Results 21 to 30 of about 1,041,889 (332)

End-to-End Point Cloud Completion Network with Attention Mechanism

open access: yesSensors, 2022
We propose a conceptually simple, general framework and end-to-end approach to point cloud completion, entitled PCA-Net. This approach differs from the existing methods in that it does not require a “simple” network, such as multilayer perceptrons (MLPs),
Yaqin Li   +4 more
doaj   +1 more source

Multistage Adaptive Point-Growth Network for Dense Point Cloud Completion

open access: yesRemote Sensing, 2022
The point cloud data from actual measurements are often sparse and incomplete, making it difficult to apply them directly to visual processing and 3D reconstruction.
Ruidong Hao   +6 more
doaj   +1 more source

Linear-Based Incremental Co-Registration of MLS and Photogrammetric Point Clouds

open access: yesRemote Sensing, 2021
Today, mobile laser scanning and oblique photogrammetry are two standard urban remote sensing acquisition methods, and the cross-source point-cloud data obtained using these methods have significant differences and complementarity.
Shiming Li   +4 more
doaj   +1 more source

Consistent ICP for the registration of sparse and inhomogeneous point clouds [PDF]

open access: yes, 2016
In this paper, we derive a novel iterative closest point (ICP) technique that performs point cloud alignment in a robust and consistent way. Traditional ICP techniques minimize the point-to-point distances, which are successful when point clouds contain ...
Goeman, Werner   +3 more
core   +1 more source

The Devils in the Point Clouds: Studying the Robustness of Point Cloud Convolutions

open access: yes, 2021
Recently, there has been a significant interest in performing convolution over irregularly sampled point clouds. Since point clouds are very different from regular raster images, it is imperative to study the generalization of the convolution networks more closely, especially their robustness under variations in scale and rotations of the input data ...
Li, Xingyi   +3 more
openaire   +2 more sources

NICP: Dense normal based point cloud registration [PDF]

open access: yes, 2015
In this paper we present a novel on-line method to recursively align point clouds. By considering each point together with the local features of the surface (normal and curvature), our method takes advantage of the 3D structure around the points for the ...
Grisetti, Giorgio, Serafin, Jacopo
core   +1 more source

Restoration of Individual Tree Missing Point Cloud Based on Local Features of Point Cloud

open access: yesRemote Sensing, 2022
LiDAR (Light Detection And Ranging) technology is an important means to obtain three-dimensional information of trees and vegetation. However, due to the influence of scanning mode, environmental occlusion and mutual occlusion between tree canopies and ...
Wei Cao, Jiayi Wu, Yufeng Shi, Dong Chen
doaj   +1 more source

VIPDA: A Visually Driven Point Cloud Denoising Algorithm Based on Anisotropic Point Cloud Filtering

open access: yesFrontiers in Signal Processing, 2022
Point clouds (PCs) provide fundamental tools for digital representation of 3D surfaces, which have a growing interest in recent applications, such as e-health or autonomous means of transport.
Tiziana Cattai   +3 more
doaj   +1 more source

Point clouds in BIM [PDF]

open access: yesIOP Conference Series: Earth and Environmental Science, 2016
The representation of physical buildings in Building Information Models (BIM) has been a subject of research since four decades in the fields of Construction Informatics and GeoInformatics. The early digital representations of buildings mainly appeared as 3D drawings constructed by CAD software, and the 3D representation of the buildings was only ...
Ivan Kunchev   +2 more
openaire   +1 more source

New instruments and technologies for Cultural Heritage survey: full integration between point clouds and digital photogrammetry [PDF]

open access: yes, 2010
In the last years the Geomatic Research Group of the Politecnico di Torino faced some new research topics about new instruments for point cloud generation (e.g. Time of Flight cameras) and strong integration between multi-image matching techniques and 3D
Chiabrando, Filiberto   +3 more
core   +1 more source

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