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Point clouds are collected nowadays from a plethora of sensors, some having higher accuracies and higher costs, some having lower accuracies but also lower costs. Not only there is a large choice for different sensors, but also these can be…

计算机视觉与模式识别 · 计算机科学 2024-06-18 Francesco Pirotti , Alberto Guarnieri , Sebastiano Chiodini , Carlo Bettanini

Point cloud sequences are commonly used to accurately detect 3D objects in applications such as autonomous driving. Current top-performing multi-frame detectors mostly follow a Detect-and-Fuse framework, which extracts features from each…

计算机视觉与模式识别 · 计算机科学 2023-03-16 Chenhang He , Ruihuang Li , Yabin Zhang , Shuai Li , Lei Zhang

An image fusion method based on salient features is proposed in this paper. In this work, we have concentrated on salient features of the image for fusion in order to preserve all relevant information contained in the input images and tried…

计算机视觉与模式识别 · 计算机科学 2013-12-06 Sourav Pramanik , Debotosh Bhattacharjee

Cloud and cloud shadow segmentation are fundamental processes in optical remote sensing image analysis. Current methods for cloud/shadow identification in geospatial imagery are not as accurate as they should, especially in the presence of…

计算机视觉与模式识别 · 计算机科学 2021-04-27 Sorour Mohajerani , Parvaneh Saeedi

Solving the challenging problem of 3D object reconstruction from a single image appropriately gives existing technologies the ability to perform with a single monocular camera rather than requiring depth sensors. In recent years, thanks to…

计算机视觉与模式识别 · 计算机科学 2021-08-18 Guiju Ping , Mahdi Abolfazli Esfahani , Han Wang

Point cloud segmentation is a fundamental task in 3D scene understanding. Its progress is constrained by the high cost and time required for dense 3D annotations, making labeled samples difficult to obtain. Beyond annotation scarcity,…

计算机视觉与模式识别 · 计算机科学 2026-05-29 Thenukan Pathmanathan , Kanchan Keisham , Thangarajah Akilan

Object detection through either RGB images or the LiDAR point clouds has been extensively explored in autonomous driving. However, it remains challenging to make these two data sources complementary and beneficial to each other. In this…

计算机视觉与模式识别 · 计算机科学 2022-04-22 Zehui Chen , Zhenyu Li , Shiquan Zhang , Liangji Fang , Qinghong Jiang , Feng Zhao , Bolei Zhou , Hang Zhao

We propose to jointly learn multi-view geometry and warping between views of the same object instances for robust cross-view object detection. What makes multi-view object instance detection difficult are strong changes in viewpoint,…

机器学习 · 计算机科学 2019-07-26 Ahmed Samy Nassar , Sebastien Lefevre , Jan D. Wegner

Object detection from 3D point clouds remains a challenging task, though recent studies pushed the envelope with the deep learning techniques. Owing to the severe spatial occlusion and inherent variance of point density with the distance to…

计算机视觉与模式识别 · 计算机科学 2020-06-09 Liang Du , Xiaoqing Ye , Xiao Tan , Jianfeng Feng , Zhenbo Xu , Errui Ding , Shilei Wen

Accurate and robust object detection is critical for autonomous driving. Image-based detectors face difficulties caused by low visibility in adverse weather conditions. Thus, radar-camera fusion is of particular interest but presents…

计算机视觉与模式识别 · 计算机科学 2023-07-18 Huawei Sun , Hao Feng , Georg Stettinger , Lorenzo Servadei , Robert Wille

Computer vision techniques enable automated detection of sky pixels in outdoor imagery. In urban climate, sky detection is an important first step in gathering information about urban morphology and sky view factors. However, obtaining…

Due to the high cost of annotating accurate pixel-level labels, semi-supervised learning has emerged as a promising approach for cloud detection. In this paper, we propose CloudMatch, a semi-supervised framework that effectively leverages…

计算机视觉与模式识别 · 计算机科学 2026-01-08 Jiayi Zhao , Changlu Chen , Jingsheng Li , Tianxiang Xue , Kun Zhan

Being able to effectively identify clouds and monitor their evolution is one important step toward more accurate quantitative precipitation estimation and forecast. In this study, a new gradient-based cloud-image segmentation technique is…

计算机视觉与模式识别 · 计算机科学 2018-10-01 Negin Hayatbini , Kuo-lin Hsu , Soroosh Sorooshian , Yunji Zhang , Fuqing Zhang

Landmark recognition and matching is a critical step in many Image Navigation and Registration (INR) models for geostationary satellite services, as well as to maintain the geometric quality assessment (GQA) in the instrument data…

计算机视觉与模式识别 · 计算机科学 2020-12-24 Adrián Pérez-Suay , Julia Amorós-López , Luis Gómez-Chova , Jordi Muñoz-Marí , Dieter Just , Gustau Camps-Valls

We present a technique for efficiently synthesizing images of atmospheric clouds using a combination of Monte Carlo integration and neural networks. The intricacies of Lorenz-Mie scattering and the high albedo of cloud-forming aerosols make…

机器学习 · 计算机科学 2017-09-19 Simon Kallweit , Thomas Müller , Brian McWilliams , Markus Gross , Jan Novák

Image Splicing Localization (ISL) is a fundamental yet challenging task in digital forensics. Although current approaches have achieved promising performance, the edge information is insufficiently exploited, resulting in poor integrality…

计算机视觉与模式识别 · 计算机科学 2024-12-18 Yakun Niu , Pei Chen , Lei Zhang , Hongjian Yin , Qi Chang

We propose a real-time image fusion method using pre-trained neural networks. Our method generates a single image containing features from multiple sources. We first decompose images into a base layer representing large scale intensity…

计算机视觉与模式识别 · 计算机科学 2019-05-10 Fayez Lahoud , Sabine Süsstrunk

This paper considers image change detection with only a small number of samples, which is a significant problem in terms of a few annotations available. A major impediment of image change detection task is the lack of large annotated…

计算机视觉与模式识别 · 计算机科学 2023-11-08 Ke Liu , Zhaoyi Song , Haoyue Bai

Multi-class 3D object detection aims to localize and classify objects of multiple categories from point clouds. Due to the nature of point clouds, i.e. unstructured, sparse and noisy, some features benefit-ting multi-class discrimination…

计算机视觉与模式识别 · 计算机科学 2020-04-07 Xinge Zhu , Yuexin Ma , Tai Wang , Yan Xu , Jianping Shi , Dahua Lin

In recent years, deep learning has become a very active research tool which is used in many image processing fields. In this paper, we propose an effective image fusion method using a deep learning framework to generate a single image which…

计算机视觉与模式识别 · 计算机科学 2018-12-19 Hui Li , Xiao-Jun Wu , Josef Kittler