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Many applications and algorithms in the field of gravitational lensing make use of meshes with a finite number of nodes to analyze and manipulate data. Specific examples in lensing are astronomical CCD images in general, the reconstruction…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-15 Julian Merten

The application of the non conventional imaging technique LOFI (Laser Optical Feedback Imaging) to coherent microscopy is presented. This simple and efficient technique using frequency-shifted optical feedback needs the sample to be scanned…

Image restoration aims to recover high-quality images from their corrupted counterparts. Many existing methods primarily focus on the spatial domain, neglecting the understanding of frequency variations and ignoring the impact of implicit…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Hu Gao , Depeng Dang

Deep learning has transformed computational imaging, but traditional pixel-based representations limit their ability to capture continuous, multiscale details of objects. Here we introduce a novel Local Conditional Neural Fields (LCNF)…

Image and Video Processing · Electrical Eng. & Systems 2023-07-25 Hao Wang , Jiabei Zhu , Yunzhe Li , QianWan Yang , Lei Tian

This paper newly introduces multi-modality loss function for GAN-based super-resolution that can maintain image structure and intensity on unpaired training dataset of clinical CT and micro CT volumes. Precise non-invasive diagnosis of lung…

Image and Video Processing · Electrical Eng. & Systems 2020-04-08 Tong Zheng , Hirohisa Oda , Takayasu Moriya , Shota Nakamura , Masahiro Oda , Masaki Mori , Horitsugu Takabatake , Hiroshi Natori , Kensaku Mori

Light field microscopy (LFM) has gained significant attention due to its ability to capture snapshot-based, large-scale 3D fluorescence images. However, existing LFM reconstruction algorithms are highly sensitive to sensor noise or require…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Jiayin Zhao , Zhenqi Fu , Tao Yu , Hui Qiao

Light field photography has been studied thoroughly in recent years. One of its drawbacks is the need for multi-lens in the imaging. To compensate that, compressed light field photography has been proposed to tackle the trade-offs between…

Computer Vision and Pattern Recognition · Computer Science 2019-02-22 Ofir Nabati , David Mendlovic , Raja Giryes

Generative Adversarial Networks (GANs) have proved as a powerful framework for denoising applications in medical imaging. However, GAN-based denoising algorithms still suffer from limitations in capturing complex relationships within the…

Image and Video Processing · Electrical Eng. & Systems 2026-02-16 Francesco Di Feola , Lorenzo Tronchin , Valerio Guarrasi , Paolo Soda

High fidelity segmentation of both macro and microvascular structure of the retina plays a pivotal role in determining degenerative retinal diseases, yet it is a difficult problem. Due to successive resolution loss in the encoding phase…

Image and Video Processing · Electrical Eng. & Systems 2021-10-20 Sharif Amit Kamran , Khondker Fariha Hossain , Alireza Tavakkoli , Stewart Lee Zuckerbrod , Kenton M. Sanders , Salah A. Baker

Fast and accurate reconstruction of magnetic resonance (MR) images from under-sampled data is important in many clinical applications. In recent years, deep learning-based methods have been shown to produce superior performance on MR image…

Image and Video Processing · Electrical Eng. & Systems 2021-03-12 Pengfei Guo , Puyang Wang , Jinyuan Zhou , Shanshan Jiang , Vishal M. Patel

Deformable image registration is a fundamental task in medical imaging. Due to the large computational complexity of deformable registration of volumetric images, conventional iterative methods usually face the tradeoff between the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Kaicong Sun , Sven Simon

Fourier ptychographic microscopy (FPM), characterized by high-throughput computational imaging, theoretically provides a cunning solution to the trade-off between spatial resolution and field of view (FOV), which has a promising prospect in…

Optics · Physics 2024-02-29 Shuhe Zhang , Aiye Wang , Jinghao Xu , Tianci Feng , Jinhua Zhou , An Pan

Fetal ultrasound (US) examinations require the acquisition of multiple planes, each providing unique diagnostic information to evaluate fetal development and screening for congenital anomalies. However, obtaining a comprehensive,…

This paper presents a learning method for convolutional autoencoders (CAEs) for extracting features from images. CAEs can be obtained by utilizing convolutional neural networks to learn an approximation to the identity function in an…

Computer Vision and Pattern Recognition · Computer Science 2018-06-27 Naoyuki Ichimura

Lightweight deep learning models offer substantial reductions in computational cost and environmental impact, making them crucial for scientific applications. We present a lightweight CycleGAN for modality transfer in fluorescence…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Mohammad Soltaninezhad , Yashar Rouzbahani , Jhonatan Contreras , Rohan Chippalkatti , Daniel Kwaku Abankwa , Christian Eggeling , Thomas Bocklitz

Neural Radiance Fields (NeRF) have exhibited highly effective performance for photorealistic novel view synthesis recently. However, the key limitation it meets is the reliance on a hand-crafted frequency annealing strategy to recover 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Rui Qian , Chenyangguang Zhang , Yan Di , Guangyao Zhai , Ruida Zhang , Jiayu Guo , Benjamin Busam , Jian Pu

Recent advancements in real image editing have been attributed to the exploration of Generative Adversarial Networks (GANs) latent space. However, the main challenge of this procedure is GAN inversion, which aims to map the image to the…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Egor Sevriugov , Ivan Oseledets

Fourier ptychography microscopy (FPM), sharing its roots with synthetic aperture technique and phase retrieval method, is a recently developed computational microscopic super-resolution technique. By turning on the light-emitting diode…

Optics · Physics 2021-05-07 G. Zhou , S. Zhang , C. Zheng , T. Li , Y. Hu , Q. Hao

Most image super-resolution (SR) methods are developed on synthetic low-resolution (LR) and high-resolution (HR) image pairs that are constructed by a predetermined operation, e.g., bicubic downsampling. As existing methods typically learn…

Image and Video Processing · Electrical Eng. & Systems 2021-09-09 Sanghyun Son , Jaeha Kim , Wei-Sheng Lai , Ming-Husan Yang , Kyoung Mu Lee

High-throughput biological imaging is often constrained by a trade-off between acquisition speed and image quality. Fast imaging modalities, such as wide-field fluorescence microscopy, enable large-scale data acquisition but suffer from…

Image and Video Processing · Electrical Eng. & Systems 2026-04-20 Dominik Panek , Carina Rząca , Maksymilian Szczypior , Joanna Sorysz , Krzysztof Misztal , Zbigniew Baster , Zenon Rajfur