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The development of CLIP [Radford et al., 2021] has sparked a debate on whether language supervision can result in vision models with more transferable representations than traditional image-only methods. Our work studies this question…

Computer Vision and Pattern Recognition · Computer Science 2022-07-18 Shibani Santurkar , Yann Dubois , Rohan Taori , Percy Liang , Tatsunori Hashimoto

Methods based on Contrastive Language-Image Pre-training (CLIP) are nowadays extensively used in support of vision-and-language tasks involving remote sensing data, such as cross-modal retrieval. The adaptation of CLIP to this specific…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 João Daniel Silva , Joao Magalhaes , Devis Tuia , Bruno Martins

Vision-Language Pretraining (VLP) has achieved remarkable success across various downstream tasks, but such gains are largely driven by scaling up on training data. Yet, literature methods treat image-text pairs as isolated training…

Computer Vision and Pattern Recognition · Computer Science 2025-11-06 Wenbo Lu

The challenge of unsupervised person re-identification (ReID) lies in learning discriminative features without true labels. This paper formulates unsupervised person ReID as a multi-label classification task to progressively seek true…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Dongkai Wang , Shiliang Zhang

We present Fast Language-Image Pre-training (FLIP), a simple and more efficient method for training CLIP. Our method randomly masks out and removes a large portion of image patches during training. Masking allows us to learn from more…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Yanghao Li , Haoqi Fan , Ronghang Hu , Christoph Feichtenhofer , Kaiming He

Self-supervised learning has attracted plenty of recent research interest. However, most works for self-supervision in speech are typically unimodal and there has been limited work that studies the interaction between audio and visual…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-19 Abhinav Shukla , Stavros Petridis , Maja Pantic

We propose a novel unsupervised backlit image enhancement method, abbreviated as CLIP-LIT, by exploring the potential of Contrastive Language-Image Pre-Training (CLIP) for pixel-level image enhancement. We show that the open-world CLIP…

Computer Vision and Pattern Recognition · Computer Science 2023-10-02 Zhexin Liang , Chongyi Li , Shangchen Zhou , Ruicheng Feng , Chen Change Loy

Person Re-Identification (ReID) remains a challenging problem in computer vision. This work reviews various training paradigm and evaluates the robustness of state-of-the-art ReID models in cross-domain applications and examines the role of…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Lakshman Balasubramanian

In person re-identification (ReID), very recent researches have validated pre-training the models on unlabelled person images is much better than on ImageNet. However, these researches directly apply the existing self-supervised learning…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Kuan Zhu , Haiyun Guo , Tianyi Yan , Yousong Zhu , Jinqiao Wang , Ming Tang

We present RECLIP (Resource-efficient CLIP), a simple method that minimizes computational resource footprint for CLIP (Contrastive Language Image Pretraining). Inspired by the notion of coarse-to-fine in computer vision, we leverage small…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Runze Li , Dahun Kim , Bir Bhanu , Weicheng Kuo

Existing person re-identification (ReID) methods typically directly load the pre-trained ImageNet weights for initialization. However, as a fine-grained classification task, ReID is more challenging and exists a large domain gap between…

Computer Vision and Pattern Recognition · Computer Science 2021-12-02 Zizheng Yang , Xin Jin , Kecheng Zheng , Feng Zhao

The pre-trained image-text models, like CLIP, have demonstrated the strong power of vision-language representation learned from a large scale of web-collected image-text data. In light of the well-learned visual features, some existing…

Computer Vision and Pattern Recognition · Computer Science 2023-03-03 Hongwei Xue , Yuchong Sun , Bei Liu , Jianlong Fu , Ruihua Song , Houqiang Li , Jiebo Luo

Person Re-identification is a research area with significant real world applications. Despite recent progress, existing methods face challenges in robust re-identification in the wild, e.g., by focusing only on a particular modality and on…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Siyuan Huang , Ram Prabhakar , Yuxiang Guo , Rama Chellappa , Cheng Peng

In this paper we propose a novel modification of Contrastive Language-Image Pre-Training (CLIP) guidance for the task of unsupervised backlit image enhancement. Our work builds on the state-of-the-art CLIP-LIT approach, which learns a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Tatiana Gaintseva , Martin Benning , Gregory Slabaugh

Language-image pre-training is an effective technique for learning powerful representations in general domains. However, when directly turning to person representation learning, these general pre-training methods suffer from unsatisfactory…

Computer Vision and Pattern Recognition · Computer Science 2024-05-30 Jialong Zuo , Jiahao Hong , Feng Zhang , Changqian Yu , Hanyu Zhou , Changxin Gao , Nong Sang , Jingdong Wang

This paper presents a CLIP-based unsupervised learning method for annotation-free multi-label image classification, including three stages: initialization, training, and inference. At the initialization stage, we take full advantage of the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-08 Rabab Abdelfattah , Qing Guo , Xiaoguang Li , Xiaofeng Wang , Song Wang

Text-to-image person re-identification (TIReID) aims to retrieve the target person from an image gallery via a textual description query. Recently, pre-trained vision-language models like CLIP have attracted significant attention and have…

Computer Vision and Pattern Recognition · Computer Science 2024-01-05 Weihao Li , Lei Tan , Pingyang Dai , Yan Zhang

Self supervision and natural language supervision have emerged as two exciting ways to train general purpose image encoders which excel at a variety of downstream tasks. Recent works such as M3AE and SLIP have suggested that these…

Computer Vision and Pattern Recognition · Computer Science 2023-05-16 Floris Weers , Vaishaal Shankar , Angelos Katharopoulos , Yinfei Yang , Tom Gunter

Recently, large-scale Contrastive Language-Image Pre-training (CLIP) has attracted unprecedented attention for its impressive zero-shot recognition ability and excellent transferability to downstream tasks. However, CLIP is quite…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Yangguang Li , Feng Liang , Lichen Zhao , Yufeng Cui , Wanli Ouyang , Jing Shao , Fengwei Yu , Junjie Yan

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…

Computer Vision and Pattern Recognition · Computer Science 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