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Vision language models (VLM) have demonstrated remarkable performance across various downstream tasks. However, understanding fine-grained visual-linguistic concepts, such as attributes and inter-object relationships, remains a significant…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Wujian Peng , Sicheng Xie , Zuyao You , Shiyi Lan , Zuxuan Wu

Large Language Models (LLMs) struggle with long-context code due to window limitations. Existing textual code compression methods mitigate this via selective filtering but often disrupt dependency closure, causing semantic fragmentation. To…

Software Engineering · Computer Science 2026-02-03 Jianping Zhong , Guochang Li , Chen Zhi , Junxiao Han , Zhen Qin , Xinkui Zhao , Nan Wang , Shuiguang Deng , Jianwei Yin

The visual commonsense reasoning (VCR) task is to choose an answer and provide a justifying rationale based on the given image and textural question. Representative works first recognize objects in images and then associate them with key…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Jian Zhu , Hanli Wang , Miaojing Shi

Recent work has shown that Vision-Language Models (VLMs) used for optical character recognition (OCR) can generate plausible but visually unsupported text, suggesting reliance on language priors. Comparing open-weight VLMs with traditional…

Computation and Language · Computer Science 2026-05-28 Antonia Karamolegkou , Nicolas Angleraud , Benoît Sagot , Thibault Clérice

We present olmOCR 2, the latest in our family of powerful OCR systems for converting digitized print documents, like PDFs, into clean, naturally ordered plain text. olmOCR 2 is powered by olmOCR-2-7B-1025, a specialized, 7B vision language…

Computer Vision and Pattern Recognition · Computer Science 2025-10-23 Jake Poznanski , Luca Soldaini , Kyle Lo

Multimodal Large Language Models (MLLMs) have advanced VQA and now support Vision-DeepResearch systems that use search engines for complex visual-textual fact-finding. However, evaluating these visual and textual search abilities is still…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Yu Zeng , Wenxuan Huang , Zhen Fang , Shuang Chen , Yufan Shen , Yishuo Cai , Xiaoman Wang , Zhenfei Yin , Lin Chen , Zehui Chen , Shiting Huang , Yiming Zhao , Xu Tang , Yao Hu , Philip Torr , Wanli Ouyang , Shaosheng Cao

Mainstream vision-language models (VLMs) fundamentally struggle with severe optical ambiguities, such as reflections and transparent objects, due to the inherent limitations of standard RGB inputs. While polarization imaging captures…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Yuliang Li , Chu Zhou , Heng Guo , Boxin Shi , Imari Sato , Zhanyu Ma

A crucial component for the scene text based reasoning required for TextVQA and TextCaps datasets involve detecting and recognizing text present in the images using an optical character recognition (OCR) system. The current systems are…

Computer Vision and Pattern Recognition · Computer Science 2021-05-13 Amanpreet Singh , Guan Pang , Mandy Toh , Jing Huang , Wojciech Galuba , Tal Hassner

Recent studies have shown that Large Vision-Language Models (VLMs) tend to neglect image content and over-rely on language-model priors, resulting in errors in visually grounded tasks and hallucinations. We hypothesize that this issue…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Shengguang Wu , Fan-Yun Sun , Kaiyue Wen , Nick Haber

Large Vision-Language Models (LVLMs) often suffer from hallucinations, generating descriptions that include visual details absent from the input image. Recent preference alignment methods typically rely on supervision distilled from…

Computer Vision and Pattern Recognition · Computer Science 2026-05-04 Minghui Chen , Chenxu Yang , Hengjie Zhu , Dayan Wu , Zheng Lin , Qingyi Si

Vision-and-language models (VLMs) have been increasingly explored in the medical domain, particularly following the success of CLIP in general domain. However, unlike the relatively straightforward pairing of 2D images and text, curating…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Ziyang Zhang , Yang Yu , Xulei Yang , Si Yong Yeo

Vision-Language Model (VLM) have gained widespread adoption in Open-Vocabulary (OV) object detection and segmentation tasks. Despite they have shown promise on OV-related tasks, their effectiveness in conventional vision tasks has thus far…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Yongchao Feng , Yajie Liu , Shuai Yang , Wenrui Cai , Jinqing Zhang , Qiqi Zhan , Ziyue Huang , Hongxi Yan , Qiao Wan , Chenguang Liu , Junzhe Wang , Jiahui Lv , Ziqi Liu , Tengyuan Shi , Qingjie Liu , Yunhong Wang

While Large Language Models (LLMs) demonstrate remarkable reasoning, complex optimization tasks remain challenging, requiring domain knowledge and robust implementation. However, existing benchmarks focus narrowly on Mathematical…

Computation and Language · Computer Science 2026-04-24 Xinyu Zhang , Boxuan Zhang , Yuchen Wan , Lingling Zhang , YiXing Yao , Bifan Wei , Yaqiang Wu , Jun Liu

Large pre-trained vision-language models (VLMs) offer a promising approach to leveraging human language for enhancing downstream tasks. However, VLMs such as CLIP face significant limitation: its performance is highly sensitive to prompt…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Ao Li , Zongfang Liu , Xinhua Li , Jinghui Zhang , Pengwei Wang , Hu Wang

Modern Large Vision-Language Models (LVLMs) enjoy the same vision vocabulary -- CLIP, which can cover most common vision tasks. However, for some special vision task that needs dense and fine-grained vision perception, e.g., document-level…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Haoran Wei , Lingyu Kong , Jinyue Chen , Liang Zhao , Zheng Ge , Jinrong Yang , Jianjian Sun , Chunrui Han , Xiangyu Zhang

Vision language models (VLMs) can flexibly address various vision tasks through text interactions. Although successful in semantic understanding, state-of-the-art VLMs including GPT-5 still struggle in understanding 3D from 2D inputs. On…

Computer Vision and Pattern Recognition · Computer Science 2025-10-02 Zhipeng Cai , Ching-Feng Yeh , Hu Xu , Zhuang Liu , Gregory Meyer , Xinjie Lei , Changsheng Zhao , Shang-Wen Li , Vikas Chandra , Yangyang Shi

Vision-language models (VLMs) have demonstrated remarkable potential in integrating visual and linguistic information, but their performance is often constrained by the need for extensive, high-quality image-text training data. Curation of…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Giorgio Giannone , Ruoteng Li , Qianli Feng , Evgeny Perevodchikov , Rui Chen , Aleix Martinez

Since the release of ChatGPT, the field of Natural Language Processing has experienced rapid advancements, particularly in Large Language Models (LLMs) and their multimodal counterparts, Large Multimodal Models (LMMs). Despite their…

Computation and Language · Computer Science 2024-08-27 Florian Schneider , Sunayana Sitaram

Pre-trained Vision-Language Models (VLMs) utilizing extensive image-text paired data have demonstrated unprecedented image-text association capabilities, achieving remarkable results across various downstream tasks. A critical challenge is…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Zilun Zhang , Tiancheng Zhao , Yulong Guo , Jianwei Yin

Video Large Language Models (Video LLMs) have shown remarkable progress in understanding and reasoning about visual content, particularly in tasks involving text recognition and text-based visual question answering (Text VQA). However,…