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Fluorescence microscopy has enabled a dramatic development in modern biology by visualizing biological organisms with micrometer scale resolution. However, due to the diffraction limit, sub-micron/nanometer features are difficult to…

图像与视频处理 · 电气工程与系统科学 2021-03-10 Varun Mannam , Yide Zhang , Xiaotong Yuan , Scott Howard

Fluorescence microscopy is essential to study biological structures and dynamics. However, existing systems suffer from a tradeoff between field-of-view (FOV), resolution, and complexity, and thus cannot fulfill the emerging need of…

光学 · 物理学 2022-09-09 Yujia Xue , Qianwan Yang , Guorong Hu , Kehan Guo , Lei Tian

Fourier ptychography is a recently developed imaging approach for large field-of-view and high-resolution microscopy. Here we model the Fourier ptychographic forward imaging process using a convolution neural network (CNN) and recover the…

计算机视觉与模式识别 · 计算机科学 2018-03-12 Shaowei Jiang , Kaikai Guo , Jun Liao , Guoan Zheng

Fourier ptychography is a recently explored imaging method for overcoming the diffraction limit of conventional cameras with applications in microscopy and yielding high-resolution images. In order to splice together low-resolution images…

图像与视频处理 · 电气工程与系统科学 2020-03-18 Yican Chen , Zhi Luo , Xia Wu , Huidong Yang , Bo Huang

Differentiable simulations of optical systems can be combined with deep learning-based reconstruction networks to enable high performance computational imaging via end-to-end (E2E) optimization of both the optical encoder and the deep…

图像与视频处理 · 电气工程与系统科学 2022-11-04 Diptodip Deb , Zhenfei Jiao , Ruth Sims , Alex B. Chen , Michael Broxton , Misha B. Ahrens , Kaspar Podgorski , Srinivas C. Turaga

We introduce a vortex phase transform with a lenslet-array to accompany shallow, dense, ``small-brain'' neural networks for high-speed and low-light imaging. Our single-shot ptychographic approach exploits the coherent diffraction, compact…

图像与视频处理 · 电气工程与系统科学 2025-07-01 Baurzhan Muminov , Luat T. Vuong

We propose a novel framework for representing neural fields on triangle meshes that is multi-resolution across both spatial and frequency domains. Inspired by the Neural Fourier Filter Bank (NFFB), our architecture decomposes the spatial…

计算机视觉与模式识别 · 计算机科学 2025-07-22 Avigail Cohen Rimon , Tal Shnitzer , Mirela Ben Chen

Single-shot volumetric fluorescence (SVF) imaging offers a significant advantage over traditional imaging methods that require scanning across multiple axial planes as it can capture biological processes with high temporal resolution. The…

Deep complex-valued neural networks (CVNNs) provide a powerful way to leverage complex number operations and representations and have succeeded in several phase-based applications. However, previous networks have not fully explored the…

图像与视频处理 · 电气工程与系统科学 2025-03-06 Yanting Yang , Yiren Zhang , Zongyu Li , Jeffery Siyuan Tian , Matthieu Dagommer , Jia Guo

Recent work showed neural-network-based approaches to reconstructing images from compressively sensed measurements offer significant improvements in accuracy and signal compression. Such methods can dramatically boost the capability of…

图像与视频处理 · 电气工程与系统科学 2020-04-29 Fangliang Bai , Jinchao Liu , Xiaojuan Liu , Margarita Osadchy , Chao Wang , Stuart J. Gibson

Face Super-Resolution (FSR) aims to recover high-resolution (HR) face images from low-resolution (LR) ones. Despite the progress made by convolutional neural networks in FSR, the results of existing approaches are not ideal due to their low…

计算机视觉与模式识别 · 计算机科学 2024-06-25 Hao Liu , Yang Yang , Yunxia Liu

Low-light image enhancement is a classical computer vision problem aiming to recover normal-exposure images from low-light images. However, convolutional neural networks commonly used in this field are good at sampling low-frequency local…

计算机视觉与模式识别 · 计算机科学 2022-09-19 Yunliang Zhuang , Zhuoran Zheng , Chen Lyu

Deep learning methods have witnessed the great progress in image restoration with specific metrics (e.g., PSNR, SSIM). However, the perceptual quality of the restored image is relatively subjective, and it is necessary for users to control…

计算机视觉与模式识别 · 计算机科学 2019-08-21 Wei Wang , Ruiming Guo , Yapeng Tian , Wenming Yang

Magnetic Resonance Imaging (MRI) is an important medical imaging modality, while it requires a long acquisition time. To reduce the acquisition time, various methods have been proposed. However, these methods failed to reconstruct images…

图像与视频处理 · 电气工程与系统科学 2021-12-01 Qiaosi Yi , Jinhao Liu , Le Hu , Faming Fang , Guixu Zhang

Object segmentation and structure localization are important steps in automated image analysis pipelines for microscopy images. We present a convolution neural network (CNN) based deep learning architecture for segmentation of objects in…

计算机视觉与模式识别 · 计算机科学 2019-01-24 Shan E Ahmed Raza , Linda Cheung , Muhammad Shaban , Simon Graham , David Epstein , Stella Pelengaris , Michael Khan , Nasir M. Rajpoot

Convolutional neural networks (CNNs) have gained tremendous success in solving complex inverse problems. The aim of this work is to develop a novel CNN framework to reconstruct video sequence of dynamic live cells captured using a…

计算机视觉与模式识别 · 计算机科学 2020-10-29 Thanh Nguyen , Yujia Xue , Yunzhe Li , Lei Tian , George Nehmetallah

Fourier ptychography microscopy(FP) is a recently developed computational imaging approach for microscopic super-resolution imaging. By turning on each light-emitting-diode (LED) located on different position on the LED array sequentially…

光学 · 物理学 2022-02-22 Delong Yang , Shaohui Zhang , Chuanjian Zheng , Guocheng Zhou , Lei Cao , Yao Hu , Qun Hao

Tapered optical fibers (TFs), with diameters gradually reduced from hundreds of microns to the micron scale, offer key advantages over conventional flat optical fibers (FFs), including uniform illumination, efficient long-range signal…

光学 · 物理学 2026-02-03 Mingliang Xu , Fangyuan Li , Yuxin Leng , Ruxin Li , Fei He

Partial scan is a common approach to accelerate Magnetic Resonance Imaging (MRI) data acquisition in both 2D and 3D settings. However, accurately reconstructing images from partial scan data (i.e., incomplete k-space matrices) remains…

图像与视频处理 · 电气工程与系统科学 2023-06-06 Xiaohan Liu , Yanwei Pang , Xuebin Sun , Yiming Liu , Yonghong Hou , Zhenchang Wang , Xuelong Li

Deep Learning-based Computer Vision field has recently been trying to explore larger kernels for convolution to effectively scale up Convolutional Neural Networks. Simultaneously, new paradigm of models such as Vision Transformers find it…

计算机视觉与模式识别 · 计算机科学 2023-02-24 Siddharth Agrawal
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