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Weakly supervised segmentation methods can delineate thyroid nodules in ultrasound images efficiently using training data with coarse labels, but suffer from: 1) low-confidence pseudo-labels that follow topological priors, introducing…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Jianning Chi , Zelan Li , Geng Lin , MingYang Sun , Xiaosheng Yu

Although existing medical image segmentation methods provide impressive pixel-wise accuracy, they often neglect topological correctness, making their segmentations unusable for many downstream tasks. One option is to retrain such models…

图像与视频处理 · 电气工程与系统科学 2024-09-17 Liu Li , Hanchun Wang , Matthew Baugh , Qiang Ma , Weitong Zhang , Cheng Ouyang , Daniel Rueckert , Bernhard Kainz

Medical image labels are often organized by taxonomies (e.g., organ - tissue - subtype), yet standard self-supervised learning (SSL) ignores this structure. We present a hierarchy-preserving contrastive framework that makes the label tree a…

定量方法 · 定量生物学 2025-11-07 Alif Elham Khan

T2-weighted magnetic resonance imaging (MRI) and diffusion-weighted imaging (DWI) are essential components for cervical cancer diagnosis. However, combining these channels for training deep learning models are challenging due to…

图像与视频处理 · 电气工程与系统科学 2023-06-21 Reza Kalantar , Sebastian Curcean , Jessica M Winfield , Gigin Lin , Christina Messiou , Matthew D Blackledge , Dow-Mu Koh

This study systematically investigates the impact of image enhancement techniques on Convolutional Neural Network (CNN)-based Brain Tumor Segmentation, focusing on Histogram Equalization (HE), Contrast Limited Adaptive Histogram…

图像与视频处理 · 电气工程与系统科学 2024-04-09 Shoffan Saifullah , Andri Pranolo , Rafał Dreżewski

Multimodal image registration between diffusion MRI (dMRI) and T1-weighted (T1w) MRI images is a critical step for aligning diffusion-weighted imaging (DWI) data with structural anatomical space. Traditional registration methods often…

图像与视频处理 · 电气工程与系统科学 2026-05-07 Xiaofan Wang , Junyi Wang , Yuqian Chen , Lauren J. O' Donnell , Fan Zhang

Glioblastoma is a highly aggressive and malignant brain tumor type that requires early diagnosis and prompt intervention. Due to its heterogeneity in appearance, developing automated detection approaches is challenging. To address this…

图像与视频处理 · 电气工程与系统科学 2024-12-31 Ziya Ata Yazıcı , İlkay Öksüz , Hazım Kemal Ekenel

Deep learning approaches to the segmentation of magnetic resonance images have shown significant promise in automating the quantitative analysis of brain images. However, a continuing challenge has been its sensitivity to the variability of…

图像与视频处理 · 电气工程与系统科学 2021-03-05 Dzung L. Pham , Yi-Yu Chou , Blake E. Dewey , Daniel S. Reich , John A. Butman , Snehashis Roy

Accurate synthesis of a full 3D MR image containing tumours from available MRI (e.g. to replace an image that is currently unavailable or corrupted) would provide a clinician as well as downstream inference methods with important…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Raghav Mehta , Tal Arbel

Multi-contrast magnetic resonance imaging is a significant and essential medical imaging technique.However, multi-contrast imaging has longer acquisition time and is easy to cause motion artifacts. In particular, the acquisition time for a…

图像与视频处理 · 电气工程与系统科学 2023-12-04 Yuxia Huang , Zhonghui Wu , Xiaoling Xu , Minghui Zhang , Shanshan Wang , Qiegen Liu

Achieving high-quality Magnetic Resonance Imaging (MRI) reconstruction at accelerated acquisition rates remains challenging due to the inherent ill-posed nature of the inverse problem. Traditional Compressed Sensing (CS) methods, while…

图像与视频处理 · 电气工程与系统科学 2024-11-05 Pierre-Antoine Comby , Benjamin Lapostolle , Matthieu Terris , Philippe Ciuciu

Blind pansharpening addresses the problem of generating a high spatial-resolution multi-spectral (HRMS) image given a low spatial-resolution multi-spectral (LRMS) image with the guidance of its associated spatially misaligned high…

计算机视觉与模式识别 · 计算机科学 2021-08-03 Lantao Yu , Dehong Liu , Hassan Mansour , Petros T. Boufounos

In the context of brain tumor characterization, we focused on two key questions: (a) stability of radiomics features to variability in multiregional segmentation masks obtained with fully-automatic deep segmentation methods and (b)…

图像与视频处理 · 电气工程与系统科学 2024-06-12 Maria Nadeem , Asma Shaheen , Muhammad F. A. Chaudhary , Hassan Mohy-ud-Din

Few-Shot Medical Image Segmentation (FSMIS) has been widely used to train a model that can perform segmentation from only a few annotated images. However, most existing prototype-based FSMIS methods generate multiple prototypes from the…

计算机视觉与模式识别 · 计算机科学 2025-05-29 Jianchao Jiang , Haofeng Zhang

Purpose: Visualization of subcortical gray matter is essential in neuroscience and clinical practice, particularly for disease understanding and surgical planning.While multi-inversion time (multi-TI) T$_1$-weighted (T$_1$-w) magnetic…

图像与视频处理 · 电气工程与系统科学 2025-12-09 Savannah P. Hays , Lianrui Zuo , Anqi Feng , Yihao Liu , Blake E. Dewey , Jiachen Zhuo , Ellen M. Mowry , Scott D. Newsome , Jerry L. Prince , Aaron Carass

Magnetic particle imaging (MPI) offers exceptional contrast for magnetic nanoparticles (MNP) at high spatio-temporal resolution. A common procedure in MPI starts with a calibration scan to measure the system matrix (SM), which is then used…

图像与视频处理 · 电气工程与系统科学 2022-11-04 Alper Güngör , Baris Askin , Damla Alptekin Soydan , Emine Ulku Saritas , Can Barış Top , Tolga Çukur

Panoramic image segmentation in computational pathology presents a remarkable challenge due to the morphologically complex and variably scaled anatomy. For instance, the intricate organization in kidney pathology spans multiple layers, from…

图像与视频处理 · 电气工程与系统科学 2024-07-02 Ruining Deng , Quan Liu , Can Cui , Tianyuan Yao , Juming Xiong , Shunxing Bao , Hao Li , Mengmeng Yin , Yu Wang , Shilin Zhao , Yucheng Tang , Haichun Yang , Yuankai Huo

Capturing global contextual information plays a critical role in breast ultrasound (BUS) image classification. Although convolutional neural networks (CNNs) have demonstrated reliable performance in tumor classification, they have inherent…

图像与视频处理 · 电气工程与系统科学 2023-08-07 Bryar Shareef , Min Xian , Aleksandar Vakanski , Haotian Wang

Head and neck tumors and metastatic lymph nodes are crucial for treatment planning and prognostic analysis. Accurate segmentation and quantitative analysis of these structures require pixel-level annotation, making automated segmentation…

图像与视频处理 · 电气工程与系统科学 2025-04-01 Litingyu Wang , Wenjun Liao , Shichuan Zhang , Guotai Wang

Accurate organ and lesion segmentation is a critical prerequisite for computer-aided diagnosis. Convolutional Neural Networks (CNNs), constrained by their local receptive fields, often struggle to capture complex global anatomical…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Haodong Chen , Xianfei Han , Qwen