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Weakly supervised semantic segmentation produces a pixel-level localization from a classifier, but it is likely to restrict its focus to a small discriminative region of the target object. AdvCAM is an attribution map of an image that is…

Computer Vision and Pattern Recognition · Computer Science 2021-03-17 Jungbeom Lee , Eunji Kim , Sungroh Yoon

The image-level label has prevailed in weakly supervised semantic segmentation tasks due to its easy availability. Since image-level labels can only indicate the existence or absence of specific categories of objects, visualization-based…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Tao Chen , Yazhou Yao , Xingguo Huang , Zechao Li , Liqiang Nie , Jinhui Tang

Weakly-supervised object detection (WSOD) has emerged as an inspiring recent topic to avoid expensive instance-level object annotations. However, the bounding boxes of most existing WSOD methods are mainly determined by precomputed…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Bowen Dong , Zitong Huang , Yuelin Guo , Qilong Wang , Zhenxing Niu , Wangmeng Zuo

Model-Agnostic Meta-Learning (MAML) is one of the most successful meta-learning techniques for few-shot learning. It uses gradient descent to learn commonalities between various tasks, enabling the model to learn the meta-initialization of…

Machine Learning · Computer Science 2022-08-18 Lin Ding , Peng Liu , Wenfeng Shen , Weijia Lu , Shengbo Chen

We propose a method for effectively utilizing weakly annotated image data in an object detection tasks of breast ultrasound images. Given the problem setting where a small, strongly annotated dataset and a large, weakly annotated dataset…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 JooYeol Yun , JungWoo Oh , IlDong Yun

The Class Activation Map (CAM) lookup of a neural network tells us to which regions the neural network focuses when it makes a decision. In the past, the CAM search method was dependent upon a specific internal module of the network. It has…

Computer Vision and Pattern Recognition · Computer Science 2022-08-16 Yitao Peng , Longzhen Yang , Yihang Liu , Lianghua He

Deep learning models have achieved excellent recognition results on large-scale video benchmarks. However, they perform poorly when applied to videos with rare scenes or objects, primarily due to the bias of existing video datasets. We…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Haodong Duan , Yue Zhao , Kai Chen , Yuanjun Xiong , Dahua Lin

We propose a sparse-coding framework for activity recognition in ubiquitous and mobile computing that alleviates two fundamental problems of current supervised learning approaches. (i) It automatically derives a compact, sparse and…

Machine Learning · Computer Science 2014-07-24 Sourav Bhattacharya , Petteri Nurmi , Nils Hammerla , Thomas Plötz

Model explanations such as saliency maps can improve user trust in AI by highlighting important features for a prediction. However, these become distorted and misleading when explaining predictions of images that are subject to systematic…

Human-Computer Interaction · Computer Science 2022-03-02 Wencan Zhang , Mariella Dimiccoli , Brian Y. Lim

Weakly Supervised Semantic Segmentation (WSSS) techniques explore individual regularization strategies to refine Class Activation Maps (CAMs). In this work, we first analyze complementary WSSS techniques in the literature, their…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Lucas David , Helio Pedrini , Zanoni Dias

Deep learning techniques have shown great potential in medical image processing, particularly through accurate and reliable image segmentation on magnetic resonance imaging (MRI) scans or computed tomography (CT) scans, which allow the…

Image and Video Processing · Electrical Eng. & Systems 2022-05-10 Yang Liu , Ersi Zhang , Lulu Xu , Chufan Xiao , Xiaoyun Zhong , Lijin Lian , Fang Li , Bin Jiang , Yuhan Dong , Lan Ma , Qiming Huang , Ming Xu , Yongbing Zhang , Dongmei Yu , Chenggang Yan , Peiwu Qin

Sharpness-Aware Minimization (SAM) is a recent training method that relies on worst-case weight perturbations which significantly improves generalization in various settings. We argue that the existing justifications for the success of SAM…

Machine Learning · Computer Science 2022-06-14 Maksym Andriushchenko , Nicolas Flammarion

We present a weakly supervised deep learning method to perform instance segmentation of cells present in microscopy images. Annotation of biomedical images in the lab can be scarce, incomplete, and inaccurate. This is of concern when…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Fidel A. Guerrero-Peña , Pedro D. Marrero Fernandez , Tsang Ing Ren , Alexandre Cunha

Segment Anything Model (SAM), known for its remarkable zero-shot segmentation capabilities, has garnered significant attention in the community. Nevertheless, its performance is challenged when dealing with what we refer to as visually…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Guangqian Guo , Pengfei Chen , Yong Guo , Huafeng Chen , Boqiang Zhang , Shan Gao

The Self-Organizing Map (SOM) is a brain-inspired neural model that is very promising for unsupervised learning, especially in embedded applications. However, it is unable to learn efficient prototypes when dealing with complex datasets. We…

Neural and Evolutionary Computing · Computer Science 2020-09-07 Lyes Khacef , Laurent Rodriguez , Benoit Miramond

While deep learning has been successfully applied to the data-driven classification of anomalous diffusion mechanisms, how the algorithm achieves the feat still remains a mystery. In this study, we use a well-known technique aimed at…

Machine Learning · Computer Science 2024-10-23 Jaeyong Bae , Yongjoo Baek , Hawoong Jeong

Weakly supervised object localization (WSOL) focuses on localizing objects only with the supervision of image-level classification masks. Most previous WSOL methods follow the classification activation map (CAM) that localizes objects based…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Lei Zhu , Qi She , Qian Chen , Yunfei You , Boyu Wang , Yanye Lu

Salient Object Detection (SOD) with deep learning often requires substantial computational resources and large annotated datasets, making it impractical for resource-constrained applications. Lightweight models address computational demands…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Leonardo M. Joao , Jancarlo F. Gomes , Silvio J. F. Guimaraes , Ewa Kijak , Alexandre X. Falcao

Video Anomaly Detection (VAD) has been extensively studied under the settings of One-Class Classification (OCC) and Weakly-Supervised learning (WS), which however both require laborious human-annotated normal/abnormal labels. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Yongwei Nie , Hao Huang , Chengjiang Long , Qing Zhang , Pradipta Maji , Hongmin Cai

Deep Active Learning (DAL) has been advocated as a promising method to reduce labeling costs in supervised learning. However, existing evaluations of DAL methods are based on different settings, and their results are controversial. To…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Yu Li , Muxi Chen , Yannan Liu , Daojing He , Qiang Xu