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We propose VDN-NeRF, a method to train neural radiance fields (NeRFs) for better geometry under non-Lambertian surface and dynamic lighting conditions that cause significant variation in the radiance of a point when viewed from different…

计算机视觉与模式识别 · 计算机科学 2023-04-03 Bingfan Zhu , Yanchao Yang , Xulong Wang , Youyi Zheng , Leonidas Guibas

The automatic analysis of subtle changes between longitudinal MR images is an important task as it is still a challenging issue in scope of the breast medical image processing. In this paper we propose an effective automatic change…

图像与视频处理 · 电气工程与系统科学 2021-10-22 Narges Norouzi , Reza Azmi , Nooshin Noshiri , Robab Anbiaee

We introduce a new approach to prediction in graphical models with latent-shift adaptation, i.e., where source and target environments differ in the distribution of an unobserved confounding latent variable. Previous work has shown that as…

机器学习 · 统计学 2023-06-26 William I. Walker , Arthur Gretton , Maneesh Sahani

Reconstructing the 3D model of a physical object typically requires us to align the depth scans obtained from different camera poses into the same coordinate system. Solutions to this global alignment problem usually proceed in two steps.…

计算机视觉与模式识别 · 计算机科学 2019-06-05 Xiangru Huang , Zhenxiao Liang , Xiaowei Zhou , Yao Xie , Leonidas Guibas , Qixing Huang

Clinical deployment requires segmentation models to stay stable under distribution shifts and perturbations. The mainstream solution is adversarial training (AT) to improve robustness; however, AT often brings a clean--robustness trade-off…

计算机视觉与模式识别 · 计算机科学 2025-11-21 Yuting Lu , Ziliang Wang , Weixin Xu , Wei Zhang , Yongqiang Zhao , Yang Yu , Xiaohong Zhang

High-quality magnetic resonance (MR) image, i.e., with near isotropic voxel spacing, is desirable in various scenarios of medical image analysis. However, many MR acquisitions use large inter-slice spacing in clinical practice. In this…

图像与视频处理 · 电气工程与系统科学 2021-08-18 Kai Xuan , Liping Si , Lichi Zhang , Zhong Xue , Yining Jiao , Weiwu Yao , Dinggang Shen , Dijia Wu , Qian Wang

Deep neural networks are vulnerable to adversarial perturbations, limiting deployment in safety-critical applications such as synthetic aperture radar (SAR) automatic target recognition (ATR). Randomized smoothing improves robustness by…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Daniel Brignac , Fengwei Tian , Banafsheh Latibari , Abhijit Mahalanobis , Ravi Tandon

We propose an adaptive ridge (AR) estimation scheme for a heteroscedastic linear regression model with log-linear noise in data. We simultaneously estimate the mean and variance parameters, demonstrating new asymptotic distributional and…

统计理论 · 数学 2025-09-29 Ka Long Keith Ho , Hiroki Masuda

This paper addresses the problem of detecting a moving target embedded in Gaussian noise with an unknown covariance matrix for frequency diverse array multiple-input multiple-output (FDA-MIMO) radar. To end it, assume that obtaining a set…

信号处理 · 电气工程与系统科学 2024-03-22 Ping Li , Bang Huang , Wen-Qin Wang

Signal extraction out of background noise is a common challenge in high precision physics experiments, where the measurement output is often a continuous data stream. To improve the signal to noise ratio of the detection, witness sensors…

广义相对论与量子宇宙学 · 物理学 2020-02-26 Gabriele Vajente , Yiwen Huang , Maximiliano Isi , Jenne C. Driggers , Jeffrey S. Kissel , Marek J. Szczepanczyk , Salvatore Vitale

Purpose: We perform anatomical landmarking for craniomaxillofacial (CMF) bones without explicitly segmenting them. Towards this, we propose a new simple yet efficient deep network architecture, called \textit{relational reasoning network…

机器学习 · 计算机科学 2022-09-20 Neslisah Torosdagli , Syed Anwar , Payal Verma , Denise K Liberton , Janice S. Lee , Wade W. Han , Ulas Bagci

During the image acquisition process, noise is usually added to the data mainly due to physical limitations of the acquisition sensor, and also regarding imprecisions during the data transmission and manipulation. In that sense, the…

To be robust to illumination changes when detecting objects in images, the current trend is to train a Deep Network with training images captured under many different lighting conditions. Unfortunately, creating such a training set is very…

计算机视觉与模式识别 · 计算机科学 2017-09-01 Mahdi Rad , Peter M. Roth , Vincent Lepetit

This paper presents a set of novel scan-matching techniques for vehicle pose estimation using automotive radar measurements. The proposed approach modifies the Normal Distributions Transform (NDT) -- a state-of-the-art scan-matching SLAM…

信号处理 · 电气工程与系统科学 2021-07-21 Martijn Heller , Nikita Petrov , Alexander Yarovoy

Exciting new work on the generalization bounds for neural networks (NN) given by Neyshabur et al. , Bartlett et al. closely depend on two parameter-depenedent quantities: the Lipschitz constant upper-bound and the stable rank (a softer…

机器学习 · 统计学 2020-02-21 Amartya Sanyal , Philip H. S. Torr , Puneet K. Dokania

High dynamic range (HDR) photography is becoming increasingly popular and available by DSLR and mobile-phone cameras. While deep neural networks (DNN) have greatly impacted other domains of image manipulation, their use for HDR tone-mapping…

图像与视频处理 · 电气工程与系统科学 2021-11-02 Yael Vinker , Inbar Huberman-Spiegelglas , Raanan Fattal

We present a novel framework to regularize Neural Radiance Field (NeRF) in a few-shot setting with a geometry-aware consistency regularization. The proposed approach leverages a rendered depth map at unobserved viewpoint to warp sparse…

计算机视觉与模式识别 · 计算机科学 2023-04-28 Min-seop Kwak , Jiuhn Song , Seungryong Kim

Most consumer-grade digital cameras can only capture a limited range of luminance in real-world scenes due to sensor constraints. Besides, noise and quantization errors are often introduced in the imaging process. In order to obtain high…

图像与视频处理 · 电气工程与系统科学 2021-06-22 Xiangyu Chen , Yihao Liu , Zhengwen Zhang , Yu Qiao , Chao Dong

Random telegraph noise is a prevalent variability phenomenon in nanoelectronic devices, arising from stochastic carrier exchange at defect sites and critically impacting device reliability and performance. Conventional analysis techniques…

机器学习 · 计算机科学 2025-12-02 Anirudh Varanasi , Robin Degraeve , Philippe Roussel , Clement Merckling

The brain prepares for learning even before interacting with the environment, by refining and optimizing its structures through spontaneous neural activity that resembles random noise. However, the mechanism of such a process has yet to be…

机器学习 · 计算机科学 2025-05-12 Jeonghwan Cheon , Sang Wan Lee , Se-Bum Paik
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