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Existing weakly supervised group activity recognition methods rely on object detectors or attention mechanisms to capture key areas automatically. However, they overlook the semantic information associated with captured areas, which may…

Computer Vision and Pattern Recognition · Computer Science 2025-02-17 Zhuming Wang , Yihao Zheng , Jiarui Li , Yaofei Wu , Yan Huang , Zun Li , Lifang Wu , Liang Wang

Effective image retrieval with text feedback stands to impact a range of real-world applications, such as e-commerce. Given a source image and text feedback that describes the desired modifications to that image, the goal is to retrieve the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Yuxin Tian , Shawn Newsam , Kofi Boakye

Vision-language models like CLIP show impressive ability to align images and text, but their training on short, concise captions makes them struggle with lengthy, detailed descriptions. Recent advances mitigate this challenge by leveraging…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Chau Truong , Hieu Ta Quang , Dung D. Le

Securing a sufficient amount of paired data is important to train an image-text retrieval (ITR) model, but collecting paired data is very expensive. To address this issue, in this paper, we propose an active learning algorithm for ITR that…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Dae Ung Jo , Kyuewang Lee , JaeHo Chung , Jin Young Choi

Contrastive Language-Image Pretraining (CLIP) models maximize the mutual information between text and visual modalities to learn representations. This makes the nature of the training data a significant factor in the efficacy of CLIP for…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Maitreya Patel , Abhiram Kusumba , Sheng Cheng , Changhoon Kim , Tejas Gokhale , Chitta Baral , Yezhou Yang

Self-supervised contrastive learning models, such as CLIP, have set new benchmarks for vision-language models in many downstream tasks. However, their dependency on rigid one-to-one mappings overlooks the complex and often multifaceted…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yiming Zhang , Zhuokai Zhao , Zhaorun Chen , Zhili Feng , Zenghui Ding , Yining Sun

In group activity recognition, hierarchical framework is widely adopted to represent the relationships between individuals and their corresponding group, and has achieved promising performance. However, the existing methods simply employed…

Computer Vision and Pattern Recognition · Computer Science 2022-09-01 Ding Li , Yuan Xie , Wensheng Zhang , Yongqiang Tang , Zhizhong Zhang

A major challenge in text-video and text-audio retrieval is the lack of large-scale training data. This is unlike image-captioning, where datasets are in the order of millions of samples. To close this gap we propose a new video mining…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Arsha Nagrani , Paul Hongsuck Seo , Bryan Seybold , Anja Hauth , Santiago Manen , Chen Sun , Cordelia Schmid

In multimodal learning, CLIP has emerged as the de-facto approach for mapping different modalities into a shared latent space by bringing semantically similar representations closer while pushing apart dissimilar ones. However, CLIP-based…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Eleonora Grassucci , Giordano Cicchetti , Danilo Comminiello

Contrastive Language-Image Pre-training (CLIP) formulates image classification as an image-to-text matching task, i.e., matching images to the corresponding natural language descriptions instead of discrete category IDs. This allows for…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Shuhuai Ren , Lei Li , Xuancheng Ren , Guangxiang Zhao , Xu Sun

Previous group activity recognition approaches were limited to reasoning using human relations or finding important subgroups and tended to ignore indispensable group composition and human-object interactions. This absence makes a partial…

Computer Vision and Pattern Recognition · Computer Science 2023-05-10 Youliang Zhang , Zhuo Zhou , Wenxuan Liu , Danni Xu , Zheng Wang

Drug Mechanism of Action (MoA) mainly investigates how drug molecules interact with cells, which is crucial for drug discovery and clinical application. Recently, deep learning models have been used to recognize MoA by relying on…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Fengqian Pang , Chunyue Lei , Hongfei Zhao , Chenghao Liu , Zhiqiang Xing , Huafeng Wang , Chuyang Ye

Continuity of care is crucial to ensuring positive health outcomes for patients discharged from an inpatient hospital setting, and improved information sharing can help. To share information, caregivers write discharge notes containing…

Computation and Language · Computer Science 2021-06-07 James Mullenbach , Yada Pruksachatkun , Sean Adler , Jennifer Seale , Jordan Swartz , T. Greg McKelvey , Hui Dai , Yi Yang , David Sontag

Text-guided image generation aimed to generate desired images conditioned on given texts, while text-guided image manipulation refers to semantically edit parts of a given image based on specified texts. For these two similar tasks, the key…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Xiaozhou You , Jian Zhang

Recognizing the activities causing distraction in real-world driving scenarios is critical for ensuring the safety and reliability of both drivers and pedestrians on the roadways. Conventional computer vision techniques are typically…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Md Zahid Hasan , Jiajing Chen , Jiyang Wang , Mohammed Shaiqur Rahman , Ameya Joshi , Senem Velipasalar , Chinmay Hegde , Anuj Sharma , Soumik Sarkar

Many active learning and search approaches are intractable for large-scale industrial settings with billions of unlabeled examples. Existing approaches search globally for the optimal examples to label, scaling linearly or even…

Text-Pedestrian Image Retrieval aims to use the text describing pedestrian appearance to retrieve the corresponding pedestrian image. This task involves not only modality discrepancy, but also the challenge of the textual diversity of…

Computer Vision and Pattern Recognition · Computer Science 2023-08-24 Huafeng Li , Shedan Yang , Yafei Zhang , Dapeng Tao , Zhengtao Yu

As the request for deep learning solutions increases, the need for explainability is even more fundamental. In this setting, particular attention has been given to visualization techniques, that try to attribute the right relevance to each…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Samuele Poppi , Marcella Cornia , Lorenzo Baraldi , Rita Cucchiara

Visual perceptual tasks aim to predict human judgment of images (e.g., emotions invoked by images, image quality assessment). Unlike objective tasks such as object/scene recognition, perceptual tasks rely on subjective human assessments,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Amit Zalcher , Navve Wasserman , Roman Beliy , Oliver Heinimann , Michal Irani

Contrastive Language and Image Pairing (CLIP), a transformative method in multimedia retrieval, typically trains two neural networks concurrently to generate joint embeddings for text and image pairs. However, when applied directly, these…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Konstantin Schall , Kai Uwe Barthel , Nico Hezel , Klaus Jung