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We describe the applications of clustering and visualization tools using the so-called neutral B anomalies as an example. Clustering permits parameter space partitioning into regions that can be separated with some given measurements. It…

Data Analysis, Statistics and Probability · Physics 2023-04-04 Ursula Laa , German Valencia

Research connecting text and images has recently seen several breakthroughs, with models like CLIP, DALL-E 2, and Stable Diffusion. However, the connection between text and other visual modalities, such as lidar data, has received less…

Computer Vision and Pattern Recognition · Computer Science 2023-05-03 Georg Hess , Adam Tonderski , Christoffer Petersson , Kalle Åström , Lennart Svensson

This study presents a new visualization tool for classification of satellite imagery. Visualization of feature space allows exploration of patterns in the image data and insight into the classification process and related uncertainty.…

Computational Engineering, Finance, and Science · Computer Science 2012-05-14 B. G. Kodge , P. S. Hiremath

Graph vertex ordering is widely employed in spatial data analysis, especially in urban analytics, where street graphs serve as spatial discretization for modeling and simulation. It is also crucial for visualization, as many methods require…

Graphics · Computer Science 2025-10-23 Karelia Salinas , Victor Barella , Thales Viera , Luis Gustavo Nonato

Autonomous vehicles need to have a semantic understanding of the three-dimensional world around them in order to reason about their environment. State of the art methods use deep neural networks to predict semantic classes for each point in…

Computer Vision and Pattern Recognition · Computer Science 2021-09-27 Larissa T. Triess , David Peter , Christoph B. Rist , J. Marius Zöllner

This work leverages the U.S. Federal Aviation Administration's Traffic Flow Management System dataset and DV8, a recently developed tool for highly interactive visualization of air traffic data, to develop clustering algorithms for…

Human-Computer Interaction · Computer Science 2023-10-11 Yifan Song , Keyang Yu , Seth Young

This paper presents a novel framework for robust 3D object detection from point clouds via cross-modal hallucination. Our proposed approach is agnostic to either hallucination direction between LiDAR and 4D radar. We introduce multiple…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Jianning Deng , Gabriel Chan , Hantao Zhong , Chris Xiaoxuan Lu

We propose a method to infer semantic segmentation maps from images captured under adverse weather conditions. We begin by examining existing models on images degraded by weather conditions such as rain, fog, or snow, and found that they…

Computer Vision and Pattern Recognition · Computer Science 2024-05-09 Blake Gella , Howard Zhang , Rishi Upadhyay , Tiffany Chang , Nathan Wei , Matthew Waliman , Yunhao Ba , Celso de Melo , Alex Wong , Achuta Kadambi

Point cloud segmentation (PCS) is to classify each point in point clouds. The task enables robots to parse their 3D surroundings and run autonomously. According to different point cloud representations, existing PCS models can be roughly…

Computer Vision and Pattern Recognition · Computer Science 2025-02-19 Bike Chen , Antti Tikanmäki , Juha Röning

Lidar-based object detectors are critical parts of the 3D perception pipeline in autonomous navigation systems such as self-driving cars. However, they are known to be sensitive to adverse weather conditions such as rain, snow and fog due…

Computer Vision and Pattern Recognition · Computer Science 2021-07-16 Velat Kilic , Deepti Hegde , Vishwanath Sindagi , A. Brinton Cooper , Mark A. Foster , Vishal M. Patel

In process mining, process models are extracted from event logs using process discovery algorithms and are commonly assessed using multiple quality dimensions. While the metrics that measure the relationship of an extracted process model to…

Artificial Intelligence · Computer Science 2020-11-04 Julian Theis , Houshang Darabi

Visualization authoring is an iterative process requiring users to adjust parameters to achieve desired aesthetics. Due to its complexity, users often create defective visualizations and struggle to fix them. Many seek help on forums (e.g.,…

Human-Computer Interaction · Computer Science 2026-02-05 Shuyu Shen , Sirong Lu , Leixian Shen , Yuyu Luo

Lidar point cloud distortion from moving object is an important problem in autonomous driving, and recently becomes even more demanding with the emerging of newer lidars, which feature back-and-forth scanning patterns. Accurately estimating…

Robotics · Computer Science 2022-07-05 Wen Yang , Zheng Gong , Baifu Huang , Xiaoping Hong

We address the problem of estimating image difficulty defined as the human response time for solving a visual search task. We collect human annotations of image difficulty for the PASCAL VOC 2012 data set through a crowd-sourcing platform.…

Computer Vision and Pattern Recognition · Computer Science 2017-05-24 Radu Tudor Ionescu , Bogdan Alexe , Marius Leordeanu , Marius Popescu , Dim P. Papadopoulos , Vittorio Ferrari

In the context of autonomous driving, vehicles are inherently bound to encounter more extreme weather during which public safety must be ensured. As climate is quickly changing, the frequency of heavy snowstorms is expected to increase and…

Robotics · Computer Science 2022-09-08 Clément Courcelle , Dominic Baril , François Pomerleau , Johann Laconte

Terrain surface roughness is an abstract concept, and its quantitative description is often vague. As such, there are various roughness indices used in the literature, the selection of which is often challenging in applications. This study…

Numerical Analysis · Mathematics 2023-01-09 Lei Fan

LiDAR-based 3D sensors provide point clouds, a canonical 3D representation used in various scene understanding tasks. Modern LiDARs face key challenges in several real-world scenarios, such as long-distance or low-albedo objects, producing…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Bhavya Goyal , Felipe Gutierrez-Barragan , Wei Lin , Andreas Velten , Yin Li , Mohit Gupta

In contrast to extensive studies on general vision, pre-training for scalable visual autonomous driving remains seldom explored. Visual autonomous driving applications require features encompassing semantics, 3D geometry, and temporal…

Computer Vision and Pattern Recognition · Computer Science 2024-01-01 Zetong Yang , Li Chen , Yanan Sun , Hongyang Li

The use of Hilbert curves to visualize massive vector of data is revisited following previous authors. The Hilbert curve mapping preserves locality and makes meaningful representation of the data. We call such visualization as Hilbert…

Data Analysis, Statistics and Probability · Physics 2015-11-30 E. Estevez-Rams , C. Perez-Davidenko , B. Aragón Fernández , R. Lora-Serrano

Generalizing models trained on normal visual conditions to target domains under adverse conditions is demanding in the practical systems. One prevalent solution is to bridge the domain gap between clear- and adverse-condition images to make…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Mingjia Li , Binhui Xie , Shuang Li , Chi Harold Liu , Xinjing Cheng
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