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Hyperspectral images (HSIs) have been widely applied in many fields, such as military, agriculture, and environment monitoring. Nevertheless, HSIs commonly suffer from various types of noise during acquisition. Therefore, denoising is…

Image and Video Processing · Electrical Eng. & Systems 2021-04-07 Yan Gao , Feng Gao , Junyu Dong

Recently, metasurfaces have experienced revolutionary growth in the sensing and superresolution imaging field, due to their enabling of subwavelength manipulation of electromagnetic waves. However, the addition of metasurfaces multiplies…

Signal Processing · Electrical Eng. & Systems 2023-05-08 Jin Zhao , Huang Zhao Zhang , Ming-Zhe Chong , Yue-Yi Zhang , Zi-Wen Zhang , Zong-Kun Zhang , Chao-Hai Du , Pu-Kun Liu

Real-world imaging systems acquire measurements that are degraded by noise, optical aberrations, and other imperfections that make image processing for human viewing and higher-level perception tasks challenging. Conventional cameras…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Steven Diamond , Vincent Sitzmann , Frank Julca-Aguilar , Stephen Boyd , Gordon Wetzstein , Felix Heide

Most digital cameras use sensors coated with a Color Filter Array (CFA) to capture channel components at every pixel location, resulting in a mosaic image that does not contain pixel values in all channels. Current research on…

Computer Vision and Pattern Recognition · Computer Science 2019-05-24 Ramchalam Kinattinkara Ramakrishnan , Shangling Jui , Vahid Patrovi Nia

High-resolution semantic segmentation requires substantial computational resources. Traditional approaches in the field typically downscale the input images before processing and then upscale the low-resolution outputs back to their…

Computer Vision and Pattern Recognition · Computer Science 2024-02-09 Ritambhara Singh , Abhishek Jain , Pietro Perona , Shivani Agarwal , Junfeng Yang

Demosaicking is standardly the first step in today's Image Signal Processing (ISP) pipeline of digital cameras. It reconstructs image RGB values from the spatially and spectrally sparse Color Filter Array (CFA) samples, which are the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-23 Niu Yan , Jihong Ouyang

Image compression using neural networks have reached or exceeded non-neural methods (such as JPEG, WebP, BPG). While these networks are state of the art in ratedistortion performance, computational feasibility of these models remains a…

Image and Video Processing · Electrical Eng. & Systems 2019-12-19 Nick Johnston , Elad Eban , Ariel Gordon , Johannes Ballé

Compared to natural images, hyperspectral images (HSIs) consist of a large number of bands, with each band capturing different spectral information from a certain wavelength, even some beyond the visible spectrum. These characteristics of…

Image and Video Processing · Electrical Eng. & Systems 2023-09-18 Orhan Torun , Seniha Esen Yuksel , Erkut Erdem , Nevrez Imamoglu , Aykut Erdem

Hyperspectral imaging provides precise classification for land use and cover due to its exceptional spectral resolution. However, the challenges of high dimensionality and limited spatial resolution hinder its effectiveness. This study…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Shivam Pande

Most of the Deep Neural Networks (DNNs) based CT image denoising literature shows that DNNs outperform traditional iterative methods in terms of metrics such as the RMSE, the PSNR and the SSIM. In many instances, using the same metrics, the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-19 Prabhat KC , Rongping Zeng , M. Mehdi Farhangi , Kyle J. Myers

Image demosaicing is an important step in the image processing pipeline for digital cameras. In data centric approaches, such as deep learning, the distribution of the dataset used for training can impose a bias on the networks' outcome.…

Image and Video Processing · Electrical Eng. & Systems 2024-02-13 Yuval Becker , Raz Z. Nossek , Tomer Peleg

Deep learning-based super-resolution models have the potential to revolutionize biomedical imaging and diagnoses by effectively tackling various challenges associated with early detection, personalized medicine, and clinical automation.…

Medical Physics · Physics 2023-06-27 Yuanzheng Ma , Xinyue Wang , Benqi Zhao , Ying Xiao , Shijie Deng , Jian Song , Xun Guan

Image prior modeling is the key issue in image recovery, computational imaging, compresses sensing, and other inverse problems. Recent algorithms combining multiple effective priors such as the sparse or low-rank models, have demonstrated…

Image and Video Processing · Electrical Eng. & Systems 2020-03-31 Bihan Wen , Yanjun Li , Yuqi Li , Yoram Bresler

A significant research problem of recent interest is the localization of targets like vessels, surgical needles, and tumors in photoacoustic (PA) images. To achieve accurate localization, a high photoacoustic signal-to-noise ratio (SNR) is…

Image and Video Processing · Electrical Eng. & Systems 2021-05-03 Amirsaeed Yazdani , Sumit Agrawal , Kerrick Johnstonbaugh , Sri-Rajasekhar Kothapalli , Vishal Monga

Multimode fibers (MMFs) have the potential to carry complex images for endoscopy and related applications, but decoding the complex speckle patterns produced by mode-mixing and modal dispersion in MMFs is a serious challenge. Several groups…

Image and Video Processing · Electrical Eng. & Systems 2020-09-02 Changyan Zhu , Eng Aik Chan , You Wang , Weina Peng , Ruixiang Guo , Baile Zhang , Cesare Soci , Yidong Chong

Face hallucination, which is the task of generating a high-resolution face image from a low-resolution input image, is a well-studied problem that is useful in widespread application areas. Face hallucination is particularly challenging…

Computer Vision and Pattern Recognition · Computer Science 2016-04-28 Oncel Tuzel , Yuichi Taguchi , John R. Hershey

Recently, CNN based end-to-end deep learning methods achieve superiority in Image Dehazing but they tend to fail drastically in Non-homogeneous dehazing. Apart from that, existing popular Multi-scale approaches are runtime intensive and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Sourya Dipta Das , Saikat Dutta

Recently, deep learning methods such as the convolutional neural networks have gained prominence in the area of image denoising. This is owing to their proven ability to surpass state-of-the-art classical image denoising algorithms such as…

Image and Video Processing · Electrical Eng. & Systems 2024-09-02 Basit O. Alawode , Mudassir Masood

The rapid progress of Artificial Intelligence research came with the development of increasingly complex deep learning models, leading to growing challenges in terms of computational complexity, energy efficiency and interpretability. In…

Machine Learning · Computer Science 2023-06-28 Yuanrong Wang , Antonio Briola , Tomaso Aste

Classical image denoising methods utilize the non-local self-similarity principle to effectively recover image content from noisy images. Current state-of-the-art methods use deep convolutional neural networks (CNNs) to effectively learn…

Computer Vision and Pattern Recognition · Computer Science 2021-12-01 Junaid Malik , Serkan Kiranyaz , Moncef Gabbouj