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In this paper, we introduce an unsupervised cancer segmentation framework for histology images. The framework involves an effective contrastive learning scheme for extracting distinctive visual representations for segmentation. The encoder…

计算机视觉与模式识别 · 计算机科学 2022-06-20 Yilong Li , Yaqi Wang , Huiyu Zhou , Huaqiong Wang , Gangyong Jia , Qianni Zhang

Accurate visualization of liver tumors and their surrounding blood vessels is essential for noninvasive diagnosis and prognosis prediction of tumors. In medical image segmentation, there is still a lack of in-depth research on the…

图像与视频处理 · 电气工程与系统科学 2023-02-21 Haopeng Kuang , Dingkang Yang , Shunli Wang , Xiaoying Wang , Lihua Zhang

In this work, we propose a deep U-Net based model to tackle the challenging task of prostate cancer segmentation by aggressiveness in MRI based on weak scribble annotations. This model extends the size constraint loss proposed by Kervadec…

图像与视频处理 · 电气工程与系统科学 2022-07-13 Audrey Duran , Gaspard Dussert , Carole Lartizien

Self-supervised contrastive learning between pairs of multiple views of the same image has been shown to successfully leverage unlabeled data to produce meaningful visual representations for both natural and medical images. However, there…

图像与视频处理 · 电气工程与系统科学 2021-10-19 Yen Nhi Truong Vu , Richard Wang , Niranjan Balachandar , Can Liu , Andrew Y. Ng , Pranav Rajpurkar

Micro-ultrasound (micro-US) is a novel 29-MHz ultrasound technique that provides 3-4 times higher resolution than traditional ultrasound, potentially enabling low-cost, accurate diagnosis of prostate cancer. Accurate prostate segmentation…

Automatic segmentation of the prostate cancer from the multi-modal magnetic resonance images is of critical importance for the initial staging and prognosis of patients. However, how to use the multi-modal image features more efficiently is…

图像与视频处理 · 电气工程与系统科学 2020-11-10 Guokai Zhang , Xiaoang Shen , Ye Luo , Jihao Luo , Zeju Wang , Weigang Wang , Binghui Zhao , Jianwei Lu

The accurate estimation of predictive uncertainty carries importance in medical scenarios such as lung node segmentation. Unfortunately, most existing works on predictive uncertainty do not return calibrated uncertainty estimates, which…

机器学习 · 计算机科学 2022-05-31 Shi Hu , Daniel Worrall , Stefan Knegt , Bas Veeling , Henkjan Huisman , Max Welling

Prostate cancer is the second leading cause of cancer death among men in the United States. The diagnosis of prostate MRI often relies on the accurate prostate zonal segmentation. However, state-of-the-art automatic segmentation methods…

图像与视频处理 · 电气工程与系统科学 2022-06-20 Alex Ling Yu Hung , Haoxin Zheng , Qi Miao , Steven S. Raman , Demetri Terzopoulos , Kyunghyun Sung

Tumor volume segmentation on MRI is a challenging and time-consuming process that is performed manually in typical clinical settings. This work presents an approach to automated delineation of head and neck tumors on MRI scans, developed in…

图像与视频处理 · 电气工程与系统科学 2025-01-10 Andrei Iantsen

Data augmentation refers to a group of techniques whose goal is to battle limited amount of available data to improve model generalization and push sample distribution toward the true distribution. While different augmentation strategies…

定量方法 · 定量生物学 2020-06-03 Ruqian Hao , Khashayar Namdar , Lin Liu , Masoom A. Haider , Farzad Khalvati

Automatic prostate segmentation in TRUS images has always been a challenging problem, since prostates in TRUS images have ambiguous boundaries and inhomogeneous intensity distribution. Although many prostate segmentation methods have been…

图像与视频处理 · 电气工程与系统科学 2023-11-08 Mengqing Liu , Xiao Shao , Liping Jiang , Kaizhi Wu

Magnetic Resonance Imaging (MRI) plays an important role in identifying clinically significant prostate cancer (csPCa), yet automated methods face challenges such as data imbalance, variable tumor sizes, and a lack of annotated data. This…

计算机视觉与模式识别 · 计算机科学 2025-05-01 Alessia Hu , Regina Beets-Tan , Lishan Cai , Eduardo Pooch

Non-contrast computed tomography (NCCT) is commonly acquired for lung cancer screening, assessment of general abdominal pain or suspected renal stones, trauma evaluation, and many other indications. However, the absence of contrast limits…

图像与视频处理 · 电气工程与系统科学 2022-05-13 Ho Hin Lee , Yucheng Tang , Riqiang Gao , Qi Yang , Xin Yu , Shunxing Bao , James G. Terry , J. Jeffrey Carr , Yuankai Huo , Bennett A. Landman

Mammography, an X-ray-based imaging technique, remains central to the early detection of breast cancer. Recent advances in artificial intelligence have enabled increasingly sophisticated computer-aided diagnostic methods, evolving from…

图像与视频处理 · 电气工程与系统科学 2025-10-09 Daniel G. P. Petrini , Hae Yong Kim

Medical image segmentation has been widely recognized as a pivot procedure for clinical diagnosis, analysis, and treatment planning. However, the laborious and expensive annotation process lags down the speed of further advances.…

计算机视觉与模式识别 · 计算机科学 2022-05-02 Zhuowei Li , Zihao Liu , Zhiqiang Hu , Qing Xia , Ruiqin Xiong , Shaoting Zhang , Dimitris Metaxas , Tingting Jiang

Large-scale datasets are important for the development of deep learning models. Such datasets usually require a heavy workload of annotations, which are extremely time-consuming and expensive. To accelerate the annotation procedure,…

机器学习 · 计算机科学 2024-03-13 Xiaoqian Ruan , Gaoang Wang

Unsupervised anomaly detection (UAD) presents a complementary alternative to supervised learning for brain tumor segmentation in magnetic resonance imaging (MRI), particularly when annotated datasets are limited, costly, or inconsistent. In…

计算机视觉与模式识别 · 计算机科学 2025-10-20 Gerard Comas-Quiles , Carles Garcia-Cabrera , Julia Dietlmeier , Noel E. O'Connor , Ferran Marques

Purpose: As visual inspection is an inherent process during radiological screening, the associated eye gaze data can provide valuable insights into relevant clinical decisions. As deep learning has become the state-of-the-art for…

图像与视频处理 · 电气工程与系统科学 2025-02-18 Zirui Qiu , Hassan Rivaz , Yiming Xiao

Accurate segmentation is a crucial step in medical image analysis and applying supervised machine learning to segment the organs or lesions has been substantiated effective. However, it is costly to perform data annotation that provides…

计算机视觉与模式识别 · 计算机科学 2021-10-29 Yunxiang Li , Jingxiong Li , Ruilong Dan , Shuai Wang , Kai Jin , Guodong Zeng , Jun Wang , Xiangji Pan , Qianni Zhang , Huiyu Zhou , Qun Jin , Li Wang , Yaqi Wang

It is a challenge to segment the location and size of rectal cancer tumours through deep learning. In this paper, in order to improve the ability of extracting suffi-cient feature information in rectal tumour segmentation, attention…

图像与视频处理 · 电气工程与系统科学 2022-10-28 Hongwei Wu , Junlin Wang , Xin Wang , Hui Nan , Yaxin Wang , Haonan Jing , Kaixuan Shi