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This study introduces a novel unsupervised medical image feature extraction method that employs spatial stratification techniques. An objective function based on weight is proposed to achieve the purpose of fast image recognition. The…

Image and Video Processing · Electrical Eng. & Systems 2024-06-28 Qishi Zhan , Dan Sun , Erdi Gao , Yuhan Ma , Yaxin Liang , Haowei Yang

Assessing lesions and tracking their progression over time in brain magnetic resonance (MR) images is essential for diagnosing and monitoring multiple sclerosis (MS). Machine learning models have shown promise in automating the segmentation…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Berke Doga Basaran , Paul M. Matthews , Wenjia Bai

With the continuous improvement of the performance of object detectors via advanced model architectures, imbalance problems in the training process have received more attention. It is a common paradigm in object detection frameworks to…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Yihao Luo , Xiang Cao , Juntao Zhang , Peng Cheng , Tianjiang Wang , Qi Feng

Segmentation of both large and small white matter hyperintensities/lesions in brain MR images is a challenging task which has drawn much attention in recent years. We propose a multi-scale aggregation model framework to deal with…

Computer Vision and Pattern Recognition · Computer Science 2019-02-28 Hongwei Li , Jianguo Zhang , Mark Muehlau , Jan Kirschke , Bjoern Menze

Lesion detection from computed tomography (CT) scans is challenging compared to natural object detection because of two major reasons: small lesion size and small inter-class variation. Firstly, the lesions usually only occupy a small…

Computer Vision and Pattern Recognition · Computer Science 2019-07-10 Qingyi Tao , Zongyuan Ge , Jianfei Cai , Jianxiong Yin , Simon See

Early detection of melanoma is difficult for the human eye but a crucial step towards reducing its death rate. Computerized detection of these melanoma and other skin lesions is necessary. The central research question in this paper is "How…

Image and Video Processing · Electrical Eng. & Systems 2019-10-24 Beril Sirmacek , Max Kivits

Biomedical image segmentation plays a significant role in computer-aided diagnosis. However, existing CNN based methods rely heavily on massive manual annotations, which are very expensive and require huge human resources. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2023-01-13 Ruifei Zhang , Sishuo Liu , Yizhou Yu , Guanbin Li

Skin color has historically been a focal point of discrimination, yet fairness research in machine learning for medical imaging often relies on coarse subgroup categories, overlooking individual-level variations. Such group-based approaches…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Kuniko Paxton , Zeinab Dehghani , Koorosh Aslansefat , Dhavalkumar Thakker , Yiannis Papadopoulos

Image segmentation is critically important in almost all medical image analysis for automatic interpretations and processing. However, it is often challenging to perform image segmentation due to data imbalance between intra- and…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Zhhengyong Huang , Yao Sui

The task of medical image segmentation presents unique challenges, necessitating both localized and holistic semantic understanding to accurately delineate areas of interest, such as critical tissues or aberrant features. This complexity is…

Image and Video Processing · Electrical Eng. & Systems 2023-08-22 Pranav Singh , Luoyao Chen , Mei Chen , Jinqian Pan , Raviteja Chukkapalli , Shravan Chaudhari , Jacopo Cirrone

We propose a method to incorporate the intensity information of a target lesion on CT scans in training segmentation and detection networks. We first build an intensity-based lesion probability (ILP) function from an intensity histogram of…

Image and Video Processing · Electrical Eng. & Systems 2023-07-13 Seung Yeon Shin , Thomas C. Shen , Ronald M. Summers

Brain lesion volume measured on T2 weighted MRI images is a clinically important disease marker in multiple sclerosis (MS). Manual delineation of MS lesions is a time-consuming and highly operator-dependent task, which is influenced by…

Image and Video Processing · Electrical Eng. & Systems 2023-11-28 Hang Zhang , Jinwei Zhang , Qihao Zhang , Jeremy Kim , Shun Zhang , Susan A. Gauthier , Pascal Spincemaille , Thanh D. Nguyen , Mert R. Sabuncu , Yi Wang

Automating Multiple Sclerosis (MS) lesion segmentation would be of great benefit in initial diagnosis as well as monitoring disease progression. Deep learning based segmentation models perform well in many domains, but the state-of-the-art…

Image and Video Processing · Electrical Eng. & Systems 2024-10-28 Liviu Badea , Maria Popa

Assessment of lesions and their longitudinal progression from brain magnetic resonance (MR) images plays a crucial role in diagnosing and monitoring multiple sclerosis (MS). Machine learning models have demonstrated a great potential for…

Image and Video Processing · Electrical Eng. & Systems 2024-10-03 Berke Doga Basaran , Xinru Zhang , Paul M. Matthews , Wenjia Bai

Multiple sclerosis (MS) lesions occupy a small fraction of the brain volume, and are heterogeneous with regards to shape, size and locations, which poses a great challenge for training deep learning based segmentation models. We proposed a…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Hang Zhang , Jinwei Zhang , Rongguang Wang , Qihao Zhang , Susan A. Gauthier , Pascal Spincemaille , Thanh D. Nguyen , Yi Wang

Accurate identification and localization of anatomical structures of varying size and appearance in laparoscopic imaging are necessary to leverage the potential of computer vision techniques for surgical decision support. Segmentation…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Fiona R. Kolbinger , Jiangpeng He , Jinge Ma , Fengqing Zhu

Pancreatic cancer, characterized by its notable prevalence and mortality rates, demands accurate lesion delineation for effective diagnosis and therapeutic interventions. The generalizability of extant methods is frequently compromised due…

Image and Video Processing · Electrical Eng. & Systems 2025-05-06 Jun Li , Yijue Zhang , Haibo Shi , Minhong Li , Qiwei Li , Xiaohua Qian

Multiple sclerosis (MS) is a chronic inflammatory and degenerative disease of the central nervous system, characterized by the appearance of focal lesions in the white and gray matter that topographically correlate with an individual…

Computer Vision and Pattern Recognition · Computer Science 2022-01-31 Yang Ma , Chaoyi Zhang , Mariano Cabezas , Yang Song , Zihao Tang , Dongnan Liu , Weidong Cai , Michael Barnett , Chenyu Wang

Automated segmentation of multiple sclerosis (MS) lesions from MRI scans is important to quantify disease progression. In recent years, convolutional neural networks (CNNs) have shown top performance for this task when a large amount of…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Jiacheng Wang , Hao Li , Han Liu , Dewei Hu , Daiwei Lu , Keejin Yoon , Kelsey Barter , Francesca Bagnato , Ipek Oguz

Lung cancer and covid-19 have one of the highest morbidity and mortality rates in the world. For physicians, the identification of lesions is difficult in the early stages of the disease and time-consuming. Therefore, multi-task learning is…

Image and Video Processing · Electrical Eng. & Systems 2024-04-10 Weronika Hryniewska-Guzik , Maria Kędzierska , Przemysław Biecek