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Deep learning has significantly advanced PET image re-construction, achieving remarkable improvements in image quality through direct training on sinogram or image data. Traditional methods often utilize masks for inpainting tasks, but…

计算机视觉与模式识别 · 计算机科学 2025-03-12 Bin Huang , Binzhong He , Yanhan Chen , Zhili Liu , Xinyue Wang , Binxuan Li , Qiegen Liu

Positron emission tomography (PET) is a widely recognized technique for diagnosing neurodegenerative diseases, offering critical functional insights. However, its high costs and radiation exposure hinder its widespread use. In contrast,…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Yitong Li , Igor Yakushev , Dennis M. Hedderich , Christian Wachinger

Exploiting pre-trained diffusion models for restoration has recently become a favored alternative to the traditional task-specific training approach. Previous works have achieved noteworthy success by limiting the solution space using…

计算机视觉与模式识别 · 计算机科学 2023-09-20 Peiqing Yang , Shangchen Zhou , Qingyi Tao , Chen Change Loy

Multimodal medical image fusion (MMIF) aims to integrate images from different modalities to produce a comprehensive image that enhances medical diagnosis by accurately depicting organ structures, tissue textures, and metabolic information.…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Tao Luo , Weihua Xu

Positron Emission Tomography (PET) image reconstruction is inherently challenged by Poisson noise and physical degradation factors, which are further exacerbated in limited-angle acquisitions. While deep learning methods demonstrate…

计算机视觉与模式识别 · 计算机科学 2026-05-11 Rüveyda Yilmaz , Yuli Wu , Johannes Stegmaier , Volkmar Schulz

Multimodal medical image fusion plays an instrumental role in several areas of medical image processing, particularly in disease recognition and tumor detection. Traditional fusion methods tend to process each modality independently before…

图像与视频处理 · 电气工程与系统科学 2023-10-11 Lin Liu , Xinxin Fan , Chulong Zhang , Jingjing Dai , Yaoqin Xie , Xiaokun Liang

Diffusion models have shown remarkable flexibility for solving inverse problems without task-specific retraining. However, existing approaches such as Manifold Preserving Guided Diffusion (MPGD) apply only a single gradient update per…

计算机视觉与模式识别 · 计算机科学 2025-06-10 Aditya Chakravarty

Lensless fiber endomicroscope is an emerging tool for in-vivo microscopic imaging, where quantitative phase imaging (QPI) can be utilized as a label-free method to enhance image contrast. However, existing single-shot phase reconstruction…

光学 · 物理学 2025-04-01 Zhaoqing Chen , Jiawei Sun , Xibin Yang , Xinyi Ye , Bin Zhao , Xuelong Li , Juergen Czarske

Existing multi-modal image fusion methods fail to address the compound degradations presented in source images, resulting in fusion images plagued by noise, color bias, improper exposure, \textit{etc}. Additionally, these methods often…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Hao Zhang , Lei Cao , Jiayi Ma

The integration of multimodal medical imaging can provide complementary and comprehensive information for the diagnosis of Alzheimer's disease (AD). However, in clinical practice, since positron emission tomography (PET) is often missing,…

计算工程、金融与科学 · 计算机科学 2024-12-03 Fuyou Mao , Lixin Lin , Ming Jiang , Dong Dai , Chao Yang , Hao Zhang , Yan Tang

Multi-modality image fusion (MMIF) aims to integrate complementary information from different modalities into a single fused image to represent the imaging scene and facilitate downstream visual tasks comprehensively. In recent years,…

计算机视觉与模式识别 · 计算机科学 2024-04-15 Zhe Li , Haiwei Pan , Kejia Zhang , Yuhua Wang , Fengming Yu

Spectral computed tomography (CT) with photon-counting detectors holds immense potential for material discrimination and tissue characterization. However, under ultra-low-dose conditions, the sharply degraded signal-to-noise ratio (SNR) in…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Peng Peng , Xinrui Zhang , Junlin Wang , Lei Li , Shaoyu Wang , Qiegen Liu

The analysis of multi-modality positron emission tomography and computed tomography (PET-CT) images for computer aided diagnosis applications requires combining the sensitivity of PET to detect abnormal regions with anatomical localization…

计算机视觉与模式识别 · 计算机科学 2019-10-29 Ashnil Kumar , Michael Fulham , Dagan Feng , Jinman Kim

During the process of computed tomography (CT), metallic implants often cause disruptive artifacts in the reconstructed images, impeding accurate diagnosis. Several supervised deep learning-based approaches have been proposed for reducing…

图像与视频处理 · 电气工程与系统科学 2024-01-08 Xuan Liu , Yaoqin Xie , Songhui Diao , Shan Tan , Xiaokun Liang

Low-dose Positron Emission Tomography (PET) imaging presents a significant challenge due to increased noise and reduced image quality, which can compromise its diagnostic accuracy and clinical utility. Denoising diffusion probabilistic…

图像与视频处理 · 电气工程与系统科学 2025-03-03 Boxiao Yu , Savas Ozdemir , Jiong Wu , Yizhou Chen , Ruogu Fang , Kuangyu Shi , Kuang Gong

Deep MRI reconstruction is commonly performed with conditional models that de-alias undersampled acquisitions to recover images consistent with fully-sampled data. Since conditional models are trained with knowledge of the imaging operator,…

图像与视频处理 · 电气工程与系统科学 2023-09-19 Alper Güngör , Salman UH Dar , Şaban Öztürk , Yilmaz Korkmaz , Gokberk Elmas , Muzaffer Özbey , Tolga Çukur

Diffusion models have achieved impressive performance on multi-focus image fusion (MFIF). However, a key challenge in applying diffusion models to the ill-posed MFIF problem is that defocus blur can make common symmetric geometric…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Bo Li , Tingting Bao , Lingling Zhang , Weiping Fu , Yaxian Wang , Jun Liu

Traditional and deep learning-based fusion methods generated the intermediate decision map to obtain the fusion image through a series of post-processing procedures. However, the fusion results generated by these methods are easy to lose…

计算机视觉与模式识别 · 计算机科学 2021-04-21 Yongsheng Zang , Dongming Zhou , Changcheng Wang , Rencan Nie , Yanbu Guo

In this paper, we propose a novel training strategy called SupFusion, which provides an auxiliary feature level supervision for effective LiDAR-Camera fusion and significantly boosts detection performance. Our strategy involves a data…

计算机视觉与模式识别 · 计算机科学 2023-11-01 Yiran Qin , Chaoqun Wang , Zijian Kang , Ningning Ma , Zhen Li , Ruimao Zhang

Fiber orientation distributions (FODs) is a popular model to represent the diffusion MRI (dMRI) data. However, imaging artifacts such as susceptibility-induced distortion in dMRI can cause signal loss and lead to the corrupted…

图像与视频处理 · 电气工程与系统科学 2024-06-21 Shuo Huang , Lujia Zhong , Yonggang Shi