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Casual photography is often performed in uncontrolled lighting that can result in low quality images and degrade the performance of downstream processing. We consider the problem of estimating surface normal and reflectance maps of scenes…

Computer Vision and Pattern Recognition · Computer Science 2020-12-14 Zhihao Xia , Jason Lawrence , Supreeth Achar

We present SOLID-Net, a neural network for spatially-varying outdoor lighting estimation from a single outdoor image for any 2D pixel location. Previous work has used a unified sky environment map to represent outdoor lighting. Instead, we…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Yongjie Zhu , Yinda Zhang , Si Li , Boxin Shi

Robust semantic scene segmentation for automotive applications is a challenging problem in two key aspects: (1) labelling every individual scene pixel and (2) performing this task under unstable weather and illumination changes (e.g., foggy…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Naif Alshammari , Samet Akcay , Toby P. Breckon

3D modeling from satellite imagery is essential in areas of environmental science, urban planning, agriculture, and disaster response. However, traditional 3D modeling techniques face unique challenges in the remote sensing context,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Nikhil Behari , Akshat Dave , Kushagra Tiwary , William Yang , Ramesh Raskar

Robust 3D environmental perception is critical for applications such as autonomous driving and robot navigation. However, optical sensors such as cameras and LiDAR often fail under adverse conditions, including smoke, fog, and non-ideal…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Kunzhe Song , Geo Jie Zhou , Xiaoming Liu , Huacheng Zeng

Though the background is an important signal for image classification, over reliance on it can lead to incorrect predictions when spurious correlations between foreground and background are broken at test time. Training on a dataset where…

Computer Vision and Pattern Recognition · Computer Science 2022-11-21 Priyatham Kattakinda , Alexander Levine , Soheil Feizi

Lighting understanding plays an important role in virtual object composition, including mobile augmented reality (AR) applications. Prior work often targets recovering lighting from the physical environment to support photorealistic AR…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Yiqin Zhao , Sean Fanello , Tian Guo

This paper addresses the task of estimating the light arriving from all directions to a 3D point observed at a selected pixel in an RGB image. This task is challenging because it requires predicting a mapping from a partial scene…

Computer Vision and Pattern Recognition · Computer Science 2019-06-19 Shuran Song , Thomas Funkhouser

We introduce a general framework for visual forecasting, which directly imitates visual sequences without additional supervision. As a result, our model can be applied at several semantic levels and does not require any domain knowledge or…

Computer Vision and Pattern Recognition · Computer Science 2017-08-22 Kuo-Hao Zeng , William B. Shen , De-An Huang , Min Sun , Juan Carlos Niebles

Recent advances in implicit neural representations and differentiable rendering make it possible to simultaneously recover the geometry and materials of an object from multi-view RGB images captured under unknown static illumination.…

Computer Vision and Pattern Recognition · Computer Science 2022-04-15 Yuanqing Zhang , Jiaming Sun , Xingyi He , Huan Fu , Rongfei Jia , Xiaowei Zhou

Vision in adverse weather conditions, whether it be snow, rain, or fog is challenging. In these scenarios, scattering and attenuation severly degrades image quality. Handling such inclement weather conditions, however, is essential to…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Andrea Ramazzina , Mario Bijelic , Stefanie Walz , Alessandro Sanvito , Dominik Scheuble , Felix Heide

Scene completion refers to obtaining dense scene representation from an incomplete perception of complex 3D scenes. This helps robots detect multi-scale obstacles and analyse object occlusions in scenarios such as autonomous driving. Recent…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Pengfei Li , Ruowen Zhao , Yongliang Shi , Hao Zhao , Jirui Yuan , Guyue Zhou , Ya-Qin Zhang

This paper presents a system for autonomous semantic exploration and dense semantic target mapping of a complex unknown environment using a ground robot equipped with a LiDAR-panoramic camera suite. Existing approaches often struggle to…

The development of computer vision algorithms for Unmanned Aerial Vehicles (UAVs) imagery heavily relies on the availability of annotated high-resolution aerial data. However, the scarcity of large-scale real datasets with pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Giulia Rizzoli , Francesco Barbato , Matteo Caligiuri , Pietro Zanuttigh

This paper proposes a novel approach to map-based navigation system for unmanned aircraft. The proposed system attempts label-to-label matching, not image-to-image matching, between aerial images and a map database. The ground objects can…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Youngjoo Kim

A conditional random field (CRF) model for cloud detection in ground based sky images is presented. We show that very high cloud detection accuracy can be achieved by combining a discriminative classifier and a higher order clique potential…

Image and Video Processing · Electrical Eng. & Systems 2019-06-19 Vijai T. Jayadevan , Jeffrey J. Rodriguez , Alexander D. Cronin

An accurate depth map of the environment is critical to the safe operation of autonomous robots and vehicles. Currently, either light detection and ranging (LIDAR) or stereo matching algorithms are used to acquire such depth information.…

Scene understanding enables intelligent agents to interpret and comprehend their environment. While existing large vision-language models (LVLMs) for scene understanding have primarily focused on indoor household tasks, they face two…

Computer Vision and Pattern Recognition · Computer Science 2025-07-18 Penglei Sun , Yaoxian Song , Xiangru Zhu , Xiang Liu , Qiang Wang , Yue Liu , Changqun Xia , Tiefeng Li , Yang Yang , Xiaowen Chu

One key vertical application that will be enabled by 6G is the automation of the processes with the increased use of robots. As a result, sensing and localization of the surrounding environment becomes a crucial factor for these robots to…

Signal Processing · Electrical Eng. & Systems 2021-02-23 Madhushanka Padmal , Dileepa Marasinghe , Vijitha Isuru , Nalin Jayaweera , Samad Ali , Nandana Rajatheva

The performance of leaning-based perception algorithms suffer when deployed in out-of-distribution and underrepresented environments. Outdoor robots are particularly susceptible to rapid changes in visual scene appearance due to dynamic…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Peter Mortimer , Mirko Maehlisch