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Recently, zero-shot and few-shot learning via Contrastive Vision-Language Pre-training (CLIP) have shown inspirational performance on 2D visual recognition, which learns to match images with their corresponding texts in open-vocabulary…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Renrui Zhang , Ziyu Guo , Wei Zhang , Kunchang Li , Xupeng Miao , Bin Cui , Yu Qiao , Peng Gao , Hongsheng Li

Large-scale vision-language models (VLMs) such as CLIP exhibit strong zero-shot generalization, but adapting them to downstream tasks typically requires costly labeled data. Existing unsupervised self-training methods rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Qian-Wei Wang , Guanghao Meng , Ren Cai , Yaguang Song , Shu-Tao Xia

Visual language models like Contrastive Language-Image Pretraining (CLIP) have shown impressive performance in analyzing natural images with language information. However, these models often encounter challenges when applied to specialized…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Jiaqing Zhang , Mingxiang Cao , Xue Yang , Kai Jiang , Yunsong Li

Contrastive Language-Image Pre-training (CLIP) has become a foundation model and has been applied to various vision and multimodal tasks. However, recent works indicate that CLIP falls short in distinguishing detailed differences in images…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Yinqi Li , Jiahe Zhao , Hong Chang , Ruibing Hou , Shiguang Shan , Xilin Chen

Dense visual prediction tasks have been constrained by their reliance on predefined categories, limiting their applicability in real-world scenarios where visual concepts are unbounded. While Vision-Language Models (VLMs) like CLIP have…

Computer Vision and Pattern Recognition · Computer Science 2025-05-08 Junjie Wang , Bin Chen , Yulin Li , Bin Kang , Yichi Chen , Zhuotao Tian

Few-shot, fine-grained classification in computer vision poses significant challenges due to the need to differentiate subtle class distinctions with limited data. This paper presents a novel method that enhances the Contrastive…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Eric Brouwer , Jan Erik van Woerden , Gertjan Burghouts , Matias Valdenegro-Toro , Marco Zullich

Vision-language models such as CLIP have shown impressive capabilities in aligning images and text, but they often struggle with lengthy and detailed text descriptions due to pre-training on short and concise captions. We present FAST-GOAL…

Artificial Intelligence · Computer Science 2026-05-27 Hyungyu Choi , Young Kyun Jang , Chanho Eom

This work aims to adapt large-scale pre-trained vision-language models, such as contrastive language-image pretraining (CLIP), to enhance the performance of object reidentification (Re-ID) across various supervision settings. Although…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Jiachen Li , Xiaojin Gong

Contrastive language image pre-training (CLIP) is an essential component of building modern vision-language foundation models. While CLIP demonstrates remarkable zero-shot performance on downstream tasks, the multi-modal feature spaces…

Computer Vision and Pattern Recognition · Computer Science 2025-04-18 Shin'ya Yamaguchi , Dewei Feng , Sekitoshi Kanai , Kazuki Adachi , Daiki Chijiwa

Recent research has shown that aligning fine-grained text descriptions with localized image patches can significantly improve the zero-shot performance of pre-trained vision-language models (e.g., CLIP). However, we find that both…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Yuhao Sun , Chengyi Cai , Jiacheng Zhang , Zesheng Ye , Xingliang Yuan , Feng Liu

Contrastive Language-Image Pre-training (CLIP) achieves remarkable performance in various downstream tasks through the alignment of image and text input embeddings and holds great promise for anomaly detection. However, our empirical…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Adam Goodge , Bryan Hooi , Wee Siong Ng

The application of zero-shot learning in computer vision has been revolutionized by the use of image-text matching models. The most notable example, CLIP, has been widely used for both zero-shot classification and guiding generative models…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Roni Paiss , Hila Chefer , Lior Wolf

Contrastive Language-Image Pre-training (CLIP) has been shown to learn visual representations with great transferability, which achieves promising accuracy for zero-shot classification. To further improve its downstream performance,…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Ziyu Guo , Renrui Zhang , Longtian Qiu , Xianzheng Ma , Xupeng Miao , Xuming He , Bin Cui

Scene understanding is essential for enhancing driver safety, generating human-centric explanations for Automated Vehicle (AV) decisions, and leveraging Artificial Intelligence (AI) for retrospective driving video analysis. This study…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Mohammed Elhenawy , Huthaifa I. Ashqar , Andry Rakotonirainy , Taqwa I. Alhadidi , Ahmed Jaber , Mohammad Abu Tami

Contrastive Language-Image Pre-training (CLIP) learns rich representations via readily available supervision of natural language. It improves the performance of downstream vision tasks, including but not limited to the zero-shot, long tail,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Yi Li , Hualiang Wang , Yiqun Duan , Hang Xu , Xiaomeng Li

The contrastive vision-language pre-training, known as CLIP, demonstrates remarkable potential in perceiving open-world visual concepts, enabling effective zero-shot image recognition. Nevertheless, few-shot learning methods based on CLIP…

Computer Vision and Pattern Recognition · Computer Science 2024-01-12 Cheng Cheng , Lin Song , Ruoyi Xue , Hang Wang , Hongbin Sun , Yixiao Ge , Ying Shan

The CLIP model's outstanding generalization has driven recent success in Zero-Shot Anomaly Detection (ZSAD) for detecting anomalies in unseen categories. The core challenge in ZSAD is to specialize the model for anomaly detection tasks…

Computer Vision and Pattern Recognition · Computer Science 2026-03-05 Jun Yeong Park , JunYoung Seo , Minji Kang , Yu Rang Park

Multimodal search has revolutionized the fashion industry, providing a seamless and intuitive way for users to discover and explore fashion items. Based on their preferences, style, or specific attributes, users can search for products by…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Prithviraj Purushottam Naik , Rohit Agarwal

Object localization is a hot issue in computer vision area, which aims to identify and determine the precise location of specific objects from image or video. Most existing object localization methods heavily rely on extensive labeled data,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Jingjing Wang , Xinglin Piao , Zongzhi Gao , Bo Li , Yong Zhang , Baocai Yin

We introduce Patch Aligned Contrastive Learning (PACL), a modified compatibility function for CLIP's contrastive loss, intending to train an alignment between the patch tokens of the vision encoder and the CLS token of the text encoder.…

Computer Vision and Pattern Recognition · Computer Science 2022-12-12 Jishnu Mukhoti , Tsung-Yu Lin , Omid Poursaeed , Rui Wang , Ashish Shah , Philip H. S. Torr , Ser-Nam Lim