Results 41 to 50 of about 264,137 (214)

Point cloud data compression

open access: yes, 2023
The rapid growth in the popularity of Augmented Reality (AR), Virtual Reality (VR), and Mixed Reality (MR) experiences have resulted in an exponential surge of three-dimensional data. Point clouds have emerged as a commonly employed representation for capturing and visualizing three-dimensional data in these environments. Consequently, there has been a
Crespo Sagrado, Ismael   +1 more
openaire   +3 more sources

cXR+ Voxel-Based Semantic Compression for Networked Immersion

open access: yesIEEE Access, 2023
Extended Reality (XR) applications, which may encompass Augmented Reality (AR) and Virtual Reality (VR), commonly involve immersive virtual environments that are based on real physical environments.
Sifat Rezwan   +5 more
doaj   +1 more source

Radiation feedback on dusty clouds during Seyfert activity [PDF]

open access: yes, 2011
We investigate the evolution of dusty gas clouds falling into the centre of an active Seyfert nucleus. Two-dimensional high-resolution radiation hydrodynamics simulations are performed to study the fate of single clouds and the interaction between two ...
A. Burkert   +34 more
core   +3 more sources

Temporal Estimation of Non-Rigid Dynamic Human Point Cloud Sequence Using 3D Skeleton-Based Deformation for Compression

open access: yesSensors, 2023
This paper proposes an algorithm for transmitting and reconstructing the estimated point cloud by temporally estimating a dynamic point cloud sequence. When a non-rigid 3D point cloud sequence (PCS) is input, the sequence is divided into groups of point ...
Jin-Kyum Kim   +4 more
doaj   +1 more source

Subjective performance evaluation of bitrate allocation strategies for MPEG and JPEG Pleno point cloud compression [PDF]

open access: yesEURASIP Journal on Image and Video Processing
The recent rise in interest in point clouds as an imaging modality has motivated standardization groups such as JPEG and MPEG to launch activities aiming at developing compression standards for point clouds.
Davi Lazzarotto   +2 more
semanticscholar   +1 more source

Multi-Tenant C-RAN With Spectrum Pooling: Downlink Optimization Under Privacy Constraints [PDF]

open access: yes, 2018
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 67, NO.
Park, Seok-Hwan   +2 more
core   +3 more sources

D-DPCC: Deep Dynamic Point Cloud Compression via 3D Motion Prediction [PDF]

open access: yesInternational Joint Conference on Artificial Intelligence, 2022
The non-uniformly distributed nature of the 3D Dynamic Point Cloud (DPC) brings significant challenges to its high-efficient inter-frame compression. This paper proposes a novel 3D sparse convolution-based Deep Dynamic Point Cloud Compression (D-DPCC ...
Tingyu Fan   +4 more
semanticscholar   +1 more source

What determines the density structure of molecular clouds? A case study of Orion B with Herschel [PDF]

open access: yes, 2013
A key parameter to the description of all star formation processes is the density structure of the gas. In this Letter, we make use of probability distribution functions (PDFs) of Herschel column density maps of Orion B, Aquila, and Polaris, obtained ...
André, Ph.   +21 more
core   +5 more sources

Point Cloud Geometry Compression Based on Multi-Layer Residual Structure

open access: yesEntropy, 2022
Point cloud data are extensively used in various applications, such as autonomous driving and augmented reality since it can provide both detailed and realistic depictions of 3D scenes or objects.
Jiawen Yu   +4 more
doaj   +1 more source

Magnetohydrodynamics of Cloud Collisions in a Multi-phase Interstellar Medium [PDF]

open access: yes, 1998
We extend previous studies of the physics of interstellar cloud collisions by beginning investigation of the role of magnetic fields through 2D magnetohydrodynamic (MHD) numerical simulations.
Andrea Ferrara   +15 more
core   +2 more sources

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