Results 31 to 40 of about 355,686 (307)

True coincidence summing correction factor for point source geometry with PHITS

Nuclear Engineering and Technology, 2023
In this study, it has been shown that the true coincidence summing correction factor can be obtained for the first time using the PHITS Monte Carlo program.
Esra Uyar
doaj   +1 more source

Efficient Large-Scale Point Cloud Geometry Compression

Sensors
Due to the significant bandwidth and memory requirements for transmitting and storing large-scale point clouds, considerable progress has been made in recent years in the field of large-scale point cloud geometry compression.
Shiyu Lu, Cheng Han, Huamin Yang
doaj   +1 more source

A Geometry Feature Aggregation Method for Point Cloud Classification and Segmentation

IEEE Access, 2021
In spite of the good performance of convolutional neural network (CNN) and graph neural network (GNN) in 3D point cloud classification and segmentation at present, to aggregate local information of point clouds and improve the robustness of geometric ...
Yong Wang, Chenke Yue, Xintong Tang
doaj   +1 more source

Central Trajectories

, 2017
An important task in trajectory analysis is clustering. The results of a clustering are often summarized by a single representative trajectory and an associated size of each cluster. We study the problem of computing a suitable representative of a set of
Staals, F., Sub Computational Geometry, Löffler, Maarten, Computational Geometry, Kreveld, Marc van, Löffler, M., van Kreveld, M.J., Staals, Frank   +7 more
core   +1 more source

2D Triangulation of Signals Source by Pole-Polar Geometric Models

Sensors, 2019
The 2D point location problem has applications in several areas, such as geographic information systems, navigation systems, motion planning, mapping, military strategy, location and tracking moves.
Aleksandro Montanha, Airton M. Polidorio, F. J. Dominguez-Mayo, María J. Escalona   +3 more
doaj   +1 more source

The Geometry of Points on Quantum Projectivizations

Journal of Algebra, 2001
Suppose $S$ is an affine, noetherian scheme, $X$ is a separated, noetherian $S$-scheme, $\mathcal{E}$ is a coherent ${\mathcal{O}}_{X}$-bimodule and $\mathcal{I} \subset T(\mathcal{E})$ is a graded ideal. We study the geometry of the functor $Γ_{n}$ of flat families of truncated $\mathcal{B}=T(\mathcal{E})/\mathcal{I}$-point modules of length $n+1$. We
openaire   +2 more sources

Wormhole inspired by non-commutative geometry

Physics Letters B, 2015
In the present Letter we search for a new wormhole solution inspired by noncommutative geometry with the additional condition of allowing conformal Killing vectors (CKV).
Farook Rahaman, Sreya Karmakar, Indrani Karar, Saibal Ray   +3 more
doaj   +1 more source

Probabilistic Smoothing Based Generation of a Reliable Lane Geometry Map With Uncertainty of a Lane Detector

IEEE Access, 2020
Since lane geometry information can be used for controlling the pose of an intelligent vehicle, a lane geometry map that contains the lane geometry information should have reliable accuracy. For generating the reliable lane geometry map, lane curve which
Seokwon Kim, Minchul Lee, Myoungho Sunwoo, Kichun Jo   +3 more
doaj   +1 more source

Weaknesses of Euclidean Geometry: A Step of Needs Analysis of Non-Euclidean Geometry Learning through an Ethnomathematics Approach

Edumatika, 2021
Non-Euclidean Geometry is a complex subject for students. It is necessary to analyze the weaknesses of Euclidean geometry to provide a basis for thinking about the need for learning non-Euclidean geometry.
Khathibul Umam Zaid Nugroho, Y. L. Sukestiyarno, Adi Nurcahyo   +2 more
doaj   +1 more source

Differential Geometry of Identity Maps: A Survey

, 2020
An identity map idM:M→M is a bijective map from a manifold M onto itself which carries each point of M return to the same point. To study the differential geometry of an identity map idM:M→M, we usually assume that the domain M and the range M ...
Bang-Yen Chen
core   +1 more source