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3D scene reconstruction is fundamental for spatial intelligence applications such as AR, robotics, and digital twins. Traditional multi-view stereo struggles with sparse viewpoints or low-texture regions, while neural rendering approaches,…

计算机视觉与模式识别 · 计算机科学 2026-01-06 Jiaqi Yao , Zhongmiao Yan , Jingyi Xu , Songpengcheng Xia , Yan Xiang , Ling Pei

Image retargeting changes the aspect ratio of images while aiming to preserve content and minimise noticeable distortion. Fast and high-quality methods are particularly relevant at present, due to the large variety of image and display…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Daniel Valdez-Balderas , Oleg Muraveynyk , Timothy Smith

We describe and experimentally validate an algorithm to reconstruct an unknown extended object from through-focus measured image intensities blurred by unknown aberrations. It is shown that the method can recover diffraction-limited image…

光学 · 物理学 2015-10-29 Yifeng Shao , Niek Doelman , Silvania F. Pereira , H. Paul Urbach

We introduce Intrinsic Image Fusion, a method that reconstructs high-quality physically based materials from multi-view images. Material reconstruction is highly underconstrained and typically relies on analysis-by-synthesis, which requires…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Peter Kocsis , Lukas Höllein , Matthias Nießner

Gaia Data Release 2 (Gaia DR2) provides high accuracy and precision astrometric parameters (position, parallax, and proper motion) for more than 1 billion sources and is revolutionizing astrometry. For a fast-moving target such as an…

天体物理仪器与方法 · 物理学 2021-08-25 Z. J. Zheng , Q. Y. Peng , F. R. Lin

Convolutional neural networks have recently demonstrated high-quality reconstruction for single image super-resolution. However, existing methods often require a large number of network parameters and entail heavy computational loads at…

计算机视觉与模式识别 · 计算机科学 2018-08-13 Wei-Sheng Lai , Jia-Bin Huang , Narendra Ahuja , Ming-Hsuan Yang

For nonlinear multispectral computed tomography (CT), accurate and fast image reconstruction is challenging when the scanning geometries under different X-ray energy spectra are inconsistent or mismatched. Motivated by this, we propose an…

数值分析 · 数学 2025-07-28 Yu Gao , Chong Chen

Image reconstruction from radio-frequency data is pivotal in ultrafast plane wave ultrasound imaging. Unlike the conventional delay-and-sum (DAS) technique, which relies on somewhat imprecise assumptions, deep learning-based methods perform…

计算机视觉与模式识别 · 计算机科学 2023-12-18 Hengrong Lan , Zhiqiang Li , Qiong He , Jianwen Luo

Previous surface reconstruction methods either suffer from low geometric accuracy or lengthy training times when dealing with real-world complex dynamic scenes involving multi-person activities, and human-object interactions. To tackle the…

计算机视觉与模式识别 · 计算机科学 2024-09-30 Shuo Wang , Binbin Huang , Ruoyu Wang , Shenghua Gao

In this paper, we present an algorithm for online 3D reconstruction of dynamic scenes using individual times of arrival (ToA) of photons recorded by single-photon detector arrays. One of the main challenges in 3D imaging using single-photon…

图像与视频处理 · 电气工程与系统科学 2020-02-19 Yoann Altmann , Stephen McLaughlin , Michael E. Davies

Ptychography is a popular imaging technique that combines diffractive imaging with scanning microscopy. The technique consists of a coherent beam that is scanned across an object in a series of overlapping positions, leading to reliable and…

数值分析 · 数学 2024-08-08 Ricardo Parada , Samy Wu Fung , Stanley Osher

Generalizable 3D Gaussian Splatting reconstruction showcases advanced Image-to-3D content creation but requires substantial computational resources and large datasets, posing challenges to training models from scratch. Current methods…

计算机视觉与模式识别 · 计算机科学 2026-01-05 Xiufeng Huang , Ka Chun Cheung , Runmin Cong , Simon See , Renjie Wan

Hyperspectral neutron computed tomography is a tomographic imaging technique in which thousands of wavelength-specific neutron radiographs are measured for each tomographic view. In conventional hyperspectral reconstruction, data from each…

Image retargeting aims at altering an image size while preserving important content and minimizing noticeable distortions. However, previous image retargeting methods create outputs that suffer from artifacts and distortions. Besides, most…

计算机视觉与模式识别 · 计算机科学 2022-09-13 Mohammad Reza Naderi , Mohammad Hossein Givkashi , Nader Karimi , Shahram Shirani , Shadrokh Samavi

The ESA Gaia spacecraft has two Shack-Hartmann wavefront sensors (WFS) on its focal plane. They are required to refocus the telescope in-orbit due to launch settings and gravity release. They require bright stars to provide good signal to…

天体物理仪器与方法 · 物理学 2015-06-05 Alcione Mora , Amir Vosteen

As the misuse of AI-generated images grows, generalizable image detection techniques are urgently needed. Recent state-of-the-art (SOTA) methods adopt aligned training datasets to reduce content, size, and format biases, empowering models…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Yiheng Li , Yang Yang , Zichang Tan , Gao Li , Zhen Lei , Wenhao Wang

3D modeling of highly reflective objects remains challenging due to strong view-dependent appearances. While previous SDF-based methods can recover high-quality meshes, they are often time-consuming and tend to produce over-smoothed…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Jinguang Tong , Xuesong li , Fahira Afzal Maken , Sundaram Muthu , Lars Petersson , Chuong Nguyen , Hongdong Li

Infrared and visible image fusion, as a hot topic in image processing and image enhancement, aims to produce fused images retaining the detail texture information in visible images and the thermal radiation information in infrared images. A…

图像与视频处理 · 电气工程与系统科学 2021-04-15 Zixiang Zhao , Jiangshe Zhang , Shuang Xu , Kai Sun , Chunxia Zhang , Junmin Liu

Diffusion models have become a popular approach for image generation and reconstruction due to their numerous advantages. However, most diffusion-based inverse problem-solving methods only deal with 2D images, and even recently published 3D…

图像与视频处理 · 电气工程与系统科学 2023-09-04 Suhyeon Lee , Hyungjin Chung , Minyoung Park , Jonghyuk Park , Wi-Sun Ryu , Jong Chul Ye

This paper presents a novel method designed to enhance the efficiency and accuracy of both image retrieval and pixel retrieval. Traditional diffusion methods struggle to propagate spatial information effectively in conventional graphs due…

计算机视觉与模式识别 · 计算机科学 2024-06-18 Guoyuan An , Yuchi Huo , Sung-Eui Yoon