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Open-Vocabulary Segmentation (OVS) has drawn increasing attention for its capacity to generalize segmentation beyond predefined categories. However, existing methods typically predict segmentation masks with simple forward inference,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Zongyan Han , Jiale Cao , Shuo Chen , Tong Wang , Jorma Laaksonen , Rao Muhammad Anwer

General-purpose large Vision-Language Models (VLMs) demonstrate strong capabilities in generating detailed descriptions for natural images. However, their performance in the medical domain remains suboptimal, even for relatively…

Computer Vision and Pattern Recognition · Computer Science 2025-10-23 Yifan Li , Fenghe Tang , Yingtai Li , Shaohua Kevin Zhou

In this study, we propose NOVO (NO text, Visual-Only prompts), a novel framework that bridges vision-language models (VLMs) and segmentation models through visual-only prompts. Unlike prior approaches that feed text-derived SEG token…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Kyung-Yoon Yoon , Yeong-Jun Cho

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…

Computer Vision and Pattern Recognition · Computer Science 2025-10-23 Kaituo Feng , Kaixiong Gong , Bohao Li , Zonghao Guo , Yibing Wang , Tianshuo Peng , Junfei Wu , Xiaoying Zhang , Benyou Wang , Xiangyu Yue

Video reasoning segmentation requires localizing objects across video frames from natural language expressions, often involving spatial reasoning and implicit references. Recent approaches leverage frozen large vision-language models…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Ali Cheraghian , Hamidreza Dastmalchi , Abdelwahed Khamis , Morteza Saberi , Aijun An , Lars Petersson

In semi-supervised semantic segmentation, a model is trained with a limited number of labeled images along with a large corpus of unlabeled images to reduce the high annotation effort. While previous methods are able to learn good…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Lukas Hoyer , David Joseph Tan , Muhammad Ferjad Naeem , Luc Van Gool , Federico Tombari

Large Vision-Language Models (LVLMs) have become powerful general-purpose assistants, yet their predictions often lack reliability and interpretability due to insufficient grounding in visual evidence. The emerging thinking-with-images…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Meng Cao , Haoze Zhao , Can Zhang , Xiaojun Chang , Ian Reid , Xiaodan Liang

Segmentation Vision-Language Models (VLMs) have significantly advanced grounded visual understanding, yet they remain prone to pixel-grounding hallucinations, producing masks for incorrect objects or for objects that are entirely absent.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Xinzhuo Li , Adheesh Juvekar , Jiaxun Zhang , Xingyou Liu , Muntasir Wahed , Kiet A. Nguyen , Yifan Shen , Tianjiao Yu , Ismini Lourentzou

Pretrained vision-language models (VLMs), \eg CLIP, are increasingly used to bridge the gap between open- and close-vocabulary recognition in open-vocabulary image segmentation. As VLMs are generally pretrained with low-resolution images…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Yuanbing Zhu , Bingke Zhu , Yingying Chen , Yunfang Niu , Ming Tang , Jinqiao Wang

Traditional visual grounding methods primarily focus on single-image scenarios with simple textual references. However, extending these methods to real-world scenarios that involve implicit and complex instructions, particularly in…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Sule Bai , Mingxing Li , Yong Liu , Jing Tang , Haoji Zhang , Lei Sun , Xiangxiang Chu , Yansong Tang

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

The deployment of Vision-Language Models (VLMs) in safety-critical domains like autonomous driving (AD) is critically hindered by reliability failures, most notably object hallucination. This failure stems from their reliance on ungrounded,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-01 Zhenguo Zhang , Haohan Zheng , Yishen Wang , Le Xu , Tianchen Deng , Xuefeng Chen , Qu Chen , Bo Zhang , Wuxiong Huang

Open-set image segmentation poses a significant challenge because existing methods often demand extensive training or fine-tuning and generally struggle to segment unified objects consistently across diverse text reference expressions.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Zhihua Liu , Amrutha Saseendran , Lei Tong , Xilin He , Fariba Yousefi , Nikolay Burlutskiy , Dino Oglic , Tom Diethe , Philip Teare , Huiyu Zhou , Chen Jin

Referring Expression Comprehension (REC) links language to region level visual perception. Standard benchmarks (RefCOCO, RefCOCO+, RefCOCOg) have progressed rapidly with multimodal LLMs but remain weak tests of visual reasoning and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Qihua Dong , Kuo Yang , Lin Ju , Handong Zhao , Yitian Zhang , Yizhou Wang , Huimin Zeng , Jianglin Lu , Yun Fu

The Segment Anything Model (SAM) has gained significant attention for its impressive performance in image segmentation. However, it lacks proficiency in referring video object segmentation (RVOS) due to the need for precise user-interactive…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Yonglin Li , Jing Zhang , Xiao Teng , Long Lan , Xinwang Liu

Referring Expression Comprehension (REC) is a vision-language task that localizes a specific image region based on a textual description. Existing REC benchmarks primarily evaluate perceptual capabilities and lack interpretable scoring…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Tianyi Gao , Hao Li , Han Fang , Xin Wei , Xiaodong Dong , Hongbo Sun , Ye Yuan , Zhongjiang He , Jinglin Xu , Jingmin Xin , Hao Sun

Vision-language models (VLMs) have achieved remarkable success across diverse tasks. However, concerns about their trustworthiness persist, particularly regarding tendencies to lean more on textual cues than visual evidence and the risk of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Shizhan Gong , Minda Hu , Qiyuan Zhang , Chen Ma , Qi Dou

In the field of multimodal chain-of-thought (CoT) reasoning, existing approaches predominantly rely on reasoning on pure language space, which inherently suffers from language bias and is largely confined to math or science domains. This…

Computer Vision and Pattern Recognition · Computer Science 2026-05-04 Jiacong Wang , Zijian Kang , Haochen Wang , Haiyong Jiang , Jiawen Li , Bohong Wu , Ya Wang , Jiao Ran , Xiao Liang , Chao Feng , Jun Xiao

Reasoning is a critical frontier for advancing medical image analysis, where transparency and trustworthiness play a central role in both clinician trust and regulatory approval. Although Medical Visual Language Models (VLMs) show promise…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Jiazhen Pan , Che Liu , Junde Wu , Fenglin Liu , Jiayuan Zhu , Hongwei Bran Li , Chen Chen , Cheng Ouyang , Daniel Rueckert

Modern referring image segmentation pipelines couple a vision-language model (VLM) for grounding with a promptable segmenter such as the Segment Anything Model (SAM) for mask generation. Prior training-free instances of this recipe…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Pouya Sadeghi , Shawn He , Pedro Pablo Guerrero Vela , C. Thomas , Alex Wong , Sirisha Rambhatla