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Human vision is often adversely affected by complex environmental factors, especially in night vision scenarios. Thus, infrared cameras are often leveraged to help enhance the visual effects via detecting infrared radiation in the…

计算机视觉与模式识别 · 计算机科学 2021-08-05 Shuang Li , Bingfeng Han , Zhenjie Yu , Chi Harold Liu , Kai Chen , Shuigen Wang

We tackle the problem of object discovery, where objects are segmented for a given input image, and the system is trained without using any direct supervision whatsoever. A novel copy-pasting GAN framework is proposed, where the generator…

计算机视觉与模式识别 · 计算机科学 2019-05-28 Relja Arandjelović , Andrew Zisserman

Mixed Reality scene relighting, where virtual changes to lighting conditions realistically interact with physical objects, producing authentic illumination and shadows, can be used in a variety of applications. One such application in real…

图形学 · 计算机科学 2025-08-22 Hanwen Zhao , John Akers , Baback Elmieh , Ira Kemelmacher-Shlizerman

Because each indoor site has its own radio propagation characteristics, a site survey process is essential to optimize a Wi-Fi ranging strategy for range-based positioning solutions. This paper studies an unsupervised learning technique…

网络与互联网体系结构 · 计算机科学 2020-07-14 Jeongsik Choi

Underwater images suffer from colour shifts, low contrast, and haziness due to light absorption, refraction, scattering and restoring these images has warranted much attention. In this work, we present Unsupervised Underwater Neural…

计算机视觉与模式识别 · 计算机科学 2024-11-26 Vinayak Gupta , Manoj S , Mukund Varma T , Kaushik Mitra

We present a learning-based approach to relight a single image of Lambertian and low-frequency specular objects. Our method enables inserting objects from photographs into new scenes and relighting them under the new environment lighting,…

计算机视觉与模式识别 · 计算机科学 2023-03-27 Renjiao Yi , Chenyang Zhu , Kai Xu

X-ray ptychography allows for large fields to be imaged at high resolution at the cost of additional computational expense due to the large volume of data. Given limited information regarding the object, the acquired data often has an…

图像与视频处理 · 电气工程与系统科学 2022-07-01 Dergan Lin , Yi Jiang , Junjing Deng , Zichao Wendy Di

The appearance of an object is significantly affected by the illumination conditions in the environment. This is more evident with strong reflective objects as they suffer from more dominant specular reflections, causing information loss…

计算机视觉与模式识别 · 计算机科学 2019-12-18 Samar M. Alsaleh , Angelica I. Aviles-Rivero , Noemie Debroux , James K. Hahn

Low light conditions in aerial images adversely affect the performance of several vision based applications. There is a need for methods that can efficiently remove the low light attributes and assist in the performance of key vision tasks.…

计算机视觉与模式识别 · 计算机科学 2021-02-11 Prateek Garg , Murari Mandal , Pratik Narang

Electrical tomography techniques have been widely employed for multiphase-flow monitoring owing to their non invasive nature, intrinsic safety, and low cost. Nevertheless, conventional reconstructions struggle to capture fine details, which…

图像与视频处理 · 电气工程与系统科学 2025-12-23 Wejian Yan

Neural Radiance Fields (NeRFs) have been remarkably successful at synthesizing novel views of 3D scenes by optimizing a volumetric scene function. This scene function models how optical rays bring color information from a 3D object to the…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Chaitanya Amballa , Sattwik Basu , Yu-Lin Wei , Zhijian Yang , Mehmet Ergezer , Romit Roy Choudhury

Low-light image enhancement exhibits an ill-posed nature, as a given image may have many enhanced versions, yet recent studies focus on building a deterministic mapping from input to an enhanced version. In contrast, we propose a…

计算机视觉与模式识别 · 计算机科学 2021-10-05 Xiaopeng Sun , Muxingzi Li , Tianyu He , Lubin Fan

Recent advances in self-supervised visual representation learning have paved the way for unsupervised methods tackling tasks such as object discovery and instance segmentation. However, discovering objects in an image with no supervision is…

计算机视觉与模式识别 · 计算机科学 2023-03-30 Oriane Siméoni , Chloé Sekkat , Gilles Puy , Antonin Vobecky , Éloi Zablocki , Patrick Pérez

Getting rid of the fundamental limitations in fitting to the paired training data, recent unsupervised low-light enhancement methods excel in adjusting illumination and contrast of images. However, for unsupervised low light enhancement,…

计算机视觉与模式识别 · 计算机科学 2022-07-05 Zhangkai Ni , Wenhan Yang , Hanli Wang , Shiqi Wang , Lin Ma , Sam Kwong

We study the problem of reconstructing a signal from its projection on a subspace. The proposed signal reconstruction algorithms utilize a guiding subspace that represents desired properties of reconstructed signals. We show that optimal…

信息论 · 计算机科学 2016-06-13 Akshay Gadde , Andrew Knyazev , Dong Tian , Hassan Mansour

Objects in an environment affect electromagnetic waves. While this effect varies across frequencies, there exists a correlation between them, and a model with enough capacity can capture this correlation between the measurements in…

计算机视觉与模式识别 · 计算机科学 2020-01-17 Mohammad Hadi Kefayati , Vahid Pourahmadi , Hassan Aghaeinia

Exploiting the infrared area of the spectrum for classification problems is getting increasingly popular, because many materials have characteristic absorption bands in this area. However, sensors in the short wave infrared (SWIR) area and…

图像与视频处理 · 电气工程与系统科学 2024-11-08 Frank Sippel , Jürgen Seiler , André Kaup

The ever higher quality and wide diffusion of fake images have spawn a quest for reliable forensic tools. Many GAN image detectors have been proposed, recently. In real world scenarios, however, most of them show limited robustness and…

计算机视觉与模式识别 · 计算机科学 2021-12-24 Davide Cozzolino , Diego Gragnaniello , Giovanni Poggi , Luisa Verdoliva

Signal reconstruction from a sample using an orthogonal projector onto a guiding subspace is theoretically well justified, but may be difficult to practically implement. We propose more general guiding operators, which increase signal…

计算机视觉与模式识别 · 计算机科学 2017-09-08 Andrew Knyazev , Alexander Malyshev

Unsupervised image translation aims to learn the transformation from a source domain to another target domain given unpaired training data. Several state-of-the-art works have yielded impressive results in the GANs-based unsupervised…

计算机视觉与模式识别 · 计算机科学 2020-04-21 Taewon Kang , Kwang Hee Lee