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Data scarcity is a bottleneck to machine learning-based perception modules, usually tackled by augmenting real data with synthetic data from simulators. Realistic models of the vehicle perception sensors are hard to formulate in closed…

Image and Video Processing · Electrical Eng. & Systems 2019-12-03 Ahmad El Sallab , Ibrahim Sobh , Mohamed Zahran , Mohamed Shawky

High-quality Earth Observation (EO) imagery is essential for accurate analysis and informed decision making across sectors. However, data scarcity caused by atmospheric conditions, seasonal variations, and limited geographical coverage…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Tiago Sousa , Benoît Ries , Nicolas Guelfi

For 3D object detection, labeling lidar point cloud is difficult, so data augmentation is an important module to make full use of precious annotated data. As a widely used data augmentation method, GT-sample effectively improves detection…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Xuzhong Hu , Zaipeng Duan , Jie Ma

Training autonomous driving and navigation systems requires large and diverse point cloud datasets that capture complex edge case scenarios from various dynamic urban settings. Acquiring such diverse scenarios from real-world point cloud…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Suchetan G. Uppur , Hemant Kumar , Vaibhav Kumar

LiDAR's dense, sharp point cloud (PC) representations of the surrounding environment enable accurate perception and significantly improve road safety by offering greater scene awareness and understanding. However, LiDAR's high cost…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 William Muckelroy , Mohammed Alsakabi , John Dolan , Ozan Tonguz

Semantic segmentation of 3D LiDAR point clouds, essential for autonomous driving and infrastructure management, is best achieved by supervised learning, which demands extensive annotated datasets and faces the problem of domain shifts. We…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Andrew Caunes , Thierry Chateau , Vincent Frémont

Safety of the Intended Functionality (SOTIF) addresses sensor performance limitations and deep learning-based object detection insufficiencies to ensure the intended functionality of Automated Driving Systems (ADS). This paper presents a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-06 Milin Patel , Rolf Jung

This technical report presents our team's solution for the WeatherProof Dataset Challenge: Semantic Segmentation in Adverse Weather at CVPR'24 UG2+. We propose a two-stage deep learning framework for this task. In the first stage, we…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Jianzhao Wang , Yanyan Wei , Dehua Hu , Yilin Zhang , Shengeng Tang , Kun Li , Zhao Zhang

Robustness of different pattern recognition methods is one of the key challenges in autonomous driving, especially when driving in the high variety of road environments and weather conditions, such as gravel roads and snowfall. Although one…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Jyri Maanpää , Iaroslav Melekhov , Josef Taher , Petri Manninen , Juha Hyyppä

We present a lightweight post-processing method to refine the semantic segmentation results of point cloud sequences. Most existing methods usually segment frame by frame and encounter the inherent ambiguity of the problem: based on a…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Yutaka Momma , Weimin Wang , Edgar Simo-Serra , Satoshi Iizuka , Ryosuke Nakamura , Hiroshi Ishikawa

Satellite Image Time Series (SITS) is crucial for agricultural semantic segmentation. However, Cloud contamination introduces time gaps in SITS, disrupting temporal dependencies and causing feature shifts, leading to degraded performance of…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Yuze Wang , Mariana Belgiu , Haiyang Wu , Dandan Zhong , Yangyang Cao , Chao Tao

Depth information is essential in computer vision, particularly in underwater imaging, robotics, and autonomous navigation. However, conventional augmentation techniques overlook depth aware transformations, limiting model robustness in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Md Sazidur Rahman , David Cabecinhas , Ricard Marxer

Image restoration under adverse weather conditions is a critical task for many vision-based applications. Recent all-in-one frameworks that handle multiple weather degradations within a unified model have shown potential. However, the…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Jiamei Xiong , Xuefeng Yan , Yongzhen Wang , Wei Zhao , Xiao-Ping Zhang , Mingqiang Wei

Semantic Segmentation is a crucial component in the perception systems of many applications, such as robotics and autonomous driving that rely on accurate environmental perception and understanding. In literature, several approaches are…

Computer Vision and Pattern Recognition · Computer Science 2021-03-17 Ran Cheng , Ryan Razani , Yuan Ren , Liu Bingbing

Incremental learning represents a crucial task in aerial image processing, especially given the limited availability of large-scale annotated datasets. A major issue concerning current deep neural architectures is known as catastrophic…

Computer Vision and Pattern Recognition · Computer Science 2021-12-08 Edoardo Arnaudo , Fabio Cermelli , Antonio Tavera , Claudio Rossi , Barbara Caputo

LiDAR-based place recognition (LPR) is a key component for autonomous driving, and its resilience to environmental corruption is critical for safety in high-stakes applications. While state-of-the-art (SOTA) LPR methods perform well in…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Wenqing Kuang , Xiongwei Zhao , Yehui Shen , Congcong Wen , Huimin Lu , Zongtan Zhou , Xieyuanli Chen

Automotive perception systems are obligated to meet high requirements. While optical sensors such as Camera and Lidar struggle in adverse weather conditions, Radar provides a more robust perception performance, effectively penetrating fog,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Christof Leitgeb , Thomas Puchleitner , Max Peter Ronecker , Daniel Watzenig

Accurate 3D object detection in all weather conditions remains a key challenge to enable the widespread deployment of autonomous vehicles, as most work to date has been performed on clear weather data. In order to generalize to adverse…

Computer Vision and Pattern Recognition · Computer Science 2023-05-05 Barza Nisar , Hruday Vishal Kanna Anand , Steven L. Waslander

LiDAR and camera are two modalities available for 3D semantic segmentation in autonomous driving. The popular LiDAR-only methods severely suffer from inferior segmentation on small and distant objects due to insufficient laser points, while…

Computer Vision and Pattern Recognition · Computer Science 2023-03-16 Jiale Li , Hang Dai , Hao Han , Yong Ding

Semantic segmentation of aerial point cloud data can be utilised to differentiate which points belong to classes such as ground, buildings, or vegetation. Point clouds generated from aerial sensors mounted to drones or planes can utilise…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Matthew Howe , Boris Repasky , Timothy Payne