Results 21 to 30 of about 140,274 (260)

Virtual Namesake Point Multi-Source Point Cloud Data Fusion Based on FPFH Feature Difference

open access: yesSensors, 2021
There are many sources of point cloud data, such as the point cloud model obtained after a bundle adjustment of aerial images, the point cloud acquired by scanning a vehicle-borne light detection and ranging (LiDAR), the point cloud acquired by ...
Li Zheng, Zhukun Li
doaj   +1 more source

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

open access: yesCoRR, 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 ...
Xingyi Li   +3 more
openaire   +2 more sources

A partial overlapping point cloud registration method based on dynamic feature matching

open access: yesDianxin kexue, 2021
The point cloud registration method can effectively complete the registration of point clouds with different overlap rates and various sizes, and ensure the accuracy of the 3D reconstruction model.To address the above issues, a partial overlapping point ...
Hui DU   +3 more
doaj   +2 more sources

Point Cloud Classification Algorithm Based on the Fusion of the Local Binary Pattern Features and Structural Features of Voxels

open access: yesRemote Sensing, 2021
Point cloud classification is a key technology for point cloud applications and point cloud feature extraction is a key step towards achieving point cloud classification.
Yong Li   +5 more
doaj   +1 more source

Projection-Based Point Convolution for Efficient Point Cloud Segmentation

open access: yesIEEE Access, 2022
Understanding point cloud has recently gained huge interests following the development of 3D scanning devices and the accumulation of large-scale 3D data.
Pyunghwan Ahn   +4 more
doaj   +1 more source

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

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

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

Georeferenced Point Clouds: A Survey of Features and Point Cloud Management [PDF]

open access: yesISPRS International Journal of Geo-Information, 2013
This paper presents a survey of georeferenced point clouds. Concentration is, on the one hand, put on features, which originate in the measurement process themselves, and features derived by processing the point cloud. On the other hand, approaches for the processing of georeferenced point clouds are reviewed.
Johannes Otepka   +4 more
openaire   +4 more sources

Point Cloud GAN

open access: yesCoRR, 2018
Generative Adversarial Networks (GAN) can achieve promising performance on learning complex data distributions on different types of data. In this paper, we first show a straightforward extension of existing GAN algorithm is not applicable to point clouds, because the constraint required for discriminators is undefined for set data.
Chun-Liang Li   +4 more
openaire   +3 more sources

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