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3D perception in point clouds is transforming the perception ability of future intelligent machines. Point cloud algorithms, however, are plagued by irregular memory accesses, leading to massive inefficiencies in the memory sub-system,…

硬件体系结构 · 计算机科学 2022-04-25 Yu Feng , Gunnar Hammonds , Yiming Gan , Yuhao Zhu

High-definition 3D city maps enable city planning and change detection, which is essential for municipal compliance, map maintenance, and asset monitoring, including both built structures and urban greenery. Conventional Digital Surface…

计算机视觉与模式识别 · 计算机科学 2026-02-11 Hezam Albagami , Haitian Wang , Xinyu Wang , Muhammad Ibrahim , Zainy M. Malakan , Abdullah M. Alqamdi , Mohammed H. Alghamdi , Ajmal Mian

We investigate conditional diffusion modeling for three-dimensional 21 cm lightcone emulation, focusing on cubes with a sky-plane size of $64\times64$ and a line-of-sight depth up to 1024 cells. Relative to earlier 2D studies, the 3D…

天体物理仪器与方法 · 物理学 2026-05-29 Bin Xia , John H. Wise

Airborne Laser Scanning (ALS) can collect point clouds across large areas, enabling large-scale forest inventory. However, ALS point clouds are sparse and noisy, resulting in inaccurate individual-tree-level forest inventory, such as stem…

计算机视觉与模式识别 · 计算机科学 2026-05-11 Jinyuan Shao , Sangyoong Park , Chunxi Zhao , Ayman Habib , Songlin Fei

In this paper we propose a planner for 3D exploration that is suitable for applications using state-of-the-art 3D sensors such as lidars, which produce large point clouds with each scan. The planner is based on the detection of a frontier -…

机器人学 · 计算机科学 2021-09-15 Ana Batinović , Tamara Petrović , Antun Ivanovic , Frano Petric , Stjepan Bogdan

Reconstructing a high-resolution 3D model of an object is a challenging task in computer vision. Designing scalable and light-weight architectures is crucial while addressing this problem. Existing point-cloud based reconstruction…

计算机视觉与模式识别 · 计算机科学 2019-01-28 Priyanka Mandikal , R. Venkatesh Babu

Point cloud based methods have produced promising results in areas such as 3D object detection in autonomous driving. However, most of the recent point cloud work focuses on single depth sensor data, whereas less work has been done on…

计算机视觉与模式识别 · 计算机科学 2020-05-12 Walid Bekhtaoui , Ruhan Sa , Brian Teixeira , Vivek Singh , Klaus Kirchberg , Yao-jen Chang , Ankur Kapoor

We present a passive stereo depth system that produces dense and accurate point clouds optimized for human environments, including dark, textureless, thin, reflective and specular surfaces and objects, at 2560x2048 resolution, with 384…

机器人学 · 计算机科学 2021-09-27 Krishna Shankar , Mark Tjersland , Jeremy Ma , Kevin Stone , Max Bajracharya

Reconstructing semantic 3D building models at the level of detail (LoD) 3 is a long-standing challenge. Unlike mesh-based models, they require watertight geometry and object-wise semantics at the fa\c{c}ade level. The principal challenge of…

计算机视觉与模式识别 · 计算机科学 2023-05-11 Olaf Wysocki , Yan Xia , Magdalena Wysocki , Eleonora Grilli , Ludwig Hoegner , Daniel Cremers , Uwe Stilla

The coordinate measuring machine(CMM) has been the benchmark of accuracy in measuring solid objects from nearly past 50 years or more. However with the advent of 3D scanning technology, the accuracy and the density of point cloud generated…

计算机视觉与模式识别 · 计算机科学 2024-09-02 Aman Gajendra Jain , Shital Chiddarwar

We present a dataset of 1000 video sequences of human portraits recorded in real and uncontrolled conditions by using a handheld smartphone accompanied by an external high-quality depth camera. The collected dataset contains 200 people…

Accurate 3D geometry acquisition is essential for a wide range of applications, such as computer graphics, autonomous driving, robotics, and augmented reality. However, raw point clouds acquired in real-world environments are often…

图形学 · 计算机科学 2025-08-26 Jinxi Wang , Ben Fei , Dasith de Silva Edirimuni , Zheng Liu , Ying He , Xuequan Lu

Owing to the recent, rapid development of computer technology, the resolution of atmospheric numerical models has increased substantially. With the use of next-generation supercomputers, atmospheric simulations using horizontal grid…

数值分析 · 数学 2016-05-25 H. Yamazaki , T. Satomura , N. Nikiforakis

3D computer vision models are commonly used in security-critical applications such as autonomous driving and surgical robotics. Emerging concerns over the robustness of these models against real-world deformations must be addressed…

计算机视觉与模式识别 · 计算机科学 2022-04-13 Gabriel Pérez S. , Juan C. Pérez , Motasem Alfarra , Silvio Giancola , Bernard Ghanem

Multi-modal 3D object detection models for automated driving have demonstrated exceptional performance on computer vision benchmarks like nuScenes. However, their reliance on densely sampled LiDAR point clouds and meticulously calibrated…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Till Beemelmanns , Quan Zhang , Christian Geller , Lutz Eckstein

With the push toward 6G commercialization, Frequency Range 3 (FR3) bands, specifically 7.125-8.4 GHz and 14.8-15.3 GHz, have become focal points for achieving wide-area, high-capacity coverage. However, practical deployment is often limited…

信号处理 · 电气工程与系统科学 2026-04-20 Enrui Liu , Pan Tang , Haiyang Miao , Qi Zhen , Jianhua Zhang

Point clouds have been recognized as a crucial data structure for 3D content and are essential in a number of applications such as virtual and mixed reality, autonomous driving, cultural heritage, etc. In this paper, we propose a set of…

计算机视觉与模式识别 · 计算机科学 2020-06-25 Maurice Quach , Giuseppe Valenzise , Frederic Dufaux

Semantic segmentation of indoor point clouds has found various applications in the creation of digital twins for robotics, navigation and building information modeling (BIM). However, most existing datasets of labeled indoor point clouds…

计算机视觉与模式识别 · 计算机科学 2025-01-30 Maxime Mérizette , Nicolas Audebert , Pierre Kervella , Jérôme Verdun

The integration of fine-scale multispectral imagery with deep learning models has revolutionized land use and land cover (LULC) classification. However, the atmospheric effects present in Top-of-Atmosphere sensor measured Digital Number…

计算机视觉与模式识别 · 计算机科学 2024-09-11 Soham Mukherjee , Yash Dixit , Naman Srivastava , Joel D Joy , Rohan Olikara , Koesha Sinha , Swarup E , Rakshit Ramesh

Environmental information can provide reliable prior information about human motion intent, which can aid the subject with wearable robotics to walk in complex environments. Previous researchers have utilized 1D signal and 2D images to…

计算机视觉与模式识别 · 计算机科学 2019-03-22 Kuangen Zhang , Jing Wang , Chenglong Fu