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We propose and demonstrate a new imaging technique to noninvasively see through scattering layers with the aid of a spatial light modulator (SLM). A relay system projects the incoherent light pattern emitting from the scattering layer onto…

光学 · 物理学 2019-05-30 Saswata Mukherjee , A. Vijayakumar , Joseph Rosen

When one captures images in low-light conditions, the images often suffer from low visibility. This poor quality may significantly degrade the performance of many computer vision and multimedia algorithms that are primarily designed for…

计算机视觉与模式识别 · 计算机科学 2016-07-26 Xiaojie Guo

Hallucination poses a challenge to the deployment of large vision-language models (LVLMs) in applications. Unlike in large language models (LLMs), hallucination in LVLMs often arises from misalignments between visual inputs and textual…

计算机视觉与模式识别 · 计算机科学 2024-10-23 Sheng Liu , Haotian Ye , Lei Xing , James Zou

LiDAR Odometry and Mapping (LOAM) is a pivotal technique for embodied-AI applications such as autonomous driving and robot navigation. Most existing LOAM frameworks are either contingent on the supervision signal, or lack of the…

机器人学 · 计算机科学 2026-04-03 Zhiliu Yang , Jianyuan Zhang , Lianhui Zhao , Jinyu Dai , Zhu Yang

Fast and accurate object perception in low-light traffic scenes has attracted increasing attention. However, due to severe illumination degradation and the lack of reliable visual cues, existing perception models and methods struggle to…

计算机视觉与模式识别 · 计算机科学 2025-09-08 Hulin Li , Qiliang Ren , Jun Li , Hanbing Wei , Zheng Liu , Linfang Fan

Vision language models (VLMs) are AI systems paired with both language and vision encoders to process multimodal input. They are capable of performing complex semantic tasks such as automatic captioning, but it remains an open question…

计算机视觉与模式识别 · 计算机科学 2025-05-16 Tyler Tran , Sangeet Khemlani , J. G. Trafton

Supervised networks address the task of low-light enhancement using paired images. However, collecting a wide variety of low-light/clean paired images is tedious as the scene needs to remain static during imaging. In this paper, we propose…

计算机视觉与模式识别 · 计算机科学 2023-06-06 Praveen Kandula , Maitreya Suin , A. N. Rajagopalan

Training-free zero-shot composed image retrieval models are recently gaining increasing research interest due to their generalizability and flexibility in unseen multimodal retrieval. Recent LLM-based advances focus on generating the…

计算机视觉与模式识别 · 计算机科学 2026-05-21 Miaoge Li , Dongsheng Wang , Zening Sun , Jinsen Zhang , Wenhan Luo , Jingcai Guo

This study aims to comprehensively review and empirically evaluate the application of multimodal large language models (MLLMs) and Large Vision Models (VLMs) in object detection for transportation systems. In the first fold, we provide a…

计算机视觉与模式识别 · 计算机科学 2024-09-30 Huthaifa I. Ashqar , Ahmed Jaber , Taqwa I. Alhadidi , Mohammed Elhenawy

Images acquired by computer vision systems under low light conditions have multiple characteristics like high noise, lousy illumination, reflectance, and bad contrast, which make object detection tasks difficult. Much work has been done to…

计算机视觉与模式识别 · 计算机科学 2021-08-02 Winston Chen , Tejas Shah

Illumination estimation from a single image is critical in 3D rendering and it has been investigated extensively in the computer vision and computer graphic research community. On the other hand, existing works estimate illumination by…

计算机视觉与模式识别 · 计算机科学 2020-12-22 Fangneng Zhan , Changgong Zhang , Yingchen Yu , Yuan Chang , Shijian Lu , Feiying Ma , Xuansong Xie

Recent neural rendering methods have demonstrated accurate view interpolation by predicting volumetric density and color with a neural network. Although such volumetric representations can be supervised on static and dynamic scenes,…

计算机视觉与模式识别 · 计算机科学 2021-12-07 Julian Knodt , Joe Bartusek , Seung-Hwan Baek , Felix Heide

Image matting refers to predicting the alpha values of unknown foreground areas from natural images. Prior methods have focused on propagating alpha values from known to unknown regions. However, not all natural images have a specifically…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Huanqia Cai , Fanglei Xue , Lele Xu , Lili Guo

Visible Light Communication~(VLC) systems provide not only illumination and data communication, but also indoor monitoring services if the effect that different events create on the received optical signal is properly tracked. For this…

信号处理 · 电气工程与系统科学 2021-01-27 Mehmet C. Ilter , Alexis A. Dowhuszko , Jyri Hämäläinen , Risto Wichman

In recent years, deep generative models have gained significance due to their ability to synthesize natural-looking images with applications ranging from virtual reality to data augmentation for training computer vision models. While…

计算机视觉与模式识别 · 计算机科学 2020-06-08 Paul Sanzenbacher , Lars Mescheder , Andreas Geiger

When the direct view between the target and the observer is not available, due to obstacles with non-zero sizes, the observation is received after reflection from a reflector, this is the indirect view or Non-Line-Of Sight condition.…

信号处理 · 电气工程与系统科学 2019-11-12 Muhammad. H Fares , Hadi Moradi , Mahmoud Shahabadi

Accurate lighting estimation is challenging yet critical to many computer vision and computer graphics tasks such as high-dynamic-range (HDR) relighting. Existing approaches model lighting in either frequency domain or spatial domain which…

计算机视觉与模式识别 · 计算机科学 2021-06-25 Fangneng Zhan , Changgong Zhang , Wenbo Hu , Shijian Lu , Feiying Ma , Xuansong Xie , Ling Shao

In this paper we propose a simulation method using numerical integration, and develop a closed-form link loss model for physical layer channel characterization for non-line of sight (NLOS) ultraviolet (UV) communication systems. The impulse…

光学 · 物理学 2015-06-11 Ankit Gupta , Mohammad Noshad , Maïté Brandt-Pearce

This paper tackles limitations in existing non-line-of-sight (NLoS) ultraviolet (UV) channel models, where conventional approaches assume obstacle-free propagation or uniform radiation intensity. In this paper, we develop a path loss model…

信号处理 · 电气工程与系统科学 2025-03-20 Tianfeng Wu , Fang Yang , Fei Li , Renzhi Yuan , Tian Cao , Ling Cheng , Jian Song , Julian Cheng , Zhu Han

We present a method that takes as input a set of images of a scene illuminated by unconstrained known lighting, and produces as output a 3D representation that can be rendered from novel viewpoints under arbitrary lighting conditions. Our…

计算机视觉与模式识别 · 计算机科学 2020-12-08 Pratul P. Srinivasan , Boyang Deng , Xiuming Zhang , Matthew Tancik , Ben Mildenhall , Jonathan T. Barron