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Automatically extracting vectorized building contours from remote sensing imagery is crucial for urban planning, population estimation, and disaster assessment. Current state-of-the-art methods rely on complex multi-stage pipelines…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Tao Zhang , Shiqing Wei , Shihao Chen , Wenling Yu , Muying Luo , Shunping Ji

3D reconstruction from images is a core problem in computer vision. With recent advances in deep learning, it has become possible to recover plausible 3D shapes even from single RGB images for the first time. However, obtaining detailed…

计算机视觉与模式识别 · 计算机科学 2019-12-24 Tao Hu , Geng Lin , Zhizhong Han , Matthias Zwicker

We propose a level set method to reconstruct unknown surfaces from point clouds, without assuming that the connections between points are known. We consider a variational formulation with a curvature constraint that minimizes the surface…

数值分析 · 数学 2024-10-30 Silvia Preda , Matteo Semplice

Large vision-language models (VLMs) typically process hundreds or thousands of visual tokens per image or video frame, incurring quadratic attention cost and substantial redundancy. Existing token reduction methods often ignore the textual…

计算机视觉与模式识别 · 计算机科学 2025-12-24 Kaitong Cai , Jusheng Zhang , Jing Yang , Yijia Fan , Pengtao Xie , Jian Wang , Keze Wang

While Large Vision Language Models (LVLMs) demonstrate impressive capabilities, their substantial computational and memory requirements pose deployment challenges on resource-constrained edge devices. Current parameter reduction techniques…

计算与语言 · 计算机科学 2026-04-28 Yiran Huang , Lukas Thede , Massimiliano Mancini , Wenjia Xu , Zeynep Akata

Current training-free methods tackle MLLM hallucination with separate strategies: either enhancing visual signals or suppressing text inertia. However, these separate methods are insufficient due to critical trade-offs: simply enhancing…

计算机视觉与模式识别 · 计算机科学 2026-03-12 Zhan Fa , Yue Duan , Jian Zhang , Lei Qi , Yinghuan Shi

Vision-language models (VLMs) excel in semantic tasks but falter at a core human capability: detecting hidden content in optical illusions or AI-generated images through perceptual adjustments like zooming. We introduce HC-Bench, a…

计算与语言 · 计算机科学 2025-10-16 Sifan Li , Yujun Cai , Yiwei Wang

Remote sensing imagery suffers from clouds, haze, noise, resolution limits, and sensor heterogeneity. Existing restoration and fusion approaches train separate models per degradation type. In this work, we present Language-conditioned…

计算机视觉与模式识别 · 计算机科学 2026-04-08 Yongchuan Cui , Peng Liu

Large Vision-Language Models (LVLMs) suffer from prohibitive inference costs due to the massive number of visual tokens processed by the language decoder. Existing pruning methods often lead to significant performance degradation because…

计算机视觉与模式识别 · 计算机科学 2026-04-08 Jianwei Zhang , Chaoning Zhang , Sihan Cao , Wang Liu , Pengcheng Zheng , Jiaxin Huang , Caiyan Qin , Yalan Ye , Wei Dong , Yang Yang

All-in-one image restoration seeks to recover clean images from inputs affected by diverse and unknown degradations using a unified framework. Recent methods have shown strong performance by identifying degradation characteristics to guide…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Eunho Lee , Rei Kawakami , Youngbae Hwang

Understanding the environment and a robot's physical reachability is crucial for task execution. While state-of-the-art vision-language models (VLMs) excel in environmental perception, they often generate inaccurate or impractical responses…

机器人学 · 计算机科学 2025-03-14 Weijie Zhou , Manli Tao , Chaoyang Zhao , Haiyun Guo , Honghui Dong , Ming Tang , Jinqiao Wang

Atmospheric turbulence significantly affects imaging systems which use light that has propagated through long atmospheric paths. Images captured under such condition suffer from a combination of geometric deformation and space varying blur.…

计算机视觉与模式识别 · 计算机科学 2020-07-17 Rajeev Yasarla , Vishal M Patel

In this paper, we introduce LightVLM, a simple but effective method that can be seamlessly deployed upon existing Vision-Language Models (VLMs) to greatly accelerate the inference process in a training-free manner. We divide the inference…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Lianyu Hu , Fanhua Shang , Wei Feng , Liang Wan

Inference time scaling drives extended reasoning to enhance the performance of Vision-Language Models (VLMs), thus forming powerful Vision-Language Reasoning Models (VLRMs). However, long reasoning dilutes visual tokens, causing visual…

计算机视觉与模式识别 · 计算机科学 2025-06-02 Xu Chu , Xinrong Chen , Guanyu Wang , Zhijie Tan , Kui Huang , Wenyu Lv , Tong Mo , Weiping Li

Vision-Language Models (VLMs) often struggle with tasks that require fine-grained image understanding, such as scene-text recognition or document analysis, due to perception limitations and visual fragmentation. To address these challenges,…

计算机视觉与模式识别 · 计算机科学 2026-04-15 Miguel Carvalho , Helder Dias , Bruno Martins

Vision-Language Models (VLMs) are powerful tools for processing and understanding text and images. We study the processing of visual tokens in the language model component of LLaVA, a prominent VLM. Our approach focuses on analyzing the…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Clement Neo , Luke Ong , Philip Torr , Mor Geva , David Krueger , Fazl Barez

Diffusion models have achieved promising results in image restoration tasks, yet suffer from time-consuming, excessive computational resource consumption, and unstable restoration. To address these issues, we propose a robust and efficient…

计算机视觉与模式识别 · 计算机科学 2023-09-26 Hai Jiang , Ao Luo , Songchen Han , Haoqiang Fan , Shuaicheng Liu

Point cloud completion is the task of predicting complete geometry from partial observations using a point set representation for a 3D shape. Previous approaches propose neural networks to directly estimate the whole point cloud through…

计算机视觉与模式识别 · 计算机科学 2020-10-12 Alexis Mendoza , Alexander Apaza , Ivan Sipiran , Cristian Lopez

Point clouds are vital in computer vision tasks such as 3D reconstruction, autonomous driving, and robotics. However, TLS-acquired point clouds often contain virtual points from reflective surfaces, causing disruptions. This study presents…

计算机视觉与模式识别 · 计算机科学 2024-07-04 Li Fang , Tianyu Li , Yanghong Lin , Shudong Zhou , Wei Yao

Affordance understanding, the task of identifying actionable regions on 3D objects, plays a vital role in allowing robotic systems to engage with and operate within the physical world. Although Visual Language Models (VLMs) have excelled in…