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In real-world applications, the sample distribution at the inference stage often differs from the one at the training stage, causing performance degradation of trained deep models. The research on domain generalization (DG) aims to develop…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Jiao Zhang , Jian Xu , Xu-Yao Zhang , Cheng-Lin Liu

Current weakly supervised video anomaly detection (WSVAD) task aims to achieve frame-level anomalous event detection with only coarse video-level annotations available. Existing works typically involve extracting global features from…

Computer Vision and Pattern Recognition · Computer Science 2024-08-14 Peng Wu , Xuerong Zhou , Guansong Pang , Zhiwei Yang , Qingsen Yan , Peng Wang , Yanning Zhang

Vision-language models (VLMs), such as CLIP, have gained popularity for their strong open vocabulary classification performance, but they are prone to assigning high confidence scores to misclassifications, limiting their reliability in…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Zhenxiang Lin , Maryam Haghighat , Will Browne , Dimity Miller

Thanks to the large pre-trained vision-language models (VLMs) like CLIP, we can craft a zero-shot classifier by "prompt", e.g., the confidence score of an image being "[CLASS]" can be obtained by using the VLM provided similarity measure…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Beier Zhu , Yulei Niu , Yucheng Han , Yue Wu , Hanwang Zhang

Multimodal contrastive learning models (e.g., CLIP) can learn high-quality representations from large-scale image-text datasets, while they exhibit significant vulnerabilities to backdoor attacks, raising serious safety concerns. In this…

Computer Vision and Pattern Recognition · Computer Science 2025-10-31 Zhifang Zhang , Shuo He , Haobo Wang , Bingquan Shen , Lei Feng

With the advent of state-of-the-art machine learning and deep learning technologies, several industries are moving towards the field. Applications of such technologies are highly diverse ranging from natural language processing to computer…

Computer Vision and Pattern Recognition · Computer Science 2021-01-01 Viny Saajan Victor , Pramod Vadiraja , Jan-Tobias Sohns , Heike Leitte

Although industrial inspection systems should be capable of recognizing unprecedented defects, most existing approaches operate under a closed-set assumption, which prevents them from detecting novel anomalies. While visual prompting offers…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Geonuk Kim , Minhoi Kim , Kangil Lee , Minsu Kim , Hyeonseong Jeon , Jeonghoon Han , Hyoungjoon Lim , Junho Yim

How to effectively exploit spatio-temporal information is crucial to capture target appearance changes in visual tracking. However, most deep learning-based trackers mainly focus on designing a complicated appearance model or template…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Liangtao Shi , Bineng Zhong , Qihua Liang , Ning Li , Shengping Zhang , Xianxian Li

Vision-Language-Action (VLA) models have advanced robotic control by enabling end-to-end decision-making directly from multimodal inputs. However, their tightly coupled architectures expose novel security vulnerabilities. Unlike traditional…

Cryptography and Security · Computer Science 2025-05-23 Xueyang Zhou , Guiyao Tie , Guowen Zhang , Hechang Wang , Pan Zhou , Lichao Sun

Visual language models (VLMs) have made significant progress in image captioning tasks, yet recent studies have found they are vulnerable to backdoor attacks. Attackers can inject undetectable perturbations into the data during inference,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Shuhan Xu , Siyuan Liang , Hongling Zheng , Aishan Liu , Xinbiao Wang , Yong Luo , Fu Lin , Leszek Rutkowski , Dacheng Tao

Zero-Shot Anomaly Detection (ZSAD) leverages Vision-Language Models (VLMs) to enable supervision-free industrial inspection. However, existing ZSAD paradigms are constrained by single visual backbones, which struggle to balance global…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Chenhao Fu , Han Fang , Xiuzheng Zheng , Wenbo Wei , Yonghua Li , Hao Sun , Xuelong Li

Prompting interfaces allow users to quickly adjust the output of generative models in both vision and language. However, small changes and design choices in the prompt can lead to significant differences in the output. In this work, we…

Machine Learning · Computer Science 2023-05-30 Natalie Maus , Patrick Chao , Eric Wong , Jacob Gardner

The input domain of software systems can typically be divided into sub-domains for which the outputs are similar. To ensure high quality it is critical to test the software on the boundaries between these sub-domains. Consequently, boundary…

Software Engineering · Computer Science 2022-07-20 Felix Dobslaw , Robert Feldt , Francisco de Oliveira Neto

Visual Prompting is a technique for teaching models to perform a visual task via in-context examples, without any additional training. In this work, we analyze the activations of MAE-VQGAN, a recent Visual Prompting model, and find task…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Alberto Hojel , Yutong Bai , Trevor Darrell , Amir Globerson , Amir Bar

Deep learning models have consistently outperformed traditional machine learning models in various classification tasks, including image classification. As such, they have become increasingly prevalent in many real world applications…

Cryptography and Security · Computer Science 2018-08-31 Cong Liao , Haoti Zhong , Anna Squicciarini , Sencun Zhu , David Miller

Efficient transfer learning of vision-language models (VLMs) commonly suffers from a Base-New Trade-off (BNT): improving performance on unseen (new) classes often degrades accuracy on known (base) classes. Addressing how to boost…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Senmao Tian , Xiang Wei , Shunli Zhang

Current solutions for efficiently constructing large vision-language (VL) models follow a two-step paradigm: projecting the output of pre-trained vision encoders to the input space of pre-trained language models as visual prompts; and then…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Shibo Jie , Yehui Tang , Ning Ding , Zhi-Hong Deng , Kai Han , Yunhe Wang

This work proposes POMP, a prompt pre-training method for vision-language models. Being memory and computation efficient, POMP enables the learned prompt to condense semantic information for a rich set of visual concepts with over…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Shuhuai Ren , Aston Zhang , Yi Zhu , Shuai Zhang , Shuai Zheng , Mu Li , Alex Smola , Xu Sun

We propose a stealthy clean-label video backdoor attack against Deep Learning (DL)-based models aiming at detecting a particular class of spoofing attacks, namely video rebroadcast attacks. The injected backdoor does not affect spoofing…

Computer Vision and Pattern Recognition · Computer Science 2022-06-03 Wei Guo , Benedetta Tondi , Mauro Barni

Based on the concept that ventral visual stream (VVS) mainly functions for object recognition, current unsupervised task-driven methods model VVS by contrastive learning, and have achieved good brain similarity. However, we believe…

Computational Engineering, Finance, and Science · Computer Science 2025-11-11 Dazhong Rong , Hao Dong , Xing Gao , Jiyu Wei , Di Hong , Yaoyao Hao , Qinming He , Yueming Wang