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This research presents a novel framework for the compression and decompression of medical images utilizing the Latent Diffusion Model (LDM). The LDM represents advancement over the denoising diffusion probabilistic model (DDPM) with a…

图像与视频处理 · 电气工程与系统科学 2023-10-10 InChan Hwang , MinJae Woo

Advancements in AI for medical imaging offer significant potential. However, their applications are constrained by the limited availability of data and the reluctance of medical centers to share it due to patient privacy concerns.…

Purpose: We proposed a deep convolutional neural network (CNN), named Retinal Fluid Segmentation Network (ReF-Net) to segment volumetric retinal fluid on optical coherence tomography (OCT) volume. Methods: 3 x 3-mm OCT scans were acquired…

图像与视频处理 · 电气工程与系统科学 2020-10-28 Yukun Guo , Tristan T. Hormel , Honglian Xiong , Jie Wang , Thomas S. Hwang , Yali Jia

In this study we develop dimension-reduction techniques to accelerate diffusion model inference in the context of synthetic data generation. The idea is to integrate compressed sensing into diffusion models (hence, CSDM): First, compress…

机器学习 · 统计学 2025-09-30 Zhengyi Guo , Jiatu Li , Wenpin Tang , David D. Yao

Existing latent diffusion models typically couple scale with content complexity, using more latent tokens to represent higher-resolution images or higher-frame rate videos. However, the latent capacity required to represent visual data…

计算机视觉与模式识别 · 计算机科学 2025-11-21 Tianxiong Zhong , Xingye Tian , Xuebo Wang , Boyuan Jiang , Xin Tao , Pengfei Wan

Optical coherence tomography (OCT) is used for non-invasive diagnosis of diabetic macular edema assessing the retinal layers. In this paper, we propose a new fully convolutional deep architecture, termed ReLayNet, for end-to-end…

计算机视觉与模式识别 · 计算机科学 2017-07-10 Abhijit Guha Roy , Sailesh Conjeti , Sri Phani Krishna Karri , Debdoot Sheet , Amin Katouzian , Christian Wachinger , Nassir Navab

Retinal optical coherence tomography (OCT) images provide crucial insights into the health of the posterior ocular segment. Therefore, the advancement of automated image analysis methods is imperative to equip clinicians and researchers…

图像与视频处理 · 电气工程与系统科学 2024-02-16 Jiahao Wang , Hong Peng , Shengchao Chen , Sufen Ren

Lung cancer has been one of the leading causes of cancer-related deaths worldwide for years. With the emergence of deep learning, computer-assisted diagnosis (CAD) models based on learning algorithms can accelerate the nodule screening…

图像与视频处理 · 电气工程与系统科学 2023-05-03 Xuan Zhao , Benjamin Hou

Acousto-optical coherence tomography (AOCT) consists in using random phase jumps on ultrasound and light to achieve a millimeter resolution when imaging thick scattering media. We combined this technique with heterodyne off-axis digital…

光学 · 物理学 2012-10-12 Michel Gross , François Ramaz , Emilie Benoit , Emmanuel Bossy , Salma Farahi

This paper introduces an innovative methodology for producing high-quality 3D lung CT images guided by textual information. While diffusion-based generative models are increasingly used in medical imaging, current state-of-the-art…

图像与视频处理 · 电气工程与系统科学 2024-10-16 Yanwu Xu , Li Sun , Wei Peng , Shuyue Jia , Katelyn Morrison , Adam Perer , Afrooz Zandifar , Shyam Visweswaran , Motahhare Eslami , Kayhan Batmanghelich

Distilling latent diffusion models (LDMs) into ones that are fast to sample from is attracting growing research interest. However, the majority of existing methods face two critical challenges: (1) They hinge on long training using a huge…

计算机视觉与模式识别 · 计算机科学 2024-11-08 Qingsong Xie , Zhenyi Liao , Zhijie Deng , Chen chen , Haonan Lu

Optical Coherence Tomography (OCT) is an emerging medical imaging modality for luminal organ diagnosis. The non-constant rotation speed of optical components in the OCT catheter tip causes rotational distortion in OCT volumetric scanning.…

Optical coherence tomography (OCT) is capable of non-destructively obtaining cross-sectional information of samples with micrometer spatial resolution, which plays an important role in ophthalmology and endovascular medicine. Measuring OCT…

医学物理 · 物理学 2023-11-30 Yang Jianlong , Zhang Haoran , Liu Chang , Gu Chengfu

Computational corrections of defocus and aberrations in optical coherence tomography (OCT) offers a promising approach to realize high-resolution imaging with deep imaging depth, but without additional high hardware costs. However, these…

光学 · 物理学 2025-10-28 Shuichi Makita , Naoki Fukutake , Lida Zhu , Yoshiaki Yasuno

Vision-based 3D occupancy prediction is significantly challenged by the inherent limitations of monocular vision in depth estimation. This paper introduces CVT-Occ, a novel approach that leverages temporal fusion through the geometric…

计算机视觉与模式识别 · 计算机科学 2024-09-26 Zhangchen Ye , Tao Jiang , Chenfeng Xu , Yiming Li , Hang Zhao

Cross-modality medical image synthesis is a critical topic and has the potential to facilitate numerous applications in the medical imaging field. Despite recent successes in deep-learning-based generative models, most current medical image…

图像与视频处理 · 电气工程与系统科学 2023-07-20 Lingting Zhu , Zeyue Xue , Zhenchao Jin , Xian Liu , Jingzhen He , Ziwei Liu , Lequan Yu

Latent diffusion models (LDMs) have recently achieved strong performance in 3D medical image synthesis. However, modalities like cine cardiac MRI (CMR), representing a temporally synchronized 3D volume across the cardiac cycle, add an…

MRI synthesis promises to mitigate the challenge of missing MRI modality in clinical practice. Diffusion model has emerged as an effective technique for image synthesis by modelling complex and variable data distributions. However, most…

图像与视频处理 · 电气工程与系统科学 2023-03-27 Lan Jiang , Ye Mao , Xi Chen , Xiangfeng Wang , Chao Li

Latent variable generative models have emerged as powerful tools for generative tasks including image and video synthesis. These models are enabled by pretrained autoencoders that map high resolution data into a compressed lower dimensional…

计算机视觉与模式识别 · 计算机科学 2025-06-13 Mohammed Suhail , Carlos Esteves , Leonid Sigal , Ameesh Makadia

We introduce a new algorithm to solve a regularized spatial-spectral image estimation problem. Our approach is based on the linearized alternating directions method of multipliers (LADMM), which is a variation of the popular ADMM algorithm.…

信号处理 · 电气工程与系统科学 2025-02-25 Yunsong Liu , Debdut Mandal , Congyu Liao , Kawin Setsompop , Justin P. Haldar