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Millimeter-wave radar enables robust environment perception in autonomous systems under adverse conditions yet suffers from sparse, noisy point clouds with low angular resolution. Existing diffusion-based radar enhancement methods either…

Image and Video Processing · Electrical Eng. & Systems 2026-01-13 Hao Li , Xinqi Liu , Yaoqing Jin

In this paper, we explore a self-supervised model that learns to detect the symmetry of a single object without requiring a dataset-relying solely on the input object itself. We hypothesize that the symmetry of an object can be determined…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Isaac Aguirre , Ivan Sipiran , Gabriel Montañana

This paper presents a novel method for fully automatic and convenient extrinsic calibration of a 3D LiDAR and a panoramic camera with a normally printed chessboard. The proposed method is based on the 3D corner estimation of the chessboard…

Computer Vision and Pattern Recognition · Computer Science 2017-08-21 Weimin Wang , Ken Sakurada , Nobuo Kawaguchi

Reflections in natural images commonly cause false positives in automated detection systems. These false positives can lead to significant impairment of accuracy in the tasks of detection, counting and segmentation. Here, inspired by the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-01 David Owen , Ping-Lin Chang

Depth perception is pivotal in many fields, such as robotics and autonomous driving, to name a few. Consequently, depth sensors such as LiDARs rapidly spread in many applications. The 3D point clouds generated by these sensors must often be…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Andrea Conti , Matteo Poggi , Filippo Aleotti , Stefano Mattoccia

Semantic segmentation of 3D LiDAR point clouds is important in urban remote sensing for understanding real-world street environments. This task, by projecting LiDAR point clouds and 3D semantic labels as sparse maps, can be reformulated as…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Xiaoyu Dong , Tiankui Xian , Wanshui Gan , Naoto Yokoya

Deep segmentation models often face the failure risks when the testing image presents unseen distributions. Improving model robustness against these risks is crucial for the large-scale clinical application of deep models. In this study,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-04 Yuhao Huang , Xin Yang , Xiaoqiong Huang , Jiamin Liang , Xinrui Zhou , Cheng Chen , Haoran Dou , Xindi Hu , Yan Cao , Dong Ni

Shadow detection in general photos is a nontrivial problem, due to the complexity of the real world. Though recent shadow detectors have already achieved remarkable performance on various benchmark data, their performance is still limited…

Computer Vision and Pattern Recognition · Computer Science 2024-09-06 Xiaowei Hu , Tianyu Wang , Chi-Wing Fu , Yitong Jiang , Qiong Wang , Pheng-Ann Heng

A key requirement for leveraging supervised deep learning methods is the availability of large, labeled datasets. Unfortunately, in the context of RGB-D scene understanding, very little data is available -- current datasets cover a small…

Computer Vision and Pattern Recognition · Computer Science 2017-04-12 Angela Dai , Angel X. Chang , Manolis Savva , Maciej Halber , Thomas Funkhouser , Matthias Nießner

Image classification benchmark datasets such as CIFAR, MNIST, and ImageNet serve as critical tools for model evaluation. However, despite the cleaning efforts, these datasets still suffer from pervasive noisy labels and often contain…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Zirui Pang , Haosheng Tan , Yuhan Pu , Zhijie Deng , Zhouan Shen , Keyu Hu , Jiaheng Wei

Regarding intelligent transportation systems, low-bitrate transmission via lossy point cloud compression is vital for facilitating real-time collaborative perception among connected agents, such as vehicles and infrastructures, under…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Hao Jing , Anhong Wang , Yifan Zhang , Donghan Bu , Junhui Hou

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

Compared to abstract features, significant objects, so-called landmarks, are a more natural means for vehicle localization and navigation, especially in challenging unstructured environments. The major challenge is to recognize landmarks in…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Benjamin Naujoks , Patrick Burger , Hans-Joachim Wuensche

As a fundamental building block in computer vision, edges can be categorised into four types according to the discontinuity in surface-Reflectance, Illumination, surface-Normal or Depth. While great progress has been made in detecting…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Mengyang Pu , Yaping Huang , Qingji Guan , Haibin Ling

Traditionally, 3d indoor datasets have generally prioritized scale over ground-truth accuracy in order to obtain improved generalization. However, using these datasets to evaluate dense geometry tasks, such as depth rendering, can be…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 HyunJun Jung , Weihang Li , Shun-Cheng Wu , William Bittner , Nikolas Brasch , Jifei Song , Eduardo Pérez-Pellitero , Zhensong Zhang , Arthur Moreau , Nassir Navab , Benjamin Busam

We present a new multi-sensor dataset for multi-view 3D surface reconstruction. It includes registered RGB and depth data from sensors of different resolutions and modalities: smartphones, Intel RealSense, Microsoft Kinect, industrial…

Major advancements in computer vision can primarily be attributed to the use of labeled datasets. However, acquiring labels for datasets often results in errors which can harm model performance. Recent works have proposed methods to…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Maya Srikanth , Jeremy Irvin , Brian Wesley Hill , Felipe Godoy , Ishan Sabane , Andrew Y. Ng

We study an important, yet largely unexplored problem of large-scale cross-modal visual localization by matching ground RGB images to a geo-referenced aerial LIDAR 3D point cloud (rendered as depth images). Prior works were demonstrated on…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Niluthpol Chowdhury Mithun , Karan Sikka , Han-Pang Chiu , Supun Samarasekera , Rakesh Kumar

Object detection through LiDAR-based point cloud has recently been important in autonomous driving. Although achieving high accuracy on public benchmarks, the state-of-the-art detectors may still go wrong and cause a heavy loss due to the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Shuangzhi Li , Zhijie Wang , Felix Juefei-Xu , Qing Guo , Xingyu Li , Lei Ma

Range-measuring sensors play a critical role in autonomous driving systems. While LiDAR technology has been dominant, its vulnerability to adverse weather conditions is well-documented. This paper focuses on secondary adverse conditions and…

Robotics · Computer Science 2023-09-20 Michael Loetscher , Nicolas Baumann , Edoardo Ghignone , Andrea Ronco , Michele Magno