-derived density map to guide token dropping, merging, and retention. Second, Attention Tree Pruning uses the surviving units and inherited tree topology to refine text-to-vision attention in intermediate LLM layers, preserving relevant regional evidence while removing low-relevance content. We evaluate FoveaTree on InternVL3.5-8B and Qwen3-VL-8B across five video question-answering benchmarks and one captioning benchmark at 50%, 30%, and 10% visual-token retention. FoveaTree consistently achieves overall state-of-the-art performance across the evaluated settings, offering a strong accuracy-efficiency trade-off.
Key facts. No citing papers in the map yet (data through 14 Oct 2026). Placed in Visual token pruning in multimodal models, one of 12 directions in Efficient LLM inference and serving. Builds on 80 of its 90 references that are in the map. First posted on arXiv 12 Oct 2026.
Builds on
80 of 90 references.
Closest ancestors · 19
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- 2025Don't Just Chase "Highlighted Tokens" in MLLMs: Revisiting Visual Holistic Context Retention3 Oct
- 2025Attention Debiasing for Token Pruning in Vision Language Models25 Aug
- 2025Multi-Granular Spatio-Temporal Token Merging for Training-Free Acceleration of Video LLMs10 Jul
- 2025Stop Looking for Important Tokens in Multimodal Language Models: Duplication Matters More17 Feb
- 2024FrameFusion: Combining Similarity and Importance for Video Token Reduction on Large Vision Language Models30 Dec
- 2024Feather the Throttle: Revisiting Visual Token Pruning for Vision-Language Model Acceleration17 Dec
- 2024Beyond Text-Visual Attention: Exploiting Visual Cues for Effective Token Pruning in VLMs2 Dec
- 2024ATP-LLaVA: Adaptive Token Pruning for Large Vision Language Models30 Nov
- 2024FocusLLaVA: A Coarse-to-Fine Approach for Efficient and Effective Visual Token Compression21 Nov
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- 2024VL-Cache: Sparsity and Modality-Aware KV Cache Compression for Vision-Language Model Inference Acceleration29 Oct
- 2024ZipVL: Efficient Large Vision-Language Models with Dynamic Token Sparsification11 Oct
- 2024HiRED: Attention-Guided Token Dropping for Efficient Inference of High-Resolution Vision-Language Models20 Aug
- 2024DeCo: Decoupling Token Compression from Semantic Abstraction in Multimodal Large Language Models31 May
- 2024LLaVA-PruMerge: Adaptive Token Reduction for Efficient Large Multimodal Models22 Mar
- 2024An Image is Worth 1/2 Tokens After Layer 2: Plug-and-Play Inference Acceleration for Large Vision-Language Models11 Mar
- 2024MADTP: Multimodal Alignment-Guided Dynamic Token Pruning for Accelerating Vision-Language Transformer5 Mar
Other references · 61
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- 2021Learning Transferable Visual Models From Natural Language Supervisioncited by 33,744
- 2020An Image is Worth 16x16 Words: Transformers for Image Recognition at Scalecited by 30,186
- 2021Swin Transformer: Hierarchical Vision Transformer using Shifted Windowscited by 12,139
- 2023DINOv2: Learning Robust Visual Features without Supervisioncited by 7,974
- 2023Visual Instruction Tuningcited by 7,869
- 2021Masked Autoencoders Are Scalable Vision Learnerscited by 7,403
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- 2023BLIP-2: Bootstrapping Language-Image Pre-training with Frozen Image Encoders and Large Language Modelscited by 6,137
- 2025Qwen2.5-VL Technical Reportcited by 5,587
- 2021RoFormer: Enhanced Transformer with Rotary Position Embeddingcited by 4,703
- 2023Improved Baselines with Visual Instruction Tuningcited by 4,418
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- 2022BLIP: Bootstrapping Language-Image Pre-training for Unified Vision-Language Understanding and Generationcited by 4,322
- 2024Qwen2-VL: Enhancing Vision-Language Model's Perception of the World at Any Resolutioncited by 4,234
- 2023Lost in the Middle: How Language Models Use Long Contextscited by 3,455
- 2023Sigmoid Loss for Language Image Pre-Trainingcited by 3,109
- 2025Qwen3-VL Technical Reportcited by 2,793
- 2024LLaVA-OneVision: Easy Visual Task Transfercited by 2,719
- 2023InternVL: Scaling up Vision Foundation Models and Aligning for Generic Visual-Linguistic Taskscited by 2,565
- 2023Qwen-VL: A Versatile Vision-Language Model for Understanding, Localization, Text Reading, and Beyondcited by 2,224
- 2023Efficient Streaming Language Models with Attention Sinkscited by 2,186
- 2023MMBench: Is Your Multi-modal Model an All-around Player?cited by 2,141
- 2025InternVL3.5: Advancing Open-Source Multimodal Models in Versatility, Reasoning, and Efficiencycited by 1,510
- 2024Video-MME: The First-Ever Comprehensive Evaluation Benchmark of Multi-modal LLMs in Video Analysiscited by 1,413
- 2023Video-LLaVA: Learning United Visual Representation by Alignment Before Projectioncited by 1,402
- 2023MM-Vet: Evaluating Large Multimodal Models for Integrated Capabilitiescited by 1,239
- 2023MVBench: A Comprehensive Multi-modal Video Understanding Benchmarkcited by 1,109
- 2023Video-ChatGPT: Towards Detailed Video Understanding via Large Vision and Language Modelscited by 1,062
- 2024How Far Are We to GPT-4V? Closing the Gap to Commercial Multimodal Models with Open-Source Suitescited by 1,050
- 2022Token Merging: Your ViT But Fastercited by 1,021
- 2023ShareGPT4V: Improving Large Multi-Modal Models with Better Captionscited by 1,005
- 2021DynamicViT: Efficient Vision Transformers with Dynamic Token Sparsificationcited by 864
- 2021NExT-QA:Next Phase of Question-Answering to Explaining Temporal Actionscited by 744
- 2024Eyes Wide Shut? Exploring the Visual Shortcomings of Multimodal LLMscited by 735
- 2023LLaMA-VID: An Image is Worth 2 Tokens in Large Language Modelscited by 546
- 2023TimeChat: A Time-sensitive Multimodal Large Language Model for Long Video Understandingcited by 406
- 2024SparseVLM: Visual Token Sparsification for Efficient Vision-Language Model Inferencecited by 391
- 2023Chat-UniVi: Unified Visual Representation Empowers Large Language Models with Image and Video Understandingcited by 371
- 2024Mini-Gemini: Mining the Potential of Multi-modality Vision Language Modelscited by 365
- 2022Not All Patches are What You Need: Expediting Vision Transformers via Token Reorganizationscited by 363
- 2024InternVideo2: Scaling Foundation Models for Multimodal Video Understandingcited by 317
- 2024VisionZip: Longer is Better but Not Necessary in Vision Language Modelscited by 313
- 2024PyramidDrop: Accelerating Your Large Vision-Language Models via Pyramid Visual Redundancy Reductioncited by 294
- 2024LLaVA-UHD: an LMM Perceiving Any Aspect Ratio and High-Resolution Imagescited by 195
- 2021Adaptive Token Sampling For Efficient Vision Transformerscited by 183
- 2023VALOR: Vision-Audio-Language Omni-Perception Pretraining Model and Datasetcited by 140
- 2024AuroraCap: Efficient, Performant Video Detailed Captioning and a New Benchmarkcited by 140
- 2024Towards Interpreting Visual Information Processing in Vision-Language Modelscited by 122
- 2021Token Pooling in Vision Transformerscited by 69
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