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Low-cost mobile sensors can be used to collect PM$_{2.5}$ concentration data throughout an entire city. However, identifying air pollution hotspots from the data is challenging due to the uneven spatial sampling, temporal variations in the…

The proliferation of sophisticated image editing tools and generative artificial intelligence models has made verifying the authenticity of digital images increasingly challenging, with important implications for journalism, forensic…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Kaixiang Zhao , Tianrun Yu , Aoxu Zhang , Junhao Su , Porter Jenkins , Amanda Hughes

Recent years have witnessed many advancements in the applications of 3D textured meshes. As the demand continues to rise, evaluating the perceptual quality of this new type of media content becomes crucial for quality assurance and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Armin Shafiee Sarvestani , Wei Zhou , Zhou Wang

We present a pipeline for geomorphological analysis that uses structure from motion (SfM) and deep learning on close-range aerial imagery to estimate spatial distributions of rock traits (size, roundness, and orientation) along a tectonic…

The chemical sciences are producing an unprecedented amount of large, high-dimensional data sets containing chemical structures and associated properties. However, there are currently no algorithms to visualize such data while preserving…

Human-Computer Interaction · Computer Science 2020-01-07 Daniel Probst , Jean-Louis Reymond

Background: Quantitative susceptibility mapping (QSM) of the brain is an advanced MRI technique for assessing tissue characteristics based on magnetic susceptibility, which varies with the composition of the tissue, such as iron, calcium,…

As quantum chemical properties have a dependence on their geometries, graph neural networks (GNNs) using 3D geometric information have achieved high prediction accuracy in many tasks. However, they often require 3D geometries obtained from…

Chemical Physics · Physics 2023-12-18 Hyeonsu Kim , Jeheon Woo , Seonghwan Kim , Seokhyun Moon , Jun Hyeong Kim , Woo Youn Kim

Graph Neural Networks (GNNs) are the currently most effective methods for predicting molecular properties but there remains a need for more accurate models. GNN accuracy can be improved by increasing the model complexity but this also…

Machine Learning · Computer Science 2025-10-24 Teng Jiek See , Daokun Zhang , Mario Boley , David K. Chalmers

In this paper, we develop a high-dimensional map building technique that incorporates raw pixelated semantic measurements into the map representation. The proposed technique uses Gaussian Processes (GPs) multi-class classification for map…

Robotics · Computer Science 2017-07-07 Maani Ghaffari Jadidi , Lu Gan , Steven A. Parkison , Jie Li , Ryan M. Eustice

Object detection plays an important role in various fields. Developing detection models for 2D objects that experience rotation and texture variations is a challenge. In this research, the initial stage of the proposed model integrates the…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Florentina Tatrin Kurniati , Daniel HF Manongga , Irwan Sembiring , Sutarto Wijono , Roy Rudolf Huizen

Most of the existing robotic exploration schemes use occupancy grid representations and geometric targets known as frontiers. The occupancy grid representation relies on the assumption of independence between grid cells and ignores…

Robotics · Computer Science 2019-05-22 Maani Ghaffari Jadidi , Jaime Valls Miro , Gamini Dissanayake

Understanding the dynamics of an environment, such as the movement of humans and vehicles, is crucial for agents to achieve long-term autonomy in urban environments. This requires the development of methods to capture the multi-modal and…

Robotics · Computer Science 2019-10-08 Weiming Zhi , Lionel Ott , Fabio Ramos

Self-driving vehicles rely on urban street maps for autonomous navigation. In this paper, we introduce Pix2Map, a method for inferring urban street map topology directly from ego-view images, as needed to continually update and expand…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Xindi Wu , KwunFung Lau , Francesco Ferroni , Aljoša Ošep , Deva Ramanan

Visual navigation has been widely used for state estimation of micro aerial vehicles (MAVs). For stable visual navigation, MAVs should generate perception-aware paths which guarantee enough visible landmarks. Many previous works on…

Robotics · Computer Science 2021-07-20 Dabin Kim , Gyeong Chan Kim , Youngseok Jang , H. Jin Kim

Maps are essential for diverse applications, such as vehicle navigation and autonomous robotics. Both require spatial models for effective route planning and localization. This paper addresses the challenge of road graph construction for…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Balázs Opra , Betty Le Dem , Jeffrey M. Walls , Dimitar Lukarski , Cyrill Stachniss

Grasp detection in cluttered scenes is a very challenging task for robots. Generating synthetic grasping data is a popular way to train and test grasp methods, as is Dex-net and GraspNet; yet, these methods generate training grasps on 3D…

Robotics · Computer Science 2023-02-22 Dexin Wang , Faliang Chang , Chunsheng Liu , Rurui Yang , Nanjun Li , Hengqiang Huan

Advances in instrumentation and computation have enabled increasingly sophisticated tomographic reconstruction methods. However, existing evaluation practices -- often based on simple phantoms and global image metrics -- are limited in…

Medical Physics · Physics 2026-04-06 Anna Frixou , Theodoros Leontiou , Efstathios Stiliaris , Costas N. Papanicolas

Sampling-based path planning is a widely used method in robotics, particularly in high-dimensional state space. Among the whole process of the path planning, collision detection is the most time-consuming operation. In this paper, we…

Robotics · Computer Science 2023-11-23 Xingrong Diao , Wenzheng Chi , Jiankun Wang

Facial landmark detection has been studied over decades. Numerous neural network (NN)-based approaches have been proposed for detecting landmarks, especially the convolutional neural network (CNN)-based approaches. In general, CNN-based…

Computer Vision and Pattern Recognition · Computer Science 2020-05-19 Chih-Fan Hsu , Chia-Ching Lin , Ting-Yang Hung , Chin-Laung Lei , Kuan-Ta Chen

We present a novel approach for the analysis of multivariate case-control georeferenced data using Bayesian inference in the context of disease mapping, where the spatial distribution of different types of cancers is analyzed. Extending…