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Large Vision-Language Models (LVLMs) have demonstrated impressive performance on vision-language reasoning tasks. However, their potential for zero-shot fine-grained image classification, a challenging task requiring precise differentiation…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Md. Atabuzzaman , Andrew Zhang , Chris Thomas

Vocabulary-free fine-grained image recognition aims to distinguish visually similar categories within a meta-class without a fixed, human-defined label set. Existing solutions for this problem are limited by either the usage of a large and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Dmitry Demidov , Zaigham Zaheer , Zongyan Han , Omkar Thawakar , Rao Anwer

Pre-trained Vision-Language Models (VLMs), like CLIP, exhibit strong generalization ability to downstream tasks but struggle in few-shot scenarios. Existing prompting techniques primarily focus on global text and image representations, yet…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Xin Liu , Jiamin Wu , and Wenfei Yang , Xu Zhou , Tianzhu Zhang

This paper presents a new method for the zero-shot open-vocabulary semantic segmentation (OVSS) of 3D automotive lidar data. To circumvent the recognized image-text modality gap that is intrinsic to approaches based on Vision Language…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Nermin Samet , Gilles Puy , Renaud Marlet

Vision-language models (VLMs) have demonstrated exceptional generalization capabilities for downstream tasks. Due to its efficiency, prompt learning has gradually become a more effective and efficient method for transferring VLMs to…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Chenhao Ding , Xinyuan Gao , Songlin Dong , Jizhou Han , Qiang Wang , Zhengdong Zhou , Yuhang He , Yihong Gong

In autonomous driving, 3D LiDAR plays a crucial role in understanding the vehicle's surroundings. However, the newly emerged, unannotated objects presents few-shot learning problem for semantic segmentation. This paper addresses the…

Computer Vision and Pattern Recognition · Computer Science 2024-08-29 Junbao Zhou , Jilin Mei , Pengze Wu , Liang Chen , Fangzhou Zhao , Xijun Zhao , Yu Hu

Detecting small obstacles on the road is critical for autonomous driving. In this paper, we present a method to reliably detect such obstacles through a multi-modal framework of sparse LiDAR(VLP-16) and Monocular vision. LiDAR is employed…

Robotics · Computer Science 2020-03-16 Aasheesh Singh , Aditya Kamireddypalli , Vineet Gandhi , K Madhava Krishna

LiDAR is used in autonomous driving to provide 3D spatial information and enable accurate perception in off-road environments, aiding in obstacle detection, mapping, and path planning. Learning-based LiDAR semantic segmentation utilizes…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Kasi Viswanath , Peng Jiang , Sujit PB , Srikanth Saripalli

Feature matching is a cornerstone task in computer vision, essential for applications such as image retrieval, stereo matching, 3D reconstruction, and SLAM. This survey comprehensively reviews modality-based feature matching, exploring…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Weide Liu , Wei Zhou , Jun Liu , Ping Hu , Jun Cheng , Jungong Han , Weisi Lin

Vision-language models (VLMs) extend the conventional large language models by integrating visual data, enabling richer multimodal reasoning and significantly broadens the practical applications of AI. However, including visual inputs also…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Daulet Toibazar , Kesen Wang , Sherif Mohamed , Abdulaziz Al-Badawi , Abdulrahman Alfulayt , Pedro J. Moreno

The zero-shot performance of existing vision-language models (VLMs) such as CLIP is limited by the availability of large-scale, aligned image and text datasets in specific domains. In this work, we leverage two complementary sources of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Oindrila Saha , Grant Van Horn , Subhransu Maji

Frame-wise semantic segmentation of indoor lidar scans is a fundamental step toward higher-level 3D scene understanding and mapping applications. However, acquiring frame-wise ground truth for training deep learning models is costly and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Haiyang Wu , Juan J. Gonzales Torres , George Vosselman , Ville Lehtola

Classifying scanned documents is a challenging problem that involves image, layout, and text analysis for document understanding. Nevertheless, for certain benchmark datasets, notably RVL-CDIP, the state of the art is closing in to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Anna Scius-Bertrand , Michael Jungo , Lars Vögtlin , Jean-Marc Spat , Andreas Fischer

Any entity in the visual world can be hierarchically grouped based on shared characteristics and mapped to fine-grained sub-categories. While Multi-modal Large Language Models (MLLMs) achieve strong performance on coarse-grained visual…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Hulingxiao He , Zijun Geng , Yuxin Peng

Few-shot anomaly detection (FSAD) methods identify anomalous regions with few known normal samples. Most existing methods rely on the generalization ability of pre-trained vision-language models (VLMs) to recognize potentially anomalous…

Computer Vision and Pattern Recognition · Computer Science 2025-10-31 Yuanting Fan , Jun Liu , Xiaochen Chen , Bin-Bin Gao , Jian Li , Yong Liu , Jinlong Peng , Chengjie Wang

Open-set perception in complex traffic environments poses a critical challenge for autonomous driving systems, particularly in identifying previously unseen object categories, which is vital for ensuring safety. Visual Language Models…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Fuhao Chang , Shuxin Li , Yabei Li , Lei He

Vision-language models (VLMs) like CLIP have been cherished for their ability to perform zero-shot visual recognition on open-vocabulary concepts. This is achieved by selecting the object category whose textual representation bears the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Shaunak Halbe , Junjiao Tian , K J Joseph , James Seale Smith , Katherine Stevo , Vineeth N Balasubramanian , Zsolt Kira

Few-shot image classification remains a critical challenge in the field of computer vision, particularly in data-scarce environments. Existing methods typically rely on pre-trained visual-language models, such as CLIP. However, due to the…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Xi Yang , Pai Peng , Wulin Xie , Xiaohuan Lu , Jie Wen

Recently, Large Language Models (LLMs) and Multimodal Large Language Models (MLLMs) have shown promise in instruction following and 2D image understanding. While these models are powerful, they have not yet been developed to comprehend the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Senqiao Yang , Jiaming Liu , Ray Zhang , Mingjie Pan , Zoey Guo , Xiaoqi Li , Zehui Chen , Peng Gao , Yandong Guo , Shanghang Zhang

Vision-language models (VLMs) are often deployed on text-only inputs, although they are trained with images. We find that removing the vision modality causes large drops in accuracy and severe miscalibration, and the model does not behave…

Computation and Language · Computer Science 2026-05-14 Mingyeong Kim , Jungwon Choi , Chaeyun Jang , Juho Lee