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相关论文: FrequencyCT: Frequency Domain Self-supervised Low-…

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Deep learning (DL) has made significant advancements in tomographic imaging, particularly in low-dose computed tomography (LDCT) denoising. A recent trend involves servers training powerful models with large amounts of self-collected…

密码学与安全 · 计算机科学 2023-10-16 Ziyuan Yang , Huijie Huangfu , Maosong Ran , Zhiwen Wang , Hui Yu , Yi Zhang

Source-Free Domain Adaptation (SFDA) enables domain adaptation for semantic segmentation of Remote Sensing Images (RSIs) using only a well-trained source model and unlabeled target domain data. However, the lack of ground-truth labels in…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Bin Wang , Fei Deng , Zeyu Chen , Zhicheng Yu , Yiguang Liu

Low-dose computed tomography (CT) images suffer from noise and artifacts due to photon starvation and electronic noise. Recently, some works have attempted to use diffusion models to address the over-smoothness and training instability…

图像与视频处理 · 电气工程与系统科学 2024-01-10 Qi Gao , Zilong Li , Junping Zhang , Yi Zhang , Hongming Shan

Few-shot semantic segmentation (FSS) offers immense potential in the field of medical image analysis, enabling accurate object segmentation with limited training data. However, existing FSS techniques heavily rely on annotated semantic…

计算机视觉与模式识别 · 计算机科学 2023-07-28 Sanaz Karimijafarbigloo , Reza Azad , Dorit Merhof

The Poisson Flow Consistency Model (PFCM) is a consistency-style model based on the robust Poisson Flow Generative Model++ (PFGM++) which has achieved success in unconditional image generation and CT image denoising. Yet the PFCM can only…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Anthony Zhang , Mahmut Gokmen , Dennis Hein , Rongjun Ge , Wenjun Xia , Ge Wang , Jin Chen

We propose a new framework for manifold denoising based on processing in the graph Fourier frequency domain, derived from the spectral decomposition of the discrete graph Laplacian. Our approach uses the Spectral Graph Wavelet transform in…

机器学习 · 计算机科学 2016-11-30 Shay Deutsch , Antonio Ortega , Gerard Medioni

Recent studies show strong generative performance in domain translation especially by using transfer learning techniques on the unconditional generator. However, the control between different domain features using a single model is still…

计算机视觉与模式识别 · 计算机科学 2023-03-22 Dongyeun Lee , Jae Young Lee , Doyeon Kim , Jaehyun Choi , Jaejun Yoo , Junmo Kim

Deep learning is a very promising technique for low-dose computed tomography (LDCT) image denoising. However, traditional deep learning methods require paired noisy and clean datasets, which are often difficult to obtain. This paper…

图像与视频处理 · 电气工程与系统科学 2023-08-15 Yuting Zhu , Qiang He , Yudong Yao , Yueyang Teng

Supervised neural networks are known to achieve excellent results in various image restoration tasks. However, such training requires datasets composed of pairs of corrupted images and their corresponding ground truth targets.…

计算机视觉与模式识别 · 计算机科学 2022-11-21 Gregory Vaksman , Michael Elad

Limited labeled data hinder the application of deep learning in medical domain. In clinical practice, there are sufficient unlabeled data that are not effectively used, and semi-supervised learning (SSL) is a promising way for leveraging…

计算机视觉与模式识别 · 计算机科学 2024-05-28 Along He , Tao Li , Yanlin Wu , Ke Zou , Huazhu Fu

Multispectral computed tomography (CT) enables advanced material characterization by acquiring energy-resolved projection data. However, since the incoming X-ray flux is be distributed across multiple narrow energy bins, the photon count…

Reducing radiation doses benefits patients, however, the resultant low-dose computed tomography (LDCT) images often suffer from clinically unacceptable noise and artifacts. While deep learning (DL) shows promise in LDCT reconstruction, it…

图像与视频处理 · 电气工程与系统科学 2025-03-04 Ziyuan Yang , Yingyu Chen , Zhiwen Wang , Hongming Shan , Yang Chen , Yi Zhang

In coronary CT angiography, a series of CT images are taken at different levels of radiation dose during the examination. Although this reduces the total radiation dose, the image quality during the low-dose phases is significantly…

计算机视觉与模式识别 · 计算机科学 2019-03-06 Eunhee Kang , Hyun Jung Koo , Dong Hyun Yang , Joon Bum Seo , Jong Chul Ye

Optical coherence tomography (OCT) is a prevalent non-invasive imaging method which provides high resolution volumetric visualization of retina. However, its inherent defect, the speckle noise, can seriously deteriorate the tissue…

计算机视觉与模式识别 · 计算机科学 2022-01-31 Dewei Hu , Yuankai K. Tao , Ipek Oguz

This research addresses the challenge of developing a universal deepfake detector that can effectively identify unseen deepfake images despite limited training data. Existing frequency-based paradigms have relied on frequency-level…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Chuangchuang Tan , Yao Zhao , Shikui Wei , Guanghua Gu , Ping Liu , Yunchao Wei

Many microscopy applications are limited by the total amount of usable light and are consequently challenged by the resulting levels of noise in the acquired images. This problem is often addressed via (supervised) deep learning based…

图像与视频处理 · 电气工程与系统科学 2020-08-20 Anna S. Goncharova , Alf Honigmann , Florian Jug , Alexander Krull

Despite the progress in cross-domain few-shot learning, a model pre-trained with DINO combined with a prototypical classifier outperforms the latest SOTA methods. A crucial limitation that needs to be overcome is that updating too many…

计算机视觉与模式识别 · 计算机科学 2025-11-19 Naeem Paeedeh , Mahardhika Pratama , Imam Mustafa Kamal , Wolfgang Mayer , Jimmy Cao , Ryszard Kowlczyk

This paper proposes a low-cost and highly accurate ECG-monitoring system intended for personalized early arrhythmia detection for wearable mobile sensors. Earlier supervised approaches for personalized ECG monitoring require both abnormal…

机器学习 · 计算机科学 2024-08-23 Mehmet Yamaç , Mert Duman , İlke Adalıoğlu , Serkan Kiranyaz , Moncef Gabbouj

Computed tomography (CT) is one of the modalities for effective lung cancer screening, diagnosis, treatment, and prognosis. The features extracted from CT images are now used to quantify spatial and temporal variations in tumors. However,…

图像与视频处理 · 电气工程与系统科学 2023-03-28 Md Selim , Jie Zhang , Michael A. Brooks , Ge Wang , Jin Chen

Sparse-view computed tomography (CT) is a promising solution for expediting the scanning process and mitigating radiation exposure to patients, the reconstructed images, however, contain severe streak artifacts, compromising subsequent…

图像与视频处理 · 电气工程与系统科学 2023-10-03 Chenglong Ma , Zilong Li , Junping Zhang , Yi Zhang , Hongming Shan