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In recent years, the task of weakly supervised audio-visual violence detection has gained considerable attention. The goal of this task is to identify violent segments within multimodal data based on video-level labels. Despite advances in…

Computer Vision and Pattern Recognition · Computer Science 2024-02-14 Xiaogang Peng , Hao Wen , Yikai Luo , Xiao Zhou , Keyang Yu , Ping Yang , Zizhao Wu

Knowledge Distillation (KD) has been used in image classification for model compression. However, rare studies apply this technology on single-stage object detectors. Focal loss shows that the accumulated errors of easily-classified samples…

Computer Vision and Pattern Recognition · Computer Science 2019-01-15 Shitao Tang , Litong Feng , Wenqi Shao , Zhanghui Kuang , Wei Zhang , Yimin Chen

Weakly supervised learning has emerged as a compelling tool for object detection by reducing the need for strong supervision during training. However, major challenges remain: (1) differentiation of object instances can be ambiguous; (2)…

Computer Vision and Pattern Recognition · Computer Science 2020-10-22 Zhongzheng Ren , Zhiding Yu , Xiaodong Yang , Ming-Yu Liu , Yong Jae Lee , Alexander G. Schwing , Jan Kautz

Cross-modality distillation arises as an important topic for data modalities containing limited knowledge such as depth maps and high-quality sketches. Such techniques are of great importance, especially for memory and privacy-restricted…

Machine Learning · Computer Science 2024-05-29 Hangyu Lin , Chen Liu , Chengming Xu , Zhengqi Gao , Yanwei Fu , Yuan Yao

In computational pathology, weak supervision has become the standard for deep learning due to the gigapixel scale of WSIs and the scarcity of pixel-level annotations, with Multiple Instance Learning (MIL) established as the principal…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Andreas Lolos , Theofilos Christodoulou , Aris L. Moustakas , Stergios Christodoulidis , Maria Vakalopoulou

Instance segmentation demands costly per-pixel annotations and computationally expensive models. We introduce CAST, a semi-supervised knowledge distillation (SSKD) framework that compresses pre-trained vision foundation models (VFM) into…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Pardis Taghavi , Tian Liu , Renjie Li , Reza Langari , Zhengzhong Tu

Improving the performance of semantic segmentation models using multispectral information is crucial, especially for environments with low-light and adverse conditions. Multi-modal fusion techniques pursue either the learning of…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Aniruddh Sikdar , Jayant Teotia , Suresh Sundaram

Multimodal transfer learning aims to transform pretrained representations of diverse modalities into a common domain space for effective multimodal fusion. However, conventional systems are typically built on the assumption that all…

Computer Vision and Pattern Recognition · Computer Science 2023-09-28 Yanan Wang , Donghuo Zeng , Shinya Wada , Satoshi Kurihara

Although the vision-and-language pretraining (VLP) equipped cross-modal image-text retrieval (ITR) has achieved remarkable progress in the past two years, it suffers from a major drawback: the ever-increasing size of VLP models restricts…

Multimedia · Computer Science 2022-07-05 Jun Rao , Liang Ding , Shuhan Qi , Meng Fang , Yang Liu , Li Shen , Dacheng Tao

Weakly-Supervised Dense Video Captioning aims to localize and describe events in videos trained only on caption annotations, without temporal boundaries. Prior work introduced an implicit supervision paradigm based on Gaussian masking and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Ye-Chan Kim , SeungJu Cha , Si-Woo Kim , Minju Jeon , Hyungee Kim , Dong-Jin Kim

Recently, contrastive learning has achieved great results in self-supervised learning, where the main idea is to push two augmentations of an image (positive pairs) closer compared to other random images (negative pairs). We argue that not…

Computer Vision and Pattern Recognition · Computer Science 2021-09-13 Ajinkya Tejankar , Soroush Abbasi Koohpayegani , Vipin Pillai , Paolo Favaro , Hamed Pirsiavash

In recent years, the explosion of web videos makes text-video retrieval increasingly essential and popular for video filtering, recommendation, and search. Text-video retrieval aims to rank relevant text/video higher than irrelevant ones.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Chen Jiang , Hong Liu , Xuzheng Yu , Qing Wang , Yuan Cheng , Jia Xu , Zhongyi Liu , Qingpei Guo , Wei Chu , Ming Yang , Yuan Qi

Multiple Instance Learning (MIL) has been widely applied to medical imaging diagnosis, where bag labels are known and instance labels inside bags are unknown. Traditional MIL assumes that instances in each bag are independent samples from a…

Image and Video Processing · Electrical Eng. & Systems 2023-07-19 Yunan Wu , Francisco M. Castro-Macías , Pablo Morales-Álvarez , Rafael Molina , Aggelos K. Katsaggelos

Despite the substantial progress of active learning for image recognition, there still lacks an instance-level active learning method specified for object detection. In this paper, we propose Multiple Instance Active Object Detection…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Tianning Yuan , Fang Wan , Mengying Fu , Jianzhuang Liu , Songcen Xu , Xiangyang Ji , Qixiang Ye

Language-supervised vision models have recently attracted great attention in computer vision. A common approach to build such models is to use contrastive learning on paired data across the two modalities, as exemplified by Contrastive…

Machine Learning · Computer Science 2023-03-16 Ryumei Nakada , Halil Ibrahim Gulluk , Zhun Deng , Wenlong Ji , James Zou , Linjun Zhang

Multimodal deep learning holds promise for improving clinical prediction by integrating diverse patient data, including text, imaging, time-series, and structured demographics. Contrastive learning facilitates this integration by producing…

Machine Learning · Computer Science 2025-07-08 Michal Golovanevsky , Pranav Mahableshwarkar , Carsten Eickhoff , Ritambhara Singh

High-quality Late Gadolinium Enhancement (LGE) MRI can be helpful for atrial fibrillation management, yet scan quality is frequently compromised by patient motion, irregular breathing, and suboptimal image acquisition timing. While Multiple…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 K M Arefeen Sultan , Kaysen Hansen , Benjamin Orkild , Alan Morris , Eugene Kholmovski , Erik Bieging , Eugene Kwan , Ravi Ranjan , Ed DiBella , Shireen Elhabian

When applying multi-instance learning (MIL) to make predictions for bags of instances, the prediction accuracy of an instance often depends on not only the instance itself but also its context in the corresponding bag. From the viewpoint of…

Computer Vision and Pattern Recognition · Computer Science 2022-04-25 Tiancheng Lin , Hongteng Xu , Canqian Yang , Yi Xu

Learning common subspace is prevalent way in cross-modal retrieval to solve the problem of data from different modalities having inconsistent distributions and representations that cannot be directly compared. Previous cross-modal retrieval…

Multimedia · Computer Science 2021-10-27 Donghuo Zeng , Jianming Wu , Gen Hattori , Yi Yu , Rong Xu

Unsupervised anomaly detection using deep learning has garnered significant research attention due to its broad applicability, particularly in medical imaging where labeled anomalous data are scarce. While earlier approaches leverage…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Chunlei Li , Yilei Shi , Jingliang Hu , Xiao Xiang Zhu , Lichao Mou