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3D surface reconstruction is essential across applications of virtual reality, robotics, and mobile scanning. However, RGB-based reconstruction often fails in low-texture, low-light, and low-albedo scenes. Handheld LiDARs, now common on…

Image and Video Processing · Electrical Eng. & Systems 2024-12-02 Nikhil Behari , Aaron Young , Siddharth Somasundaram , Tzofi Klinghoffer , Akshat Dave , Ramesh Raskar

LiDAR-based 3D detection plays a vital role in autonomous navigation. Surprisingly, although autonomous vehicles (AVs) must detect both near-field objects (for collision avoidance) and far-field objects (for longer-term planning),…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Neehar Peri , Mengtian Li , Benjamin Wilson , Yu-Xiong Wang , James Hays , Deva Ramanan

In recent years, computer vision has transformed fields such as medical imaging, object recognition, and geospatial analytics. One of the fundamental tasks in computer vision is semantic image segmentation, which is vital for precise object…

Computer Vision and Pattern Recognition · Computer Science 2023-11-09 Dinar Sharafutdinov , Stanislav Kuskov , Saian Protasov , Alexey Voropaev

High-resolution image synthesis remains a core challenge in generative modeling, particularly in balancing computational efficiency with the preservation of fine-grained visual detail. We present Latent Wavelet Diffusion (LWD), a…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Luigi Sigillo , Shengfeng He , Danilo Comminiello

LiDAR sensors are widely used in autonomous driving due to the reliable 3D spatial information. However, the data of LiDAR is sparse and the frequency of LiDAR is lower than that of cameras. To generate denser point clouds spatially and…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Xudong Huang , Chunyu Lin , Haojie Liu , Lang Nie , Yao Zhao

State-of-the-art LiDAR-camera 3D object detectors usually focus on feature fusion. However, they neglect the factor of depth while designing the fusion strategy. In this work, we are the first to observe that different modalities play…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Mingqian Ji , Jian Yang , Shanshan Zhang

Recent works have demonstrated the importance of object completion in 3D Perception from Lidar signal. Several methods have been proposed in which modules were used to densify the point clouds produced by laser scanners, leading to better…

Computer Vision and Pattern Recognition · Computer Science 2023-11-16 Tianran Liu , Zeping Zhang , Morteza Mousa Pasandi , Robert Laganiere

Today's advanced driver assistance systems (ADAS), like adaptive cruise control or rear collision warning, are finding broader adoption across vehicle classes. Integrating such advanced, multimodal Large Language Models (LLMs) on board a…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Malsha Ashani Mahawatta Dona , Beatriz Cabrero-Daniel , Yinan Yu , Christian Berger

Ensuring the safety and extended operational life of fighter aircraft necessitates frequent and exhaustive inspections. While surface defect detection is feasible for human inspectors, manual methods face critical limitations in…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 Jin Huang , Mingqiang Wei , Zikuan Li , Hangyu Qu , Wei Zhao , Xinyu Bai

Lidars and cameras are critical sensors that provide complementary information for 3D detection in autonomous driving. While prevalent multi-modal methods simply decorate raw lidar point clouds with camera features and feed them directly to…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Yingwei Li , Adams Wei Yu , Tianjian Meng , Ben Caine , Jiquan Ngiam , Daiyi Peng , Junyang Shen , Bo Wu , Yifeng Lu , Denny Zhou , Quoc V. Le , Alan Yuille , Mingxing Tan

In robotics and computer vision communities, extensive studies have been widely conducted regarding surveillance tasks, including human detection, tracking, and motion recognition with a camera. Additionally, deep learning algorithms are…

Unsupervised 3D object detection leverages heuristic algorithms to discover potential objects, offering a promising route to reduce annotation costs in autonomous driving. Existing approaches mainly generate pseudo labels and refine them…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Xusheng Guo , Wanfa Zhang , Shijia Zhao , Qiming Xia , Xiaolong Xie , Mingming Wang , Hai Wu , Chenglu Wen

Recent advancements in 3D object detection have benefited from multi-modal information from the multi-view cameras and LiDAR sensors. However, the inherent disparities between the modalities pose substantial challenges. We observe that…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Juhan Cha , Minseok Joo , Jihwan Park , Sanghyeok Lee , Injae Kim , Hyunwoo J. Kim

Freespace detection is an essential component of autonomous driving technology and plays an important role in trajectory planning. In the last decade, deep learning-based free space detection methods have been proved feasible. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Chen Min , Weizhong Jiang , Dawei Zhao , Jiaolong Xu , Liang Xiao , Yiming Nie , Bin Dai

Dense facial landmark detection is one of the key elements of face processing pipeline. It is used in virtual face reenactment, emotion recognition, driver status tracking, etc. Early approaches were suitable for facial landmark detection…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Kostiantyn Khabarlak , Larysa Koriashkina

Intense light sources often produce flares in captured images at night, which deteriorates the visual quality and negatively affects downstream applications. In order to train an effective flare removal network, a reliable dataset is…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Lishen Qu , Shihao Zhou , Jinshan Pan , Jinglei Shi , Duosheng Chen , Jufeng Yang

Although Large Language Models have demonstrated powerful capabilities in a wide range of tasks such as language understanding and code generation, the frequent occurrence of hallucinations during the generation process has become a…

Computation and Language · Computer Science 2025-10-09 JinXin Li , Gang Tu , JunJie Hu

Lithology discrimination is a crucial activity in characterizing oil reservoirs, and processing lithology microscopic images is an essential technique for investigating fossils and minerals and geological assessment of shale oil…

Fully sparse 3D detection has attracted an increasing interest in the recent years. However, the sparsity of the features in these frameworks challenges the generation of proposals because of the limited diffusion process. In addition, the…

Computer Vision and Pattern Recognition · Computer Science 2024-09-12 Tianran Liu , Morteza Mousa Pasandi , Robert Laganiere

This paper proposes LONER, the first real-time LiDAR SLAM algorithm that uses a neural implicit scene representation. Existing implicit mapping methods for LiDAR show promising results in large-scale reconstruction, but either require…

Robotics · Computer Science 2024-03-26 Seth Isaacson , Pou-Chun Kung , Mani Ramanagopal , Ram Vasudevan , Katherine A. Skinner