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Understanding visual degradations is a critical yet challenging problem in computer vision. While recent Vision-Language Models (VLMs) excel at qualitative description, they often fall short in understanding the parametric physics…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Guanzhou Lan , Chenyi Liao , Yuqi Yang , Qianli Ma , Zhigang Wang , Dong Wang , Bin Zhao , Xuelong Li

There is a rapid increase in the use of multimedia content in current social media platforms. One of the highly popular forms of such multimedia content are memes. While memes have been primarily invented to promote funny and buoyant…

Computation and Language · Computer Science 2025-03-25 Naquee Rizwan , Paramananda Bhaskar , Mithun Das , Swadhin Satyaprakash Majhi , Punyajoy Saha , Animesh Mukherjee

Handwriting Verification is a critical in document forensics. Deep learning based approaches often face skepticism from forensic document examiners due to their lack of explainability and reliance on extensive training data and handcrafted…

Computer Vision and Pattern Recognition · Computer Science 2024-08-01 Mihir Chauhan , Abhishek Satbhai , Mohammad Abuzar Hashemi , Mir Basheer Ali , Bina Ramamurthy , Mingchen Gao , Siwei Lyu , Sargur Srihari

Out-of-distribution (OOD) detection has seen significant advancements with zero-shot approaches by leveraging the powerful Vision-Language Models (VLMs) such as CLIP. However, prior research works have predominantly focused on enhancing…

Computer Vision and Pattern Recognition · Computer Science 2025-01-10 Pei-Kang Lee , Jun-Cheng Chen , Ja-Ling Wu

The rapid rise of deepfake technology, which produces realistic but fraudulent digital content, threatens the authenticity of media. Traditional deepfake detection approaches often struggle with sophisticated, customized deepfakes,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-23 Ahmad ALBarqawi , Mahmoud Nazzal , Issa Khalil , Abdallah Khreishah , NhatHai Phan

Vision-Language Models (VLMs) have demonstrated impressive performance on zero-shot classification, i.e. classification when provided merely with a list of class names. In this paper, we tackle the case of zero-shot classification in the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-08 Vladan Stojnić , Yannis Kalantidis , Giorgos Tolias

In recent years, we have witnessed significant progress in emerging deep learning models, particularly Large Language Models (LLMs) and Vision-Language Models (VLMs). These models have demonstrated promising results, indicating a new era of…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Paola Natalia Cañas , Marcos Nieto , Oihana Otaegui , Igor Rodríguez

The emergence of text-to-image generative models has revolutionized the field of deepfakes, enabling the creation of realistic and convincing visual content directly from textual descriptions. However, this advancement presents considerably…

Computer Vision and Pattern Recognition · Computer Science 2024-01-05 Yabin Wang , Zhiwu Huang , Zhiheng Ma , Xiaopeng Hong

In real-world vision-language applications, practitioners increasingly rely on large, pretrained foundation models rather than custom-built solutions, despite limited transparency regarding their training data and processes. While these…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Mario Koddenbrock , Rudolf Hoffmann , David Brodmann , Erik Rodner

Generative adversarial networks (GANs) and diffusion models have dramatically advanced deepfake technology, and its threats to digital security, media integrity, and public trust have increased rapidly. This research explored zero-shot…

Graphics · Computer Science 2025-09-24 Ayan Sar , Sampurna Roy , Tanupriya Choudhury , Ajith Abraham

Multimodal pre-trained models, such as CLIP, are popular for zero-shot classification due to their open-vocabulary flexibility and high performance. However, vision-language models, which compute similarity scores between images and class…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Mia Chiquier , Utkarsh Mall , Carl Vondrick

Vision-Language Models (VLMs) leverage aligned visual encoders to transform images into visual tokens, allowing them to be processed similarly to text by the backbone large language model (LLM). This unified input paradigm enables VLMs to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Bangzheng Li , Fei Wang , Wenxuan Zhou , Nan Xu , Ben Zhou , Sheng Zhang , Hoifung Poon , Muhao Chen

Image geolocalization has traditionally been addressed through retrieval-based place recognition or geometry-based visual localization pipelines. Recent advances in Vision-Language Models (VLMs) have demonstrated strong zero-shot reasoning…

Computer Vision and Pattern Recognition · Computer Science 2026-04-20 Siddhant Bharadwaj , Ashish Vashist , Fahimul Aleem , Shruti Vyas

Image classification is one of the most fundamental capabilities of machine vision intelligence. In this work, we revisit the image classification task using visually-grounded language models (VLMs) such as GPT-4V and LLaVA. We find that…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Yuhui Zhang , Alyssa Unell , Xiaohan Wang , Dhruba Ghosh , Yuchang Su , Ludwig Schmidt , Serena Yeung-Levy

The growing threat posed by deepfake videos, capable of manipulating realities and disseminating misinformation, drives the urgent need for effective detection methods. This work investigates and compares different approaches for…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Matheus Martins Batista

Faces synthesized by diffusion models (DMs) with high-quality and controllable attributes pose a significant challenge for Deepfake detection. Most state-of-the-art detectors only yield a binary decision, incapable of forgery localization,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Xinan He , Yue Zhou , Bing Fan , Bin Li , Guopu Zhu , Feng Ding

Zero-shot anomaly detection aims to detect and localise abnormal regions in the image without access to any in-domain training images. While recent approaches leverage vision-language models (VLMs), such as CLIP, to transfer high-level…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Matic Fučka , Vitjan Zavrtanik , Danijel Skočaj

Vision-Language Models (VLMs) have achieved remarkable success in tasks such as image captioning and visual question answering (VQA). However, as their applications become increasingly widespread, recent studies have revealed that VLMs are…

Artificial Intelligence · Computer Science 2026-05-05 Ji Guo , Xiaolong Qin , Cencen Liu , Jielei Wang , Jierun Chen , Wenbo Jiang

Multimodal Vision Language Models (VLMs) have emerged as a transformative topic at the intersection of computer vision and natural language processing, enabling machines to perceive and reason about the world through both visual and textual…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Zongxia Li , Xiyang Wu , Hongyang Du , Fuxiao Liu , Huy Nghiem , Guangyao Shi

Vision-Language Models (VLMs), such as CLIP, have demonstrated remarkable zero-shot out-of-distribution (OOD) detection capabilities, vital for reliable AI systems. Despite this promising capability, a comprehensive understanding of (1) why…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Yuxiao Lee , Xiaofeng Cao , Wei Ye , Jiangchao Yao , Jingkuan Song , Heng Tao Shen