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Automatic estimation of skinning transformations is a popular way to deform a single reference shape into a new pose by providing a small number of control parameters. We generalize this approach by efficiently enabling the use of multiple…

图形学 · 计算机科学 2016-09-27 Alon Shtern , Matan Sela , Ron Kimmel

Forest biomass is a key influence for future climate, and the world urgently needs highly scalable financing schemes, such as carbon offsetting certifications, to protect and restore forests. Current manual forest carbon stock inventory…

计算机视觉与模式识别 · 计算机科学 2024-11-28 Gyri Reiersen , David Dao , Björn Lütjens , Konstantin Klemmer , Kenza Amara , Attila Steinegger , Ce Zhang , Xiaoxiang Zhu

To handle the different types of surface reconstruction tasks, we have replicated as well as modified a few of reconstruction methods and have made comparisons between the traditional method and data-driven method for reconstruction the…

多媒体 · 计算机科学 2021-12-28 Ziyu Li , Fangyang Ye , Xinran Guan

Accurate tree segmentation is a key step in extracting individual tree metrics from forest laser scans, and is essential to understanding ecosystem functions in carbon cycling and beyond. Over the past decade, tree segmentation algorithms…

计算机视觉与模式识别 · 计算机科学 2025-09-16 Yihang She , Andrew Blake , David Coomes , Srinivasan Keshav

Unmanned aerial vehicles (UAV) are evolving as an alternative tool to acquire land tenure data. UAVs can capture geospatial data at high quality and resolution in a cost-effective, transparent and flexible manner, from which visible land…

计算机视觉与模式识别 · 计算机科学 2017-09-07 Sophie Crommelinck , Michael Ying Yang , Mila Koeva , Markus Gerke , Rohan Bennett , George Vosselman

Large-scale delineation of individual trees from remote sensing imagery is crucial to the advancement of ecological research, particularly as climate change and other environmental factors rapidly transform forest landscapes across the…

计算机视觉与模式识别 · 计算机科学 2025-06-04 Michelle Chen , David Russell , Amritha Pallavoor , Derek Young , Jane Wu

This article presents a 3D point cloud map-merging framework for egocentric heterogeneous multi-robot exploration, based on overlap detection and alignment, that is independent of a manual initial guess or prior knowledge of the robots'…

机器人学 · 计算机科学 2023-11-21 Nikolaos Stathoulopoulos , Anton Koval , Ali-akbar Agha-mohammadi , George Nikolakopoulos

Terrestrial laser scanning (TLS) can obtain tree point cloud with high precision and high density. Efficient classification of wood points and leaf points is essential to study tree structural parameters and ecological characteristics. By…

计算机视觉与模式识别 · 计算机科学 2021-08-03 Jingqian Sun , Pei Wang , Zhiyong Gao , Zichu Liu , Yaxin Li , Xiaozheng Gan

State-of-the-art techniques proposed for 6D object pose recovery depend on occlusion-free point clouds to accurately register objects in 3D space. To reduce this dependency, we introduce a novel architecture called Iterative Hough Forest…

计算机视觉与模式识别 · 计算机科学 2017-01-10 Caner Sahin , Rigas Kouskouridas , Tae-Kyun Kim

Monocular visual SLAM has become an attractive practical approach for robot localization and 3D environment mapping, since cameras are small, lightweight, inexpensive, and produce high-rate, high-resolution data streams. Although numerous…

计算机视觉与模式识别 · 计算机科学 2018-06-08 Hasnain Vohra , Maxim Bazik , Matthew Antone , Joseph Mundy , William Stephenson

Up-to-date catalogs of the urban tree population are important for municipalities to monitor and improve quality of life in cities. Despite much research on automation of tree mapping, mainly relying on dedicated airborne LiDAR or…

计算机视觉与模式识别 · 计算机科学 2019-10-08 Steve Branson , Jan Dirk Wegner , David Hall , Nico Lang , Konrad Schindler , Pietro Perona

We study the problem of extracting accurate correspondences for point cloud registration. Recent keypoint-free methods bypass the detection of repeatable keypoints which is difficult in low-overlap scenarios, showing great potential in…

计算机视觉与模式识别 · 计算机科学 2023-07-18 Zheng Qin , Hao Yu , Changjian Wang , Yulan Guo , Yuxing Peng , Kai Xu

Relocalization, the process of re-establishing a robot's position within an environment, is crucial for ensuring accurate navigation and task execution when external positioning information, such as GPS, is unavailable or has been lost.…

机器人学 · 计算机科学 2025-04-11 David Akhihiero , Jason N. Gross

PointNet has recently emerged as a popular representation for unstructured point cloud data, allowing application of deep learning to tasks such as object detection, segmentation and shape completion. However, recent works in literature…

计算机视觉与模式识别 · 计算机科学 2019-12-13 Vinit Sarode , Xueqian Li , Hunter Goforth , Yasuhiro Aoki , Animesh Dhagat , Rangaprasad Arun Srivatsan , Simon Lucey , Howie Choset

Deformable object manipulation (DOM) with point clouds has great potential as non-rigid 3D shapes can be measured without detecting and tracking image features. However, robotic shape control of deformable objects with point clouds is…

机器人学 · 计算机科学 2023-11-29 Bohan Yang , Congying Sui , Fangxun Zhong , Yun-Hui Liu

Reliable large-scale data on the state of forests is crucial for monitoring ecosystem health, carbon stock, and the impact of climate change. Current knowledge of tree species distribution relies heavily on manual data collection in the…

计算机视觉与模式识别 · 计算机科学 2024-12-09 Hongjin Lin , Matthew Nazari , Derek Zheng

Accurate tree detection is of growing importance in applications such as urban planning, forest inventory, and environmental monitoring. In this article, we present an approach to creating tree maps by annotating them in 3D point clouds.…

信息检索 · 计算机科学 2023-08-29 Michael Kölle , Volker Walter , Ivan Shiller , Uwe Soergel

Autonomous UAV forestry operations require robust depth estimation with strong cross-domain generalization, yet existing evaluations focus on urban and indoor scenarios, leaving a critical gap for vegetation-dense environments. We present…

计算机视觉与模式识别 · 计算机科学 2026-01-28 Yida Lin , Bing Xue , Mengjie Zhang , Sam Schofield , Richard Green

Structure identification in cosmological simulations plays an important role in analysing simulation outputs. The definition of these structures directly impacts the inferred properties derived from these simulations. This paper proposes a…

星系天体物理 · 物理学 2025-01-16 Robel Geda , Romain Teyssier

We introduce Rectified Point Flow, a unified parameterization that formulates pairwise point cloud registration and multi-part shape assembly as a single conditional generative problem. Given unposed point clouds, our method learns a…

计算机视觉与模式识别 · 计算机科学 2025-10-27 Tao Sun , Liyuan Zhu , Shengyu Huang , Shuran Song , Iro Armeni