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From paired image-text training to text-only training for image captioning, the pursuit of relaxing the requirements for high-cost and large-scale annotation of good quality data remains consistent. In this paper, we propose Text-only…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Qing Zhou , Junlin Huang , Qiang Li , Junyu Gao , Qi Wang

Despite recent progress in video and language representation learning, the weak or sparse correspondence between the two modalities remains a bottleneck in the area. Most video-language models are trained via pair-level loss to predict…

Machine Learning · Computer Science 2022-10-12 Zixu Wang , Yujie Zhong , Yishu Miao , Lin Ma , Lucia Specia

Multi-modal reasoning in visual question answering (VQA) has witnessed rapid progress recently. However, most reasoning models heavily rely on shortcuts learned from training data, which prevents their usage in challenging real-world…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Qi Zheng , Chaoyue Wang , Daqing Liu , Dadong Wang , Dacheng Tao

Multimodal models are becoming increasingly effective, in part due to unified components, such as the Transformer architecture. However, multimodal models still often consist of many task- and modality-specific pieces and training…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Michael Tschannen , Basil Mustafa , Neil Houlsby

Unsupervised contrastive learning achieves great success in learning image representations with CNN. Unlike most recent methods that focused on improving accuracy of image classification, we present a novel contrastive learning approach,…

Computer Vision and Pattern Recognition · Computer Science 2021-07-26 Enze Xie , Jian Ding , Wenhai Wang , Xiaohang Zhan , Hang Xu , Peize Sun , Zhenguo Li , Ping Luo

Recent advancements in diffusion models have enabled the generation of realistic deepfakes from textual prompts in natural language. While these models have numerous benefits across various sectors, they have also raised concerns about the…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Roberto Amoroso , Davide Morelli , Marcella Cornia , Lorenzo Baraldi , Alberto Del Bimbo , Rita Cucchiara

We propose contrastive coding to learn shared, dense image representations, referred to as CoMIRs (Contrastive Multimodal Image Representations). CoMIRs enable the registration of multimodal images where existing registration methods often…

Computer Vision and Pattern Recognition · Computer Science 2021-01-14 Nicolas Pielawski , Elisabeth Wetzer , Johan Öfverstedt , Jiahao Lu , Carolina Wählby , Joakim Lindblad , Nataša Sladoje

Recent unsupervised approaches to domain adaptation primarily focus on minimizing the gap between the source and the target domains through refining the feature generator, in order to learn a better alignment between the two domains. This…

Machine Learning · Computer Science 2020-10-08 Shuyang Dai , Yu Cheng , Yizhe Zhang , Zhe Gan , Jingjing Liu , Lawrence Carin

In this paper, we present our solution to the New frontiers for Zero-shot Image Captioning Challenge. Different from the traditional image captioning datasets, this challenge includes a larger new variety of visual concepts from many…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Xiangyu Wu , Yi Gao , Hailiang Zhang , Yang Yang , Weili Guo , Jianfeng Lu

Describing images in natural language is a fundamental step towards the automatic modeling of connections between the visual and textual modalities. In this paper we present CaMEL, a novel Transformer-based architecture for image…

Computer Vision and Pattern Recognition · Computer Science 2022-02-23 Manuele Barraco , Matteo Stefanini , Marcella Cornia , Silvia Cascianelli , Lorenzo Baraldi , Rita Cucchiara

A great deal of progress has been made in image captioning, driven by research into how to encode the image using pre-trained models. This includes visual encodings (e.g. image grid features or detected objects) and more recently textual…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Chia-Wen Kuo , Zsolt Kira

Recently, the cross-modal pre-training task has been a hotspot because of its wide application in various down-streaming researches including retrieval, captioning, question answering and so on. However, exiting methods adopt a one-stream…

Computer Vision and Pattern Recognition · Computer Science 2022-07-11 Keyu Wen , Zhenshan Tan , Qingrong Cheng , Cheng Chen , Xiaodong Gu

In an unpaired setting, lacking sufficient content constraints for image-to-image translation (I2I) tasks, GAN-based approaches are usually prone to model collapse. Current solutions can be divided into two categories, reconstruction-based…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Xiuding Cai , Yaoyao Zhu , Dong Miao , Linjie Fu , Yu Yao

Faithful generation in large language models (LLMs) is challenged by knowledge conflicts between parametric memory and external context. Existing contrastive decoding methods tuned specifically to handle conflict often lack adaptability and…

Computation and Language · Computer Science 2025-08-28 Anant Khandelwal , Manish Gupta , Puneet Agrawal

Instance contrast for unsupervised representation learning has achieved great success in recent years. In this work, we explore the idea of instance contrastive learning in unsupervised domain adaptation (UDA) and propose a novel Category…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Jiaxing Huang , Dayan Guan , Aoran Xiao , Shijian Lu , Ling Shao

Recent text-to-image matching models apply contrastive learning to large corpora of uncurated pairs of images and sentences. While such models can provide a powerful score for matching and subsequent zero-shot tasks, they are not capable of…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Yoad Tewel , Yoav Shalev , Idan Schwartz , Lior Wolf

Image-text retrieval is a central problem for understanding the semantic relationship between vision and language, and serves as the basis for various visual and language tasks. Most previous works either simply learn coarse-grained…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Chong Liu , Yuqi Zhang , Hongsong Wang , Weihua Chen , Fan Wang , Yan Huang , Yi-Dong Shen , Liang Wang

Diverse image captioning models aim to learn one-to-many mappings that are innate to cross-domain datasets, such as of images and texts. Current methods for this task are based on generative latent variable models, e.g. VAEs with structured…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Shweta Mahajan , Stefan Roth

Self-supervised representation learning techniques have been developing rapidly to make full use of unlabeled images. They encode images into rich features that are oblivious to downstream tasks. Behind their revolutionary representation…

Cryptography and Security · Computer Science 2023-03-28 Zeyang Sha , Xinlei He , Ning Yu , Michael Backes , Yang Zhang

Image captioning is one of the straightforward tasks that can take advantage of large-scale web-crawled data which provides rich knowledge about the visual world for a captioning model. However, since web-crawled data contains image-text…

Computer Vision and Pattern Recognition · Computer Science 2023-09-28 Wooyoung Kang , Jonghwan Mun , Sungjun Lee , Byungseok Roh