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Synthetic images are an option for augmenting limited medical imaging datasets to improve the performance of various machine learning models. A common metric for evaluating synthetic image quality is the Fr\'echet Inception Distance (FID)…

Image and Video Processing · Electrical Eng. & Systems 2025-07-30 Thomas Wallace , Ik Siong Heng , Senad Subasic , Chris Messenger

Automated data augmentation, which aims at engineering augmentation policy automatically, recently draw a growing research interest. Many previous auto-augmentation methods utilized a Density Matching strategy by evaluating policies in…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Jianwei Zhang , Dong Li , Lituan Wang , Lei Zhang

Data Augmentation (DA) is a technique to increase the quantity and diversity of the training data, and by that alleviate overfitting and improve generalisation. However, standard DA produces synthetic data for augmentation with limited…

Computer Vision and Pattern Recognition · Computer Science 2023-07-24 Lorenzo Tronchin , Minh H. Vu , Paolo Soda , Tommy Löfstedt

Although high resolution isotropic 3D medical images are desired in clinical practice, their acquisition is not always feasible. Instead, lower resolution images are upsampled to higher resolution using conventional interpolation methods.…

Image and Video Processing · Electrical Eng. & Systems 2020-10-27 Jörg Sander , Bob D. de Vos , Ivana Išgum

A common problem in computer vision -- particularly in medical applications -- is a lack of sufficiently diverse, large sets of training data. These datasets often suffer from severe class imbalance. As a result, networks often overfit and…

Image and Video Processing · Electrical Eng. & Systems 2021-07-08 Shobhita Sundaram , Neha Hulkund

Class imbalance (CI) in classification problems arises when the number of observations belonging to one class is lower than the other. Ensemble learning combines multiple models to obtain a robust model and has been prominently used with…

Machine Learning · Computer Science 2023-11-28 Azal Ahmad Khan , Omkar Chaudhari , Rohitash Chandra

Data augmentation is an effective technique for improving the accuracy of modern image classifiers. However, current data augmentation implementations are manually designed. In this paper, we describe a simple procedure called AutoAugment…

Computer Vision and Pattern Recognition · Computer Science 2019-04-15 Ekin D. Cubuk , Barret Zoph , Dandelion Mane , Vijay Vasudevan , Quoc V. Le

Currently, the Morpho-Constitutional Analysis (MCA) is the de facto approach for the etiological diagnosis of kidney stone formation, and it is an important step for establishing personalized treatment to avoid relapses. More recently,…

Early detection of breast cancer has a major contribution to curability, and using mammographic images, this can be achieved non-invasively. Supervised deep learning, the dominant CADe tool currently, has played a great role in object…

Image and Video Processing · Electrical Eng. & Systems 2019-09-06 Basel Alyafi , Oliver Diaz , Robert Marti

Deep learning methods can classify various unstructured data such as images, language, and voice as input data. As the task of classifying anomalies becomes more important in the real world, various methods exist for classifying using deep…

Computer Vision and Pattern Recognition · Computer Science 2022-01-06 UJu Gim , YeongHyeon Park

Automated data augmentation has shown superior performance in image recognition. Existing works search for dataset-level augmentation policies without considering individual sample variations, which are likely to be sub-optimal. On the…

Machine Learning · Computer Science 2020-12-23 Fengwei Zhou , Jiawei Li , Chuanlong Xie , Fei Chen , Lanqing Hong , Rui Sun , Zhenguo Li

Data augmentation is an effective and universal technique for improving generalization performance of deep neural networks. It could enrich diversity of training samples that is essential in medical image segmentation tasks because 1) the…

Image and Video Processing · Electrical Eng. & Systems 2020-12-29 Ju Xu , Mengzhang Li , Zhanxing Zhu

The standard approach to tackling computer vision problems is to train deep convolutional neural network (CNN) models using large-scale image datasets which are representative of the target task. However, in many scenarios, it is often…

Computer Vision and Pattern Recognition · Computer Science 2024-04-01 Alhassan Mumuni , Fuseini Mumuni , Nana Kobina Gerrar

In biomedical engineering, artificial intelligence has become a pivotal tool for enhancing medical diagnostics, particularly in medical image classification tasks such as detecting pneumonia from chest X-rays and breast cancer screening.…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Jingsong Xia , Siqi Wang

Although data augmentation is a powerful technique for improving the performance of image classification tasks, it is difficult to identify the best augmentation policy. The optimal augmentation policy, which is the latent variable, cannot…

Computer Vision and Pattern Recognition · Computer Science 2023-05-05 Koichi Kuriyama

Reward modeling, crucial for aligning large language models (LLMs) with human preferences, is often bottlenecked by the high cost of preference data. Existing textual data synthesis methods are computationally expensive. We propose a novel…

Computation and Language · Computer Science 2025-10-15 Leitian Tao , Xuefeng Du , Sharon Li

Image classification has been a popular task due to its feasibility in real-world applications. Training neural networks by feeding them RGB images has demonstrated success over it. Nevertheless, improving the classification accuracy and…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Tianhao Bu , Michalis Lazarou , Tania Stathaki

Deep learning models have gained remarkable performance on a variety of image classification tasks. However, many models suffer from limited performance in clinical or medical settings when data are imbalanced. To address this challenge, we…

Image and Video Processing · Electrical Eng. & Systems 2022-04-15 Long Gao , Chang Liu , Dooman Arefan , Ashok Panigrahy , Margarita L. Zuley , Shandong Wu

Deep learning approaches are successful in a wide range of AI problems and in particular for visual recognition tasks. However, there are still open problems among which is the capacity to handle streams of visual information and the…

Machine Learning · Computer Science 2022-02-02 Umang Aggarwal , Adrian Popescu , Eden Belouadah , Céline Hudelot

In this paper, we address a key scientific problem in machine learning: Given a training set for an image classification task, can we train a generative model on this dataset to enhance the classification performance? (i.e., closed-set…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Haowen Wang , Guowei Zhang , Xiang Zhang , Zeyuan Chen , Haiyang Xu , Dou Hoon Kwark , Zhuowen Tu