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Purpose: 3D reconstruction in minimally invasive surgery (MIS) enables enhanced surgical guidance through improved visualisation, tool tracking, and augmented reality. However, traditional RGB-based keypoint detection and matching pipelines…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Alexander Saikia , Chiara Di Vece , Zhehua Mao , Sierra Bonilla , Chloe He , Joao Ramalhinho , Tobias Czempiel , Sophia Bano , Danail Stoyanov

Video snapshot compressive imaging (SCI) aims to capture a sequence of video frames with only a single shot of a 2D detector, whose backbones rest in optical modulation patterns (also known as masks) and a computational reconstruction…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Ping Wang , Lishun Wang , Xin Yuan

Deep learning models are state-of-the-art in compressive spectral imaging (CSI) recovery. These methods use a deep neural network (DNN) as an image generator to learn non-linear mapping from compressed measurements to the spectral image.…

Image and Video Processing · Electrical Eng. & Systems 2022-09-12 Brayan Monroy , Jorge Bacca , Henry Arguello

2D images are observations of the 3D physical world depicted with the geometry, material, and illumination components. Recovering these underlying intrinsic components from 2D images, also known as inverse rendering, usually requires a…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Xingang Pan , Ayush Tewari , Lingjie Liu , Christian Theobalt

Spectral super-resolution that aims to recover hyperspectral image (HSI) from easily obtainable RGB image has drawn increasing interest in the field of computational photography. The crucial aspect of spectral super-resolution lies in…

Image and Video Processing · Electrical Eng. & Systems 2024-03-19 Hongyuan Wang , Lizhi Wang , Jiang Xu , Chang Chen , Xue Hu , Fenglong Song , Youliang Yan

This paper presents a novel and interpretable end-to-end learning framework, called the deep compensation unfolding network (DCUNet), for restoring light field (LF) images captured under low-light conditions. DCUNet is designed with a…

Computer Vision and Pattern Recognition · Computer Science 2024-06-27 Xianqiang Lyu , Junhui Hou

Traditional snapshot hyperspectral imaging systems generally require multiple refractive-optics-based elements to modulate light, resulting in bulky framework. In pursuit of a more compact form factor, a metasurface-based snapshot…

Optics · Physics 2022-11-29 Qiangbo Zhang , Zeqing Yu , Xinyu Liu , Chang Wang , Zhenrong Zheng

Video snapshot compressive imaging (SCI) uses a two-dimensional detector to capture consecutive video frames during a single exposure time. Following this, an efficient reconstruction algorithm needs to be designed to reconstruct the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-19 Lishun Wang , Miao Cao , Xin Yuan

Hyperspectral imaging (HSI) is emerging as a promising novel imaging modality with various potential surgical applications. Currently available cameras, however, suffer from poor integration into the clinical workflow because they require…

Diffusion models have achieved remarkable success in image generation and editing tasks. Inversion within these models aims to recover the latent noise representation for a real or generated image, enabling reconstruction, editing, and…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Zixiang Li , Haoyu Wang , Wei Wang , Chuangchuang Tan , Yunchao Wei , Yao Zhao

Hyperspectral images, which store a hundred or more spectral bands of reflectance, have become an important data source in natural and social sciences. Hyperspectral images are often generated in large quantities at a relatively coarse…

Computer Vision and Pattern Recognition · Computer Science 2022-04-29 Kangning Cui , Ruoning Li , Sam L. Polk , James M. Murphy , Robert J. Plemmons , Raymond H. Chan

In recent years, the fusion of high spatial resolution multispectral image (HR-MSI) and low spatial resolution hyperspectral image (LR-HSI) has been recognized as an effective method for HSI super-resolution (HSI-SR). However, both HSI and…

Image and Video Processing · Electrical Eng. & Systems 2024-03-15 Yuan Fang , Yipeng Liu , Jie Chen , Zhen Long , Ao Li , Chong-Yung Chi , Ce Zhu

Classic designs of hyperspectral instrumentation densely sample the spatial and spectral information of the scene of interest. Data may be compressed after the acquisition. In this paper we introduce a framework for the design of an…

Image and Video Processing · Electrical Eng. & Systems 2023-09-21 T. A. Stockmans , F. Snik , M. Esposito , C. van Dijk , C. U. Keller

Hyperspectral images (HSI) not only have a broad macroscopic field of view but also contain rich spectral information, and the types of surface objects can be identified through spectral information, which is one of the main applications in…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Sen Jia , Yifan Wang

In recent years, attention mechanisms have been exploited in single image super-resolution (SISR), achieving impressive reconstruction results. However, these advancements are still limited by the reliance on simple training strategies and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Yuxuan Jiang , Chengxi Zeng , Siyue Teng , Fan Zhang , Xiaoqing Zhu , Joel Sole , David Bull

Hyperspectral images (HSI) consist of rich spatial and spectral information, which can potentially be used for several applications. However, noise, band correlations and high dimensionality restrict the applicability of such data. This is…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Aditya Challa , Sravan Danda , B. S. Daya Sagar , Laurent Najman

Diffusion models (DMs) have been successfully applied to real image editing. These models typically invert images into latent noise vectors used to reconstruct the original images (known as inversion), and then edit them during the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-21 Jimin Dai , Yingzhen Zhang , Shuo Chen , Jian Yang , Lei Luo

The single image super-resolution(SISR) algorithms under deep learning currently have two main models, one based on convolutional neural networks and the other based on Transformer. The former uses the stacking of convolutional layers with…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Li Ke , Liu Yukai

By mapping iterative optimization algorithms into neural networks (NNs), deep unfolding networks (DUNs) exhibit well-defined and interpretable structures and achieve remarkable success in the field of compressive sensing (CS). However, most…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Weiqi Li , Bin Chen , Shuai Liu , Shijie Zhao , Bowen Du , Yongbing Zhang , Jian Zhang

Computed Tomographic Imaging Spectrometers (CTIS) capture hyperspectral images in realtime. However, post processing the imagery can require enormous computational resources; thus, limiting its application to non-realtime scenarios. To…

Image and Video Processing · Electrical Eng. & Systems 2020-06-03 Larz White , W. Bryan Bell , Ryan Haygood