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Predicting the neural response to natural images in the visual cortex requires extracting relevant features from the images and relating those feature to the observed responses. In this work, we optimize the feature extraction in order to…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Alex Mulrooney , Austin J. Brockmeier

Unsupervised anomaly detection (UAD) methods are trained with normal (or healthy) images only, but during testing, they are able to classify normal and abnormal (or disease) images. UAD is an important medical image analysis (MIA) method to…

Image and Video Processing · Electrical Eng. & Systems 2023-08-16 Yu Tian , Fengbei Liu , Guansong Pang , Yuanhong Chen , Yuyuan Liu , Johan W. Verjans , Rajvinder Singh , Gustavo Carneiro

We introduce a neural network framework, utilizing adversarial learning to partition an image into two cuts, with one cut falling into a reference distribution provided by the user. This concept tackles the task of unsupervised anomaly…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Raunak Dey , Yi Hong

Self-supervised learning methods can be used to learn meaningful representations from unlabeled data that can be transferred to supervised downstream tasks to reduce the need for labeled data. In this paper, we propose a 3D self-supervised…

Machine Learning · Computer Science 2021-10-04 Yamen Ali , Aiham Taleb , Marina M. -C. Höhne , Christoph Lippert

This paper proposes an efficient system for classifying cervical cancer cells using pre-trained convolutional neural networks (CNNs). We first fine-tune five pre-trained CNNs and minimize the overall cost of misclassification by…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Ashfiqun Mustari , Rushmia Ahmed , Afsara Tasnim , Jakia Sultana Juthi , G M Shahariar

The clinical integration of deep learning models for brain tumor diagnosis in neuro-oncology is severely constrained by limited expert-annotated MRI data and substantial inter-institutional domain shift arising from variations in scanners,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-06 Sapna Sachan , Amulya Kumar Mahto , Prashant Wagambar Patil

This research proposes a very lightweight model "Fibonacci-Net" along with a novel pooling technique, for automatic brain tumor classification from imbalanced Magnetic Resonance Imaging (MRI) datasets. Automatic brain tumor detection from…

Image and Video Processing · Electrical Eng. & Systems 2025-03-19 Santanu Roy , Ashvath Suresh , Archit Gupta , Shubhi Tiwari , Palak Sahu , Prashant Adhikari , Yuvraj S. Shekhawat

Anomaly detection in medical imaging plays a crucial role in identifying pathological regions across various imaging modalities, such as brain MRI, liver CT, and carotid ultrasound (US). However, training fully supervised segmentation…

Image and Video Processing · Electrical Eng. & Systems 2025-07-29 Yuan Bi , Lucie Huang , Ricarda Clarenbach , Reza Ghotbi , Angelos Karlas , Nassir Navab , Zhongliang Jiang

Data imbalance remains one of the open challenges in the contemporary machine learning. It is especially prevalent in case of medical data, such as histopathological images. Traditional data-level approaches for dealing with data imbalance…

Machine Learning · Computer Science 2021-04-20 Michał Koziarski

A definitive diagnosis of a brain tumour is essential for enhancing treatment success and patient survival. However, it is difficult to manually evaluate multiple magnetic resonance imaging (MRI) images generated in a clinic. Therefore,…

Neural and Evolutionary Computing · Computer Science 2022-04-27 Amin Abdollahi Dehkordi , Mina Hashemi , Mehdi Neshat , Seyedali Mirjalili , Ali Safaa Sadiq

The rapid advancement of generative artificial intelligence has enabled the creation of synthetic images that are increasingly indistinguishable from authentic content, posing significant challenges for digital media integrity. This problem…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Jaime Álvarez Urueña , David Camacho , Javier Huertas Tato

Self-supervised learning methods have witnessed a recent surge of interest after proving successful in multiple application fields. In this work, we leverage these techniques, and we propose 3D versions for five different self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Aiham Taleb , Winfried Loetzsch , Noel Danz , Julius Severin , Thomas Gaertner , Benjamin Bergner , Christoph Lippert

Computer-aided diagnosis for low-dose computed tomography (CT) based on deep learning has recently attracted attention as a first-line automatic testing tool because of its high accuracy and low radiation exposure. However, existing methods…

Image and Video Processing · Electrical Eng. & Systems 2022-06-28 Kyung-Su Kim , Seong Je Oh , Ju Hwan Lee , Myung Jin Chung

In order to support the creation of reliable machine learning models for anomaly detection, this project focuses on preprocessing, enhancing, and organizing a medical imaging dataset. There are two classifications in the dataset: normal and…

Image and Video Processing · Electrical Eng. & Systems 2024-11-20 Dharanidharan S , Suhitha Renuka S , Ajishi Singh , Sheena Christabel Pravin

One of the most challenges in medical imaging is the lack of data and annotated data. It is proven that classical segmentation methods such as U-NET are useful but still limited due to the lack of annotated data. Using a weakly supervised…

Image and Video Processing · Electrical Eng. & Systems 2020-03-20 Amine Amyar , Romain Modzelewski , Pierre Vera , Vincent Morard , Su Ruan

Deep anomaly detection methods learn representations that separate between normal and anomalous images. Although self-supervised representation learning is commonly used, small dataset sizes limit its effectiveness. It was previously shown…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Tal Reiss , Yedid Hoshen

In the anomaly detection field, the scarcity of anomalous samples has directed the current research emphasis towards unsupervised anomaly detection. While these unsupervised anomaly detection methods offer convenience, they also overlook…

Information Retrieval · Computer Science 2023-11-15 Shunfeng Wang , Yueyang Li , Haichi Luo , Chenyang Bi

Background: Breast ultrasound is prominently used in diagnosing breast tumors. At present, many automatic systems based on deep learning have been developed to help radiologists in diagnosis. However, training such systems remains…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Yunxin Tang , Siyuan Tang , Jian Zhang , Hao Chen

This study presents a computer-aided diagnosis (CAD) system to assist early detection of lung metastases during endobronchial ultrasound (EBUS) procedures, significantly reducing follow-up time and enabling timely treatment. Due to limited…

Image and Video Processing · Electrical Eng. & Systems 2025-05-15 Ching-Kai Lin , Di-Chun Wei , Yun-Chien Cheng

Automated brain tumor segmentation based on deep learning (DL) has achieved promising performance. However, it generally relies on annotated images for model training, which is not always feasible in clinical settings. Therefore, the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-05 Xinru Zhang , Ni Ou , Chenghao Liu , Zhizheng Zhuo , Yaou Liu , Chuyang Ye