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Zero-shot anomaly detection (ZSAD) enables anomaly detection without normal samples from target categories, addressing scenarios where task-specific training data is unavailable. However, existing ZSAD methods either neglect adaptation of…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Kiyoon Jeong , Jaehyuk Heo , Junyeong Son , Pilsung Kang

Existing open-vocabulary object detectors typically enlarge their vocabulary sizes by leveraging different forms of weak supervision. This helps generalize to novel objects at inference. Two popular forms of weak-supervision used in…

计算机视觉与模式识别 · 计算机科学 2022-11-30 Hanoona Rasheed , Muhammad Maaz , Muhammad Uzair Khattak , Salman Khan , Fahad Shahbaz Khan

Recent progress has shown that large-scale pre-training using contrastive image-text pairs can be a promising alternative for high-quality visual representation learning from natural language supervision. Benefiting from a broader source of…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Yongming Rao , Wenliang Zhao , Guangyi Chen , Yansong Tang , Zheng Zhu , Guan Huang , Jie Zhou , Jiwen Lu

Contrastive language-image pre-training (CLIP) models have demonstrated considerable success across various vision-language tasks, such as text-to-image retrieval, where the model is required to effectively process natural language input to…

计算机视觉与模式识别 · 计算机科学 2024-02-26 Hyunjae Kim , Seunghyun Yoon , Trung Bui , Handong Zhao , Quan Tran , Franck Dernoncourt , Jaewoo Kang

Contrastive Vision-Language Pre-training, known as CLIP, has shown promising effectiveness in addressing downstream image recognition tasks. However, recent works revealed that the CLIP model can be implanted with a downstream-oriented…

计算机视觉与模式识别 · 计算机科学 2024-03-25 Jiawang Bai , Kuofeng Gao , Shaobo Min , Shu-Tao Xia , Zhifeng Li , Wei Liu

Contrastive Language-Image Pre-training (CLIP) has demonstrated strong generalization across a wide range of visual tasks by leveraging large-scale English-image pairs. However, its extension to low-resource languages remains limited due to…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Dahyun Chung , Donghyun Shin , Yujin Sung , Seunggi Moon , Jinwoo Jeon , Byung-Jun Lee

Contrastive Language-Image Pretraining (CLIP) has emerged as a novel paradigm to learn visual models from language supervision. While researchers continue to push the frontier of CLIP, reproducing these works remains challenging. This is…

计算机视觉与模式识别 · 计算机科学 2022-03-14 Yufeng Cui , Lichen Zhao , Feng Liang , Yangguang Li , Jing Shao

Zero-shot anomaly detection (ZSAD) aims to detect anomalies without any target domain training samples, relying solely on external auxiliary data. Existing CLIP-based methods attempt to activate the model's ZSAD potential via handcrafted or…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Ziteng Yang , Jingzehua Xu , Yanshu Li , Zepeng Li , Yeqiang Wang , Xinghui Li

Significant progress has been achieved on the improvement and downstream usages of the Contrastive Language-Image Pre-training (CLIP) vision-language model, while less attention is paid to the interpretation of CLIP. We propose a…

计算机视觉与模式识别 · 计算机科学 2026-05-08 Chenyang Zhao , Kun Wang , Janet H. Hsiao , Antoni B. Chan

While Vision-Language Models (VLMs) have achieved notable progress in computational pathology (CPath), the gigapixel scale and spatial heterogeneity of Whole Slide Images (WSIs) continue to pose challenges for multimodal understanding.…

计算机视觉与模式识别 · 计算机科学 2025-12-22 Fengchun Liu , Songhan Jiang , Linghan Cai , Ziyue Wang , Yongbing Zhang

Large-scale vision-language pre-training has achieved promising results on downstream tasks. Existing methods highly rely on the assumption that the image-text pairs crawled from the Internet are in perfect one-to-one correspondence.…

计算机视觉与模式识别 · 计算机科学 2022-05-31 Yuting Gao , Jinfeng Liu , Zihan Xu , Jun Zhang , Ke Li , Rongrong Ji , Chunhua Shen

A pre-trained visual-language model, contrastive language-image pre-training (CLIP), successfully accomplishes various downstream tasks with text prompts, such as finding images or localizing regions within the image. Despite CLIP's strong…

计算机视觉与模式识别 · 计算机科学 2025-02-18 YeongHyeon Park , Myung Jin Kim , Hyeong Seok Kim

CCTV safety monitoring demands anomaly detectors combine reliable clip-level accuracy with predictable per-clip latency despite weak supervision. This work investigates compact vision-language models (VLMs) as practical detectors for this…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Kirill Borodin , Kirill Kondrashov , Nikita Vasiliev , Ksenia Gladkova , Inna Larina , Mikhail Gorodnichev , Grach Mkrtchian

Contrastive language-image pretraining (CLIP) links vision and language modalities into a unified embedding space, yielding the tremendous potential for vision-language (VL) tasks. While early concurrent works have begun to study this…

计算机视觉与模式识别 · 计算机科学 2023-01-02 Zhecan Wang , Noel Codella , Yen-Chun Chen , Luowei Zhou , Jianwei Yang , Xiyang Dai , Bin Xiao , Haoxuan You , Shih-Fu Chang , Lu Yuan

Weakly supervised video anomaly detection (WSVAD) is a challenging task since only video-level labels are available for training. In previous studies, the discriminative power of the learned features is not strong enough, and the data…

计算机视觉与模式识别 · 计算机科学 2022-12-19 Congqi Cao , Xin Zhang , Shizhou Zhang , Peng Wang , Yanning Zhang

Contrastive learning has emerged as an efficient framework to learn multimodal representations. CLIP, a seminal work in this area, achieved impressive results by training on paired image-text data using the contrastive loss. Recent work…

计算机视觉与模式识别 · 计算机科学 2023-11-07 Enrico Fini , Pietro Astolfi , Adriana Romero-Soriano , Jakob Verbeek , Michal Drozdzal

Vision-language models such as CLIP are pretrained on large volumes of internet sourced image and text pairs, and have been shown to sometimes exhibit impressive zero- and low-shot image classification performance. However, due to their…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Omiros Pantazis , Gabriel Brostow , Kate Jones , Oisin Mac Aodha

Weakly Supervised Semantic Segmentation (WSSS) with image-level labels typically leverages Class Activation Maps (CAMs) to achieve pixel-level predictions. Recently, Contrastive Language-Image Pre-training (CLIP) has been introduced to…

计算机视觉与模式识别 · 计算机科学 2026-05-07 Zhiwei Yang , Pengfei Song , Yucong Meng , Kexue Fu , Shuo Wang , Zhijian Song

Recent advancements in large-scale visual-language pre-trained models have led to significant progress in zero-/few-shot anomaly detection within natural image domains. However, the substantial domain divergence between natural and medical…

计算机视觉与模式识别 · 计算机科学 2024-03-20 Chaoqin Huang , Aofan Jiang , Jinghao Feng , Ya Zhang , Xinchao Wang , Yanfeng Wang

Weakly supervised video anomaly detection aims to detect anomalies and identify abnormal categories with only video-level labels. We propose CPL-VAD, a dual-branch framework with cross pseudo labeling. The binary anomaly detection branch…

计算机视觉与模式识别 · 计算机科学 2026-03-16 Dayeon Lee , Donghyeong Kim , Chaewon Park , Sungmin Woo , Sangyoun Lee