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Accurate LiDAR simulation is crucial for autonomous driving, especially under adverse weather conditions. Existing methods struggle to capture the complex interactions between LiDAR signals and atmospheric phenomena, leading to unrealistic…

Robotics · Computer Science 2026-04-03 Vivek Anand , Bharat Lohani , Rakesh Mishra , Gaurav Pandey

Text-to-image diffusion generative models can generate high quality images at the cost of tedious prompt engineering. Controllability can be improved by introducing layout conditioning, however existing methods lack layout editing ability…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Alessandro Fontanella , Petru-Daniel Tudosiu , Yongxin Yang , Shifeng Zhang , Sarah Parisot

Lidar-based sensing drives current autonomous vehicles. Despite rapid progress, current Lidar sensors still lag two decades behind traditional color cameras in terms of resolution and cost. For autonomous driving, this means that large…

Computer Vision and Pattern Recognition · Computer Science 2021-11-15 Tianwei Yin , Xingyi Zhou , Philipp Krähenbühl

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

Semantic correspondence made tremendous progress through the recent advancements of large vision models (LVM). While these LVMs have been shown to reliably capture local semantics, the same can currently not be said for capturing global…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Krispin Wandel , Hesheng Wang

Data generation is recognized as a potent strategy for unsupervised domain adaptation (UDA) pertaining semantic segmentation in adverse weathers. Nevertheless, these adverse weather scenarios encompass multiple possibilities, and…

Computer Vision and Pattern Recognition · Computer Science 2024-02-12 Fengyi Shen , Li Zhou , Kagan Kucukaytekin , Ziyuan Liu , He Wang , Alois Knoll

Generating consistent multiple views for 3D reconstruction tasks is still a challenge to existing image-to-3D diffusion models. Generally, incorporating 3D representations into diffusion model decrease the model's speed as well as…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 Emmanuelle Bourigault , Pauline Bourigault

This paper presents a simulation workflow for generating synthetic LiDAR datasets to support autonomous vehicle perception, robotics research, and sensor security analysis. Leveraging the CoppeliaSim simulation environment and its Python…

Robotics · Computer Science 2025-06-24 Abhishek Phadke , Shakib Mahmud Dipto , Pratip Rana

Achieving pixel-level segmentation with low computational cost using multimodal data remains a key challenge in crack segmentation tasks. Existing methods lack the capability for adaptive perception and efficient interactive fusion of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Hui Liu , Chen Jia , Fan Shi , Xu Cheng , Mengfei Shi , Xia Xie , Shengyong Chen

Multi-modal depth estimation is one of the key challenges for endowing autonomous machines with robust robotic perception capabilities. There have been outstanding advances in the development of uni-modal depth estimation techniques based…

Robotics · Computer Science 2023-07-21 Johan S. Obando-Ceron , Victor Romero-Cano , Sildomar Monteiro

LiDAR scene synthesis is an emerging solution to scarcity in 3D data for robotic tasks such as autonomous driving. Recent approaches employ diffusion or flow matching models to generate realistic scenes, but 3D data remains limited compared…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Nicolas Sereyjol-Garros , Ellington Kirby , Victor Besnier , Nermin Samet

RGB-D cameras are crucial in robotic perception, given their ability to produce images augmented with depth data. However, their limited FOV often requires multiple cameras to cover a broader area. In multi-camera RGB-D setups, the goal is…

Computer Vision and Pattern Recognition · Computer Science 2024-04-24 Jaeho Shin , Seungsang Yun , Ayoung Kim

Differentiable volumetric rendering is a powerful paradigm for 3D reconstruction and novel view synthesis. However, standard volume rendering approaches struggle with degenerate geometries in the case of limited viewpoint diversity, a…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Vitor Guizilini , Igor Vasiljevic , Jiading Fang , Rares Ambrus , Sergey Zakharov , Vincent Sitzmann , Adrien Gaidon

Recent generative methods for single-shot high dynamic range (HDR) image reconstruction show promising results, but often struggle with preserving fidelity to the input image. They require separate models to handle highlights and shadows,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Chinmay Talegaonkar , Jinshi He , Christopher McKenna , Nicholas Antipa

LiDAR sensors are often considered essential for autonomous driving, but high-resolution sensors remain expensive while affordable low-resolution sensors produce sparse point clouds that miss critical details. LiDAR super-resolution…

Computer Vision and Pattern Recognition · Computer Science 2026-02-19 June Moh Goo , Zichao Zeng , Jan Boehm

LiDAR and camera are two essential sensors for 3D object detection in autonomous driving. LiDAR provides accurate and reliable 3D geometry information while the camera provides rich texture with color. Despite the increasing popularity of…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Qi Jiang , Hao Sun , Xi Zhang

Autonomous vehicles (AVs) rely on LiDAR sensors for environmental perception and decision-making in driving scenarios. However, ensuring the safety and reliability of AVs in complex environments remains a pressing challenge. To address this…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Shijun Zheng , Weiquan Liu , Yu Guo , Yu Zang , Siqi Shen , Cheng Wang

3D visual grounding (VG) aims to locate objects or regions within 3D scenes guided by natural language descriptions. While indoor 3D VG has advanced, outdoor 3D VG remains underexplored due to two challenges: (1) large-scale outdoor LiDAR…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Yeong-Seung Baek , Heung-Seon Oh

Creating novel images by fusing visual cues from multiple sources is a fundamental yet underexplored problem in image-to-image generation, with broad applications in artistic creation, virtual reality and visual media. Existing methods…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Zeren Xiong , Yue Yu , Zedong Zhang , Shuo Chen , Jian Yang , Jun Li

Existing diffusion-based 3D scene generation methods primarily operate in 2D image/video latent spaces, which makes maintaining cross-view appearance and geometric consistency inherently challenging. To bridge this gap, we present OneWorld,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Sensen Gao , Zhaoqing Wang , Qihang Cao , Dongdong Yu , Changhu Wang , Tongliang Liu , Mingming Gong , Jiawang Bian